Entry
Name
Progesterone-mediated oocyte maturation - Mirounga leonina (Southern elephant seal)
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
mlx04914 Progesterone-mediated oocyte maturation
Ortholog table
Other DBs
Organism
Mirounga leonina (Southern elephant seal) [GN:
mlx ]
Gene
118016863 PIK3R1; phosphatidylinositol 3-kinase regulatory subunit alpha isoform X1 [KO:K02649 ]
118019468 PIK3R3; phosphatidylinositol 3-kinase regulatory subunit gamma [KO:K02649 ]
118006042 PIK3R2; phosphatidylinositol 3-kinase regulatory subunit beta [KO:K02649 ]
118004424 PIK3CB; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoform [KO:K00922 ] [EC:2.7.1.153 ]
118020028 PIK3CD; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform isoform X1 [KO:K00922 ] [EC:2.7.1.153 ]
118006556 PIK3CA; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform [KO:K00922 ] [EC:2.7.1.153 ]
118019030 GNAI3; guanine nucleotide-binding protein G(i) subunit alpha [KO:K04630 ]
118005775 GNAI2; guanine nucleotide-binding protein G(i) subunit alpha-2 [KO:K04630 ]
118020679 GNAI1; guanine nucleotide-binding protein G(i) subunit alpha-1 [KO:K04630 ]
118023095 CPEB1; cytoplasmic polyadenylation element-binding protein 1 isoform X1 [KO:K02602 ]
118023712 CPEB3; cytoplasmic polyadenylation element-binding protein 3 isoform X1 [KO:K02602 ]
118016905 CPEB4; cytoplasmic polyadenylation element-binding protein 4 isoform X1 [KO:K02602 ]
118010699 CPEB2; cytoplasmic polyadenylation element-binding protein 2 isoform X1 [KO:K02602 ]
118014942 LOW QUALITY PROTEIN: heat shock protein HSP 90-beta-like [KO:K04079 ]
118021743 PKMYT1; membrane-associated tyrosine- and threonine-specific cdc2-inhibitory kinase isoform X1 [KO:K06633 ] [EC:2.7.11.1 ]
118002147 LOW QUALITY PROTEIN: G2/mitotic-specific cyclin-B1-like [KO:K05868 ]
117999286 MAD1L1; mitotic spindle assembly checkpoint protein MAD1 isoform X1 [KO:K06679 ]
118000543 mitotic spindle assembly checkpoint protein MAD2A-like isoform X1 [KO:K02537 ]
118019231 mitotic spindle assembly checkpoint protein MAD2A isoform X1 [KO:K02537 ]
118019243 mitotic spindle assembly checkpoint protein MAD2A isoform X1 [KO:K02537 ]
118013863 mitotic spindle assembly checkpoint protein MAD2A-like [KO:K02537 ]
118014011 mitotic spindle assembly checkpoint protein MAD2A-like [KO:K02537 ]
118020004 MAD2L2; mitotic spindle assembly checkpoint protein MAD2B isoform X1 [KO:K13728 ]
118007847 ANAPC1; anaphase-promoting complex subunit 1 isoform X1 [KO:K03348 ]
118017491 ANAPC2; anaphase-promoting complex subunit 2 isoform X1 [KO:K03349 ]
118027181 CDC27; cell division cycle protein 27 homolog isoform X1 [KO:K03350 ]
118018444 ANAPC5; anaphase-promoting complex subunit 5 isoform X1 [KO:K03352 ]
118009208 CDC16; cell division cycle protein 16 homolog isoform X1 [KO:K03353 ]
118022281 ANAPC10; anaphase-promoting complex subunit 10 isoform X1 [KO:K03357 ]
117999502 LOW QUALITY PROTEIN: anaphase-promoting complex subunit 13-like [KO:K12456 ]
118003900 ANAPC15; anaphase-promoting complex subunit 15 isoform X1 [KO:K25228 ]
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
All DBs