ID   CSHA_BACC1              Reviewed;         525 AA.
AC   Q73EU1;
DT   06-MAR-2007, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 108.
DE   RecName: Full=DEAD-box ATP-dependent RNA helicase CshA {ECO:0000255|HAMAP-Rule:MF_01493};
DE            EC=3.6.4.13 {ECO:0000255|HAMAP-Rule:MF_01493};
GN   Name=cshA {ECO:0000255|HAMAP-Rule:MF_01493}; OrderedLocusNames=BCE_0267;
OS   Bacillus cereus (strain ATCC 10987 / NRS 248).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=222523;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 10987 / NRS 248;
RX   PubMed=14960714; DOI=10.1093/nar/gkh258;
RA   Rasko D.A., Ravel J., Oekstad O.A., Helgason E., Cer R.Z., Jiang L.,
RA   Shores K.A., Fouts D.E., Tourasse N.J., Angiuoli S.V., Kolonay J.F.,
RA   Nelson W.C., Kolstoe A.-B., Fraser C.M., Read T.D.;
RT   "The genome sequence of Bacillus cereus ATCC 10987 reveals metabolic
RT   adaptations and a large plasmid related to Bacillus anthracis pXO1.";
RL   Nucleic Acids Res. 32:977-988(2004).
CC   -!- FUNCTION: DEAD-box RNA helicase possibly involved in RNA degradation.
CC       Unwinds dsRNA in both 5'- and 3'-directions, has RNA-dependent ATPase
CC       activity. {ECO:0000255|HAMAP-Rule:MF_01493}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O = ADP + H(+) + phosphate; Xref=Rhea:RHEA:13065,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=3.6.4.13;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01493};
CC   -!- SUBUNIT: Oligomerizes, may be a member of the RNA degradosome.
CC       {ECO:0000255|HAMAP-Rule:MF_01493}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01493}.
CC   -!- SIMILARITY: Belongs to the DEAD box helicase family. CshA subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01493}.
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DR   EMBL; AE017194; AAS39203.1; -; Genomic_DNA.
DR   RefSeq; WP_000206582.1; NC_003909.8.
DR   AlphaFoldDB; Q73EU1; -.
DR   SMR; Q73EU1; -.
DR   DNASU; 2752637; -.
DR   EnsemblBacteria; AAS39203; AAS39203; BCE_0267.
DR   GeneID; 59156618; -.
DR   GeneID; 64201247; -.
DR   KEGG; bca:BCE_0267; -.
DR   HOGENOM; CLU_003041_21_0_9; -.
DR   OMA; EHKDGQR; -.
DR   Proteomes; UP000002527; Chromosome.
DR   GO; GO:0043590; C:bacterial nucleoid; ISS:UniProtKB.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; ISS:UniProtKB.
DR   GO; GO:0016887; F:ATP hydrolysis activity; IEA:RHEA.
DR   GO; GO:0003723; F:RNA binding; ISS:UniProtKB.
DR   GO; GO:0003724; F:RNA helicase activity; ISS:UniProtKB.
DR   GO; GO:0006401; P:RNA catabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0010501; P:RNA secondary structure unwinding; IEA:InterPro.
DR   Gene3D; 3.40.50.300; -; 2.
DR   HAMAP; MF_01493; DEAD_helicase_CshA; 1.
DR   InterPro; IPR011545; DEAD/DEAH_box_helicase_dom.
DR   InterPro; IPR030880; DEAD_helicase_CshA.
DR   InterPro; IPR014001; Helicase_ATP-bd.
DR   InterPro; IPR001650; Helicase_C.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR000629; RNA-helicase_DEAD-box_CS.
DR   InterPro; IPR014014; RNA_helicase_DEAD_Q_motif.
DR   Pfam; PF00270; DEAD; 1.
DR   Pfam; PF00271; Helicase_C; 1.
DR   SMART; SM00487; DEXDc; 1.
DR   SMART; SM00490; HELICc; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   PROSITE; PS00039; DEAD_ATP_HELICASE; 1.
DR   PROSITE; PS51192; HELICASE_ATP_BIND_1; 1.
DR   PROSITE; PS51194; HELICASE_CTER; 1.
DR   PROSITE; PS51195; Q_MOTIF; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Helicase; Hydrolase; Nucleotide-binding;
KW   RNA-binding; Stress response.
FT   CHAIN           1..525
FT                   /note="DEAD-box ATP-dependent RNA helicase CshA"
FT                   /id="PRO_0000280050"
FT   DOMAIN          33..203
FT                   /note="Helicase ATP-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01493"
FT   DOMAIN          214..374
FT                   /note="Helicase C-terminal"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01493"
FT   REGION          428..525
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOTIF           2..30
FT                   /note="Q motif"
FT   MOTIF           151..154
FT                   /note="DEAD box"
FT   COMPBIAS        459..500
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         46..53
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01493"
SQ   SEQUENCE   525 AA;  58583 MW;  1E3A8A3DB343AB11 CRC64;
     MTTFRELGLS DSLLQSVESM GFEEATPIQA ETIPHALQGK DIIGQAQTGT GKTAAFGLPL
     LDKVDTHKES VQGIVIAPTR ELAIQVGEEL YKIGKHKRVR ILPIYGGQDI NRQIRALKKH
     PHIIVGTPGR ILDHINRKTL RLQNVETVVL DEADEMLNMG FIEDIEAILT DVPETHQTLL
     FSATMPDPIR RIAERFMTEP QHIKVKAKEV TMPNIQQFYL EVQEKKKFDV LTRLLDIQSP
     ELAIVFGRTK RRVDELSEAL NLRGYAAEGI HGDLTQAKRM SVLRKFKEGS IEVLVATDVA
     ARGLDISGVT HVYNFDIPQD PESYVHRIGR TGRAGKKGIA MLFVTPRESG QLKNIERTTK
     RKMDRMDAPT LDEALEGQQR LIAEKLQNTI ENENLAYYKR IAEEMLEEND SVTVVAAALK
     MMTKEPDTTP IALTSEPPVV ARGGGSKKRG GNGGGYRDGN RNRSRDGRGG DGRNRDRNRD
     GRNRDGNRDR NRDGGNRGRR GEGQGRPGSS NGRGERKHHS RKPQA