ID   DISA_MYCTA              Reviewed;         358 AA.
AC   A5U8R1;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   10-JUL-2007, sequence version 1.
DT   03-AUG-2022, entry version 78.
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=MRA_3625;
OS   Mycobacterium tuberculosis (strain ATCC 25177 / H37Ra).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=419947;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25177 / H37Ra;
RX   PubMed=18584054; DOI=10.1371/journal.pone.0002375;
RA   Zheng H., Lu L., Wang B., Pu S., Zhang X., Zhu G., Shi W., Zhang L.,
RA   Wang H., Wang S., Zhao G., Zhang Y.;
RT   "Genetic basis of virulence attenuation revealed by comparative genomic
RT   analysis of Mycobacterium tuberculosis strain H37Ra versus H37Rv.";
RL   PLoS ONE 3:E2375-E2375(2008).
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; CP000611; ABQ75411.1; -; Genomic_DNA.
DR   RefSeq; WP_003900111.1; NZ_CP016972.1.
DR   AlphaFoldDB; A5U8R1; -.
DR   SMR; A5U8R1; -.
DR   STRING; 419947.MRA_3625; -.
DR   EnsemblBacteria; ABQ75411; ABQ75411; MRA_3625.
DR   KEGG; mra:MRA_3625; -.
DR   eggNOG; COG1623; Bacteria.
DR   HOGENOM; CLU_787128_0_0_11; -.
DR   OMA; VVRDYVP; -.
DR   OrthoDB; 1139866at2; -.
DR   Proteomes; UP000001988; 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; 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   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..358
FT                   /note="DNA integrity scanning protein DisA"
FT                   /id="PRO_1000017374"
FT   DOMAIN          6..144
FT                   /note="DAC"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01130"
FT   BINDING         73
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01438"
FT   BINDING         91
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01438"
FT   BINDING         104..108
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01438"
SQ   SEQUENCE   358 AA;  39031 MW;  2D7E56E7C82E5F82 CRC64;
     MHAVTRPTLR EAVARLAPGT GLRDGLERIL RGRTGALIVL GHDENVEAIC DGGFSLDVRY
     AATRLRELCK MDGAVVLSTD GSRIVRANVQ LVPDPSIPTD ESGTRHRSAE RAAIQTGYPV
     ISVSHSMNIV TVYVRGERHV LTDSATILSR ANQAIATLER YKTRLDEVSR QLSRAEIEDF
     VTLRDVMTVV QRLELVRRIG LVIDYDVVEL GTDGRQLRLQ LDELLGGNDT ARELIVRDYH
     ANPEPPSTGQ INATLDELDA LSDGDLLDFT ALAKVFGYPT TTEAQDSTLS PRGYRAMAGI
     PRLQFAHADL LVRAFGTLQG LLAASAGDLQ SVDGIGAMWA RHVREGLSQL AESTISDQ