Entry
Name
Oocyte meiosis - Homo sapiens (human)
Description
During meiosis, a single round of DNA replication is followed by two rounds of chromosome segregation, called meiosis I and meiosis II. At meiosis I, homologous chromosomes recombine and then segregate to opposite poles, while the sister chromatids segregate from each other at meoisis II. In vertebrates, immature oocytes are arrested at the PI (prophase of meiosis I). The resumption of meiosis is stimulated by progesterone, which carries the oocyte through two consecutive M-phases (MI and MII) to a second arrest at MII. The key activity driving meiotic progression is the MPF (maturation-promoting factor), a heterodimer of CDC2 (cell division cycle 2 kinase) and cyclin B. In PI-arrested oocytes, MPF is initially inactive and is activated by the dual-specificity CDC25C phosphatase as the result of new synthesis of Mos induced by progesterone. MPF activation mediates the transition from the PI arrest to MI. The subsequent decrease in MPF levels, required to exit from MI into interkinesis, is induced by a negative feedback loop, where CDC2 brings about the activation of the APC (anaphase-promoting complex), which mediates destruction of cyclin B. Re-activation of MPF for MII requires re-accumulation of high levels of cyclin B as well as the inactivation of the APC by newly synthesized Emi2 and other components of the CSF (cytostatic factor), such as cyclin E or high levels of Mos. CSF antagonizes the ubiquitin ligase activity of the APC, preventing cyclin B destruction and meiotic exit until fertilization occurs. Fertilization triggers a transient increase in cytosolic free Ca2+, which leads to CSF inactivation and cyclin B destruction through the APC. Then eggs are released from MII into the first embryonic cell cycle.
Class
Cellular Processes; Cell growth and death
BRITE hierarchy
Pathway map
Drug
D00066 Progesterone (JP18/USP/INN)
D00327 Fluoxymesterone (JAN/USP/INN)
D00408 Methyltestosterone (JP18/USP/INN)
D00585 Mifepristone (JAN/USAN/INN)
D00949 Hydroxyprogesterone caproate (JAN/USP/INN)
D00950 Levonorgestrel (JAN/USP/INN)
D00951 Medroxyprogesterone acetate (JP18/USP)
D00952 Megestrol acetate (USP)
D00953 Norethindrone acetate (USP)
D00954 Norgestrel (JP18/USP/INN)
D00957 Testosterone cypionate (USP)
D00958 Testosterone enanthate (JP18/USP)
D00959 Testosterone propionate (JP18/USP)
D01159 Gestonorone caproate (JAN/USAN)
D01217 Dydrogesterone (JP18/USP/INN)
D01294 Ethynodiol diacetate (JAN/USP)
D01299 Chlormadinone acetate (JP18/USAN)
D01368 Cyproterone acetate (JAN/USAN)
D01374 Allylestrenol (JAN/INN)
D01534 Dromostanolone propionate (USAN)
D03675 Delmadinone acetate (USAN)
D03799 Dienogest (JAN/USAN/INN)
D03917 Drospirenone (JAN/USP/INN)
D04104 Etonogestrel (USAN/INN)
D04885 Medrogestone (USAN/INN)
D05003 Methynodiol diacetate (USAN)
D05205 Norelgestromin (USP/INN)
D05308 Oxogestone phenpropionate (USAN)
D05679 Quingestanol acetate (USAN)
D05680 Quingestrone (USAN/INN)
D06085 Testosterone ketolaurate (USAN/INN)
D06086 Testosterone phenylacetate (USAN)
