Biomedical Science - BSc (Hons)

This course will provide an introduction to biomolecules in living matter. The simplicity of the building blocks of macromolecules (amino acids, monosaccharides, fatty acids and purine and pyrimidine bases) will be contrasted with the enormous variety and adaptability that is obtained with the different macromolecules (proteins, carbohydrates, lipids and nucleic acids). The nature of the electronic and molecular structure of macromolecules and the role of non-covalent interactions in an aqueous environment will be highlighted. The unit will be delivered though lectures, formative practicals and related feedback sessions to ensure students fully understand what is expected of them. Short tests (formative assessment) will be used throughout the unit to test students' knowledge and monitor that the right material has been extracted from the lectures.

Find out more about BI300

This course aims to introduce the 'workers' present in all cells – enzymes, and their role in the chemical reactions that make life possible.

The fundamental characteristics of enzymes will be discussed – that they are types of protein that act as catalysts to speed up reactions, or make unlikely reactions more likely. Methods for analysis of enzymic reactions will be introduced (enzyme kinetics). Control of enzyme activity, and enzyme inhibition will be discussed.

Following on from this the pathways of intermediary metabolism will be introduced. Enzymes catalyse many biochemical transformations in living cells, of which some of the most fundamental are those which capture energy from nutrients. Energy capture by the breakdown (catabolism) of complex molecules and the corresponding formation of NADH, NADPH, FADH2 and ATP will be described. The central roles of the tricarboxylic acid cycle and oxidative phosphorylation in aerobic metabolism will be detailed. The pathways used in animals for catabolism and biosynthesis (anabolism) of some carbohydrates and fat will be covered, as well as their control. Finally how humans adapt their metabolism to survive starvation will be discussed.

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This module addresses key themes and experimental techniques in molecular and cellular illustrated by examples from a range of microbes animals and plants . It covers basic cell structure, and organisation including organelles and their functions, cytoskeleton, cell cycle control and cell division. The control of all living processes by genetic mechanisms is introduced and an opportunity to handle and manipulate genetic material provided in the laboratory. Monitoring of students' knowledge and progress will be provided by a multi-choice test and the laboratory report, with feedback.

Functional Geography of Cells: Introduction to cell organisation, variety and cell membranes. Molecular traffic in cells. Organelles involved in energy and metabolism. Eukaryotic cell cycle. Chromosome structure & cell division. Meiosis and recombination. Cytoskeleton.

Molecular biology: The structure and function of genetic material. Chromosomes, chromatin structure, mutations, DNA replication, DNA repair and recombination, Basic mechanisms of transcription, mRNA processing and translation.

Techniques in molecular and cellular biology: Methods in cell Biology - light and electron microscopy; cell culture, fractionation and protein isolation/electrophoresis; antibodies, radiolabelling. Gene Cloning – vectors, enzymes, ligation, transformation, screening; hybridisation, probes and blots, PCR, DNA sequencing. Applications of recombinant DNA technology.

Laboratory: PCR amplification of DNA and gel analysis.

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This module will consider the anatomy and function of normal tissues, organs and systems and then describe their major pathophysiological conditions. It will consider the aetiology of the condition, its biochemistry and its manifestation at the level of cells, tissues and the whole patient. It may also cover the diagnosis and treatment of the disease condition.

Indicative topics will include:

Cells and tissues

Membrane dynamics

Cell communication and homeostasis

Introduction to the nervous system

The cardiovascular system

The respiratory system

The immune system and inflammation

Blood cells and clotting

The Urinary system

The digestive system, liver and pancreas

Find out more about BI307

Subject-based and communication skills are relevant to all the bioscience courses. This module allows you to become familiar with practical skills, the analysis and presentation of biological data and introduces some basic mathematical and statistical skills as applied to biological problems. It also introduces you to the computer network and its applications and covers essential skills such as note-taking and essay writing.

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This module is an introduction to Mendelian genetics and also includes human pedigrees, quantitative genetics, and mechanisms of evolution.

