Th1L04: Amino Acids and Proteins/ Protein Structure and Function (FCs)


Medicine Y1 (Theme 1 | Cells and organelles) Flashcards on Th1L04: Amino Acids and Proteins/ Protein Structure and Function (FCs), created by Emma Allde on 15/08/2016.
Emma Allde
Flashcards by Emma Allde, updated more than 1 year ago
Emma Allde
Created by Emma Allde over 7 years ago

Resource summary

Question Answer
Define glycosylation the reaction in which a carbohydrate, i.e. a glycosyl donor, is attached to a hydroxyl or other functional group of another molecule (a glycosyl acceptor)
Phosphorylation (2 roles) • Cell signal transduction, e.g. phosphorylation of tyr in insulin receptors • Change in activity of enzyme, e.g. phosphorylation of glycogen phosphorylase in response to glucagon
Methylation is vital for what process Gene expression (specifically histones)
Primary structure Sequence of aa in peptide chain
Secondary structure Folding/coiling of peptide chain (usually into an alpha-helix to a beta-pleated sheet
Tertiary structure 3D structure, complete with various folds
Quaternary structure · Folded peptide chains join together · May consist of a number of subunits
Supersecondary structure · Combinations of alpha-helix and beta-sheet form common domains found in protein · 100s exist · Quite common · Certain arrangements frequently found because they are the most energetically stable
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