2026-07-08 REL RCSB INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY RCSB RCSB 2026-01-16 2026-07-08 2026-07-08 2026-07-08 Howard Hughes Medical Institute (HHMI) United States apo CCAN purified from budding yeast Mengqiu J Sue B Chromosome segregation, kinetochore, centromere, CELL CYCLE Mengqiu J Sue B Native yeast kinetochore structures identify an essential inner kinetochore interaction To Be Published 0353 10fi FULLOVERLAP EMDB EMD-75131 associated EM volume
apo CCAN purified from budding yeast
 native purified inner kinetochore complex CCAN native purified inner kinetochore complex CCAN 0 1 2 3 4 5 6 7 8 9 10 11 Saccharomyces cerevisiae Inner kinetochore subunit MCM16 Saccharomyces cerevisiae 0.021166099999999997 1 LEVO MTNSSEKQWERIQQLEKEHVEVYRELLITLDRLYLIRKHNHAVILSHTQQRLLEIRHQLQINLEKTALLIRLLEKPDNTN VLFTKLQNLLEESNSLDYELLQSLGAQSSLHKQLIESRAERDELMSKLIELSSKFPKPTIPPDDSDTAGKQVEVEKENET IQELMIALQIHSGYTNISYTI Q12262 Inner kinetochore subunit CTF3 Saccharomyces cerevisiae 0.084345633 1 LEVO MSLILDDIILSLTNANERTPPQALKTTLSLLYEKSKQYGLSSPQLQALVRLLCETSIIDTVTKVYIVENCFLPDGYLTKE LLLEIINHLGTPTVFSRYRIQTPPVLQSALCKWLVHVYFLFPVHSEREHNISSSIWLHLWQFSFLQKWITPLVIWQATTP VDVKPWKLSIIKRCAMHPGYRDAPGSATLILQRFQCLVGASSQITESIITINCNRKTLKSHRNLKLDAHFLSILKRILSR AHPANFPADTVQNTIDMYLSEIHQLGADSIYPLRLQSLPEYVPSDSTVSLWDVTSLEQLAQNWPQLHIPNDVDYMMKPSL NSNVLLPRKVMSRDSLKHLYSSIILIKNSRDESSSPYEWCIWQLKRCFAHQIETPQEVIPIIISVSSMDNKLSSRIIQTF CNLKYLKLDELTLKKVCGGILPLWKPELISGTREFFVKFMASIFMWSTRDGHDNNCTFSETCFYVLQMITNWVLDDKLIA LGLTLLHDMQSLLTLDKIFNNATSNRFSTMAFISSLDILTQLSKQTKSDYAIQYLIVGPDIMNKVFSSDDPLLLSAACRY LVATKNKLMQYPSTNKFVRMQNQYIMDLTNYLYRNKVLSSKSLFGVSPDFFKQILENLYIPTADFKNAKFFTITGIPALS YICIIILRRLETAENTKIKFTSGIINEETFNNFFRVHHDEIGQHGWIKGVNNIHDLRVKILMHLSNTANPYRDIAAFLFT YLKSLSKYSVQNS Q12748 Inner kinetochore subunit MCM22 Saccharomyces cerevisiae 0.027602541 1 LEVO MDVEKDVLDVYIKNLENQIGNKRYFLKQAQGAIDEITKRSLDTEGKPVNSEVFTELLRKPMFFSERADPIGFSLTSNFLS LRAQSSSEWLSLMNDQSVDQKAMLLLQNNINSDLKELLRKLQHQMTIMDSKKQDHAHIRTRKARNKELWDSLADFLKGYL VPNLDDNDESIDSLTNEVMLLMKRLIEHDLNLTLNDFSSKTIPIYRLLLRANIITVIEGSTNPGTKYIKLIDFNETSLT