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BIOLOGY 2B03 (285)
Kim Dej (39)
Lecture 6

Lecture 6 Summary

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Department
Biology
Course
BIOLOGY 2B03
Professor
Kim Dej
Semester
Fall

Description
Lecture 6Summary Signal transductionprocess of converting extracellular signals into a cellular response by interpreting the signalExtracellular signal moleculesproduced by signaling cellsInduce a specific response changes in metabolism growth differentiation shape movementand gene transcription in target cells that have a receptor for the ligand Fast responsechanges in enzyme activation Slow responsechanges in gene transcriptionSignalling cellssource of signal Goes and binds to receptors on target cellsligandreceptor specificity and affinity determined by molecular complementarity Ligand signaling molecule binds to receptorinduces conformational changeinitiates a cascade of reactionsinduces a cellular responseleads to signal transduction pathwaySTPSignal Transduction pathway1 Signal synthesis 2 Signal Release
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