Table 1. Parts list of budding yeast and human kinetochores and centromeres.
Protein/component | Sub-complex | Complex | Sub- | Notes | |
---|---|---|---|---|---|
H. sapiens | S. cerevisiae | assembly | |||
CenpA | Cse4 | - | Nucleosome | I | Non-specific DNA binding (wraps AT- rich CDEII in Sc) |
Mis18α | MIS18C | MIS18-HJURP | I | CenpA loading machinery | |
Mis18β | MIS18C | MIS18-HJURP | I | CenpA loading machinery | |
Mis18bp | MIS18C | MIS18-HJURP | I | CenpA loading machinery | |
HJURP | Scm3 | - | MIS18-HJURP | CenpA chaperone (binds CenpA:H4) | |
Shugoshin-1 | Sgo1^ | - | - | - | Cohesion protection; PP2A receptor |
Shugoshin-2 | Sgo1^ | - | - | - | Cohesion protection; PP2A receptor |
CenpB | n/a | - | n/a | I | DNA binding (CenpB box) |
n/a | Cbf1 | - | n/a | DNA binding (CDEI) | |
n/a | Ndc10 | - | CBF3 | I | DNA binding (sequence independent) |
n/a | Ctf13 | CBF3core | CBF3 | I | DNA binding (CDEIII) |
n/a | Cep3 | CBF3core | CBF3 | I | DNA binding (CCG motif in CDEIII) |
n/a | Skp1 | CBF3core | CBF3 | I | F-box protein |
CenpC | Mif2 | - | CCAN/Ctf19C | II | DNA binding (AT hook); Dimer |
CenpH | McmI6 | HIKM | CCAN/Ctf19C | II | |
CenpI | Ctf3 | HIKM | CCAN/Ctf19C | II | |
CenpK | Mcm22 | HIKM | CCAN/Ctf19C | II | |
CenpL | Iml3 | NL | CCAN/Ctf19C | II | |
CenpM | McmI6 | HIKM | CCAN/Ctf19C | II | |
CenpN | Chl4 | NL | CCAN/Ctf19C | II | |
CenpO | Mcm21 | OPQUR/COMA | CCAN/Ctf19C | II | |
CenpP | Ctf19 | OPQUR/COMA | CCAN/Ctf19C | II | |
CenpQ | Okp1 | OPQUR/COMA | CCAN/Ctf19C | II | Ndc80-like MT binding |
CenpR | n/a | OPQUR | CCAN/Ctf19C | II | |
CenpS | Mhf1* | SX | TWSX | II | Histone-fold; also DNA repair role |
CenpT | Cnn1 | TW | TWSX | II | Histone-fold |
CenpU | Ame1 | OPQUR/COMA | CCAN/Ctf19C | II | Receptor for Plk1 (Hs) |
CenpV | n/a | - | - | GFA domain, CEN chromatin structure; meiosis, MT binding |
|
CenpW | Wip1 | TW | TWSX | II | Histone-fold |
CenpX | Mfh2* | SX | TWSX | II | Histone-fold; also DNA repair role |
n/a | Nkp1 | Nkp1/2 | CCAN/Ctf19C | II | |
n/a | Nkp2 | Nkp1/2 | CCAN/Ctf19C | II | |
Spc24 | Spc24 | NDC80 | KMN-S | III | RWD domains |
Spc25 | Spc25 | NDC80 | KMN-S | III | RWD domains |
Ndc80 | Ndc80 | NDC80 | KMN-S | III | CH domain/MT lattice binding |
Nuf1 | Nuf2 | NDC80 | KMN-S | III | CH domain/MT lattice binding |
Knl1 | Spc105 | KNL1 | KMN-S | III | MELT array as platform for SAC; PP1 receptor and MT binding (N-term) |
Zwint | Kre28 | KNL1 | KMN-S | III | |
Mis12 | Mtw1 | MIS12 | KMN-S | III | |
Nnf1 (Pmf1) | Nnf1 | MIS12 | KMN-S | III | |
Nsl1 | Nsl1 | MIS12 | KMN-S | III | |
Dsn1 | Dsn1 | MIS12 | KMN-S | III | Receptor for monopolin |
Ska1 | n/a | SKA | KMN-S | III | Load bearing device; MT Tip tracking - |
Ska2 | n/a | SKA | KMN-S | III | binding curved protofilaments |
Ska3 | n/a | SKA | KMN-S | III | |
Cdt1 | Tah11* | III | Also a replication factor; can bind Ndc80 loop |
||
Ch-TOG | Stu2 | - | - | III | MT polymerase; docks Ndc80 4-way junction |
n/a | Dam1 | - | Dam1C | III | MT Encircling-coupler |
n/a | Duo1 | - | Dam1C | III | |
n/a | Dad1 | - | Dam1C | III | |
n/a | Dad2 | - | Dam1C | III | |
n/a | Dad3 | - | Dam1C | III | |
n/a | Dad4 | - | Dam1C | III | |
n/a | Spc34 | - | Dam1C | III | |
n/a | Spc19 | - | Dam1C | III | |
n/a | Ask1 | - | Dam1C | III | |
n/a | Hsk3 | - | Dam1C | III | |
