ID   DNLJ_ECO55              Reviewed;         671 AA.
AC   B7LCF6;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   03-AUG-2022, entry version 75.
DE   RecName: Full=DNA ligase {ECO:0000255|HAMAP-Rule:MF_01588};
DE            EC=6.5.1.2 {ECO:0000255|HAMAP-Rule:MF_01588};
DE   AltName: Full=Polydeoxyribonucleotide synthase [NAD(+)] {ECO:0000255|HAMAP-Rule:MF_01588};
GN   Name=ligA {ECO:0000255|HAMAP-Rule:MF_01588};
GN   OrderedLocusNames=EC55989_2701;
OS   Escherichia coli (strain 55989 / EAEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=585055;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=55989 / EAEC;
RX   PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA   Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA   Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA   Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA   Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA   Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA   Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA   Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT   "Organised genome dynamics in the Escherichia coli species results in
RT   highly diverse adaptive paths.";
RL   PLoS Genet. 5:E1000344-E1000344(2009).
CC   -!- FUNCTION: DNA ligase that catalyzes the formation of phosphodiester
CC       linkages between 5'-phosphoryl and 3'-hydroxyl groups in double-
CC       stranded DNA using NAD as a coenzyme and as the energy source for the
CC       reaction. It is essential for DNA replication and repair of damaged
CC       DNA. {ECO:0000255|HAMAP-Rule:MF_01588}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=NAD(+) + (deoxyribonucleotide)n-3'-hydroxyl + 5'-phospho-
CC         (deoxyribonucleotide)m = (deoxyribonucleotide)n+m + AMP + beta-
CC         nicotinamide D-nucleotide.; EC=6.5.1.2; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01588};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01588};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01588};
CC   -!- SIMILARITY: Belongs to the NAD-dependent DNA ligase family. LigA
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_01588}.
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DR   EMBL; CU928145; CAU98567.1; -; Genomic_DNA.
DR   RefSeq; WP_000443665.1; NC_011748.1.
DR   AlphaFoldDB; B7LCF6; -.
DR   SMR; B7LCF6; -.
DR   EnsemblBacteria; CAU98567; CAU98567; EC55989_2701.
DR   GeneID; 66673718; -.
DR   KEGG; eck:EC55989_2701; -.
DR   HOGENOM; CLU_007764_2_1_6; -.
DR   OMA; HDVEHEI; -.
DR   Proteomes; UP000000746; Chromosome.
DR   GO; GO:0003677; F:DNA binding; IEA:InterPro.
DR   GO; GO:0003911; F:DNA ligase (NAD+) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0006281; P:DNA repair; IEA:UniProtKB-KW.
DR   GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR   CDD; cd00114; LIGANc; 1.
DR   Gene3D; 2.40.50.140; -; 1.
DR   Gene3D; 3.40.50.10190; -; 1.
DR   HAMAP; MF_01588; DNA_ligase_A; 1.
DR   InterPro; IPR001357; BRCT_dom.
DR   InterPro; IPR036420; BRCT_dom_sf.
DR   InterPro; IPR041663; DisA/LigA_HHH.
DR   InterPro; IPR018239; DNA_ligase_AS.
DR   InterPro; IPR033136; DNA_ligase_CS.
DR   InterPro; IPR001679; DNAligase.
DR   InterPro; IPR013839; DNAligase_adenylation.
DR   InterPro; IPR013840; DNAligase_N.
DR   InterPro; IPR003583; Hlx-hairpin-Hlx_DNA-bd_motif.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR004150; NAD_DNA_ligase_OB.
DR   InterPro; IPR010994; RuvA_2-like.
DR   InterPro; IPR004149; Znf_DNAligase_C4.
DR   Pfam; PF00533; BRCT; 1.
DR   Pfam; PF01653; DNA_ligase_aden; 1.
DR   Pfam; PF03120; DNA_ligase_OB; 1.
DR   Pfam; PF03119; DNA_ligase_ZBD; 1.
DR   Pfam; PF12826; HHH_2; 1.
DR   PIRSF; PIRSF001604; LigA; 1.
DR   SMART; SM00292; BRCT; 1.
DR   SMART; SM00278; HhH1; 4.
DR   SMART; SM00532; LIGANc; 1.
DR   SUPFAM; SSF47781; SSF47781; 1.
DR   SUPFAM; SSF50249; SSF50249; 1.
DR   SUPFAM; SSF52113; SSF52113; 1.
DR   TIGRFAMs; TIGR00575; dnlj; 1.
DR   PROSITE; PS50172; BRCT; 1.
DR   PROSITE; PS01055; DNA_LIGASE_N1; 1.
DR   PROSITE; PS01056; DNA_LIGASE_N2; 1.
PE   3: Inferred from homology;
KW   DNA damage; DNA repair; DNA replication; Ligase; Magnesium; Manganese;
KW   Metal-binding; NAD; Zinc.
FT   CHAIN           1..671
FT                   /note="DNA ligase"
FT                   /id="PRO_0000380370"
FT   DOMAIN          593..671
FT                   /note="BRCT"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   ACT_SITE        115
FT                   /note="N6-AMP-lysine intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         32..36
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         81..82
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         113
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         136
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         173
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         290
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         314
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         408
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         411
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         426
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         432
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
SQ   SEQUENCE   671 AA;  73664 MW;  DD921EA4D9F25182 CRC64;
     MESIEQQLTE LRTTLRHHEY LYHVMDAPEI PDAEYDRLMR ELRELETKHP ELITPDSPTQ
     RVGAAPLAAF SQIRHEVPML SLDNVFDEES FLAFNKRVQD RLKNNEKVTW CCELKLDGLA
     VSILYENGVL VSAATRGDGT TGEDITSNVR TIRAIPLKLH GENIPARLEV RGEVFLPQAG
     FEKINEDARR TGGKVFANPR NAAAGSLRQL DPRITAKRPL TFFCYGVGVL EGGELPDTHL
     GRLLQFKKWG LPVSDRVTLC ESAEEVLAFY HKVEEDRPTL GFDIDGVVIK VNSLEQQEQL
     GFVARAPRWA VAFKFPAQEQ MTFVRDVEFQ VGRTGAITPV ARLEPVHVAG VLVSNATLHN
     ADEIERLGLR IGDKVVIRRA GDVIPQVVNV VLSERPEDTR EVVFPTHCPV CGSDVERVEG
     EAVARCTGGL ICGAQRKESL KHFVSRRAMD VDGMGDKIID QLVEKEYVHT PADLFKLTAG
     KLTGLERMGP KSAQNVVNAL EKAKETTFAR FLYALGIREV GEATAAGLAA YFGTLEALEA
     ASIEELQKVP DVGIVVASHV HNFFAEESNR NVISELLAEG VHWPAPIVIN AEEIDSPFAG
     KTVVLTGSLS QMSRDDAKAR LVELGAKVAG SVSKKTDLVI AGEAAGSKLA KAQELGIEVI
     DEAEMLRLLG S