Find out more about BI324

Students without A2 Chemistry (equivalent) on entry take Phases 1+2+3

N.B. Students with A2 Chemistry or equivalent below grade C will follow Phases 1+2+3

This approach allows fundamental concepts (Phase 1) to be taught to non-A2 Chemistry students. All students will participate in the core section: Phase 2.

This module links to Biological Chemistry A with identically designed phases (1, 2 and 3) to maximise teaching efficiency across all programs in the School of Biosciences.

Phase 1: Autumn Term (5 lectures, 6 x 2 hr Workshops)

Basic chemical concepts for biology will be taught and applied through examples in a workshop atmosphere. The five workshop topics covered are: (i) Atoms and states of matter (ii) valence and bonding (iii) basic organic chemistry for biologists (iv) molecular shapes and isomerism in biology and (iv) chemical reactivity and chemical equations.

Assessment feedback of basic chemistry (1 session/lecture)

Phase 2: Autumn Term (9 lectures, 2 x 2 hr Workshop, 3 extra support lectures)

Chemical and biochemical thermodynamics. Topics covered are: (i) energetic and work, (ii) enthalpy, entropy and the laws of thermodynamics (iii) Gibbs free energy, equilibrium and spontaneous reactions, (iv) Chemical and biochemical equilibrium (including activity versus concentration and Le Chatelier's principle). The two hour workshop is designed to be delivered as small group sessions to cover the applications and practice of thermodynamics concepts.

Chemistry applied to biological concepts: bonding, valence, hybridisation as well as biological applied thermodynamic process (biomolecular association/dissociation).

Assessment feedback (1 session/lecture)

Phase 3: Spring Term (17 lectures, 2 x 2 hr workshop)

Fundamental organic chemistry with biological examples. Topics covered: (i) Introduction and basic functional chemistry, (ii) Isomerism and stereochemistry, (iii) Reaction mechanisms, (iv) Alkanes/alkyl halides/alkenes/alkynes, (v) Aromatic compounds, (vi) Heterocyclic compounds, (vii) Amines and alcohols (viii) Carbonyl compounds and carboxylic acids and (ix) Biological inorganic chemistry. The two workshops is designed to be delivered as small group sessions to cover the applications of reaction mechanisms and reaction schemes.

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Students with A2 Chemistry (equivalent) on entry take Phases 2+3+4

Biology students with A2 Chemistry (or equivalent) will obtain additional chemical concepts (Phase 4) as their chemistry qualification at A2 will already furnish them with concepts from Phase 1. All students will participate in the core section: Phase 2.

Phases 2+3+4 students will use the Phase 1 coursework test as a formative assessment to recognise their required chemical knowledgebase as obtained at A2 level. This provides an opportunity to identify students requiring additional support.

This module links to Biological Chemistry A with identically designed phases (1, 2 and 3) to maximise teaching efficiency across all programs in the School of Biosciences.

Phase 2: Autumn Term (9 lectures, 2 x 2 hr Workshop, 3 extra support lectures)

Chemical and biochemical thermodynamics. Topics covered are: (i) energetic and work, (ii) enthalpy, entropy and the laws of thermodynamics (iii) Gibbs free energy, equilibrium and spontaneous reactions, (iv) Chemical and biochemical equilibrium (including activity versus concentration and Le Chatelier's principle). The two hour workshop is designed to be delivered as small group sessions to cover the applications and practice of thermodynamics concepts.

Chemistry applied to biological concepts: bonding, valence, hybridisation as well as biological applied thermodynamic process (biomolecular association/dissociation).

Assessment feedback (1 session/lecture)

Phase 3: Spring Term (17 lectures, 2 x 2 hr workshop)

Fundamental organic chemistry with biological examples. Topics covered: (i) Introduction and basic functional chemistry, (ii) Isomerism and stereochemistry, (iii) Reaction mechanisms, (iv) Alkanes/alkyl halides/alkenes/alkynes, (v) Aromatic compounds, (vi) Heterocyclic compounds, (vii) Amines and alcohols (viii) Carbonyl compounds and carboxylic acids and (ix) Biological inorganic chemistry. The two workshops is designed to be delivered as small group sessions to cover the applications of reaction mechanisms and reaction schemes.

