SGID Silkworm Genome Informatics Database
Gene
KWMTBOMO11653
Pre Gene Modal
BGIBMGA003995
Annotation
PREDICTED:_centromere_protein_X-like_[Amyelois_transitella]
Full name
Centromere protein X      
Alternative Name
FANCM-interacting histone fold protein 2
Fanconi anemia-associated polypeptide of 10 kDa
Stimulated by retinoic acid gene 13 protein homolog
FANCM-associated histone fold protein 2
Retinoic acid-inducible gene D9 protein homolog
Immediate-early-response protein D9
Retinoic acid-inducible gene D9 protein
Location in the cell
Cytoplasmic   Reliability : 1.395 Extracellular   Reliability : 1.627 Mitochondrial   Reliability : 1.065
 

Sequence

CDS
ATGGCCCGCAATATTAAGGACAATAATAATATTGATCCGGCTACTTTATTGTCTAATGTGAAAAGTACAATTAAAAAGGATGTAATAAAGGAACTATTAGAAAACCACTTCCAAGAAAGTAAAACCAAGATTGCCCCACATGCTCTTATGTTGTTGGCAGATGTGGCCAAATGTCTGGTCACCGAGACATGCCTGCGTGCAGTCAAACAAGCACAGAGAGAGGGTTCTAACAAAGTTGATGTAGAACATATTGAGAAATGTTTACCCCAGCTGATGCTGGACTTCCCTTAA
Protein
MARNIKDNNNIDPATLLSNVKSTIKKDVIKELLENHFQESKTKIAPHALMLLADVAKCLVTETCLRAVKQAQREGSNKVDVEHIEKCLPQLMLDFP

Summary

Description
DNA-binding component of the Fanconi anemia (FA) core complex. Required for the normal activation of the FA pathway, leading to monoubiquitination of the FANCI-FANCD2 complex in response to DNA damage, cellular resistance to DNA cross-linking drugs, and prevention of chromosomal breakage. In complex with CENPS (MHF heterodimer), crucial cofactor for FANCM in both binding and ATP-dependent remodeling of DNA. Stabilizes FANCM. In complex with CENPS and FANCM (but not other FANC proteins), rapidly recruited to blocked forks and promotes gene conversion at blocked replication forks. In complex with CENPS, CENPT and CENPW (CENP-T-W-S-X heterotetramer), involved in the formation of a functional kinetochore outer plate, which is essential for kinetochore-microtubule attachment and faithful mitotic progression. As a component of MHF and CENP-T-W-S-X complexes, binds DNA and bends it to form a nucleosome-like structure. DNA-binding function is fulfilled in the presence of CENPS, with the following preference for DNA substates: Holliday junction > double-stranded > splay arm > single-stranded. Does not bind DNA on its own.
DNA-binding component of the Fanconi anemia (FA) core complex. Required for the normal activation of the FA pathway, leading to monoubiquitination of the FANCI-FANCD2 complex in response to DNA damage, cellular resistance to DNA cross-linking drugs, and prevention of chromosomal breakage (PubMed:20347428, PubMed:20347429). In complex with CENPS (MHF heterodimer), crucial cofactor for FANCM in both binding and ATP-dependent remodeling of DNA. Stabilizes FANCM. In complex with CENPS and FANCM (but not other FANC proteins), rapidly recruited to blocked forks and promotes gene conversion at blocked replication forks (PubMed:20347428, PubMed:20347429). In complex with CENPS, CENPT and CENPW (CENP-T-W-S-X heterotetramer), involved in the formation of a functional kinetochore outer plate, which is essential for kinetochore-microtubule attachment and faithful mitotic progression (PubMed:19620631). As a component of MHF and CENP-T-W-S-X complexes, binds DNA and bends it to form a nucleosome-like structure (PubMed:20347428, PubMed:20347429). DNA-binding function is fulfilled in the presence of CENPS, with the following preference for DNA substates: Holliday junction > double-stranded > splay arm > single-stranded. Does not bind DNA on its own (PubMed:20347429).
Subunit
Heterodimer with CENPX, sometimes called MHF; this interaction stabilizes both partners. MHF heterodimers can assemble to form tetrameric structures. MHF also coassemble with CENPT-CENPW heterodimers at centromeres to form the tetrameric CENP-T-W-S-X complex. Forms a discrete complex with FANCM and CENPX, called FANCM-MHF; this interaction, probably mediated by direct binding between CENPS and FANCM, leads to synergistic activation of double-stranded DNA binding and strongly stimulates FANCM-mediated DNA remodeling. Recruited by FANCM to the Fanconi anemia (FA) core complex, which consists of CENPS, CENPX, FANCA, FANCB, FANCC, FANCE, FANCF, FANCG, FANCL, FANCM, FAAP24 and FAAP100. The FA core complex associates with Bloom syndrome (BLM) complex, which consists of at least BLM, DNA topoisomerase 3-alpha (TOP3A), RMI1/BLAP75, RPA1/RPA70 and RPA2/RPA32. The super complex between FA and BLM is called BRAFT.
Heterodimer with CENPX, sometimes called MHF; this interaction stabilizes both partners (PubMed:19620631, PubMed:20347428, PubMed:20347429, PubMed:24522885). MHF heterodimers can assemble to form tetrameric structures (PubMed:22304917). MHF also coassemble with CENPT-CENPW heterodimers at centromeres to form the tetrameric CENP-T-W-S-X complex (PubMed:22304917, PubMed:24522885). Forms a discrete complex with FANCM and CENPX, called FANCM-MHF; this interaction, probably mediated by direct binding between CENPS and FANCM, leads to synergistic activation of double-stranded DNA binding and strongly stimulates FANCM-mediated DNA remodeling (PubMed:20347428, PubMed:20347429). Recruited by FANCM to the Fanconi anemia (FA) core complex, which consists of CENPS, CENPX, FANCA, FANCB, FANCC, FANCE, FANCF, FANCG, FANCL, FANCM, FAAP24 and FAAP100. The FA core complex associates with Bloom syndrome (BLM) complex, which consists of at least BLM, DNA topoisomerase 3-alpha (TOP3A), RMI1/BLAP75, RPA1/RPA70 and RPA2/RPA32. The super complex between FA and BLM is called BRAFT (PubMed:20347428, PubMed:20347429).
Similarity
Belongs to the CENP-X/MHF2 family.
Keywords
Acetylation   Cell cycle   Cell division   Centromere   Chromosome   Complete proteome   DNA damage   DNA repair   DNA-binding   Kinetochore   Mitosis   Nucleus   Reference proteome   3D-structure   Alternative splicing  
Feature
chain  Centromere protein X
splice variant  In isoform 2 and isoform 3.
EMBL
AB766233    BAN29074.1    NWSH01001413    PCG71316.1    BABH01021684    BABH01021685    + More
BABH01021686    AGBW02009781    OWR49930.1    GAIX01006169    JAA86391.1    NEVH01013275    PNF28991.1    BC111642    AQIB01145127    AMGL01019053    BDGG01000008    GAV02613.1    AERX01023620    HAED01000100    SBQ85945.1    KK853060    KDR11906.1    AGTP01070805    U95006    U95007    AC137723    BC009571    BC011610    MKHE01000005    OWK15379.1    NBAG03000462    PNI21615.1    NDHI03003285    PNJ87331.1    CR858542    AANG04004184    GAMT01004525    GAMR01010676    GAMQ01007701    GAMP01002097    JAB07336.1    JAB23256.1    JAB34150.1    JAB50658.1    KN121670    KFO35722.1    HADZ01018203    SBP82144.1    HAEJ01001156    SBS41613.1    HADY01012629    SBP51114.1    HAEA01002514    SBQ30994.1    HAEE01006934    SBR26954.1    AQIA01029018    GCES01153822    JAQ32500.1    ACTA01112152    PYGN01001624    PSN33705.1    AAKN02047352    KB320577    ELW68190.1    JSUE03017652    HAEG01005132    SBR73364.1    HAEH01010665    SBR90295.1    HAEC01014998    SBQ83215.1    HAEI01014979    SBS17448.1    HAEB01006557    SBQ53084.1    CU571328    HADW01017438    SBP18838.1    APGK01035370    KB740923    KB632333    ENN78300.1    ERL92727.1    KQ460949    KPJ10488.1    CP026261    AWP18973.1    GANP01001065    JAB83403.1    U95003    U95004    U95005    AK076181    AK080500    AK170126    AL663030    KQ459185    KPJ03248.1    JH882459    ELR49319.1    KE682086    ERE67860.1    HADX01010894    SBP33126.1   
Pfam
PF09415   CENP-X
Interpro
IPR009072   Histone-fold        + More
IPR018552   CENP-X       
SUPFAM
SSF47113   SSF47113       
PDB
4E45     E-value=6.41735e-13,     Score=172

