Which of the following polypeptides CANNOT be phosphorylated? O a. -LIYLIA- O b. O C. O d. O e. -ASILD- -ILTALD- -DLTYLA- -NDLALP-
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- Match the subfamilies of HSPGS withe their examples v syndecans and CD44V3 A. GPI-linked proteoglycans v glypicans B. Membrane-spanning proteoglycans v perlecan and collagen XVII C. Secreted ECM proteoglycans v agrin -Lysozyme cleaves between NAG and NAM residues in bacterial cell walls and is, therefore, classified as a(an) O A. salt bridge, oxidoreductase O B. peptide bond; hydrolase OC. glycosidic linkage; oxidoreductase O D. glycosidic linkage, hydrolase O E. peptide bond; transferaseWhich of the following is incorrect? a. Protease inhibitors are small proteins that pose as protease substrates but are not completely hydrolyzed b. Trypsin is the zymogen of trypsinogen Oc. Proteases are synthesized in the form of inactive precursors called zymogens Od. Activation of zymogens requires removal of peptides
- Define the following terms:a. proproteinb. preproproteinc. disulfide exchanged. proline hydroxylatione. proteolytic cleavageDefine the following terms:a. transsulfuration pathwayb. cystathioninec. homocysteined. PAPSe. S-adenosylmethionineWhat amino acid residue of phosphoglucomutase is able to transfer the phosphoryl group to glucose 1-phosphate? A. phosphorylated serine residue B. acetylated lysine residue C. phosphorylated tyrosine residue D. phosphorylated lysine residue E. acetylated serine residue
- Define the following terms: a. asparagine-linked oligosaccharide b. mucin-type oligosaccharide c. Na+-K+-ATPase d. major histocompatibility antigens e. Hurler’s syndromeDerivatives of which amino acid are critical for crosslinking of keratin fibers? Select one: a. Gly b. cystine c. hydroxyproline d. lysine e. ProWhich of the following 1-C unit:carrier pairing is/are correct? a.biotin:C02 b.THF:-CH2- c.THF:CHO d.S-adenosylmethionine:-CH3