ID   EX7S_MAGMM              Reviewed;          70 AA.
AC   A0L6H5;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-DEC-2006, sequence version 1.
DT   25-MAY-2022, entry version 84.
DE   RecName: Full=Exodeoxyribonuclease 7 small subunit {ECO:0000255|HAMAP-Rule:MF_00337};
DE            EC=3.1.11.6 {ECO:0000255|HAMAP-Rule:MF_00337};
DE   AltName: Full=Exodeoxyribonuclease VII small subunit {ECO:0000255|HAMAP-Rule:MF_00337};
DE            Short=Exonuclease VII small subunit {ECO:0000255|HAMAP-Rule:MF_00337};
GN   Name=xseB {ECO:0000255|HAMAP-Rule:MF_00337}; OrderedLocusNames=Mmc1_1050;
OS   Magnetococcus marinus (strain ATCC BAA-1437 / JCM 17883 / MC-1).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Magnetococcales;
OC   Magnetococcaceae; Magnetococcus.
OX   NCBI_TaxID=156889;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1437 / JCM 17883 / MC-1;
RX   PubMed=19465526; DOI=10.1128/aem.02874-08;
RA   Schubbe S., Williams T.J., Xie G., Kiss H.E., Brettin T.S., Martinez D.,
RA   Ross C.A., Schuler D., Cox B.L., Nealson K.H., Bazylinski D.A.;
RT   "Complete genome sequence of the chemolithoautotrophic marine magnetotactic
RT   coccus strain MC-1.";
RL   Appl. Environ. Microbiol. 75:4835-4852(2009).
CC   -!- FUNCTION: Bidirectionally degrades single-stranded DNA into large acid-
CC       insoluble oligonucleotides, which are then degraded further into small
CC       acid-soluble oligonucleotides. {ECO:0000255|HAMAP-Rule:MF_00337}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Exonucleolytic cleavage in either 5'- to 3'- or 3'- to 5'-
CC         direction to yield nucleoside 5'-phosphates.; EC=3.1.11.6;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00337};
CC   -!- SUBUNIT: Heterooligomer composed of large and small subunits.
CC       {ECO:0000255|HAMAP-Rule:MF_00337}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00337}.
CC   -!- SIMILARITY: Belongs to the XseB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00337}.
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DR   EMBL; CP000471; ABK43568.1; -; Genomic_DNA.
DR   RefSeq; WP_011712725.1; NC_008576.1.
DR   AlphaFoldDB; A0L6H5; -.
DR   SMR; A0L6H5; -.
DR   STRING; 156889.Mmc1_1050; -.
DR   EnsemblBacteria; ABK43568; ABK43568; Mmc1_1050.
DR   KEGG; mgm:Mmc1_1050; -.
DR   eggNOG; COG1722; Bacteria.
DR   HOGENOM; CLU_145918_3_2_5; -.
DR   OMA; VRYCQQK; -.
DR   Proteomes; UP000002586; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0009318; C:exodeoxyribonuclease VII complex; IEA:InterPro.
DR   GO; GO:0008855; F:exodeoxyribonuclease VII activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006308; P:DNA catabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.287.1040; -; 1.
DR   HAMAP; MF_00337; Exonuc_7_S; 1.
DR   InterPro; IPR003761; Exonuc_VII_S.
DR   InterPro; IPR037004; Exonuc_VII_ssu_sf.
DR   PANTHER; PTHR34137; PTHR34137; 1.
DR   Pfam; PF02609; Exonuc_VII_S; 1.
DR   PIRSF; PIRSF006488; Exonuc_VII_S; 1.
DR   SUPFAM; SSF116842; SSF116842; 1.
DR   TIGRFAMs; TIGR01280; xseB; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Exonuclease; Hydrolase; Nuclease; Reference proteome.
FT   CHAIN           1..70
FT                   /note="Exodeoxyribonuclease 7 small subunit"
FT                   /id="PRO_1000059720"
SQ   SEQUENCE   70 AA;  7766 MW;  8CDAA31006444554 CRC64;
     MSSDKKQGFE ASLERLEALV GELERGELPL EEALAAYEEG MKLARLCQKR LDSAEKRIEK
     IATPSGDEEA