D06087 Testosterone undecanoate (USAN)
D06235 Trimegestone (USAN/INN)
D08052 Hydroxyprogesterone (INN)
D08053 Hydroxyprogesterone 17alfa-acetate
D08166 Medroxyprogesterone (INN)
D08281 Nomegestrol acetate (USAN)
D08285 Norethisterone enantate
D08574 Testosterone phenylpropionate
D09687 Ulipristal acetate (JAN/USAN)
D09972 Telapristone acetate (USAN)
D10986 Segesterone acetate (USAN)
D11181 Vilaprisan (JAN/USAN/INN)
Other DBs
Organism
Homo sapiens (human) [GN:
hsa ]
Gene
10393 ANAPC10; anaphase-promoting complex subunit 10 isoform 1 [KO:K03357 ]
10459 MAD2L2; mitotic spindle assembly checkpoint protein MAD2B [KO:K13728 ]
105180390 SPDYE13; speedy/RINGO cell cycle regulator family member E13 [KO:K08694 ]
10734 STAG3; cohesin subunit SA-3 isoform 1 [KO:K13055 ]
119504 ANAPC16; anaphase-promoting complex subunit 16 isoform 1 [KO:K25229 ]
132864 CPEB2; cytoplasmic polyadenylation element-binding protein 2 isoform C [KO:K02602 ]
163688 CALML6; calmodulin-like protein 6 isoform 1 [KO:K02183 ]
22849 CPEB3; cytoplasmic polyadenylation element-binding protein 3 isoform 1 [KO:K02602 ]
23291 FBXW11; F-box/WD repeat-containing protein 11 isoform C [KO:K03362 ]
246184 CDC26; anaphase-promoting complex subunit CDC26 [KO:K03359 ]
25847 ANAPC13; anaphase-promoting complex subunit 13 [KO:K12456 ]
25906 ANAPC15; anaphase-promoting complex subunit 15 isoform b [KO:K25228 ]
26271 FBXO5; F-box only protein 5 isoform a [KO:K10292 ]
27127 SMC1B; structural maintenance of chromosomes protein 1B isoform 1 [KO:K06636 ]
29882 ANAPC2; anaphase-promoting complex subunit 2 [KO:K03349 ]
29945 ANAPC4; anaphase-promoting complex subunit 4 isoform 2 [KO:K03351 ]
3479 IGF1; insulin-like growth factor 1 isoform 3 preproprotein [KO:K05459 ]
3480 IGF1R; insulin-like growth factor 1 receptor isoform 1 precursor [KO:K05087 ] [EC:2.7.10.1 ]
367 AR; androgen receptor isoform 1 [KO:K08557 ]
3708 ITPR1; inositol 1,4,5-trisphosphate-gated calcium channel ITPR1 isoform 4 [KO:K04958 ]
3709 ITPR2; inositol 1,4,5-trisphosphate-gated calcium channel ITPR2 isoform 1 [KO:K04959 ]
3710 ITPR3; inositol 1,4,5-trisphosphate-gated calcium channel ITPR3 [KO:K04960 ]
4085 MAD2L1; mitotic spindle assembly checkpoint protein MAD2A [KO:K02537 ]
51433 ANAPC5; anaphase-promoting complex subunit 5 isoform a [KO:K03352 ]
51434 ANAPC7; anaphase-promoting complex subunit 7 isoform a [KO:K03354 ]
51529 ANAPC11; anaphase-promoting complex subunit 11 isoform 2 [KO:K03358 ]
5241 PGR; progesterone receptor isoform B [KO:K08556 ]
5499 PPP1CA; serine/threonine-protein phosphatase PP1-alpha catalytic subunit isoform 1 [KO:K06269 ] [EC:3.1.3.16 ]
5500 PPP1CB; serine/threonine-protein phosphatase PP1-beta catalytic subunit isoform 1 [KO:K06269 ] [EC:3.1.3.16 ]
5501 PPP1CC; serine/threonine-protein phosphatase PP1-gamma catalytic subunit isoform 1 [KO:K06269 ] [EC:3.1.3.16 ]
5515 PPP2CA; serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform isoform 1 [KO:K04382 ] [EC:3.1.3.16 ]
5516 PPP2CB; serine/threonine-protein phosphatase 2A catalytic subunit beta isoform [KO:K04382 ] [EC:3.1.3.16 ]
