ligD

ligD
168

DNA repair polymerase/ ligase in non-homologous end joining DNA repair

Locus
BSU_13400
Molecular weight
70.03 kDa
Isoelectric point
6.65
Protein length
Gene length
Function
non-homologous end joining DNA repair, repair of gapped DNA substrates
Product
DNA repair polymerase/ ligase
Essential
no
Synonyms
ligD, ykoU

Genomic Context

Categories containing this gene/protein

List of homologs in different organisms, belongs to COG3285 (Galperin et al., 2021)

This gene is a member of the following regulons

Gene
Coordinates
1,404,518  1,406,353
Phenotypes of a mutant
sensitivity to ionizing radiation in the stationary phase  PubMed
sensitivity of spores to several DNA-damaging treatments known to cause double strand breaks, such as UV-ray, X-ray, ultrahigh vacuum and wet heat PubMed
a ''ykoV-ligD'' double mutant is sensitive to radiation PubMed
reduced resistance towards electron beams PubMed
The protein
Catalyzed reaction/ biological activity
has inherent polymerization and ligase activities that allow it to fill the short gaps that can arise after realignment of the broken ends and to seal the resulting nicks, contributing to genome stability during the stationary phase and germination
has an intrinsic 5'-2-deoxyribose-5-phosphate (dRP) lyase activity located at the N-terminal ligase domain PubMed
ATP + (deoxyribonucleotide)(n)-3'-hydroxyl + 5'-phospho-(deoxyribonucleotide)(m) --> (deoxyribonucleotide)(n+m) + AMP + diphosphate (according to UniProt)
Protein family
N-terminal part: LigD polymerase family (single member, according to UniProt)
C-terminal part: ATP-dependent DNA ligase family (with LigB, according to UniProt)
N-terminal DNA ligase catalytic domain (aa 1 - 331) linked to a C-terminal polymerase domain (aa 332 - 611) PubMed
Structure
6NHX (PDB) (N-terminal ligase domain, from Mycobacterium tuberculosis, 26.3% identity) PubMed
5OP0 (PDB) (C-terminal polymerase domain, from Mycobacterium smegmatis, 30% identity) PubMed
Expression and Regulation
Operons
Genes
Description
Regulation
expressed during sporulation in the forespore (SigG, SpoVT) PubMed
Regulatory mechanism
SpoVT: activation, PubMed, in spoVT regulon
Sigma factors
SigG: sigma factor, PubMed, in sigG regulon
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ykoVligD

2025-03-20 07:14:23

ghost

216

7fcc8aee83f81918f6eb01c909915f020ead37c2

8BDE381CB52702FA257381283FE46A01B66ABB9F

Biological materials
Mutant
MGNA-A778 (ykoU::erm), available at the NBRP B. subtilis, Japan
BP141 (Δ''ykoV-ligD::kan'') available in Fabian Commichau's and Jörg Stülke's labs PubMed
BP142 (Δ''dgcW-ykoV-ligD::kan'') available in Fabian Commichau's lab
BKE13400 (ΔligD::erm  trpC2) available at BGSCPubMed, upstream reverse: _UP1_CGGCTGCATGGTAAACGCCA,  downstream forward: _UP4_TGACTAATGAAGTCAGCTCT
BKK13400 (ΔligD::kan  trpC2) available at BGSCPubMed, upstream reverse: _UP1_CGGCTGCATGGTAAACGCCA,  downstream forward: _UP4_TGACTAATGAAGTCAGCTCT
References
Reviews
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Original Publications
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127CB0930A2D96B18D9261180028818F158C68CB

Page visits: 4793

Time of last update: 2025-04-08 16:36:38

Author of last update: Jstuelk