UniProtKB - P9WKD9 (KU_MYCTU)
Protein
Non-homologous end joining protein Ku
Gene
mku
Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Status
Functioni
With LigD forms a non-homologous end joining (NHEJ) repair enzyme. Binds linear dsDNA with 5'- and 3'-overhangs but not closed circular dsDNA nor ssDNA. One dimer binds for every 30 bp. Recruits and stimulates the ligase activity of LigD but not of T4 ligase or a human ligase complex (LIG4/XRCC4). Attenuates the 3'- to 5'-exonuclease activity of LigD. Stimulates the template-directed addition of dNTPs by LigD on 5'-overhangs and nuclease activity on 3'-overhangs.4 Publications
GO - Molecular functioni
- double-stranded DNA binding Source: UniProtKB
GO - Biological processi
- DNA recombination Source: UniProtKB-KW
- double-strand break repair via nonhomologous end joining Source: UniProtKB
- positive regulation of ligase activity Source: UniProtKB
Keywordsi
Molecular function | DNA-binding |
Biological process | DNA damage, DNA recombination, DNA repair |
Enzyme and pathway databases
BioCyci | MTBH37RV:G185E-5092-MONOMER |
Names & Taxonomyi
Protein namesi | Recommended name: Non-homologous end joining protein KuUniRule annotationAlternative name(s): Mt-Ku |
Gene namesi | Name:mku Ordered Locus Names:Rv0937c |
Organismi | Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) |
Taxonomic identifieri | 83332 [NCBI] |
Taxonomic lineagei | Bacteria › Actinobacteria › Corynebacteriales › Mycobacteriaceae › Mycobacterium › Mycobacterium tuberculosis complex › |
Proteomesi |
|
Organism-specific databases
TubercuListi | Rv0937c |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000425945 | 1 – 273 | Non-homologous end joining protein KuAdd BLAST | 273 |
Proteomic databases
PaxDbi | P9WKD9 |
Interactioni
Subunit structurei
Homodimer (Probable).
Interacts with LigD in the absence of DSBs, and with the isolated Pol domain of LigD in the presence of DNA.
Interacts with Sir2, possibly in a trimeric complex with LigD.
UniRule annotationCurated4 PublicationsProtein-protein interaction databases
STRINGi | 83332.Rv0937c |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 10 – 193 | KuUniRule annotationAdd BLAST | 184 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 111 – 273 | Sufficient for interaction with LigDAdd BLAST | 163 |
Sequence similaritiesi
Belongs to the prokaryotic Ku family.UniRule annotation
Phylogenomic databases
eggNOGi | ENOG4105FDF Bacteria COG1273 LUCA |
KOi | K10979 |
OMAi | IWKGAVS |
PhylomeDBi | P9WKD9 |
Family and domain databases
CDDi | cd00789 KU_like, 1 hit |
Gene3Di | 2.40.290.10, 1 hit |
HAMAPi | MF_01875 Prokaryotic_Ku, 1 hit |
InterProi | View protein in InterPro IPR006164 Ku70/Ku80_beta-barrel_dom IPR009187 Prok_Ku IPR016194 SPOC-like_C_dom_sf |
PANTHERi | PTHR41251 PTHR41251, 1 hit |
Pfami | View protein in Pfam PF02735 Ku, 1 hit |
PIRSFi | PIRSF006493 Prok_Ku, 1 hit |
SMARTi | View protein in SMART SM00559 Ku78, 1 hit |
SUPFAMi | SSF100939 SSF100939, 1 hit |
TIGRFAMsi | TIGR02772 Ku_bact, 1 hit |
i Sequence
Sequence statusi: Complete.
P9WKD9-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MRAIWTGSIA FGLVNVPVKV YSATADHDIR FHQVHAKDNG RIRYKRVCEA
60 70 80 90 100
CGEVVDYRDL ARAYESGDGQ MVAITDDDIA SLPEERSREI EVLEFVPAAD
110 120 130 140 150
VDPMMFDRSY FLEPDSKSSK SYVLLAKTLA ETDRMAIVHF TLRNKTRLAA
160 170 180 190 200
LRVKDFGKRE VMMVHTLLWP DEIRDPDFPV LDQKVEIKPA ELKMAGQVVD
210 220 230 240 250
SMADDFNPDR YHDTYQEQLQ ELIDTKLEGG QAFTAEDQPR LLDEPEDVSD
260 270
LLAKLEASVK ARSKANSNVP TPP
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP43685.1 |
PIRi | A70585 |
RefSeqi | NP_215452.1, NC_000962.3 WP_003404795.1, NZ_NVQJ01000001.1 |
Genome annotation databases
EnsemblBacteriai | CCP43685; CCP43685; Rv0937c |
GeneIDi | 885050 |
KEGGi | mtu:Rv0937c mtv:RVBD_0937c |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP43685.1 |
PIRi | A70585 |
RefSeqi | NP_215452.1, NC_000962.3 WP_003404795.1, NZ_NVQJ01000001.1 |
3D structure databases
SMRi | P9WKD9 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 83332.Rv0937c |
Proteomic databases
PaxDbi | P9WKD9 |
Genome annotation databases
EnsemblBacteriai | CCP43685; CCP43685; Rv0937c |
GeneIDi | 885050 |
KEGGi | mtu:Rv0937c mtv:RVBD_0937c |
Organism-specific databases
TubercuListi | Rv0937c |
Phylogenomic databases
eggNOGi | ENOG4105FDF Bacteria COG1273 LUCA |
KOi | K10979 |
OMAi | IWKGAVS |
PhylomeDBi | P9WKD9 |
Enzyme and pathway databases
BioCyci | MTBH37RV:G185E-5092-MONOMER |
Family and domain databases
CDDi | cd00789 KU_like, 1 hit |
Gene3Di | 2.40.290.10, 1 hit |
HAMAPi | MF_01875 Prokaryotic_Ku, 1 hit |
InterProi | View protein in InterPro IPR006164 Ku70/Ku80_beta-barrel_dom IPR009187 Prok_Ku IPR016194 SPOC-like_C_dom_sf |
PANTHERi | PTHR41251 PTHR41251, 1 hit |
Pfami | View protein in Pfam PF02735 Ku, 1 hit |
PIRSFi | PIRSF006493 Prok_Ku, 1 hit |
SMARTi | View protein in SMART SM00559 Ku78, 1 hit |
SUPFAMi | SSF100939 SSF100939, 1 hit |
TIGRFAMsi | TIGR02772 Ku_bact, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | KU_MYCTU | |
Accessioni | P9WKD9Primary (citable) accession number: P9WKD9 Secondary accession number(s): L7N5V9 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 16, 2014 |
Last sequence update: | April 16, 2014 | |
Last modified: | September 18, 2019 | |
This is version 26 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Complete proteome, Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families - Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh
Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh: entries and gene names