Flashcards
Sugars
Cards in this deck (18)
- 1EnantiomersMirror images
- 2Diastereomershave unique names (glucose, galactose, manose)
- 3Anomers(stereoisomers) with asymmetric center at C1
- 4Sugar AlcoholHas OH on Carbon 1
- 5Sugar AcidC1 or C6 is oxidized
- 6Amino Sugaramino group substituted for Hydroxyl. ex glucosamine, Sialic acid
- 7Ribose vs. DeoxyriboseRNA vs. DNA, presence of hydroxyl on the 2' carbon
- 8Glycogen vs. AmylopectinGlycogen - soluble, easily dissolved, highly branched (animals)
amylopectin - insoluble, heating or cooking, long chains fewer branches (plants)
- 9Glycogenglucose storage, α(1->4) linkage, many
α(1->6) linkages
- 10Amylopectinglucose storage in plants, α(1->4) linkage, some
α(1->6) linkages
- 11Cellulosemajor constituent of plant cell walls, beta(1->4) linkages. Every glucose flipped over, forms microfibrils
- 12O-linked oligosaccharideslink to protein visa glyosidic bond on serine or threonine OH. Play a roll in recognition, interaction, and enzyme regulation. Alternates with phosphorylation
- 13N-linked oligosaccharidesLinked to protein via Asparagine in specific sequence (Asn-X-Ser/Thr).
Tend to be complex and branched, secretory.
- 14Glycosaminoglycans (GAGs)Linear polymers of repeating disaccharides. Usually modified, negatively charged. ex. Hyaluronate, Heparin
- 15ProteoglycansProteins that have GAGs covalently linked to serine/ threonine. Synthesized by adding sugars to core protein (in the Golgi). Sometimes found in extracelleular matrix. ex. Versican, Serglycin
- 16LectinsGlycoproteins that recognize and bind to specific oligosaccharides. (sugar-binding proteins). A factor in:
cell-cell recognition, cell adhesion to extracellular matrix, cell interaction with chemokines and GF, disease-causing microorganism recognition, inflammation control - 17C-type lectinscontain C++ to facilitate carbohydrate bonding.
- 18Selectinscell-cell recognition in mammalian cell membranes. Similar to C-lectins.
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- Kindergarten Human Structure Function Flashcards on Sugars, created by Jackson Thompson on 07/09/2022.
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- Jackson Thompson
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