Literature summary extracted from

Schaller, J.; Akiyama, K.; Tsuda, R.; Hara, M.; Marti, T.; Rickli, E.E.
Isolation, characterization and amino-acid sequence of gamma-seminoprotein, a glycoprotein from human seminal plasma (1987), Eur. J. Biochem., 170, 111-120.

Inhibitors

EC Number	Inhibitors	Comment	Organism	Structure
3.4.21.77	diisopropylfluorophosphate	-	Homo sapiens
3.4.21.77	Hg2+	-	Homo sapiens
3.4.21.77	PMSF	-	Homo sapiens
3.4.21.77	Zn2+	-	Homo sapiens

Molecular Weight [Da]

EC Number	Molecular Weight [Da]	Molecular Weight Maximum [Da]	Comment	Organism
3.4.21.77	26080	-	calculation from amino acid sequence	Homo sapiens

Organism

EC Number	Organism	UniProt	Comment	Textmining
3.4.21.77	Homo sapiens	-	-	-

Posttranslational Modification

EC Number	Posttranslational Modification	Comment	Organism
3.4.21.77	glycoprotein	a single N-linked carbohydrate side chain is attached to Asn45	Homo sapiens
3.4.21.77	glycoprotein	complex structure of the oligosaccharide	Homo sapiens

Purification (Commentary)

EC Number	Purification (Comment)	Organism
3.4.21.77	-	Homo sapiens

Reaction

EC Number	Reaction	Comment	Organism	Reaction ID
3.4.21.77	Preferential cleavage: -Tyr-/-	participation of His41, Asp96 and Ser189 in the active site	Homo sapiens	a

Source Tissue

EC Number	Source Tissue	Comment	Organism	Textmining
3.4.21.77	seminal plasma	-	Homo sapiens	-

Substrates and Products (Substrate)

EC Number	Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
3.4.21.77	N,N-dimethylated casein + H2O	-	Homo sapiens	?	-	?

pH Optimum

EC Number	pH Optimum Minimum	pH Optimum Maximum	Comment	Organism
3.4.21.77	8	-	substrate N,N-dimethylated casein	Homo sapiens

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Release 2023.1 (January 2023)