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SGO2

Gene
SGO2
Protein
Shugoshin 2
Organism
Homo sapiens
Length
1265 amino acids
Function
Cooperates with PPP2CA to protect centromeric cohesin from separase-mediated cleavage in oocytes specifically during meiosis I. Has a crucial role in protecting REC8 at centromeres from cleavage by separase. During meiosis, protects centromeric cohesion complexes until metaphase II/anaphase II transition, preventing premature release of meiosis-specific REC8 cohesin complexes from anaphase I centromeres. Is thus essential for an accurate gametogenesis. May act by targeting PPP2CA to centromeres, thus leading to cohesin dephosphorylation (By similarity). Essential for recruiting KIF2C to the inner centromere and for correcting defective kinetochore attachments. Involved in centromeric enrichment of AUKRB in prometaphase.
Similarity
Belongs to the shugoshin family.
Mass
144.739 kDa
Sequence
MECPVMETGSLFTSGIKRHLKDKRISKTTKLNVSLASKIKTKILNNSSIFKISLKHNNRALAQALSREKENSRRITTEKMLLQKEVEKLNFENTFLRLKLNNLNKKLIDIEALMNNNLITAIEMSSLSEFHQSSFLLSASKKKRISKQCKLMRLPFARVPLTSNDDEDEDKEKMQCDNNIKSKTLPDIPSSGSTTQPLSTQDNSEVLFLKENNQNVYGLDDSEHISSIVDVPPRESHSHSDQSSKTSLMSEMRNAQSIGRRWEKPSPSNVTERKKRGSSWESNNLSADTPCATVLDKQHISSPELNCNNEINGHTNETNTEMQRNKQDLPGLSSESAREPNAECMNQIEDNDDFQLQKTVYDADMDLTASEVSKIVTVSTGIKKKSNKKTNEHGMKTFRKVKDSSSEKKRERSKRQFKNSSDVDIGEKIENRTERSDVLDGKRGAEDPGFIFNNEQLAQMNEQLAQVNELKKMTLQTGFEQGDRENVLCNKKEKRITNEQEETYSLSQSSGKFHQESKFDKGQNSLTCNKSKASRQTFVIHKLEKDNLLPNQKDKVTIYENLDVTNEFHTANLSTKDNGNLCDYGTHNILDLKKYVTDIQPSEQNESNINKLRKKVNRKTEIISGMNHMYEDNDKDVVHGLKKGNFFFKTQEDKEPISENIEVSKELQIPALSTRDNENQCDYRTQNVLGLQKQITNMYPVQQNESKVNKKLRQKVNRKTEIISEVNHLDNDKSIEYTVKSHSLFLTQKDKEIIPGNLEDPSEFETPALSTKDSGNLYDSEIQNVLGVKHGHDMQPACQNDSKIGKKPRLNVCQKSEIIPETNQIYENDNKGVHDLEKDNFFSLTPKDKETISENLQVTNEFQTVDLLIKDNGNLCDYDTQNILELKKYVTDRKSAEQNESKINKLRNKVNWKTEIISEMNQIYEDNDKDAHVQESYTKDLDFKVNKSKQKLECQDIINKHYMEVNSNEKESCDQILDSYKVVKKRKKESSCKAKNILTKAKNKLASQLTESSQTSISLESDLKHITSEADSDPGNPVELCKTQKQSTTTLNKKDLPFVEEIKEGECQVKKVNKMTSKSKKRKTSIDPSPESHEVMERILDSVQGKSTVSEQADKENNLENEKMVKNKPDFYTKAFRSLSEIHSPNIQDSSFDSVREGLVPLSVSSGKNVIIKENFALECSPAFQVSDDEHEKMNKMKFKVNRRTQKSGIGDRPLQDLSNTSFVSNNTAESENKSEDLSSERTSRRRRCTPFYFKEPSLRDKMRR

Gene
Sgo2
Protein
Shugoshin 2
Organism
Mus musculus
Length
1164 amino acids
Function
Cooperates with PPP2CA to protect centromeric cohesin from separase-mediated cleavage in oocytes specifically during meiosis I. Has a crucial role in protecting REC8 at centromeres from cleavage by separase. During meiosis, protects centromeric cohesion complexes until metaphase II/anaphase II transition, preventing premature release of meiosis-specific REC8 cohesin complexes from anaphase I centromeres. Is thus essential for an accurate gametogenesis. May act by targeting PPP2CA to centromeres, thus leading to cohesin dephosphorylation. Essential for recruiting KIF2C to the inner centromere and for correcting defective kinetochore attachments. Involved in centromeric enrichment of AUKRB in prometaphase.
Similarity
Belongs to the shugoshin family.
Mass
130.277 kDa
Sequence
MEYPGIKVDTVTSGIQRRVKGRIAKTNLNVSLASKIKAKILNNSSIFKISLKHNNRALARALSKEKENSRRITTEKMQLQKEVEKLNFENTFLRLKLNTLNKKLVEIESHVSNDLLTAIEISSLSEFHQGSFLLSATKKQRNSKQCKPAHLPYARVLLTSENDDDDGADDKWQTKCNNRTISKTSPDSTSSVSRQPSSLHQCNLKAFPPKEDNQKTCGSGHLEHTSSVDILPNESHSDQSPKSSLSEMKTAPSPSLRREKLSHGNVTMRKKCVSSTPDILYVTDLDHQPTSSPGSNWNNEIHGHTNETSNNTQRNAECFLDLPSESSSEPDAKRMELVQKNTDSFHFQKTVYDAADMELTATDIGKIVAVSKSKKNQNKKKADCRKETFRKVKGASSDKKRESSKRECKDGSEVGAEEEADAARAERGAGVLDGRGDSEEPNCISSTEQPSQVNTQKKRTLQNSSDQENIQNTKRRQTYTTDEQEETNPFSRHSVKFLQDGKFDLCQKTLHHNLSKPSRQTFVIRKSEKDNLFPNQEDKDTISENLEVTNEFHIDDLSIEANENVCDHETQTMLDLKKSVSAQQNQTKINKTKQKINRRTKIISVMSQVYEDNDKDIHVLEKDNFPFHTQANKETTSGNLESSKEFESPLLFTRDNGSLRDCKTQNVLDLHKQIPDLYPDRNESQISKIPRQKVNRKTEVISGVKCFSNDQGVHCSEKDKSLLLQKDKDFPGTLKDLSEFDTPAFCNKDSAKSCDYKSEMLLGLKKHDPNMQPACQDDSKAGKKLRQKVNRKTEIISKITQIHENDRGSTHDSLNKKLCQKVNISKIISQMNQIYETINEDGNGFKSSIKDCEDIKSCDFGEINSNKKENYDPIQDPCTLVKKTKRKGSCKAGSSLAGAKNRCGLQLTDSSQVQSVPLDSGLRHHPNEADSGPGEQTNLPKMQKQSAGRSLGDAFSVSLGKEGSRPAKAVSKMTPKSKKRKLPLGCSPETHGTVEITPNTDLAKAVDSQQTEKENYLEKEKIAKRKPDFCTKVLKPLSETCSSNIKNSSLDSMCKSSLPLSISSRKTLMLEESSSLESTCIFQVGDAAHEKITTGTRNPHHRTQKSTPGSRTSLVLVDTSSVSDTNPANPENESEGQSSHPMRRKRQCVPLNLTEPSLRSKMRR