P47167 Inner kinetochore subunit IML3 Saccharomyces cerevisiae 0.028093223 1 LEVO MPYTWKFLGISKQLSLENGIAKLNQLLNLEVDLDIQTIRVPSDPDGGTAADEYIRYEMRLDISNLDEGTYSKFIFLGNSK MEVPMFLCYCGTDNRNEVVLQWLKAEYGVIMWPIKFEQKTMIKLADASIVHVTKENIEQITWFSSKLYFEPETQDKNLRQ FSIEIPRESCEGLALGYGNTMHPYNDAIVPYIYNETGMAVERLPLTSVILAGHTKIMRESIVTSTRSLRNRVLAVVLQSI QFTSE P38265 Inner kinetochore subunit CHL4 Saccharomyces cerevisiae 0.05274372299999999 1 LEVO MSNELRLEDNYVPTSDTLVVFKQLMKLPVTVLYDLTLSWFAKFGGSFDGDIYLLTETLDLLIEKGVRRNVIVNRILYVYW PDGLNVFQLAEIDCHLMISKPEKFKWLPSKALRGDGKPYVVKLQPAKFIENLQTDLAKIYHCHVYMFKHPSLPVLITRIQ LFDSNNLFLSTPNIGSINKESLYNKLDKFQGKPLISRRPYYVAFPLNSPIIFHSVDKDIYARLVLQSISRTISERETIIF KPVQKIPVKSIHNIMTLLGPSRFAESMGPWECYASANFERSPLHDYKKHQGLTGKKVMVREFDDSFLNDDENFYGKEEPE IRRLRLEKNMIKFKGSANGVMDQKYNDLKEFNEHVHNIRNGKKNEDSGEPVYISRYSSLVPIEKVGFTLKNEINSRIITI KLKFNGNDIFGGLHELCDKNLINIDKVPGWLAGENGSFSGTIMNGDFQREQVAKGGLL P38907 Inner kinetochore subunit MCM21 Saccharomyces cerevisiae 0.043028879 1 LEVO MSRIDDLQQDIESLLSEINSLEESREKLKAKIKDKRKNEESANPIVQEFEDLFDQFPQLNNFLFNEHPELEETDDKDISR AQADIPATPIPYEPKKRAKLENEEILPEQEWVLKTQPMVQHQMFDPGVADLLDTDILTSPSKRKRKLKIDDISTSDRSEL EDYIVLENVYRMFGITFFPLVDPIDLKIKDASGEIFVDREMLGIRLEVFSERTSQFEKPHYVLLKKRIKSNSWFLFKHTI PSFIDVQGIFDDTNGGLVISHDDAYLFAKRVFLQLVEVQKRRQIFKDLEAKKIIHDLDLDLESSMVSFFVKDIKVELFVK QNEIVSCSILDDIHDFSQNNKSKWEIALLGSLDDLELKLNHSFATIFK Q06675 Inner kinetochore subunit CTF19 Saccharomyces cerevisiae 0.04284111299999999 1 LEVO MDFTSDTTNSHDTSNSHLSLEDAVGTHHAGEADVNIDGDEKQQLSLLDDDQVRALKLQEEKDALLTRRNTLLQEIQTYQN ILMKENNSKTKNGDILQNDITQDFLNLISISSSNPNSAISDRKRVERINGLTNLQKELVTKYDTLPLLNMNLRLSYLRDH TYPHLQVSVQSRDRVHNDGIEVLVVNYKFCRNTMNPFEIQFKMFYKFEDSTLLKWEILRISTNVRLKAKQLLATRNFQKC LLSLYEFDKIKSKKTGIFQNLINLLKRKTRCYLMNNSDSLIVERVIREGRLTTIKLQINFIITMPGERGKPRNCFLPMSK ISIALWKGGERFNQIDLDEICYGLIKEYGVKTGLKEICNVCLFPDMYAR Q02732 Inner kinetochore subunit OKP1 Saccharomyces cerevisiae 0.047427246 1 LEVO MAADRDNFLQNIENDSINNGQAMDLSPNRSSSESDSSILMNVNDIKTLRLDVAPEAKSTQSKKSLFYENSDDAEEGEIEE RTNKEEGQYHHKGSKQLRFEVGKESTGKLQSHLSDGSATSGEGNVRPWEFRKVIQAEYRERLPRNYELKHWKKPSKIMIG