Ontologies

Topology

Subcellular location
Nucleus   Assembly of CENPS and CENPX and its partner subunits CENPT and CENPW at centromeres occurs through a dynamic exchange mechanism. Although exchange is continuous in the cell cycle, de novo assembly starts principally during mid-late S phase and is complete by G2. CENPX being less stably bound at the kinetochore than CENPS.   With evidence from 1 publications.
Chromosome   Assembly of CENPS and CENPX and its partner subunits CENPT and CENPW at centromeres occurs through a dynamic exchange mechanism. Although exchange is continuous in the cell cycle, de novo assembly starts principally during mid-late S phase and is complete by G2. CENPX being less stably bound at the kinetochore than CENPS.   With evidence from 1 publications.
Centromere   Assembly of CENPS and CENPX and its partner subunits CENPT and CENPW at centromeres occurs through a dynamic exchange mechanism. Although exchange is continuous in the cell cycle, de novo assembly starts principally during mid-late S phase and is complete by G2. CENPX being less stably bound at the kinetochore than CENPS.   With evidence from 1 publications.
Kinetochore   Assembly of CENPS and CENPX and its partner subunits CENPT and CENPW at centromeres occurs through a dynamic exchange mechanism. Although exchange is continuous in the cell cycle, de novo assembly starts principally during mid-late S phase and is complete by G2. CENPX being less stably bound at the kinetochore than CENPS.   With evidence from 1 publications.
Length:
96
Number of predicted TMHs:
0
Exp number of AAs in TMHs:
0.00943
Exp number, first 60 AAs:
0.0072
Total prob of N-in:
0.75218
inside
1  -  96
 
 

Population Genetic Test Statistics

Pi
280.525274
Theta
202.028499
Tajima's D
1.321692
CLR
0
CSRT
0.744512774361282
Interpretation
Uncertain
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