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inhibin-A
Function:
- inhibits secretion of FSH
Compartment: secreted
Expression:
- secreted by ovarian granulosa cells in response to stimulation by FSH
- also secreted by placenta
General
inhibin
Properties
COMPARTMENT: extracellular compartment
SECRETED-BY: granulosa cell
WITHIN: ovary
SUBUNITS: inhibin alpha chain
MOTIF: signal sequence {1-18}
peptide motif {61-62}
N-glycosylation site {N146}
peptide motif {232-233}
cysteine residue {C262}
MODIFICATION: cysteine residue {C328}
N-glycosylation site {N268}
cysteine residue {C291}
MODIFICATION: cysteine residue {C363}
cysteine residue {C295}
MODIFICATION: cysteine residue {C365}
N-glycosylation site {N302}
cysteine residue {C327}
MODIFICATION: cysteine residue {C-INTERCHAIN}
cysteine residue {C328}
MODIFICATION: cysteine residue {C262}
cysteine residue {C363}
MODIFICATION: cysteine residue {C291}
cysteine residue {C365}
MODIFICATION: cysteine residue {C295}
inhibin beta A chain
MOTIF: signal sequence {1-20}
N-glycosylation site {N165}
cysteine residue {C314}
MODIFICATION: cysteine residue {C322}
cysteine residue {C321}
MODIFICATION: cysteine residue {C391}
cysteine residue {C322}
MODIFICATION: cysteine residue {C314}
cysteine residue {C350}
MODIFICATION: cysteine residue {C423}
cysteine residue {C354}
MODIFICATION: cysteine residue {C425}
cysteine residue {C390}
MODIFICATION: cysteine residue {C-INTERCHAIN}
cysteine residue {C391}
MODIFICATION: cysteine residue {C321}
cysteine residue {C423}
MODIFICATION: cysteine residue {C350}
cysteine residue {C425}
MODIFICATION: cysteine residue {C354}
References
Medical Knowledge Self Assessment Program (MKSAP) 11, American
College of Physicians, Philadelphia 1998
Components
inhibin alpha chain (INHA)
inhibin beta A chain; activin beta-A chain; erythroid differentiation protein; EDF (INHBA)