SILRLLETNTVSALDSVFEKYEKEMNQMTHGDNNEVKRIYSKKERLLEIILTKIKKKLRQAKFPSRISERDLDIEYIYSK RQFIQNRYSQELQNNERLEAILSREQNLLEETRKLCMNLKTNNKKRLTEKLIQKDLHPVLNKAMEYTYGLESTNGFMHPD GPVTFRNDSHELNLMLNDPIKSTADVRLDKEEVLSLLPSLKEYTKKSKELKETMGQMISDSHEEEIKEVFVPHHESHQDK TEEDIH P53298 K7_Ame1p Saccharomyces cerevisiae 0.037562741999999996 1 LEVO MDRDTKLAFRLRGSHSRRTDDIDDDVIVFKTPNAVYREENSPIQSPVQPILSSPKLANSFEFPITTNNVNAQDRHEHGYQ PLDAEDYPMIDSENKSPISESPQNVRNDEDLTTRYNFDDIPIRQLSSSITSVTTIDVLSSLFINLFENDLIPQALKDFNK SDDDQFRKLLYKLDLRLFQTISDQMTRDLKDILDINVSNNELCYQLKQVLARKEDLNQQIISVRNEIQELKAGKDWHDLQ NEQAKLNDKVKLNKRLNDLTSTLLGKYEEDRKIMSQDSEDDSIRDDSNILDIAHFVDLMDPYNGLLKKINKINENLSNEL QPSL G2W9L4 Inner kinetochore subunit NKP1 Saccharomyces cerevisiae 0.027006451 1 LEVO MTDTYNSISNFIENELTALLSSDDYLMDDLAGELPNEVCRLLKAQVIEKRKDAMSRGKQDLLSKEIYDNESELRASQSQQ IMELVGDIPKYSLGSELRNRVEGEPQSTSIERLIEDVLKLPQMEVADEEEVEVENDLKVLSEYSNLRKDLILKCQALQIG ESKLSDILSQTNSINSLTTSIKEASEDDDISEYFATYNGKLVVALEEMKLLLEEAVKTFGNSPEKREKIKKILSELKK Q12493 Inner kinetochore subunit NKP2 Saccharomyces cerevisiae 0.017877032999999997 1 LEVO MNSEQLLHNYVSDSLLTTLISFQEFKQQLQSYTSDEQQLQHWYELLQARDARVTSELEARIKQFFITLRSRLLRFLESEQ LSHSLSLETLIDALYKINDLLQQRLQILDDAIQEKTSELAEFENMVRSPSAGDNAIPGLLQIIQSYINLLEEN Q06162 singleParticle particle 7.5 ETHANE TFS KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 1.0 2.0 GATAN K3 (6k x 4k) 50.0 1 cryoSPARC PHASE FLIPPING AND AMPLITUDE CORRECTION 6GYS 3.3 FSC 0.143 CUT-OFF cryoSPARC 48570 MAXIMUM LIKELIHOOD cryoSPARC MAXIMUM LIKELIHOOD emd_75131.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 428.00003 428.00003 428.00003 90.0 90.0 90.0 X Y Z -0.8920621 1.4497213 0.0011170184 0.027167708 1.07 1.07 1.07 0.243 AUTHOR emd_75131_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 428.00003 428.00003 428.00003 90.0 90.0 90.0 X Y Z -0.7641145 1.3274623 0.0011222542 0.061984256 1.07 1.07 1.07 AUTHOR emd_75131_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 428.00003 428.00003 428.00003 90.0 90.0 90.0 X Y Z -0.6649655 1.2829018 0.0010992413 0.06214191 1.07 1.07 1.07 AUTHOR