Entry
Name
Progesterone-mediated oocyte maturation - Oryctolagus cuniculus (rabbit)
Description
Xenopus oocytes are naturally arrested at G2 of meiosis I. Exposure to either insulin/IGF-1 or the steroid hormone progesterone breaks this arrest and induces resumption of the two meiotic division cycles and maturation of the oocyte into a mature, fertilizable egg. This process is termed oocyte maturation. The transition is accompanied by an increase in maturation promoting factor (MPF or Cdc2/cyclin B) which precedes germinal vesicle breakdown (GVBD). Most reports point towards the Mos-MEK1-ERK2 pathway [where ERK is an extracellular signal-related protein kinase, MEK is a MAPK/ERK kinase and Mos is a p42(MAPK) activator] and the polo-like kinase/CDC25 pathway as responsible for the activation of MPF in meiosis, most likely triggered by a decrease in cAMP.
Class
Organismal Systems; Endocrine system
BRITE hierarchy
Pathway map
ocu04914 Progesterone-mediated oocyte maturation
Ortholog table
Other DBs
Organism
Oryctolagus cuniculus (rabbit) [GN:
ocu ]
Gene
100338391 guanine nucleotide-binding protein G(i) subunit alpha-1 [KO:K04630 ]
100339066 guanine nucleotide-binding protein G(i) subunit alpha-2 [KO:K04630 ]
100341373 cytoplasmic polyadenylation element-binding protein 3 isoform X3 [KO:K02602 ]
100341906 membrane-associated tyrosine- and threonine-specific cdc2-inhibitory kinase isoform X2 [KO:K06633 ] [EC:2.7.11.1 ]
100343198 cytoplasmic polyadenylation element-binding protein 4 isoform X1 [KO:K02602 ]
100345250 phosphatidylinositol 3-kinase regulatory subunit gamma isoform X1 [KO:K02649 ]
100348663 phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform isoform X1 [KO:K00922 ] [EC:2.7.1.153 ]
100351062 cytoplasmic polyadenylation element-binding protein 2 isoform X1 [KO:K02602 ]
100357841 phosphatidylinositol 3-kinase regulatory subunit alpha isoform X1 [KO:K02649 ]
100358916 cytoplasmic polyadenylation element-binding protein 1 isoform X9 [KO:K02602 ]
100359147 guanine nucleotide-binding protein G(i) subunit alpha-3 [KO:K04630 ]
103347105 uncharacterized protein LOC103347105
127486895 LOW QUALITY PROTEIN: anaphase-promoting complex subunit 2-like [KO:K03349 ]
127489461 LOW QUALITY PROTEIN: dual specificity mitogen-activated protein kinase kinase 1-like [KO:K04368 ] [EC:2.7.12.2 ]
Compound
C05981 Phosphatidylinositol-3,4,5-trisphosphate
C11554 1-Phosphatidyl-1D-myo-inositol 3,4-bisphosphate
Reference
Authors
Schmitt A, Nebreda AR.
Title
Signalling pathways in oocyte meiotic maturation.
Journal
J Cell Sci 115:2457-9 (2002)
Reference
Authors
Cato AC, Nestl A, Mink S.
Title
Rapid actions of steroid receptors in cellular signaling pathways.
Journal
Reference
Authors
Maller JL, Schwab MS, Roberts BT, Gross SD, Taieb FE, Tunquist BJ.
Title
The pathway of MAP kinase mediation of CSF arrest in Xenopus oocytes.
Journal
Reference
Authors
Nebreda AR, Ferby I.
Title
Regulation of the meiotic cell cycle in oocytes.
Journal
Reference
Authors
Ferrell JE Jr.
Title
Xenopus oocyte maturation: new lessons from a good egg.
Journal
Reference
Authors
Andersen CB, Sakaue H, Nedachi T, Kovacina KS, Clayberger C, Conti M, Roth RA.
Title
Protein kinase B/Akt is essential for the insulin- but not progesterone-stimulated resumption of meiosis in Xenopus oocytes.
Journal
Reference
Authors
Duckworth BC, Weaver JS, Ruderman JV.
Title
G2 arrest in Xenopus oocytes depends on phosphorylation of cdc25 by protein kinase A.
Journal
Reference
Authors
Abrieu A, Doree M, Fisher D.
Title
The interplay between cyclin-B-Cdc2 kinase (MPF) and MAP kinase during maturation of oocytes.
Journal
J Cell Sci 114:257-67 (2001)
Related pathway
KO pathway
LinkDB
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