Astrin | n/a | - | Astrin/Skap | III | |
Skap | n/a | - | Astrin/Skap | III | |
MYCBP | n/a | - | Astrin/Skap | III | |
LC8 | n/a | - | Astrin/Skap | III | |
Bub1 | Bub1 | BUB1-BUB3 | SAC | III | Protein kinase |
Bub3 | Bub3 | BUB1-BUB3 | SAC | III | Phospho-MELT binding |
BubR1 | Mad3 | - | SAC | III | Mad3 lacking pseudo-kinase domain found in BubR1 |
Mad1 | Mad1 | MAD1-MAD2 | SAC | III (& VI) | Forms mitotic checkpoint complex |
Mad2 | Mad2 | MAD1-MAD2 | SAC | III (& VI) | (MCC) with BubR1 and Cdc20. |
Mps1 | Mps1 | - | SAC | III | Protein kinase (MELTs, xxx) |
p31 comet | n/a | SAC | SAC inhibitor | ||
CenpE | n/a | - | Corona | IV | Kinesin-7 MT plus-directed molecular motor |
CenpF | Slk19 | FNNL | Corona | IV | Homology unclear; MT binding and DD regulator in Hs. |
Rod | Sec39 and Sec31* |
RZZ-S | Corona | IV | Required for vesicle tethering in yeast |
Zw10 | Dsl1* and Tip20 |
RZZ-S | Corona | IV | Required for vesicle tethering in yeast |
Zwilch | n/a | RZZ-S | Corona | IV | |
Spindly | n/a | RZZ-S | Corona | IV | Dynein adapter |
- | - | Cytoplasmic Dynein* |
DD; Corona | IV | Minus-directed molecular motor (Dynein Heavy chain + 5 light/intermediate chains) |
- | - | Dynactin* | DD; Corona | IV | Dynein cofactor (11 subunits) |
Lis1 | Pac1* | FNNL | Corona | IV | Dynein cofactor |
Nde1 | Ndl1* | FNNL | Corona | IV | Dynein cofactor |
Ndel1 | Ndl1* | FNNL | Corona | IV | Dynein cofactor |
Clasp | Stu1 | - | Corona | IV | MT rescue factor |
Nup107 | Nup84* | NUP107-160 (NPC-Y) |
Corona | IV | Also a nuclear pore component |
Nup133 | Nup133* | NUP107-160 (NPC-Y) |
Corona | IV | Also a nuclear pore component |
Nup96 | Nup145C* | NUP107-160 (NPC-Y) |
Corona | IV | Also a nuclear pore component |
Sec13 | Seh1* | NUP107-160 (NPC-Y) |
Corona | IV | Also a nuclear pore component |
Nup160 | Nup120* | NUP107-160 (NPC-Y) |
Corona | IV | Also a nuclear pore component |
EB1 | Bim1 | - | - | - | MT end-tracker |
HSET† | Kar3 | - | - | - | Kinesin-14 MT minus-end directed molecular motor |
Kif18a | Kip3 | - | - | Kinesin-8 MT plus-end directed molecular motor and depolymerase; located on KT proximal K-fibre |
|
- | Csm1 | - | Monopolin | - | Also in the nucleolus |
- | Lrs4 | - | Monopolin | - | Also in the nucleolus |
- | Mam1 | - | Monopolin | - | Meiosis-specific |
CSKN1D† | Hrr25 | - | Monopolin | - | Protein kinase CK1d |
Meikin | Spo13 | - | - | - | Meiosis-specific kinase regulaltors (MOKIRs) |
AuroraB | Ipl1 | - | CPC | - | Protein kinase |
Survivin | Bir1 | - | CPC | - | CPC localisation |
Borealin | Nbl1 | - | CPC | - | CPC localisation |
INCENP | Sli15 | - | CPC | - | Kinase activation (IN-box) |
MCAK | n/a | - | - | - | Kinesin-13 MT catastrophe factor |
PP1 | Glc7 | - | - | - | Protein phosphatase 1 |
PP2A-B56 | PP2A-Rts1 | - | - | - | Protein phosphatase 2A |
Plk1 (Polo) | Cdc5 | - | - | - | Protein kinase |
Haspin | Hsk1*/2* | - | - | - | Protein kinase (H3T3ph) |
Cyclin B | Cyclin B-Cdk1 | Corona | IV | Binds Mad1 | |
Bod1 | - | - | - | - | Regulatory subunit for PP2A |
SENP family | Ulp2 | Docks to Ctf3/CenpI; desumolase |
Abbreviations: MT (Microtubule); n/a (no confirmed orthologue);
no evidence for kinetochore localisation in budding yeast* or humans†;
Budding yeast has a single shugoshin protein that has functions in common with mammalian Sgo1 and Sgo2.