Protein: DNA helicase MCM9 (hMCM9) (EC 3.6.4.12) (Mini-chromosome maintenance deficient domain-containing protein 1) (Minichromosome maintenance 9) (Q9NXL9)
Organism: Homo sapiens (Human)
Function: Component of the MCM8-MCM9 complex, a complex involved in the repair of double-stranded DNA breaks (DBSs) and DNA interstrand cross-links (ICLs) by homologous recombination (HR). Required for DNA resection by the MRE11-RAD50-NBN/NBS1 (MRN) complex by recruiting the MRN complex to the repair site and by promoting the complex nuclease activity. Probably by regulating the localization of the MRN complex, indirectly regulates the recruitment of downstream effector RAD51 to DNA damage sites including DBSs and ICLs. Acts as a helicase in DNA mismatch repair (MMR) following DNA replication errors to unwind the mismatch containing DNA strand. In addition, recruits MLH1, a component of the MMR complex, to chromatin. The MCM8-MCM9 complex is dispensable for DNA replication and S phase progression. Probably by regulating HR, plays a key role during gametogenesis (By similarity).
Subcellular location: Nucleus {ECO:0000269|PubMed:23401855, ECO:0000269|PubMed:26300262}. Chromosome {ECO:0000269|PubMed:23401855, ECO:0000269|PubMed:26300262}. Note=Colocalizes to nuclear foci with RPA1 following DNA damage (PubMed:23401855). Localizes to double-stranded DNA breaks (PubMed:23401855). Recruited to chromatin by MSH2 (PubMed:26300262). {ECO:0000269|PubMed:23401855, ECO:0000269|PubMed:26300262}.
InterPro domains:
- IPR031327: Mini-chromosome maintenance protein (family) [40-641]
- IPR003593: AAA+ ATPase domain (domain) [344-493]
- IPR033762: MCM OB domain (domain) [117-245]
- IPR041562: MCM, AAA-lid domain (domain) [522-604]
- IPR027417: P-loop containing nucleoside triphosphate hydrolase (homologous_superfamily) [281-608]
- IPR001208: MCM domain (domain) [302-508]
- IPR012340: Nucleic acid-binding, OB-fold (homologous_superfamily) [11-273]
Sequence:
MNSDQVTLVGQVFESYVSEYHKNDILLILKERDEDAHYPVVVNAMTLFETNMEIGEYFNMFPSEVLTIFDSALRRSALTILQSLSQPEAVSMKQNLHARISGLPVCPELVREHIPKTKDVGHFLSVTGTVIRTSLVKVLEFERDYMCNKCKHVFVIKADFEQYYTFCRPSSCPSLESCDSSKFTCLSGLSSSPTRCRDYQEIKIQEQVQRLSVGSIPRSMKVILEDDLVDSCKSGDDLTIYGIVMQRWKPFQQDVRCEVEIVLKANYIQVNNEQSSGIIMDEEVQKEFEDFWEYYKSDPFAGRNVILASLCPQVFGMYLVKLAVAMVLAGGIQRTDATGTRVRGESHLLLVGDPGTGKSQFLKYAAKITPRSVLTTGIGSTSAGLTVTAVKDSGEWNLEAGALVLADAGLCCIDEFNSLKEHDRTSIHEAMEQQTISVAKAGLVCKLNTRTTILAATNPKGQYDPQESVSVNIALGSPLLSRFDLILVLLDTKNEDWDRIISSFILENKGYPSKSEKLWSMEKMKTYFCLIRNLQPTLSDVGNQVLLRYYQMQRQSDCRNAARTTIRLLESLIRLAEAHARLMFRDTVTLEDAITVVSVMESSMQGGALLGGVNALHTSFPENPGEQYQRQCELILEKLELQSLLSEELRRLERLQNQSVHQSQPRVLEVETTPGSLRNGPGEESNFRTSSQQEINYSTHIFSPGGSPEGSPVLDPPPHLEPNRSTSRKHSAQHKNNRDDSLDWFDFMATHQSEPKNTVVVSPHPKTSGENMASKISNSTSQGKEKSEPGQRSKVDIGLLPSPGETGVPWRADNVESNKKKRLALDSEAAVSADKPDSVLTHHVPRNLQKLCKERAQKLCRNSTRVPAQCTVPSHPQSTPVHSPDRMLDSPKRKRPKSLAQVEEPAIENVKPPGSPVAKLAKFTFKQKSKLIHSFEDHSHVSPGATKIAVHSPKISQRRTRRDAALPVKRPGKLTSTPGNQISSQPQGETKEVSQQPPEKHGPREKVMCAPEKRIIQPELELGNETGCAHLTCEGDKKEEVSGSNKSGKVHACTLARLANFCFTPPSESKSKSPPPERKNRGERGPSSPPTTTAPMRVSKRKSFQLRGSTEKLIVSKESLFTLPELGDEAFDCDWDEEMRKKS
Predicted GO terms:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0003824 (catalytic activity), GO:0140657 (ATP-dependent activity), GO:0140640 (catalytic activity, acting on a nucleic acid), GO:0097159 (organic cyclic compound binding), GO:0004386 (helicase activity), GO:1901363 (heterocyclic compound binding), GO:0008094 (ATP-dependent activity, acting on DNA), GO:0005515 (protein binding), GO:0003676 (nucleic acid binding), GO:0003678 (DNA helicase activity), GO:0140097 (catalytic activity, acting on DNA), GO:0003677 (DNA binding), GO:0003697 (single-stranded DNA binding)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0009987 (cellular process), GO:0050896 (response to stimulus), GO:0051716 (cellular response to stimulus), GO:0006950 (response to stress), GO:0044237 (cellular metabolic process), GO:0071704 (organic substance metabolic process), GO:0044238 (primary metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0006725 (cellular aromatic compound metabolic process), GO:1901360 (organic cyclic compound metabolic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:0006139 (nucleobase-containing compound metabolic process), GO:0044260 (cellular macromolecule metabolic process), GO:0043170 (macromolecule metabolic process), GO:0046483 (heterocycle metabolic process), GO:0033554 (cellular response to stress), GO:0006259 (DNA metabolic process), GO:0090304 (nucleic acid metabolic process), GO:0006974 (cellular response to DNA damage stimulus), GO:0006310 (DNA recombination), GO:0006281 (DNA repair), GO:0000725 (recombinational repair), GO:0006302 (double-strand break repair), GO:0000724 (double-strand break repair via homologous recombination)
Cellular Component (CC): GO:0005575 (cellular component), GO:0032991 (protein-containing complex), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0031974 (membrane-enclosed lumen), GO:0005654 (nucleoplasm), GO:0043233 (organelle lumen), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0043228 (non-membrane-bounded organelle), GO:0043231 (intracellular membrane-bounded organelle), GO:0070013 (intracellular organelle lumen), GO:0043232 (intracellular non-membrane-bounded organelle), GO:0031981 (nuclear lumen), GO:0005694 (chromosome), GO:0005634 (nucleus), GO:0000228 (nuclear chromosome)