ID   DISA_THENN              Reviewed;         352 AA.
AC   B9K6S9;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 68.
DE   RecName: Full=DNA integrity scanning protein DisA {ECO:0000255|HAMAP-Rule:MF_01438};
DE   AltName: Full=Cyclic di-AMP synthase {ECO:0000255|HAMAP-Rule:MF_01438};
DE            Short=c-di-AMP synthase {ECO:0000255|HAMAP-Rule:MF_01438};
DE   AltName: Full=Diadenylate cyclase {ECO:0000255|HAMAP-Rule:MF_01438};
DE            EC=2.7.7.85 {ECO:0000255|HAMAP-Rule:MF_01438};
GN   Name=disA {ECO:0000255|HAMAP-Rule:MF_01438}; OrderedLocusNames=CTN_0486;
OS   Thermotoga neapolitana (strain ATCC 49049 / DSM 4359 / NBRC 107923 / NS-E).
OC   Bacteria; Thermotogae; Thermotogales; Thermotogaceae; Thermotoga.
OX   NCBI_TaxID=309803;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 49049 / DSM 4359 / NBRC 107923 / NS-E;
RA   Lim S.K., Kim J.S., Cha S.H., Park B.C., Lee D.S., Tae H.S., Kim S.-J.,
RA   Kim J.J., Park K.J., Lee S.Y.;
RT   "The genome sequence of the hyperthermophilic bacterium Thermotoga
RT   neapolitana.";
RL   Submitted (NOV-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Participates in a DNA-damage check-point. DisA forms globular
CC       foci that rapidly scan along the chromosomes searching for lesions.
CC       {ECO:0000255|HAMAP-Rule:MF_01438}.
CC   -!- FUNCTION: Has also diadenylate cyclase activity, catalyzing the
CC       condensation of 2 ATP molecules into cyclic di-AMP (c-di-AMP). c-di-AMP
CC       likely acts as a signaling molecule that may couple DNA integrity with
CC       a cellular process. {ECO:0000255|HAMAP-Rule:MF_01438}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 ATP = 3',3'-c-di-AMP + 2 diphosphate; Xref=Rhea:RHEA:35655,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:71500; EC=2.7.7.85;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01438};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01438};
CC   -!- SUBUNIT: Homooctamer. {ECO:0000255|HAMAP-Rule:MF_01438}.
CC   -!- SIMILARITY: Belongs to the DisA family. {ECO:0000255|HAMAP-
CC       Rule:MF_01438}.
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DR   EMBL; CP000916; ACM22662.1; -; Genomic_DNA.
DR   RefSeq; WP_015918981.1; NC_011978.1.
DR   AlphaFoldDB; B9K6S9; -.
DR   SMR; B9K6S9; -.
DR   STRING; 309803.CTN_0486; -.
DR   EnsemblBacteria; ACM22662; ACM22662; CTN_0486.
DR   KEGG; tna:CTN_0486; -.
DR   eggNOG; COG1623; Bacteria.
DR   HOGENOM; CLU_787128_0_0_0; -.
DR   OMA; VVRDYVP; -.
DR   Proteomes; UP000000445; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0106408; F:diadenylate cyclase activity; IEA:UniProtKB-EC.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006281; P:DNA repair; IEA:UniProtKB-UniRule.
DR   GO; GO:0019932; P:second-messenger-mediated signaling; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.20.1260.110; -; 1.
DR   Gene3D; 3.40.1700.10; -; 1.
DR   HAMAP; MF_01438; DisA; 1.
DR   InterPro; IPR041663; DisA/LigA_HHH.
DR   InterPro; IPR038331; DisA_sf.
DR   InterPro; IPR036888; DNA_integrity_DisA_N_sf.
DR   InterPro; IPR018906; DNA_integrity_scan_DisA_link.
DR   InterPro; IPR003390; DNA_integrity_scan_DisA_N.
DR   InterPro; IPR023763; DNA_integrity_scanning_protein.
DR   InterPro; IPR010994; RuvA_2-like.
DR   Pfam; PF02457; DAC; 1.
DR   Pfam; PF10635; DisA-linker; 1.
DR   Pfam; PF12826; HHH_2; 1.
DR   SUPFAM; SSF143597; SSF143597; 1.
DR   SUPFAM; SSF47781; SSF47781; 1.
DR   PROSITE; PS51794; DAC; 1.
PE   3: Inferred from homology;
KW   ATP-binding; DNA damage; DNA repair; DNA-binding; Magnesium;
KW   Nucleotide-binding; Nucleotidyltransferase; Transferase.
FT   CHAIN           1..352
FT                   /note="DNA integrity scanning protein DisA"
FT                   /id="PRO_1000184913"
FT   DOMAIN          3..143
FT                   /note="DAC"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01130"
FT   BINDING         71
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01438"
FT   BINDING         89
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01438"
FT   BINDING         102..106
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01438"
SQ   SEQUENCE   352 AA;  39966 MW;  FAC8B3EA6E8B0F29 CRC64;
     MVPQELIEKI KLISPGTELR KALDDIISAN FGALIFLVDD PKKYDDIIQG GFWLDTDFSA
     EKVYELSKMD GAIVLSEDLT RIYYANVHLV PDPTIPTGET GTRHRTAERL AKQTGKVVIA
     VSRRRNIISL YYKNYKYVVN QVDFLISKVT QAISTLEKYK DNFDKLLSDL EVLELENRVT
     LADVVRTLMK GVELLRITEE TRPYIVELGE EGRLARMQLR ELTEDVDDLM VLLIMDYSSD
     EVDEETAQAI LQDFVTRREP SPISISRVLG YDVQQVSQLD DILVSARGYR LLKTAARIPI
     SIGYNVVKMF KTLDQISKAS VEDLKKVEGI GEKRAKAISE SISSLKHRRT SE