The following text describes a protein:
Function:
Cysteine protease, which plays a central role in homologous chromosome separation during meiosis I and in sister chromatid separation during embryonic mitosis. Promotes chromosome/sister chromatid segregation by cleaving the scc-1 (mitosis) and rec-8 (meiosis) subunits of the cohesin complex at the onset of anaphase (Probable). May cleave histone H3-like protein cpar-1 during meiosis I metaphase-anaphase transition. Promotes cortical granule exocytosis after oocyte fertilization during the first meiotic anaphase. Essential for embryonic cytokinesis by regulating rab-11-positive vesicle trafficking at the plasma membrane at the cleavage furrow and midbody. Regulates centriole segregation during spermatocyte meiosis. Required for embryonic anterior-posterior axis formation.
Subcellular Localization:
Cytoplasm. Chromosome. Cytoplasmic granule. Cytoplasm, cytoskeleton. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cytoskeleton, spindle. Cleavage furrow. Midbody. Note=Before ovulation, accumulates on chromosomes and cortical filaments in oocytes. By metaphase I, dissociates from filaments and transiently localizes to cortical granules until their exocytosis during anaphase I followed by an accumulation at the cortex near the polar body. Localizes to meiotic spindle matrix. During mitotic metaphase and anaphase, localizes to chromosomes, centrosomes and the spindle matrix. During spermatogenesis, localizes to the spermatocyte cytoplasm throughout meiotic prophase I. At the diplotene stage of prophase I accumulates at low levels in puncta around the nuclear envelope. At diakinesis, transiently localizes to centrosomes until nuclear envelope breakdown. At metaphase I and II becomes highly enriched around chromosomes. At anaphase I and II, chromosomal localization is reduced and centrosome localization is highly increased. Localizes to residual body during the budding division leading to spermatid formation.
Sequence:
MKITNKSVDKQHIEKLDELRKNVSCTVIGFAEQTAELQQEISELFIAEFGVNGPIDMNSLSKLARITSYYASSEYFQGLAKYQRTACKMFITWQTLRKEAMECRSKDREIFASIPAKLCFFYFYNGELCRAVVCLLDYIDLSDDTLAKEAALRWLMFLGETELIEKKLKTWKMDKSSKDMFSATEFAMNYLKKSEYRVEMLEKLMKLRDKVKSDPTRSFSRYELASYVSWLCSTLSNVPVGSALRECEFPDRVSHIQEAALKSDSLVRNRIPGLASSQFDNSVNASIWPFLDGHQEDSNYYVHIGSTIAWHFEMRRECALVNVTTAQTRDSMSAMILNLRVALKSASFFRVLQTTNTLAYYSSIIEEAGSEKNAKLMRVSCVNLLSSNPIIVRCSTPKETGATSRAHTPMAGSSVSEKQNTMRPDLADLLGDLELLDEQSFHPITRSCVCNVCTIYPLHSSFAAEYMMSYAIHSDFSQLSIKHFNDEFARIRERGMSSQVLMHRDSSVRPRPNIIQNEIFGMCVIRWLTKKLDSKESADEDTMEIFNNALKIVRYLQQRTTDMILAVTQLGRQLEFPMECNYSWMRPTIRKPRVKATIDCAVDILRAVSPFGRRPKVEKLEKNLQPFDKERFEKVRLAMRNEMNHYGHILYREWRCRLFAYVGRTSRDPWEAAYAWAESTQIGARNAVQSRLEKCKRGLVTMSGHDRFKTCVQSMPDEMTLVQIAMADDKTIYLVKLHADRDPIIMPLAHYSQAVELMDKFTFLLDEDEMIAKYPGDITPEEFWKRRKIVDGRMMTFVDEVQKHFLGVAASLLMPSGQLGPKAAELAIKIHKLSKGGLLLGEAKEMVYQSKLMDAKSWEALILRFCEMRTTDEKFKSFLPLMHRNSVEVMNQDDSIVTEKKYTYLVICPHLSQFCWERLPIFDEYPYVGRQVSIHSTFSQLEAMKSQEKQIPLQIDVQNAYYILDPDNNLGETQKRMVEYINKFNWEGTVGSAPKSNEISAALSQRDAFFFIGHGSGSSVMPRSVLKQSTCNAISLLMGCGSVRTIPQALGFDGKTAILDYAMAKCPLIVGCLWTVTDGEIDRFLIRMIDDCFEDSKSLTGIDKLRQLSEAMHEARSKARLKYLTGAAVVMYGLPVVAKQTTPFVEKDQRNLPQTPKTSARTSMRMETVPKTPKQEFVTSKSVPMTPIFSNNENKSPSRARMPSRVLKTPRQVKTFQEEDDEAPKRSTTRQLKPLVAPPIPATPTTRTTRSSARTPSRSRNL