Phase 4: Spring Term (8 lectures, 2 x 1 hr workshop)

Find out more about BI3220

This module will consider the anatomy and function of the immune system and immunopathology and then consider the diseases and microorganisms that affect the different organs and tissues of the human body. Indicative topics will include inflammation, innate and adaptive immunity to pathogens, immune defence mechanisms against bacterial, viral and parasitic infections, antibody classes and functions, antigen processing and presentation, complement, the generation of antibody diversity, cell communication and immunopathology, including autoimmunity, hypersensitivity and transplant rejection. In the medical microbiology section of the module, indicative topics will include epidemiology, virology, parasitology, fungal infections, skin infections, GI tract infections, CNS infections, respiratory tract infections, UTI and STD infections.

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Reproductive System: Male and female reproductive systems; Endocrine control of reproduction; Fertilisation; Early embryogenesis; Pregnancy and Parturition; Reproductive disorders.

Muscle: Muscle types: skeletal, smooth and cardiac; Structure of muscle; Molecular basis of contraction; Regulation of contraction including neural control; Energy requirements of muscle; Types of movement: reflex, voluntary, rhythmic; Muscle disorders.

Nervous System: Cells of the nervous system- neurons and glia; Electrical properties of neurons- action potential generation and conduction; Synaptic structure and function- transmitters and receptors; Structural organization of the central nervous system (CNS) and function of individual regions; Organization and function of the peripheral nervous system (PNS)- somatic motor, autonomic (sympathetic and parasympathetic) and sensory; Sensory systems- vision, hearing, taste, smell, pain. Disorders of the nervous system.

Endocrine System: Endocrine glands; Classes of hormones; Mechanisms of hormone action; Regulation of hormone release; Endocrine disorders.

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Introduction and basic principles of drug action: key drug targets including major receptor subtypes, ion channels, transporters, and structure-function relationships

Systems pharmacology: the biological basis of diseases states affecting different physiological systems, therapeutic approaches to treating these diseases, and the cellular/molecular mode of action of drugs used. Indicative diseases may include hypertension, asthma, Parkinson's disease, schizophrenia, infertility, depression and anxiety.

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This module covers the general principles of metabolic disorders and focuses on pathways, enzyme mechanisms, and diseases associated with:

Energy metabolism

Amino acid/nucleotide metabolism

The urea cycle

Cholesterol metabolism

Vitamin metabolism

Heme synthesis/breakdown

Find out more about BI520

This module will introduce the student to two of the four main branches of laboratory medicine, Clinical Biochemistry and Cellular Pathology, and begin to develop the skills students will require to work effectively and safely within a clinical setting.

Clinical Biochemistry:

The use of the laboratory, quality assurance and techniques (including Instrumentation and Automation, Clinical Applications, Antigen-Antibody Reactions, Separation techniques) will be introduced using the various screening and testing procedures as below.

Screening for disease – concepts, rationale and screening programmes, application of biochemical techniques to paediatrics and inborn errors of metabolism, tumour markers, liver function, iron and porphyrias, enzymes and their use in laboratory medicine, clinical applications of protein biochemistry, nutrition in health and disease, lipids and atherosclerosis.

Cellular Pathology:

Application of histological and cytological techniques in a clinical setting including cell and tissue sampling techniques for histological and cytological diagnosis.

Use histochemical and immunohistochemical stain techniques for diagnosis and selection of treatment.

Microscopic methods used in cellular pathology.

Quality control and quality assurance.

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Communication Skills in Biosciences: Essay writing, oral presentations, laboratory reports, the scientific literature and literature reviews. Working in groups.

Techniques in Biomolecular Science: Immunochemistry. Monoclonal and polyclonal antibody production, immuno-chromatography, ELISA and RIA. Electrophoresis, Immunoblotting, Protein Determination, Activity Assays, Purification.

Computing for Biologists: Bioinformatics, phylogenetic trees, database searches for protein/DNA sequences.

