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Cell Signalling Biology

This major contribution to the field of cell signalling by one of the world's leading experts, Professor Sir Michael Berridge (Cambridge) is now sponsored by the Biochemical Journal's Signal Knowledge Environment ensuring online access is freely available to all.

Cell Signalling Biology provides researchers, teachers and students alike with an outstanding online resource describing the biology of cell signalling.

New updates include extensive additions on membrane and protein trafficking, endocytosis, motor proteins, Rab and Arf signalling, cell differentiation, brain regions, neural circuits and hippocampal rhythms, and disease processes, in particular schizophrenia and insulin resistance.

"A fantastic resource for educators and researchers alike, and for anyone interested in the basics and details of cell signalling pathways. The diagrams are particularly useful as teaching tools, I highly recommend this to anyone engaged in signalling research".
Alex Toker, Harvard Medical School, Boston.

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Watch a special Biochemical Society Centenary interview with Sir Michael Berridge entitled - Eureka Moments: The key that unlocked calcium in which Professor Sir Michael Berridge talks to Professor Robin Irvine about his 'Eureka Moment' in calcium signalling and his passion for trying to find the solution to interesting problems.

Contents

 1 Introduction
The aim of this website is to describe cell signalling within its biological context. There has been an explosion in the characterization of signalling components and pathways. The next major challenge is to understand how cells exploit this large signalling toolkit to assemble the specific signalling pathways they require to communicate with each other.
 2 Cell signalling pathways
Cells use a large number of clearly defined signalling pathways to regulate their activity. This module focusses on the ON mechanisms responsible for transmitting information into the cell.
 3 Ion channels
Ion channels have two main signalling functions: either they can generate second messengers or they can function as effectors by responding to such messengers.
 4 Sensors and effectors
Signalling pathways regulate cellular processes by acting through sensors to stimulate the downstream effectors that are responsible for controlling different cellular processes.
 5 Off mechanisms
Signalling pathways are composed of the ON mechanisms that generate internal signals and the OFF mechanisms that remove these signals as cells recover from stimulation.
 6 Spatial and temporal aspects of signalling
The function and efficiency of cell signalling pathways are very dependent on their organization both in space and time. With regard to spatial organization, signalling components are highly organized with respect to their cellular location and how they transmit information from one region of the cell to another.
 7 Cellular processes
Signalling pathways use different messenger systems acting through specific sensors and effectors to control a great variety of cell types
 8 Development
Development encompasses the programme of events that begins with fertilization and culminates in complex multicellular organisms like ourselves.
 9 Cell cycle and proliferation
Cell proliferation is the process whereby cells reproduce themselves by growing and then dividing into two equal copies. Growth factors employ a range of growth factor signalling pathways to activate cells to enter the cell cycle.
 10 Neuronal signalling
The central nervous system contains approximately one trillion (1012) neurons that are connected to each other to form neural circuits of bewildering complexity.
 11 Cell stress, inflammatory responses and cell death
Cells have intrinsic signalling mechanisms that are capable of sensing various deleterious conditions, both normal and pathological, and respond by mounting a variety of stress responses.
 12 Signalling defects and disease
A large number of diseases are caused by defects in signalling pathways. The nature of these defects and how they are induced varies enormously.
 Index