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KU80_ASPOR
ID   KU80_ASPOR              Reviewed;         725 AA.
AC   Q2MHH2;
DT   20-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   21-FEB-2006, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=ATP-dependent DNA helicase II subunit 2;
DE            EC=3.6.4.12;
DE   AltName: Full=ATP-dependent DNA helicase II subunit Ku80;
GN   Name=ku80;
OS   Aspergillus oryzae (strain ATCC 42149 / RIB 40) (Yellow koji mold).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC   Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC   Aspergillus subgen. Circumdati.
OX   NCBI_TaxID=510516;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 42149 / RIB 40;
RX   PubMed=16428831; DOI=10.1271/bbb.70.135;
RA   Takahashi T., Masuda T., Koyama Y.;
RT   "Identification and analysis of Ku70 and Ku80 homologs in the koji molds
RT   Aspergillus sojae and Aspergillus oryzae.";
RL   Biosci. Biotechnol. Biochem. 70:135-143(2006).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 42149 / RIB 40;
RX   PubMed=16372010; DOI=10.1038/nature04300;
RA   Machida M., Asai K., Sano M., Tanaka T., Kumagai T., Terai G., Kusumoto K.,
RA   Arima T., Akita O., Kashiwagi Y., Abe K., Gomi K., Horiuchi H.,
RA   Kitamoto K., Kobayashi T., Takeuchi M., Denning D.W., Galagan J.E.,
RA   Nierman W.C., Yu J., Archer D.B., Bennett J.W., Bhatnagar D.,
RA   Cleveland T.E., Fedorova N.D., Gotoh O., Horikawa H., Hosoyama A.,
RA   Ichinomiya M., Igarashi R., Iwashita K., Juvvadi P.R., Kato M., Kato Y.,
RA   Kin T., Kokubun A., Maeda H., Maeyama N., Maruyama J., Nagasaki H.,
RA   Nakajima T., Oda K., Okada K., Paulsen I., Sakamoto K., Sawano T.,
RA   Takahashi M., Takase K., Terabayashi Y., Wortman J.R., Yamada O.,
RA   Yamagata Y., Anazawa H., Hata Y., Koide Y., Komori T., Koyama Y.,
RA   Minetoki T., Suharnan S., Tanaka A., Isono K., Kuhara S., Ogasawara N.,
RA   Kikuchi H.;
RT   "Genome sequencing and analysis of Aspergillus oryzae.";
RL   Nature 438:1157-1161(2005).
CC   -!- FUNCTION: Single-stranded DNA-dependent ATP-dependent helicase.
CC       Involved in non-homologous end joining (NHEJ) DNA double strand break
CC       repair. DNA-binding is sequence-independent but has a high affinity to
CC       nicks in double-stranded DNA and to the ends of duplex DNA. Binds to
CC       naturally occurring chromosomal ends, and therefore provides
CC       chromosomal end protection. Required also for telomere recombination to
CC       repair telomeric ends in the absence of telomerase. ku70, of the
CC       ku70/ku80 heterodimer, binds to the stem loop of tlc1, the RNA
CC       component of telomerase. Involved in telomere maintenance. Interacts
CC       with telomeric repeats and subtelomeric sequences thereby controlling
CC       telomere length and protecting against subtelomeric rearrangement.
CC       Maintains telomeric chromatin, which is involved in silencing the
CC       expression of genes located at the telomere. Required for mating-type
CC       switching.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O = ADP + H(+) + phosphate; Xref=Rhea:RHEA:13065,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=3.6.4.12;
CC   -!- SUBUNIT: Heterodimer of Ku70 and Ku80. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000250}. Chromosome, telomere
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the ku80 family. {ECO:0000305}.
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DR   EMBL; AB214651; BAE78503.1; -; Genomic_DNA.
DR   EMBL; AP007159; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   AlphaFoldDB; Q2MHH2; -.
DR   SMR; Q2MHH2; -.
DR   STRING; 510516.Q2MHH2; -.
DR   OMA; WAMQYVW; -.
DR   Proteomes; UP000006564; Chromosome 3.
DR   GO; GO:0000781; C:chromosome, telomeric region; IEA:UniProtKB-SubCell.