5518 PPP2R1A; serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform isoform 1 [KO:K03456 ]
5519 PPP2R1B; serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform isoform a [KO:K03456 ]
5525 PPP2R5A; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform isoform 1 [KO:K11584 ]
5526 PPP2R5B; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit beta isoform [KO:K11584 ]
5527 PPP2R5C; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit gamma isoform isoform a [KO:K11584 ]
5528 PPP2R5D; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform isoform 1 [KO:K11584 ]
5529 PPP2R5E; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit epsilon isoform isoform a [KO:K11584 ]
5530 PPP3CA; protein phosphatase 3 catalytic subunit alpha isoform 1 [KO:K04348 ] [EC:3.1.3.16 ]
5532 PPP3CB; serine/threonine-protein phosphatase 2B catalytic subunit beta isoform isoform b [KO:K04348 ] [EC:3.1.3.16 ]
5533 PPP3CC; serine/threonine-protein phosphatase 2B catalytic subunit gamma isoform isoform 2 [KO:K04348 ] [EC:3.1.3.16 ]
5534 PPP3R1; calcineurin subunit B type 1 [KO:K06268 ]
5535 PPP3R2; calcineurin subunit B type 2 [KO:K06268 ]
5566 PRKACA; cAMP-dependent protein kinase catalytic subunit alpha isoform Calpha1 [KO:K04345 ] [EC:2.7.11.11 ]
5567 PRKACB; cAMP-dependent protein kinase catalytic subunit beta isoform 2 [KO:K04345 ] [EC:2.7.11.11 ]
5604 MAP2K1; dual specificity mitogen-activated protein kinase kinase 1 isoform 1 [KO:K04368 ] [EC:2.7.12.2 ]
643909 SPDYE9; speedy/RINGO cell cycle regulator family member E9 [KO:K08694 ]
64506 CPEB1; cytoplasmic polyadenylation element-binding protein 1 isoform 2 [KO:K02602 ]
64682 ANAPC1; anaphase-promoting complex subunit 1 [KO:K03348 ]
6500 SKP1; S-phase kinase-associated protein 1 isoform b [KO:K03094 ]
699 BUB1; mitotic checkpoint serine/threonine-protein kinase BUB1 isoform 1 [KO:K02178 ] [EC:2.7.11.1 ]
801 CALM1; calmodulin-1 isoform 2 [KO:K02183 ]
80315 CPEB4; cytoplasmic polyadenylation element-binding protein 4 isoform a [KO:K02602 ]
805 CALM2; calmodulin-2 isoform 2 [KO:K02183 ]
808 CALM3; calmodulin-3 isoform 1 [KO:K02183 ]
810 CALML3; calmodulin-like protein 3 [KO:K02183 ]
815 CAMK2A; calcium/calmodulin-dependent protein kinase type II subunit alpha isoform 2 [KO:K04515 ] [EC:2.7.11.17 ]
816 CAMK2B; calcium/calmodulin-dependent protein kinase type II subunit beta isoform 1 [KO:K04515 ] [EC:2.7.11.17 ]
817 CAMK2D; calcium/calmodulin-dependent protein kinase type II subunit delta isoform 3 [KO:K04515 ] [EC:2.7.11.17 ]
818 CAMK2G; calcium/calmodulin-dependent protein kinase type II subunit gamma isoform 7 [KO:K04515 ] [EC:2.7.11.17 ]
8243 SMC1A; structural maintenance of chromosomes protein 1A isoform 1 [KO:K06636 ]
8379 MAD1L1; mitotic spindle assembly checkpoint protein MAD1 isoform a [KO:K06679 ]
8697 CDC23; cell division cycle protein 23 homolog [KO:K03355 ]
8881 CDC16; cell division cycle protein 16 homolog isoform 1 [KO:K03353 ]
891 CCNB1; G2/mitotic-specific cyclin-B1 isoform 1 [KO:K05868 ]
8945 BTRC; F-box/WD repeat-containing protein 1A isoform 1 [KO:K03362 ]
