Biology:O-sialoglycoprotein endopeptidase

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O-sialoglycoprotein endopeptidase
Identifiers
EC number3.4.24.57
CAS number129430-53-1
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

O-sialoglycoprotein endopeptidase (EC 3.4.24.57, glycoprotease, glycophorin A proteinase, glycoproteinase, sialoglycoprotease, sialoglycoproteinase, "OSGE") is an enzyme.[1][2][3] This enzyme catalyses the following chemical reaction

Hydrolysis of O-sialoglycoproteins; cleaves -Arg31-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

  1. "Cloning, nucleotide sequence, and expression of the Pasteurella haemolytica A1 glycoprotease gene". Journal of Bacteriology 173 (18): 5597–603. September 1991. doi:10.1128/jb.173.18.5597-5603.1991. PMID 1885539. 
  2. "A neutral glycoprotease of Pasteurella haemolytica A1 specifically cleaves O-sialoglycoproteins". Infection and Immunity 60 (1): 56–62. January 1992. PMID 1729196. 
  3. "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. March 1992. PMID 1371528. 

External links