DR   GO; GO:0043564; C:Ku70:Ku80 complex; IEA:InterPro.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0016887; F:ATP hydrolysis activity; IEA:RHEA.
DR   GO; GO:0003684; F:damaged DNA binding; IEA:InterPro.
DR   GO; GO:0003678; F:DNA helicase activity; IEA:UniProtKB-EC.
DR   GO; GO:0042162; F:telomeric DNA binding; IEA:InterPro.
DR   GO; GO:0006310; P:DNA recombination; IEA:UniProtKB-KW.
DR   GO; GO:0006303; P:double-strand break repair via nonhomologous end joining; IEA:InterPro.
DR   GO; GO:0000723; P:telomere maintenance; IEA:InterPro.
DR   CDD; cd00873; KU80; 1.
DR   Gene3D; 1.25.40.240; -; 1.
DR   Gene3D; 2.40.290.10; -; 1.
DR   Gene3D; 3.40.50.410; -; 1.
DR   InterPro; IPR006164; Ku70/Ku80_beta-barrel_dom.
DR   InterPro; IPR024193; Ku80.
DR   InterPro; IPR036494; Ku_C_sf.
DR   InterPro; IPR005161; Ku_N.
DR   InterPro; IPR014893; Ku_PK_bind.
DR   InterPro; IPR016194; SPOC-like_C_dom_sf.
DR   InterPro; IPR002035; VWF_A.
DR   InterPro; IPR036465; vWFA_dom_sf.
DR   Pfam; PF02735; Ku; 1.
DR   Pfam; PF03731; Ku_N; 1.
DR   Pfam; PF08785; Ku_PK_bind; 1.
DR   PIRSF; PIRSF016570; Ku80; 1.
DR   SMART; SM00559; Ku78; 1.
DR   SUPFAM; SSF100939; SSF100939; 1.
DR   SUPFAM; SSF101420; SSF101420; 1.
DR   SUPFAM; SSF53300; SSF53300; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Chromosome; DNA damage; DNA recombination; DNA repair;
KW   DNA-binding; Helicase; Hydrolase; Nucleotide-binding; Nucleus;
KW   Reference proteome; Telomere.
FT   CHAIN           1..725
FT                   /note="ATP-dependent DNA helicase II subunit 2"
FT                   /id="PRO_0000278349"
FT   DOMAIN          229..481
FT                   /note="Ku"
FT   REGION          259..298
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          704..725
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        278..298
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        707..725
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   725 AA;  81742 MW;  F4662B9A4F6383A4 CRC64;
     MADKEATVYI VDVGRSMGEC RNGRSVTDLE WAMQYVWDRI TGTVATGRKT AMMGVIGLRT
     DETSNELEDD VHFSHIAVLS NLKQFLMPDI RKLEDELKPS KTDKGDAISA IILAIQMIIT
     HCKKLKYRRK IVLVTNGQGR MSDEDLGEIV KKVKEDNIEL VVMGIDFDDP EYGYKEEDKD
     PHKAENETLL RTLVEDCDGV YGTFEQAVAE LDIPRVKSVR SVASFKGYLQ LGNPEEYDSA
     LRIPVERYYR TYPAKPPTAS SFVLRSEPEA GQEEAESSEA AAATQKGSQS GDAGLTTVRT
     MRTYQVEDKS APGGKIDIER DELAKGYEYG RTAVHISETD ENITILDTFA GLELMGFIQT
     DQYQRYMHMS NTNIIIAQRA NDKAALALSS FIHALFELEC YAVARLVVKE NKPPVIVLLA
     PSIEPEYECL LEVQLPFAED VRTYRFPPLD KVITVSGKVV TQHRNLPSDD LLDVMGKYVN
     SMELVDADED GDPVETFPID DSYSPVLHRI DAAIRARAIH PDQPIPPPSE RLTKFSHPRE
     DLIEKSQKHL EKLIEIADVK KVPPKAKGRK RTRETEKPLS GLDVDALLHH EKRVKISPNN
     AIPEFKQTLA QAENIEAIKD ATKQMMVIVE DQIKHSLGNA NYDRVIEALG TMRDELVSYE
     EPASYNDFLG QLKDKLLQEK LGGDRQELWW LVRRNKLGLV TQRESDQSRV TDTEAKEVSL
     TKMKE
 
 
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