Gene
sgo2
Protein
Shugoshin-2
Organism
Schizosaccharomyces pombe (strain 972 / ATCC 24843)
Length
647 amino acids
Function
Involved in chromosome cohesion during mitosis and meiosis by preventing premature dissociation of cohesin complex from centromeres after prophase, when most of cohesin complex dissociates from chromosomes arms. Required for faithful mitotic chromosome segregation and proper kinetochore orientation during meiosis I. In contrast to sgo1, it is dispensable for centromeric protection of rec8 during meiosis I as well as protection of rad21 during mitosis. Required to sense the lack of tension at centromeres during mitosis.
Similarity
Belongs to the shugoshin family.
Mass
72.485 kDa
Sequence
MSKASLSPNVEDLKKKQIRQYKEIIRISKAQSIRIKELQLENERLLSENIDLRTTAINLEEQLETVQNENEENKTKLAALLNRFHEETDNFLSKLSLCQQEIQDTFKPVEANLAYDVDTDSEDLDEESVVKDTEEIIEQAQHDVSLRNLSGIEDENIIDDGETAINEQKKREANVFSDTQSAPQLKSGKALPADFENPYNLSNSKPVNNNNEDRVEAVTSENKSIDSAPQEKNHEYEIVSPKSLSNKINNQAAAQRRTEEDNANGVAQEENEGSQEAHFHSRIQSDTVIQSTPTKRKWDVDIQNKQINLASAATNVTGYVSETDSRPNRANSLDSAVLLVQSSNKSNRNGHHISDPNLNSSISLKFAPEDTAHNSLTSQENVGPQVTTTSLSNMTVAESPRTDTPREINGLVDSSVTNGNEKFSVEIMNDSNKIGLNPKSFTDEEREILTLFRNPPMRLSSEPPSSNGFSIAHPNNSPLRPPSLQGILNAEDRPYEIEPSRSSFATNDTGSYNNLELLSSVTNLKSPNENDRVTKTQSRRETKVKRRRKARIQETSEESTVVNEPNEKPDGRSRRERKKVNYALPGLRTKLRRNFDLPSDHVKAKKTRRAPKNSENDSATKTETANITSEAPTTSEVTLENSETLNL

Gene
SGO2
Protein
SHUGOSHIN 2
Organism
Arabidopsis thaliana
Length
470 amino acids
Function
Dispensable for both meiotic and mitotic cell cycle progression (PubMed:24206843, PubMed:23884434). Required with SGO1 for full protection of centromeric cohesion during anaphase I (PubMed:24206843). Required to prevent precocious release of pericentromeric cohesins during meiosis (PubMed:24206843). Acts redundantly to SGO1 (PubMed:24506176).
Similarity
Belongs to the shugoshin family.
Mass
53.706 kDa
Sequence
MVLTEMSLDYSNRVLGSQKDNVKQMDKEETQQKENMLFSSQEYAAKLQKENMTLMKALAHRNKLVELSGIEIQKLRINLRSVQEKNLQLAQANSQMLAELNTNRDRLKDLQHELGCKNALLKVKKHLEEQVLPRTHHESKDKVSASASDGDCKSFQVHDIKHKDTKRKRTTRIKSSVSADVKPIPVNDSNSKANRKRRVSGVIDTTGIPEEICQTEDDIDKGVVSRGVNQDIDNVVNKKFVPDAANPVKESVHRKRQCTRRQSTRFDVQETKQTEKLLEMDGAKESKETASFSLRRRSARLRHEEAEPCKSLHEGDEVRETIKRRRVSLRLSARFDIQEPHVTETSNADDARSIVIEESAGSRSESVEPSESRHETKEITRKRSFSTRRQSTKGKSQTDEAIKEIATDPSLVNTIVQECDQETESKDKPKADENEGMTRRSSVGRPSRHAAEKVQSYREVSLRVKMRRKC