ID EX7S_STRR6 Reviewed; 70 AA.
AC P67466; Q97QJ9;
DT 11-OCT-2004, integrated into UniProtKB/Swiss-Prot.
DT 11-OCT-2004, sequence version 1.
DT 27-MAR-2024, entry version 101.
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=spr1088;
OS Streptococcus pneumoniae (strain ATCC BAA-255 / R6).
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=171101;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-255 / R6;
RX PubMed=11544234; DOI=10.1128/jb.183.19.5709-5717.2001;
RA Hoskins J., Alborn W.E. Jr., Arnold J., Blaszczak L.C., Burgett S.,
RA DeHoff B.S., Estrem S.T., Fritz L., Fu D.-J., Fuller W., Geringer C.,
RA Gilmour R., Glass J.S., Khoja H., Kraft A.R., Lagace R.E., LeBlanc D.J.,
RA Lee L.N., Lefkowitz E.J., Lu J., Matsushima P., McAhren S.M., McHenney M.,
RA McLeaster K., Mundy C.W., Nicas T.I., Norris F.H., O'Gara M., Peery R.B.,
RA Robertson G.T., Rockey P., Sun P.-M., Winkler M.E., Yang Y.,
RA Young-Bellido M., Zhao G., Zook C.A., Baltz R.H., Jaskunas S.R.,
RA Rosteck P.R. Jr., Skatrud P.L., Glass J.I.;
RT "Genome of the bacterium Streptococcus pneumoniae strain R6.";
RL J. Bacteriol. 183:5709-5717(2001).
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; AE007317; AAK99891.1; -; Genomic_DNA.
DR PIR; G98007; G98007.
DR RefSeq; NP_358681.1; NC_003098.1.
DR RefSeq; WP_000043230.1; NC_003098.1.
DR AlphaFoldDB; P67466; -.
DR SMR; P67466; -.
DR STRING; 171101.spr1088; -.
DR GeneID; 66806322; -.
DR KEGG; spr:spr1088; -.
DR PATRIC; fig|171101.6.peg.1182; -.
DR eggNOG; COG1722; Bacteria.
DR HOGENOM; CLU_145918_3_2_9; -.
DR Proteomes; UP000000586; Chromosome.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0009318; C:exodeoxyribonuclease VII complex; IEA:InterPro.
DR GO; GO:0008855; F:exodeoxyribonuclease VII activity; IBA:GO_Central.
DR GO; GO:0006308; P:DNA catabolic process; IEA:UniProtKB-UniRule.
DR Gene3D; 1.10.287.1040; Exonuclease VII, small subunit; 1.
DR HAMAP; MF_00337; Exonuc_7_S; 1.
DR InterPro; IPR003761; Exonuc_VII_S.
DR InterPro; IPR037004; Exonuc_VII_ssu_sf.
DR NCBIfam; TIGR01280; xseB; 1.
DR PANTHER; PTHR34137; EXODEOXYRIBONUCLEASE 7 SMALL SUBUNIT; 1.
DR PANTHER; PTHR34137:SF1; EXODEOXYRIBONUCLEASE 7 SMALL SUBUNIT; 1.
DR Pfam; PF02609; Exonuc_VII_S; 1.
DR PIRSF; PIRSF006488; Exonuc_VII_S; 1.
DR SUPFAM; SSF116842; XseB-like; 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_0000207017"
SQ SEQUENCE 70 AA; 7850 MW; 7914FC71CBA188AA CRC64;
MSKQKKFEEN LAELETIVQS LENGEIALED AITAFQKGMV LSKELQATLD KAEKTLVKVM
QEDGTESDFE
//