898 CCNE1; G1/S-specific cyclin-E1 isoform 1 [KO:K06626 ]
89869 PLCZ1; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase zeta-1 isoform 1 [KO:K05861 ] [EC:3.1.4.11 ]
9088 PKMYT1; membrane-associated tyrosine- and threonine-specific cdc2-inhibitory kinase isoform 1 [KO:K06633 ] [EC:2.7.11.1 ]
9126 SMC3; structural maintenance of chromosomes protein 3 [KO:K06669 ]
9133 CCNB2; G2/mitotic-specific cyclin-B2 [KO:K21770 ]
91860 CALML4; calmodulin-like protein 4 isoform 1 [KO:K02183 ]
991 CDC20; cell division cycle protein 20 homolog [KO:K03363 ]
996 CDC27; cell division cycle protein 27 homolog isoform 2 [KO:K03350 ]
9985 REC8; meiotic recombination protein REC8 homolog [KO:K13054 ]
Compound
C01245 D-myo-Inositol 1,4,5-trisphosphate
Reference
Authors
Haccard O, Jessus C
Title
Oocyte maturation, Mos and cyclins--a matter of synthesis: two functionally redundant ways to induce meiotic maturation.
Journal
Reference
Authors
Crane R, Gadea B, Littlepage L, Wu H, Ruderman JV
Title
Aurora A, meiosis and mitosis.
Journal
Reference
Authors
Perdiguero E, Nebreda AR
Title
Regulation of Cdc25C activity during the meiotic G2/M transition.
Journal
Reference
Authors
Perry JA, Kornbluth S
Title
Cdc25 and Wee1: analogous opposites?
Journal
Reference
Authors
Jessus C, Ozon R
Title
How does Xenopus oocyte acquire its competence to undergo meiotic maturation?
Journal
Reference
Authors
Revenkova E, Jessberger R
Title
Shaping meiotic prophase chromosomes: cohesins and synaptonemal complex proteins.
Journal
Reference
Authors
Belloc E, Pique M, Mendez R
Title
Sequential waves of polyadenylation and deadenylation define a translation circuit that drives meiotic progression.
Journal
Reference
Authors
Pesin JA, Orr-Weaver TL
Title
Regulation of APC/C activators in mitosis and meiosis.
Journal
Reference
Authors
Tang W, Wu JQ, Guo Y, Hansen DV, Perry JA, Freel CD, Nutt L, Jackson PK, Kornbluth S
Title
Cdc2 and Mos regulate Emi2 stability to promote the meiosis I-meiosis II transition.
Journal
Reference
Authors
Wu JQ, Kornbluth S
Title
Across the meiotic divide - CSF activity in the post-Emi2/XErp1 era.
Journal
Reference
Authors
Schmidt A, Rauh NR, Nigg EA, Mayer TU
Title
Cytostatic factor: an activity that puts the cell cycle on hold.
Journal
Reference
Authors
Vogt E, Kirsch-Volders M, Parry J, Eichenlaub-Ritter U
Title
Spindle formation, chromosome segregation and the spindle checkpoint in mammalian oocytes and susceptibility to meiotic error.
Journal
Reference
Authors
Perry AC, Verlhac MH
Title
Second meiotic arrest and exit in frogs and mice.
Journal
Reference
Authors
Tunquist BJ, Eyers PA, Chen LG, Lewellyn AL, Maller JL
Title
Spindle checkpoint proteins Mad1 and Mad2 are required for cytostatic factor-mediated metaphase arrest.
Journal
Reference
Authors
Hutchins JR, Dikovskaya D, Clarke PR.
Title
Regulation of Cdc2/cyclin B activation in Xenopus egg extracts via inhibitory phosphorylation of Cdc25C phosphatase by Ca(2+)/calmodulin-dependent protein [corrected] kinase II.
Journal
Related pathway
hsa04914 Progesterone-mediated oocyte maturation
KO pathway