ID   EX7S_MAGSA              Reviewed;          81 AA.
AC   Q2W369;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   10-JAN-2006, sequence version 1.
DT   25-MAY-2022, entry version 91.
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=amb2902;
OS   Magnetospirillum magneticum (strain AMB-1 / ATCC 700264).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Magnetospirillum.
OX   NCBI_TaxID=342108;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AMB-1 / ATCC 700264;
RX   PubMed=16303747; DOI=10.1093/dnares/dsi002;
RA   Matsunaga T., Okamura Y., Fukuda Y., Wahyudi A.T., Murase Y., Takeyama H.;
RT   "Complete genome sequence of the facultative anaerobic magnetotactic
RT   bacterium Magnetospirillum sp. strain AMB-1.";
RL   DNA Res. 12:157-166(2005).
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; AP007255; BAE51706.1; -; Genomic_DNA.
DR   RefSeq; WP_011385279.1; NC_007626.1.
DR   AlphaFoldDB; Q2W369; -.
DR   SMR; Q2W369; -.
DR   STRING; 342108.amb2902; -.
DR   EnsemblBacteria; BAE51706; BAE51706; amb2902.
DR   KEGG; mag:amb2902; -.
DR   HOGENOM; CLU_145918_0_3_5; -.
DR   OMA; PLNDYKG; -.
DR   OrthoDB; 2057189at2; -.
DR   Proteomes; UP000007058; 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   SUPFAM; SSF116842; SSF116842; 1.
DR   TIGRFAMs; TIGR01280; xseB; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Exonuclease; Hydrolase; Nuclease; Reference proteome.
FT   CHAIN           1..81
FT                   /note="Exodeoxyribonuclease 7 small subunit"
FT                   /id="PRO_0000303723"
SQ   SEQUENCE   81 AA;  8842 MW;  17561C6E73993FD0 CRC64;
     MAEISTDIAA MSFEEALAEL DLIVRRLEEG KGRLDDSIVA YERGALLKKH CEAKLEEART
     KVERIVSGPD GSVALQAVDN V