Mini-project – introduction to research skills: Students will work in groups of eight to undertake directed experimental work (Group Project) before extending the project further through self-directed experiments working as a pair (Mini Project).

Careers: The programme will be delivered by the Careers Advisory Service and will review the types of careers available for bioscience students. The sessions will incorporate personal skills, careers for bioscience graduates, records of achievement, curriculum vitae preparation, vacation work, postgraduate study, interview skills and action planning.

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Introduction: The ecological, medical, scientific and commercial importance of bacteria. Bacterial evolution and taxonomy.

Microbial biodiversity at the structural level: Composition of the average bacterial cell and basic bacterial cell structure. Gram positive and gram negative. Archea. Organisation of DNA. Membranes and the transport of small molecules into and out of the cell. Peptidoglycan and LPS and their importance in pathogenesis. The location and function of proteins. Capsule, flagella and adhesins.

Introduction to growth, fuelling and biosynthesis: Division by binary fission, including growth equations. Growth in batch and chemostat cultures; liquid vs. solid media. Nutritional and non-nutritional factors affecting growth (temperature, osmolarity, pH and antibiotics). Physiological state and balanced growth. Adaptation to extreme conditions.

Microbial biodiversity at the physiological and biochemical level: The diversity in bacterial metabolism (nutrient sources (particularly carbon and nitrogen)), photosynthesis, aerobic and anaerobic growth and alternative terminal electron acceptors. Fermentation. The inverse relationship between growth factor requirements and biochemical complexity. The ecological significance of bacteria.

Synthesis, localisation and assembly of macromolecular structures: DNA replication and transcription. Translational and protein localisation, assembly of flagella and adhesins. Membranes, including LPS. Peptidoglycan. Antibiotics that inhibit peptidoglycan biosynthesis. Capsules.

Microbial communities and ecology: growth and survival in the real world (e.g. soils and sediments), studying populations and individuals. Biofilms and complex communities. Diauxie and growth.

Signalling and physiological control: Introduction to bacterial genetics. The regulation of gene expression at the transcriptional and post-transcriptional level in response to environmental factors Chemotaxis.

Practical: "Antibiotics" in which students follow the growth of bacteria upon treatment with bacteriostatic and bactericidal antibiotics and answer questions about data concerning the mode of action of antibiotic resistance presented in the laboratory manual.

Workshop: "Growth and viable counts" in which the students are given numerical data + growth equations and have to define factors such as (i) dilutions needed to give specific cell numbers, (ii) generations of growth to achieve specific cells numbers (iii) growth rate/doubling time. Designed to give students the skills required to manipulate bacterial cells to achieve correct cell density and growth phase for practical work.

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The module deals with the molecular mechanisms of gene expression and its regulation in organisms ranging from viruses to man. This involves descriptions of how genetic information is stored in DNA and RNA, how that information is decoded by the cell and how this flow of information is controlled in response to changes in environment or developmental stage. Throughout, the mechanisms in prokaryotes and eukaryotes will be compared and contrasted and will touch on the latest developments in how we can analyse gene expression, and what these developments have revealed.

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The cell is the fundamental structural unit in living organisms. Eukaryotic cells are compartmentalized structures that like prokaryotic cells, must perform several vital functions such as energy production, cell division and DNA replication and also must respond to extracellular environmental cues. In multicellular organisms, certain cells have developed modified structures, allowing them to fulfil highly specialised roles. This module reviews the experimental approaches that have been taken to investigate the biology of the cell and highlights the similarities and differences between cells of complex multicellular organisms and microbial cells. Initially the functions of the cytoskeleton and certain cellular compartments, particularly the nucleus, are considered. Later in the unit, the mechanisms by which newly synthesised proteins are secreted or shuttled to their appropriate cellular compartments are examined.

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Principles of metabolic regulation: Allostery, cooperativity, phosphorylation, and hormonal control. Metabolic regulation in response to cellular energy status.Transcriptional regulation.

Plant metabolism: Photosynthesis, carbon fixation, and secondary metabolites.

Microbial metabolism: Nitrogen cycle, stress responses, omics approaches, metals, and secondary metabolites.

