ID   LIGB_ECOK1              Reviewed;         560 AA.
AC   A1AHH8;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   15-JAN-2008, sequence version 2.
DT   03-AUG-2022, entry version 74.
DE   RecName: Full=DNA ligase B {ECO:0000255|HAMAP-Rule:MF_01587};
DE            EC=6.5.1.2 {ECO:0000255|HAMAP-Rule:MF_01587};
DE   AltName: Full=Polydeoxyribonucleotide synthase [NAD(+)] B {ECO:0000255|HAMAP-Rule:MF_01587};
GN   Name=ligB {ECO:0000255|HAMAP-Rule:MF_01587}; OrderedLocusNames=Ecok1_36240;
GN   ORFNames=APECO1_2814;
OS   Escherichia coli O1:K1 / APEC.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=405955;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17293413; DOI=10.1128/jb.01726-06;
RA   Johnson T.J., Kariyawasam S., Wannemuehler Y., Mangiamele P., Johnson S.J.,
RA   Doetkott C., Skyberg J.A., Lynne A.M., Johnson J.R., Nolan L.K.;
RT   "The genome sequence of avian pathogenic Escherichia coli strain O1:K1:H7
RT   shares strong similarities with human extraintestinal pathogenic E. coli
RT   genomes.";
RL   J. Bacteriol. 189:3228-3236(2007).
CC   -!- FUNCTION: Catalyzes the formation of phosphodiester linkages between
CC       5'-phosphoryl and 3'-hydroxyl groups in double-stranded DNA using NAD
CC       as a coenzyme and as the energy source for the reaction.
CC       {ECO:0000255|HAMAP-Rule:MF_01587}.
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_01587};
CC   -!- SIMILARITY: Belongs to the NAD-dependent DNA ligase family. LigB
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_01587}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABJ03118.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000468; ABJ03118.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_001363072.1; NC_008563.1.
DR   AlphaFoldDB; A1AHH8; -.
DR   SMR; A1AHH8; -.
DR   EnsemblBacteria; ABJ03118; ABJ03118; APECO1_2814.
DR   KEGG; ecv:APECO1_2814; -.
DR   HOGENOM; CLU_489786_0_0_6; -.
DR   Proteomes; UP000008216; Chromosome.
DR   GO; GO:0003911; F:DNA ligase (NAD+) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006281; P:DNA repair; IEA:UniProtKB-KW.
DR   GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR   Gene3D; 2.40.50.140; -; 1.
DR   HAMAP; MF_01587; DNA_ligase_B; 1.
DR   InterPro; IPR018239; DNA_ligase_AS.
DR   InterPro; IPR020923; DNA_ligase_B.
DR   InterPro; IPR033136; DNA_ligase_CS.
DR   InterPro; IPR013839; DNAligase_adenylation.
DR   InterPro; IPR013840; DNAligase_N.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR004150; NAD_DNA_ligase_OB.
DR   InterPro; IPR010994; RuvA_2-like.
DR   Pfam; PF01653; DNA_ligase_aden; 1.
DR   Pfam; PF03120; DNA_ligase_OB; 1.
DR   SMART; SM00532; LIGANc; 1.
DR   SUPFAM; SSF47781; SSF47781; 1.
DR   SUPFAM; SSF50249; SSF50249; 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; NAD.
FT   CHAIN           1..560
FT                   /note="DNA ligase B"
FT                   /id="PRO_0000313539"
FT   ACT_SITE        124
FT                   /note="N6-AMP-lysine intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01587"
SQ   SEQUENCE   560 AA;  63228 MW;  E3D051250C9674D0 CRC64;
     MKVWMAILIS ILCWQSSAWA VCPAWSPARA QEEISRLQQQ IKQWDDDYWK EGKSEVEDGV
     YDQLSARLTQ WQRCFGNETR DVMMPPLNGA VMHPVAHTGV RKMADKNALS LWMRERSDLW
     VQPKVDGVAV TLVYRDGKLN KAISRGNGLK GEDWTQKVRL ISAVPQTVSG PLANSTLQGE
     IFLQREGHIQ QQMGGINARA KVAGLMMRQG NSDTLNSLAV FVWAWPDGPH LMTDRLKDLA
     TAGFTLTQTY TRAVKNADEV AHVRNEWWKA KLPFVTDGVV VRAAKEPESR HWLPGQAEWL
     VAWKYQPVAQ VAEVKAIQFA VGKSGKISVV ASLAPVMLDD KKVQRVNIGS VRRWQEWDIA
     PGDQILVSLA GQGIPRIDDV VWRGAERTKP TPPENRFNSL TCYFASDVCQ EQFISRLVWL
     GSKQVLGLDG IGEAGWRALH QTHRFEHIFS WLLLTPEQLQ NTPGIAKSKS AQLWHQFNLA
     RQQPFTRWVM AMGIPLTRAA LNASDERSWS QLLFSTEQFW QQQPGTGSGR ARQVIEWKEN
     AQIKKLGSWL AAQQITGFEP