MCDB 310 Study Guide - Midterm Guide: Anaphylaxis, Membrane Lipids, Tyrosine

• School: U of M
• Department: Molecular, Cellular and Developmental Biology
• Course: MCDB 310
• Professor: Dr.Randy Stockbridge

Document Summary

Backbones are unbranched c chains with single bonds. Can be open-chain (have carbonyl carbon) or cyclic (5 c or more: ketohexoses cyclic form= 5 membered-ring= furanose. Oligosaccharides- short chain of <20 monosaccharides joined with glycosidic linkages. Indicated by double-headed arrow: name 2 cs in glycosidic linkage in parenthesis, joined by an arrow, na(cid:373)e se(cid:272)o(cid:374)d (cid:396)esidue a(cid:374)d e(cid:374)d (cid:449)ith (cid:862)ose(cid:863, ex: beta-o-galactopyranoseyl- (1 4)-beta-o-glucopyranose or gal beta(1 4)glc. Heteropolysaccharides: many kinds of mono present; extracellular support: peptidoglycans: bacterial cell wall (gram positive or negative= differ in peptide cross-link) Alternating n-acetylglucosamine and n-acetylmuramic acid in beta 1 4 linkages: each chain is a polymer of a disaccharide, each n-acetylmuramic acid is covalently bonded to a tetrapeptide that is covalently linked to adjacent chain, glycosaminoglycans: extracellular matrix. Glycoside= general name for any molecule with glycosidic linkage between a sugar molecule and another functional g(cid:396)oup (cid:894)(cid:862)side(cid:863)(cid:895) Lectins= carb-binding proteins with high specificity and affinity.