Metabolism in biotechnology: Manipulating microbial metabolism for the production of useful compounds. Manipulating mammalian cell metabolism in biotechnology.

Find out more about BI521

Part A: Eukaryotic pathogens (parasites)

Parasites and pathogenicity, transmission and diversity.

• Parasites and pathogenicity, transmission and diversity.

• Mechanisms of Pathogenesis and methods for studying them.

• Microbial pathogenicity: variations on a common theme.

• Definitions on parasitic lifestyle.

• Investigations on worldwide parasitic outbreaks and their socio-economical effects.

• Eukaryotic pathogens and their effect in the microbiome.

Part B: Bacterial pathogens

• Methodology of studying bacterial pathogenesis.

• Virulence factors including toxins and adhesins.

• Applications of virulence factors in the treatment and prevention of disease.

Part C: Viral pathogens

• Viruses and Human Disease - transmission and spread, overview of important human virus infections, mechanisms of transmission (Aerosol, Oral-faecal, Sexual etc.), epidemiology - patterns of endemic and epidemic disease.

• Mechanisms of Pathogenesis - spread in the body, disease mechanisms, mechanisms of cell killing (Herpes simplex and Polio), immunopathology and auto-immune disease.

• Virus infection – long term consequences for the host, escape through mutation and natural selection, disabling the immune system, avoidance mechanisms.

• Viruses and Cancer - mechanisms of virus transformation (EBV, Retroviruses & Papilloma), viruses and human cancer (Cervical carcinoma, Hepatocellular Carcinoma & Burkitt Lymphoma).

Part D: Human fungal pathogens

• Fungi and Human Disease - overview of major human fungal infections, clinical picture, diagnosis and mechanisms of transmission, epidemiological aspects of fungal infections.

• Mechanisms of Fungal Pathogenesis - adherence, invasion of eukaryotic cells, morphogenesis, virulence factors.

• Host resistance to infection and antifungal chemotherapy - host defence mechanisms to fungal infections, role of the humoral and cellular immune response, antifungal chemotherapy: azoles, polyenes, echinocandines and antimetabolites, future developments for the treatment of fungal infections.

Find out more about BI606

Early in the Autumn term, projects are assigned to students by the project co-ordinator (a member of academic staff), where possible in accordance with student choice. Students then meet with their project supervisor to discuss the objectives of the project and obtain guidance on background reading. During the Autumn term students write a brief formative literature review on the project topic providing them with a good background before embarking on the project work.

The main project activities take place in the Spring term. Students taking laboratory projects spend 192 hours (24 hours per week for 8 weeks) in the lab planning, carrying out and documenting experiments. A further 108 hours are allowed for background reading and report writing. There are informal opportunities to discuss the project work and relevant literature with the supervisor and other laboratory staff. Formal meetings may be arranged at the discretion of the student and supervisor. Students undertaking non-laboratory projects are based in the library or, occasionally, in the laboratory; they are expected to dedicate 300 hours to their project work. Non-laboratory students are strongly encouraged to meet with the supervisor at least once a week to discuss progress and ideas and to resolve problems. At the end of the formal project time, students are allowed time to complete the final project report, although they are encouraged to start writing as early as possible during the Spring term. The supervisor provides feedback on content and style of a draft of the report. In addition, students are expected to deliver their findings in presentation lasting 10 minutes with 5 minutes of questions.

• Wet/Dry Laboratory and Computing: practical research undertaken in the teaching laboratories, or on computers followed by preparation of a written report

• Dissertation: library-based research leading to production of a report in the style of a scientific review

• Business: development of a biotechnology business plan

• Communication: similar to dissertation projects but with an emphasis on presenting the scientific topic to a general, non-scientist audience

Find out more about BI600

The aim of this Advanced Immunology module is to review topical aspects of advanced immunology with emphasis on the regulation of the immune response, and the role of dysfunctional immune systems in the aetiology of a variety of disease states. Indicative topics include antigen processing and presentation, transplant rejection, autoimmunity, hypersensitivity, cell migration homing and extravasation, cytokines, tumour immunology, mucosal immunology and autophagy.

