Entry |
|
Name |
Progesterone-mediated oocyte maturation - Miniopterus natalensis
|
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
|
Pathway map |
mna04914 | Progesterone-mediated oocyte maturation |

|
Other DBs |
|
Organism |
Miniopterus natalensis [GN: mna]
|
Gene |
107526728 | PIK3R3; phosphatidylinositol 3-kinase regulatory subunit gamma [KO:K02649] |
107529317 | PIK3R1; phosphatidylinositol 3-kinase regulatory subunit alpha isoform X1 [KO:K02649] |
107535325 | PIK3R2; phosphatidylinositol 3-kinase regulatory subunit beta [KO:K02649] |
107532628 | PIK3CB; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoform isoform X1 [KO:K00922] [EC:2.7.1.153] |
107538463 | PIK3CD; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform [KO:K00922] [EC:2.7.1.153] |
107541106 | PIK3CA; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform [KO:K00922] [EC:2.7.1.153] |
107545320 | GNAI3; guanine nucleotide-binding protein G(k) subunit alpha [KO:K04630] |
107540752 | GNAI1; guanine nucleotide-binding protein G(i) subunit alpha-1 [KO:K04630] |
107545079 | GNAI2; guanine nucleotide-binding protein G(i) subunit alpha-2 [KO:K04630] |
107539248 | CPEB1; cytoplasmic polyadenylation element-binding protein 1 isoform X1 [KO:K02602] |
107533909 | CPEB4; cytoplasmic polyadenylation element-binding protein 4 isoform X1 [KO:K02602] |
107530440 | CPEB2; cytoplasmic polyadenylation element-binding protein 2 isoform X1 [KO:K02602] |
107543254 | CPEB3; cytoplasmic polyadenylation element-binding protein 3 [KO:K02602] |
107535809 | PKMYT1; membrane-associated tyrosine- and threonine-specific cdc2-inhibitory kinase [KO:K06633] [EC:2.7.11.1] |
107537043 | MAD1L1; mitotic spindle assembly checkpoint protein MAD1 [KO:K06679] |
107528423 | MAD2L1; mitotic spindle assembly checkpoint protein MAD2A [KO:K02537] |
107540988 | MAD2L2; mitotic spindle assembly checkpoint protein MAD2B [KO:K13728] |
107530322 | CDC27; cell division cycle protein 27 homolog isoform X1 [KO:K03350] |
107541233 | ANAPC4; anaphase-promoting complex subunit 4 isoform X1 [KO:K03351] |
107529590 | ANAPC5; anaphase-promoting complex subunit 5 isoform X1 [KO:K03352] |
107523893 | CDC16; cell division cycle protein 16 homolog isoform X1 [KO:K03353] |
107529596 | ANAPC7; anaphase-promoting complex subunit 7 isoform X1 [KO:K03354] |
107530120 | CDC23; cell division cycle protein 23 homolog isoform X1 [KO:K03355] |
107532521 | ANAPC10; anaphase-promoting complex subunit 10 isoform X1 [KO:K03357] |
107535457 | CDC26; anaphase-promoting complex subunit CDC26 isoform X1 [KO:K03359] |
|
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 |
|