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
Ortholog table
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
3479 IGF1; insulin like growth factor 1 [KO:K05459 ]
64506 CPEB1; cytoplasmic polyadenylation element binding protein 1 [KO:K02602 ]
132864 CPEB2; cytoplasmic polyadenylation element binding protein 2 [KO:K02602 ]
22849 CPEB3; cytoplasmic polyadenylation element binding protein 3 [KO:K02602 ]
80315 CPEB4; cytoplasmic polyadenylation element binding protein 4 [KO:K02602 ]
9088 PKMYT1; protein kinase, membrane associated tyrosine/threonine 1 [KO:K06633 ] [EC:2.7.11.1 ]
7534 YWHAZ; tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta [KO:K16197 ]
7529 YWHAB; tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein beta [KO:K16197 ]
10971 YWHAQ; tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein theta [KO:K16197 ]
7531 YWHAE; tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein epsilon [KO:K06630 ]
7533 YWHAH; tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein eta [KO:K16198 ]
7532 YWHAG; tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein gamma [KO:K16198 ]
245711 SPDYA; speedy/RINGO cell cycle regulator family member A [KO:K08694 ]
387778 SPDYC; speedy/RINGO cell cycle regulator family member C [KO:K08694 ]
100310812 SPDYE2B; speedy/RINGO cell cycle regulator family member E2B [KO:K08694 ]
100505767 SPDYE18; speedy/RINGO cell cycle regulator family member E18 [KO:K08694 ]
100996746 SPDYE11; speedy/RINGO cell cycle regulator family member E11 [KO:K08694 ]
102723555 SPDYE16; speedy/RINGO cell cycle regulator family member E16 [KO:K08694 ]
102723849 SPDYE17; speedy/RINGO cell cycle regulator family member E17 [KO:K08694 ]
285955 SPDYE1; speedy/RINGO cell cycle regulator family member E1 [KO:K08694 ]
388333 SPDYE4; speedy/RINGO cell cycle regulator family member E4 [KO:K08694 ]
441272 SPDYE3; speedy/RINGO cell cycle regulator family member E3 [KO:K08694 ]
441273 SPDYE2; speedy/RINGO cell cycle regulator family member E2 [KO:K08694 ]
442590 SPDYE5; speedy/RINGO cell cycle regulator family member E5 [KO:K08694 ]
729597 SPDYE6; speedy/RINGO cell cycle regulator family member E6 [KO:K08694 ]
105180391 SPDYE15; speedy/RINGO cell cycle regulator family member E15 [KO:K08694 ]
100101268 SPDYE12; speedy/RINGO cell cycle regulator family member E12 [KO:K08694 ]
643862 SPDYE10; speedy/RINGO cell cycle regulator family member E10 [KO:K08694 ]
643909 SPDYE9; speedy/RINGO cell cycle regulator family member E9 [KO:K08694 ]
728524 SPDYE8; speedy/RINGO cell cycle regulator family member E8 [KO:K08694 ]
105180390 SPDYE13; speedy/RINGO cell cycle regulator family member E13 [KO:K08694 ]
641776 SPDYE14; speedy/RINGO cell cycle regulator family member E14 [KO:K08694 ]
442572 SPDYE21; speedy/RINGO cell cycle regulator family member E21 [KO:K08694 ]
6500 SKP1; S-phase kinase associated protein 1 [KO:K03094 ]
8945 BTRC; beta-transducin repeat containing E3 ubiquitin protein ligase [KO:K03362 ]
23291 FBXW11; F-box and WD repeat domain containing 11 [KO:K03362 ]
64682 ANAPC1; anaphase promoting complex subunit 1 [KO:K03348 ]
29882 ANAPC2; anaphase promoting complex subunit 2 [KO:K03349 ]
996 CDC27; cell division cycle 27 [KO:K03350 ]
29945 ANAPC4; anaphase promoting complex subunit 4 [KO:K03351 ]
51433 ANAPC5; anaphase promoting complex subunit 5 [KO:K03352 ]
51434 ANAPC7; anaphase promoting complex subunit 7 [KO:K03354 ]
10393 ANAPC10; anaphase promoting complex subunit 10 [KO:K03357 ]
51529 ANAPC11; anaphase promoting complex subunit 11 [KO:K03358 ]
25847 ANAPC13; anaphase promoting complex subunit 13 [KO:K12456 ]
25906 ANAPC15; anaphase promoting complex subunit 15 [KO:K25228 ]
119504 ANAPC16; anaphase promoting complex subunit 16 [KO:K25229 ]
991 CDC20; cell division cycle 20 [KO:K03363 ]
9232 PTTG1; PTTG1 regulator of sister chromatid separation, securin [KO:K06635 ]
10744 PTTG2; pituitary tumor-transforming 2 [KO:K06635 ]
9985 REC8; REC8 meiotic recombination protein [KO:K13054 ]
10734 STAG3; STAG3 cohesin complex component [KO:K13055 ]
8243 SMC1A; structural maintenance of chromosomes 1A [KO:K06636 ]
27127 SMC1B; structural maintenance of chromosomes 1B [KO:K06636 ]
9126 SMC3; structural maintenance of chromosomes 3 [KO:K06669 ]
4085 MAD2L1; mitotic arrest deficient 2 like 1 [KO:K02537 ]
10459 MAD2L2; mitotic arrest deficient 2 like 2 [KO:K13728 ]
8379 MAD1L1; mitotic arrest deficient 1 like 1 [KO:K06679 ]
5526 PPP2R5B; protein phosphatase 2 regulatory subunit B'beta [KO:K11584 ]
5527 PPP2R5C; protein phosphatase 2 regulatory subunit B'gamma [KO:K11584 ]
5528 PPP2R5D; protein phosphatase 2 regulatory subunit B'delta [KO:K11584 ]
5529 PPP2R5E; protein phosphatase 2 regulatory subunit B'epsilon [KO:K11584 ]
5525 PPP2R5A; protein phosphatase 2 regulatory subunit B'alpha [KO:K11584 ]
5519 PPP2R1B; protein phosphatase 2 scaffold subunit Abeta [KO:K03456 ]
5518 PPP2R1A; protein phosphatase 2 scaffold subunit Aalpha [KO:K03456 ]
3708 ITPR1; inositol 1,4,5-trisphosphate receptor type 1 [KO:K04958 ]
3709 ITPR2; inositol 1,4,5-trisphosphate receptor type 2 [KO:K04959 ]
3710 ITPR3; inositol 1,4,5-trisphosphate receptor type 3 [KO:K04960 ]
5534 PPP3R1; protein phosphatase 3 regulatory subunit B, alpha [KO:K06268 ]
5535 PPP3R2; protein phosphatase 3 regulatory subunit B, beta [KO:K06268 ]
815 CAMK2A; calcium/calmodulin dependent protein kinase II alpha [KO:K04515 ] [EC:2.7.11.17 ]
817 CAMK2D; calcium/calmodulin dependent protein kinase II delta [KO:K04515 ] [EC:2.7.11.17 ]
816 CAMK2B; calcium/calmodulin dependent protein kinase II beta [KO:K04515 ] [EC:2.7.11.17 ]
818 CAMK2G; calcium/calmodulin dependent protein kinase II gamma [KO:K04515 ] [EC:2.7.11.17 ]
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
LinkDB
All DBs