ID   DNLJ_STRPN              Reviewed;         652 AA.
AC   Q97QT2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2001, sequence version 1.
DT   03-AUG-2022, entry version 126.
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}; OrderedLocusNames=SP_1117;
OS   Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=170187;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-334 / TIGR4;
RX   PubMed=11463916; DOI=10.1126/science.1061217;
RA   Tettelin H., Nelson K.E., Paulsen I.T., Eisen J.A., Read T.D.,
RA   Peterson S.N., Heidelberg J.F., DeBoy R.T., Haft D.H., Dodson R.J.,
RA   Durkin A.S., Gwinn M.L., Kolonay J.F., Nelson W.C., Peterson J.D.,
RA   Umayam L.A., White O., Salzberg S.L., Lewis M.R., Radune D.,
RA   Holtzapple E.K., Khouri H.M., Wolf A.M., Utterback T.R., Hansen C.L.,
RA   McDonald L.A., Feldblyum T.V., Angiuoli S.V., Dickinson T., Hickey E.K.,
RA   Holt I.E., Loftus B.J., Yang F., Smith H.O., Venter J.C., Dougherty B.A.,
RA   Morrison D.A., Hollingshead S.K., Fraser C.M.;
RT   "Complete genome sequence of a virulent isolate of Streptococcus
RT   pneumoniae.";
RL   Science 293:498-506(2001).
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; AE005672; AAK75228.1; -; Genomic_DNA.
DR   PIR; C95129; C95129.
DR   RefSeq; WP_001042585.1; NZ_AKVY01000001.1.
DR   AlphaFoldDB; Q97QT2; -.
DR   SMR; Q97QT2; -.
DR   STRING; 170187.SP_1117; -.
DR   EnsemblBacteria; AAK75228; AAK75228; SP_1117.
DR   KEGG; spn:SP_1117; -.
DR   eggNOG; COG0272; Bacteria.
DR   OMA; HDVEHEI; -.
DR   PhylomeDB; Q97QT2; -.
DR   BioCyc; SPNE170187:G1FZB-1142-MON; -.
DR   Proteomes; UP000000585; 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; 2.
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..652
FT                   /note="DNA ligase"
FT                   /id="PRO_0000313454"
FT   DOMAIN          577..652
FT                   /note="BRCT"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   ACT_SITE        109
FT                   /note="N6-AMP-lysine intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         29..33
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         78..79
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         107
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         130
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         164
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         278
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         302
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         395
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         398
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         413
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
FT   BINDING         418
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01588"
SQ   SEQUENCE   652 AA;  72189 MW;  9527CBD5827455D6 CRC64;
     MNKRMNELVA LLNRYATEYY TSDNPSVSDS EYDRLYRELV ELETAYPEQV LADSPTHRVG
     GKVLDGFEKY SHQYPLYSLQ DAFSCEELDA FDARVRKEVA HPTYICELKI DGLSISLTYE
     KGILVAGVTR GDGSIGENIT ENLKRVKDIP LTLPEELDIT VRGECYMPRA SFDQVNQARQ
     ENGEPEFANP RNAAAGTLRQ LDTAVVAKRN LATFLYQEAS PSTRDSQEKG LKYLEQLGFV
     VNPKRILAEN IDEIWNFIQE VGQERENLPY DIDGVVIKVN DLASQEELGF TVKAPKWAVA
     YKFPAEEKEA QLLSVDWTVG RTGVVTPTAN LTPVQLAGTT VSRATLHNVD YIAEKDIRKD
     DTVIVYKAGD IIPAVLRVVE SKRVSEEKLD IPTNCPSCNS DLLHFEDEVA LRCINPRCPA
     QIMEGLIHFA SRDAMNITGL GPSIVEKLFA ANLVKDVADI YRLQEEDFLL LEGVKEKSAA
     KLYQAIQASK ENSAEKLLFG LGIRHVGSKV SQLLLQYFHS IENLSQADSE EVASIESLGG
     VIAKSLQTYF ATEGSEILLR ELKETGVNLD YKGQTVVADA ALSGLTVVLT GKLERLKRSE
     AKSKLESLGA KVTGSISKKT DLVVVGADAG SKLQKAQELG IQVRDEAWLE SL