ID   DPS_SALNS               Reviewed;         167 AA.
AC   B4T089;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   03-AUG-2022, entry version 71.
DE   RecName: Full=DNA protection during starvation protein {ECO:0000255|HAMAP-Rule:MF_01441};
DE            EC=1.16.-.- {ECO:0000255|HAMAP-Rule:MF_01441};
GN   Name=dps {ECO:0000255|HAMAP-Rule:MF_01441};
GN   OrderedLocusNames=SNSL254_A0896;
OS   Salmonella newport (strain SL254).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=423368;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SL254;
RX   PubMed=21602358; DOI=10.1128/jb.00297-11;
RA   Fricke W.F., Mammel M.K., McDermott P.F., Tartera C., White D.G.,
RA   Leclerc J.E., Ravel J., Cebula T.A.;
RT   "Comparative genomics of 28 Salmonella enterica isolates: evidence for
RT   CRISPR-mediated adaptive sublineage evolution.";
RL   J. Bacteriol. 193:3556-3568(2011).
CC   -!- FUNCTION: During stationary phase, binds the chromosome non-
CC       specifically, forming a highly ordered and stable dps-DNA co-crystal
CC       within which chromosomal DNA is condensed and protected from diverse
CC       damages. It protects DNA from oxidative damage by sequestering
CC       intracellular Fe(2+) ion and storing it in the form of Fe(3+)
CC       oxyhydroxide mineral, which can be released after reduction. One
CC       hydrogen peroxide oxidizes two Fe(2+) ions, which prevents hydroxyl
CC       radical production by the Fenton reaction. {ECO:0000255|HAMAP-
CC       Rule:MF_01441}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 Fe(2+) + 2 H(+) + H2O2 = 2 Fe(3+) + 2 H2O;
CC         Xref=Rhea:RHEA:48712, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16240, ChEBI:CHEBI:29033, ChEBI:CHEBI:29034;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01441};
CC   -!- SUBUNIT: Homododecamer. The 12 subunits form a hollow sphere into which
CC       the mineral iron core of up to 500 Fe(3+) can be deposited.
CC       {ECO:0000255|HAMAP-Rule:MF_01441}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01441}.
CC   -!- SIMILARITY: Belongs to the Dps family. {ECO:0000255|HAMAP-
CC       Rule:MF_01441}.
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DR   EMBL; CP001113; ACF62219.1; -; Genomic_DNA.
DR   RefSeq; WP_000100805.1; NZ_CCMR01000003.1.
DR   AlphaFoldDB; B4T089; -.
DR   SMR; B4T089; -.
DR   EnsemblBacteria; ACF62219; ACF62219; SNSL254_A0896.
DR   KEGG; see:SNSL254_A0896; -.
DR   HOGENOM; CLU_098183_1_2_6; -.
DR   OMA; DDYSIGR; -.
DR   Proteomes; UP000008824; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0008199; F:ferric iron binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016722; F:oxidoreductase activity, acting on metal ions; IEA:InterPro.
DR   GO; GO:0006879; P:cellular iron ion homeostasis; IEA:UniProtKB-KW.
DR   GO; GO:0030261; P:chromosome condensation; IEA:UniProtKB-KW.
DR   CDD; cd01043; DPS; 1.
DR   Gene3D; 1.20.1260.10; -; 1.
DR   HAMAP; MF_01441; Dps; 1.
DR   InterPro; IPR002177; DPS_DNA-bd.
DR   InterPro; IPR023188; DPS_DNA-bd_CS.
DR   InterPro; IPR023067; Dps_gammaproteobac.
DR   InterPro; IPR012347; Ferritin-like.
DR   InterPro; IPR009078; Ferritin-like_SF.
DR   InterPro; IPR008331; Ferritin_DPS_dom.
DR   PANTHER; PTHR42932; PTHR42932; 1.
DR   Pfam; PF00210; Ferritin; 1.
DR   PIRSF; PIRSF005900; Dps; 1.
DR   PRINTS; PR01346; HELNAPAPROT.
DR   SUPFAM; SSF47240; SSF47240; 1.
DR   PROSITE; PS00818; DPS_1; 1.
DR   PROSITE; PS00819; DPS_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; DNA condensation; DNA-binding; Iron; Iron storage;
KW   Metal-binding; Oxidoreductase.
FT   CHAIN           1..167
FT                   /note="DNA protection during starvation protein"
FT                   /id="PRO_1000145914"
FT   BINDING         51
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01441"
FT   BINDING         78
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01441"
FT   BINDING         82
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01441"
SQ   SEQUENCE   167 AA;  18717 MW;  C5732F4D1F667C14 CRC64;
     MSTAKLVKTK ASNLLYTRND VSESDKKATV ELLNRQVIQF IDLSLITKQA HWNMRGANFI
     AVHEMLDGFR TALTDHLDTM AERAVQLGGV ALGTTQVINS KTPLKSYPLD IHNVQDHLKE
     LADRYAVVAN DVRKAIGEAK DEDTADIFTA ASRDLDKFLW FIESNIE