Entry
Name
Oocyte meiosis - Oncorhynchus gorbuscha (pink salmon)
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
Other DBs
Organism
Oncorhynchus gorbuscha (pink salmon) [GN:
ogo ]
Gene
123996843 cytoplasmic polyadenylation element-binding protein 2-like isoform X1 [KO:K02602 ]
124018109 cpeb1b; cytoplasmic polyadenylation element-binding protein 1 isoform X1 [KO:K02602 ]
124040143 cpeb1a; cytoplasmic polyadenylation element-binding protein 1a isoform X1 [KO:K02602 ]
124010853 cytoplasmic polyadenylation element-binding protein 4-like isoform X1 [KO:K02602 ]
124041413 LOW QUALITY PROTEIN: cytoplasmic polyadenylation element-binding protein 3-like [KO:K02602 ]
123998709 cytoplasmic polyadenylation element-binding protein 4-like isoform X1 [KO:K02602 ]
124014213 cytoplasmic polyadenylation element-binding protein 4-like isoform X1 [KO:K02602 ]
124037834 cytoplasmic polyadenylation element-binding protein 2-like isoform X1 [KO:K02602 ]
124038137 cpeb3; LOW QUALITY PROTEIN: cytoplasmic polyadenylation element-binding protein 3 [KO:K02602 ]
124037367 map2k1; LOW QUALITY PROTEIN: dual specificity mitogen-activated protein kinase kinase 1 [KO:K04368 ] [EC:2.7.12.2 ]
124037445 LOW QUALITY PROTEIN: dual specificity mitogen-activated protein kinase kinase 1-like [KO:K04368 ] [EC:2.7.12.2 ]
124048497 pkmyt1; LOW QUALITY PROTEIN: membrane-associated tyrosine- and threonine-specific cdc2-inhibitory kinase [KO:K06633 ] [EC:2.7.11.1 ]
124013950 serine/threonine-protein phosphatase PP1-beta catalytic subunit-like isoform X1 [KO:K06269 ] [EC:3.1.3.16 ]
123993890 cyclin N-terminal domain-containing protein 2 isoform X1 [KO:K21770 ]
123993303 fbxw11a; F-box and WD repeat domain-containing 11-A isoform X1 [KO:K03362 ]
124010761 F-box and WD repeat domain-containing 11-B isoform X1 [KO:K03362 ]
124038324 LOW QUALITY PROTEIN: anaphase-promoting complex subunit 1-like [KO:K03348 ]
124048986 anapc2; anaphase-promoting complex subunit 2 isoform X1 [KO:K03349 ]
123999378 cdc27; cell division cycle protein 27 homolog isoform X1 [KO:K03350 ]
123997078 anapc4; anaphase-promoting complex subunit 4 isoform X1 [KO:K03351 ]
124008444 anapc10; anaphase-promoting complex subunit 10 isoform X1 [KO:K03357 ]
123998727 anapc13; anaphase-promoting complex subunit 13 isoform X1 [KO:K12456 ]
123998032 meiotic recombination protein REC8 homolog isoform X1 [KO:K13054 ]
124039154 rec8b; REC8 meiotic recombination protein b isoform X1 [KO:K13054 ]
123997775 smc1b; structural maintenance of chromosomes protein 1B [KO:K06636 ]
124032292 structural maintenance of chromosomes protein 1A-like [KO:K06636 ]
124015302 smc3; structural maintenance of chromosomes protein 3 [KO:K06669 ]
124014475 mitotic spindle assembly checkpoint protein MAD2A-like [KO:K02537 ]
124008407 mitotic spindle assembly checkpoint protein MAD2A-like [KO:K02537 ]
124045084 mad2l2; mitotic spindle assembly checkpoint protein MAD2B [KO:K13728 ]
124022339 mitotic spindle assembly checkpoint protein MAD1-like [KO:K06679 ]
124024619 mitotic spindle assembly checkpoint protein MAD1-like [KO:K06679 ]
123990583 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform-like [KO:K11584 ]
123990967 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit gamma isoform-like isoform X1 [KO:K11584 ]
123994854 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform-like isoform X1 [KO:K11584 ]
123995312 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit gamma isoform-like isoform X1 [KO:K11584 ]
124041352 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform-like isoform X1 [KO:K11584 ]
124014488 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit beta isoform-like [KO:K11584 ]
124001142 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit gamma isoform-like isoform X1 [KO:K11584 ]
124038185 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform [KO:K11584 ]
124001311 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit epsilon isoform isoform X1 [KO:K11584 ]
124046206 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit gamma isoform isoform X1 [KO:K11584 ]
124046529 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit epsilon isoform-like isoform X1 [KO:K11584 ]
124017503 serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit beta isoform-like [KO:K11584 ]
123993117 ppp2r1bb; serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform [KO:K03456 ]
124004833 serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform isoform X1 [KO:K03456 ]
124010911 serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform-like isoform X1 [KO:K04382 ] [EC:3.1.3.16 ]
124013707 serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform-like isoform X1 [KO:K04382 ] [EC:3.1.3.16 ]
124003822 inositol 1,4,5-trisphosphate receptor type 1 isoform X1 [KO:K04958 ]
124003962 inositol 1,4,5-trisphosphate receptor type 1-like isoform X1 [KO:K04958 ]
124031230 inositol 1,4,5-trisphosphate receptor type 1-like isoform X1 [KO:K04958 ]
124031497 itpr1b; LOW QUALITY PROTEIN: inositol 1,4,5-trisphosphate receptor type 1 [KO:K04958 ]
124035132 inositol 1,4,5-trisphosphate receptor type 2-like isoform X1 [KO:K04959 ]
124002508 LOW QUALITY PROTEIN: inositol 1,4,5-trisphosphate receptor type 2-like [KO:K04959 ]
124045536 LOW QUALITY PROTEIN: inositol 1,4,5-trisphosphate receptor type 3-like [KO:K04960 ]
123993586 ppp3cb; serine/threonine-protein phosphatase 2B catalytic subunit beta isoform isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
124011241 serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform-like isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
124048714 serine/threonine-protein phosphatase 2B catalytic subunit gamma isoform-like isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
123999177 serine/threonine-protein phosphatase 2B catalytic subunit gamma isoform-like isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
124006395 serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform-like isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
124036504 serine/threonine-protein phosphatase 2B catalytic subunit gamma isoform-like isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
124007488 ppp3ca; serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
124014618 serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
124007866 serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform-like isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
124006684 camk2a; calcium/calmodulin-dependent protein kinase type II subunit alpha isoform X1 [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
ogo04914 Progesterone-mediated oocyte maturation
KO pathway
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