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This module describes the anatomy, physiology, pathology, and therapy of the blood and blood forming tissues, including the bone marrow. It covers a wide range of disorders including haematological malignancies, infection with blood-borne parasites that cause malaria, and inappropriate clotting activities such as deep vein thrombosis.

Haematology:

An introduction to haematology: module outline, aims and objectives

Haemopoiesis and the bone marrow

The red cell: structure and function

Inherited abnormalities of red cells

Anaemias: acquired and inherited

White blood cells in health and disease

An introduction to haematological malignancies

Bleeding disorders and their laboratory investigation

Thrombophilia

Blood-borne parasites

Blood transfusion:

The ABO and Rhesus blood group systems

Other blood group systems

Blood banking techniques

Find out more about BI627

A synopsis of the curriculum

1. Outline of microbial physiology and genetics part II

2. Microbial taxonomy and phylogenetics

3. Microbial homeostasis - regulation of primary and secondary metabolism

4. Genomic regulation - Transcriptional and post-transcriptional regulation of gene expression

5. Experimental approaches used to study microbial physiology, microbial genomes and gene expression

6. Microbial biochemistry

7. Microbial biodiversity and complex signalling in the environment

8. Application of microbes in biotechnology

Practical on bacterial transcriptional regulation using gene-expression reporter fusions

Group presentation of a research paper relating to topic areas on "Microbial biodiversity at the physiological and biochemical level".

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Bioinformatics Data sources & Sequence analysis: Databases and data availability. Using sequence data for analysis – sequence searching methods, multiple sequence alignments, residue conservation, Protein domains and families.

Protein Bioinformatics Methods: Protein structure and function prediction. Prediction of binding sites/interfaces with small ligands and with other proteins. Bioinformatics analyses using protein data.

Genomics: An introduction to the analysis of genomic data, primarily focussing on the data available from genome sequencing – how it can be used to study genetic variants and compare genomes (i.e. comparative and functional genomics).

Find out more about BI638

The module aims to develop understanding and analytical skills in oncology, based around interactive seminars wherein students will analyse, present, and discuss the relevant research literature. The students will gain experience in scientific design, literature analysis, scientific communication, and the analysis of experimental data.

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Cancer formation and progression; underlying factors, cancer cell heterogeneity, uncontrolled cell division, invasive growth/ metastasis formation.

The Molecular Biology of Cancer: (Proto-)Oncogenes, tumour suppressor genes, cell cycle control, cell death.

Cancer therapies.

Find out more about BI642

The module deals with basic neuroanatomy and molecular and cellular neurobiology, such as transmission of signals within the nervous system and sensory perception. It explores more complex functions of the nervous system, e.g. behavioural and cognitive functions including learning, memory, emotions and appetite control. Throughout the module both the normal nervous system and disorders that arise as a consequence of abnormalities will be covered.

Find out more about BI643

A synopsis of the curriculum

The module overviews the importance of studying ageing, the organisms and methods used to do so and considers how organisms age together with providing a detailed understanding of the processes and molecular mechanisms that govern ageing.

Introduction

Importance and principles of ageing research

Why do organisms age and theories of ageing: e.g. Damage theory, telomeres, genetics and trade off theories.

How ageing and lifespan is measured

Overview of processes and pathways controlling ageing

Methods in ageing research

Model Organisms: Benefits and problems associated with studying ageing in model organisms. Including: Yeast, worms, flies, mice, primates.

Systems approaches to studying ageing: e.g. high throughput DNA/RNA sequencing, high throughput proteomics and, metabolomics. Pros and cons of these methods, what we have learned from them.

Signalling pathways that control ageing

Insulin signalling pathway and Target of Rapamycin (ToR) pathway

Organisation of pathways and the molecules involved, how they were discovered to be implicated in lifespan and ageing, ways of modelling and studying their molecular detail in animals e.g. genetic/ epistasis analysis

The processes downstream of these pathways that allow them to control lifespan/ageing e.g. stress resistance, autophagy, reduced translation, enhanced immunity etc…

Cross-talk between pathways.

