O-sialoglycoprotein endopeptidase

O-sialoglycoprotein endopeptidase (EC 3.4.24.57, glycoprotease, glycophorin A proteinase, glycoproteinase, sialoglycoprotease, sialoglycoproteinase, "OSGE") is an enzyme. This enzyme catalyses the following chemical reaction

Hydrolysis of O-sialoglycoproteins; cleaves -Arg-Asp- bond in glycophorin A. Does not cleave unglycosylated proteins, desialylated glycoproteins or glycoproteins that are only N-glycosylated

This enzyme is secreted by the bacterium Pasteurella haemolytica.

References

Abdullah KM, Lo RY, Mellors A (September 1991). "Cloning, nucleotide sequence, and expression of the Pasteurella haemolytica A1 glycoprotease gene". Journal of Bacteriology. 173 (18): 5597–603. doi:10.1128/jb.173.18.5597-5603.1991. PMC 208286. PMID 1885539.
Abdullah KM, Udoh EA, Shewen PE, Mellors A (January 1992). "A neutral glycoprotease of Pasteurella haemolytica A1 specifically cleaves O-sialoglycoproteins". Infection and Immunity. 60 (1): 56–62. PMC 257502. PMID 1729196.
Sutherland DR, Abdullah KM, Cyopick P, Mellors A (March 1992). "Cleavage of the cell-surface O-sialoglycoproteins CD34, CD43, CD44, and CD45 by a novel glycoprotease from Pasteurella haemolytica". Journal of Immunology. 148 (5): 1458–64. PMID 1371528.

External links

O-sialoglycoprotein+endopeptidase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

v t e Proteases: metalloendopeptidases (EC 3.4.24)
ADAM proteins	Alpha secretases ADAM9 ADAM10 ADAM17 ADAM19 ADAM2 ADAM7 ADAM8 ADAM11 ADAM12 ADAM15 ADAM18 ADAM22 ADAM23 ADAM28 ADAM33 ADAMTS1 ADAMTS2 ADAMTS3 ADAMTS4 ADAMTS5 ADAMTS8 ADAMTS9 ADAMTS10 ADAMTS12 ADAMTS13
Matrix metalloproteinases	Collagenases MMP1 MMP8 Gelatinases MMP2 MMP9 MMP3 MMP7 MMP10 MMP11 MMP12 MMP13 MMP14 MMP15 MMP16 MMP17 MMP19 MMP20 MMP21 MMP23A MMP23B MMP24 MMP25 MMP26 MMP27 MMP28
Other	Neprilysin Procollagen peptidase Thermolysin Pregnancy-associated plasma protein A Bone morphogenetic protein 1 Lysostaphin Insulin-degrading enzyme ZMPSTE24

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)

Portal:

Biology

Category:

EC 3.4.24