Dietary restriction, lifespan and ageing

How dietary restriction works in different organisms, what signalling pathways and processes it affects.

Diseases of ageing

What these are e.g. Alzheimers, Huntington's

Overview of 'normal ageing’ associated processes e.g. muscle weakening.

How they can be studied in model organsims and the importance of ageing research for treating these disorders.

Ethics of ageing research

Pros and cons of studying ageing with a goal of extending human lifespan e.g. insurance, health system, social, psychological implications.

Workshop 1: Group discussion of key ageing research paper(s) (small groups).

Workshop 2: Data analysis session (whole class or 2-3 groups).

Workshop 3: Overview of the module in preparation for revision/exam (whole class).

Find out more about BI644

This module is designed to provide students across the university with access to knowledge, skill development and training in the field of entrepreneurship with a special emphasis on developing a business plan in order to exploit identified opportunities. Hence, the module will be of value for students who aspire to establishing their own business and/or introducing innovation through new product, service, process, project or business development in an established organisation. The module complements students' final year projects in Computing, Law, Biosciences, Electronics, Multimedia, and Drama etc.

Find out more about CB612

A synopsis of the curriculum

The module begins by overviewing the diverse mechanisms used by cells to communicate, considering the main modes of cell-cell communication, the major classes of signalling molecules and the receptor types upon which they act. It then focuses on nuclear, G-protein coupled, and enzyme linked receptors covering in molecular detail these receptors and their associated signal transduction pathways.

Introduction:

Principles of Cell Signalling.

Cell Adhesion and Cell Communication (adhesion and gap junctions).

Signalling Molecules: Hormones, neurotransmitters, growth factors.

Receptor Types: Nuclear, G-protein coupled, Ion-channel linked, Enzyme-linked.

Nuclear Receptors:

Cellular location and molecular organisation of receptors. Structure/function/activity relationships. Receptors as sequence-specific DNA binding proteins.

G-Protein Coupled Receptors:

Receptors coupled to heterotrimeric guanine nucleotide binding proteins (G proteins). Composition and classification of G-proteins, their activation and modulation by toxins and disease.

Second Messengers and Protein Phosphorylation (kinases and phosphatases).

Cyclic Nucleotide-Dependent Systems: G proteins in regulation of adenylyl cyclase-cAMP-protein kinase A (PKA) and guanylyl cyclase-cGMP pathways. Physiological roles e.g. in visual transduction and glycogen metabolism.

Inositol lipids in signal transduction: Regulation of phospholipase C. Inositol polyphosphates (e.g. IP3) and diacylglycerol (DAG) in regulation of Ca++-dependent kinases. Roles in specific cellular responses e.g. regulation of protein kinase C.

Interactions of Signalling Pathways:

'Cross-Talk' between different pathways and messenger molecules.

Enzyme Linked Receptors:

Receptor tyrosine kinases (RTKs), e.g. epidermal growth factor receptor (EGF) family and insulin receptor, and their varied roles in cellular metabolism, cell behaviour, development and disease.

Molecular organisation of receptors, autophosphorylation of intracellular domains.

Intracellular signalling pathways: activation of monomeric G-protein Ras, leading to activation of the mitogen activated protein (MAP) kinase cascade.

Integration of signalling components: Role of adapter proteins (e.g. GRB2) and their protein-protein interaction domains (SH2, SH3 etc.) in linking ligand-receptor complexes to intracellular proteins.

Practical: Characterisation of G-protein coupled receptors using a cAMP-linked reporter gene assay.

Find out more about BI602

Cells and subcellular compartments are separated from the external milieu by lipid membranes with protein molecules inserted into the lipid layer. The aim of this module is to develop understanding of both the lipid and protein components of membranes as dynamic structures whose functions are integrated in cellular processes.

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The module aims to develop understanding and analytical skills in virology, based around interactive seminars wherein students will analyse, present, and discuss the relevant research literature. The students will gain experience in scientific design, literature analysis, scientific communication, and the analysis of experimental data.

Find out more about BI620