ID   RNB_SHIF8               Reviewed;         644 AA.
AC   Q0T5B1;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-SEP-2006, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Exoribonuclease 2 {ECO:0000255|HAMAP-Rule:MF_01036};
DE            EC=3.1.13.1 {ECO:0000255|HAMAP-Rule:MF_01036};
DE   AltName: Full=Exoribonuclease II {ECO:0000255|HAMAP-Rule:MF_01036};
DE            Short=RNase II {ECO:0000255|HAMAP-Rule:MF_01036};
DE            Short=Ribonuclease II {ECO:0000255|HAMAP-Rule:MF_01036};
GN   Name=rnb {ECO:0000255|HAMAP-Rule:MF_01036}; OrderedLocusNames=SFV_1300;
OS   Shigella flexneri serotype 5b (strain 8401).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=373384;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=8401;
RX   PubMed=16822325; DOI=10.1186/1471-2164-7-173;
RA   Nie H., Yang F., Zhang X., Yang J., Chen L., Wang J., Xiong Z., Peng J.,
RA   Sun L., Dong J., Xue Y., Xu X., Chen S., Yao Z., Shen Y., Jin Q.;
RT   "Complete genome sequence of Shigella flexneri 5b and comparison with
RT   Shigella flexneri 2a.";
RL   BMC Genomics 7:173-173(2006).
CC   -!- FUNCTION: Involved in mRNA degradation. Hydrolyzes single-stranded
CC       polyribonucleotides processively in the 3' to 5' direction.
CC       {ECO:0000255|HAMAP-Rule:MF_01036}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Exonucleolytic cleavage in the 3'- to 5'-direction to yield
CC         nucleoside 5'-phosphates.; EC=3.1.13.1; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01036};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01036}.
CC   -!- SIMILARITY: Belongs to the RNR ribonuclease family. RNase II subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01036}.
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DR   EMBL; CP000266; ABF03504.1; -; Genomic_DNA.
DR   RefSeq; WP_000485029.1; NC_008258.1.
DR   AlphaFoldDB; Q0T5B1; -.
DR   SMR; Q0T5B1; -.
DR   EnsemblBacteria; ABF03504; ABF03504; SFV_1300.
DR   KEGG; sfv:SFV_1300; -.
DR   HOGENOM; CLU_002333_7_3_6; -.
DR   OMA; CFTNYLP; -.
DR   BioCyc; SFLE373384:SFV_RS07250-MON; -.
DR   Proteomes; UP000000659; Chromosome.
DR   GO; GO:0005829; C:cytosol; IEA:UniProt.
DR   GO; GO:0008859; F:exoribonuclease II activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0006402; P:mRNA catabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 2.40.50.140; -; 2.
DR   HAMAP; MF_01036; RNase_II; 1.
DR   InterPro; IPR011129; CSD.
DR   InterPro; IPR040476; CSD2.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR013223; RNase_B_OB_dom.
DR   InterPro; IPR011804; RNase_II.
DR   InterPro; IPR001900; RNase_II/R.
DR   InterPro; IPR022966; RNase_II/R_CS.
DR   InterPro; IPR004476; RNase_II/RNase_R.
DR   InterPro; IPR022967; S1_dom.
DR   InterPro; IPR003029; S1_domain.
DR   Pfam; PF17876; CSD2; 1.
DR   Pfam; PF08206; OB_RNB; 1.
DR   Pfam; PF00773; RNB; 1.
DR   Pfam; PF00575; S1; 1.
DR   SMART; SM00357; CSP; 1.
DR   SMART; SM00955; RNB; 1.
DR   SMART; SM00316; S1; 1.
DR   SUPFAM; SSF50249; SSF50249; 4.
DR   TIGRFAMs; TIGR00358; 3_prime_RNase; 1.
DR   TIGRFAMs; TIGR02062; RNase_B; 1.
DR   PROSITE; PS01175; RIBONUCLEASE_II; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Exonuclease; Hydrolase; Nuclease; RNA-binding.
FT   CHAIN           1..644
FT                   /note="Exoribonuclease 2"
FT                   /id="PRO_1000063900"
FT   DOMAIN          561..643
FT                   /note="S1 motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01036"
SQ   SEQUENCE   644 AA;  72479 MW;  2BF5CC2259EEB958 CRC64;
     MFQDNPLLAQ LKQQLHSQTP RAEGVVKATE KGFGFLEVDA QKSYFIPPPQ MKKVMHGDRI
     IAVIHSEKER ESAEPEELVE PFLTRFVGKV QGKNDRLTIV PDHPLLKDAI PCRAARGLNH
     EFKEGDWAVA EMRRHPLKGD RSFYAELTQY ITFGDDHFVP WWVTLARHNL EKEAPDGVAT
     EMLDEGLVRE DLTSLDFVTI DSASTEDMDD ALFAKALPDD KLQLIVAIAD PTAWIAEGSK
     LDKAAKIRAF TNYLPGFNIP MLPRELSDDL CSLRANEVRP VLACRMTLSA DGTIEDNIEF
     FAATIESKAK LVYDQVSDWL ENTGDWKPES EAIAEQVRLL AQICQRRGEW RHNHALVFKD
     RPDYRFILGE KGEVLDIVAE PRRIANRIVE EAMIAANICA ARVLRDKLGF GIYNVHMGFD
     PANADALAAL LKTHGLHVDA EEVLTLDGFC KLRRELDAQP TGFLDSRIRR FQSFAEISTE
     PGPHFGLGLE AYATWTSPIR KYGDMINHRL LKAVIKGETA TRPQDEITVQ MAERRRLNRM
     AERDVGDWLY ARFLKDKAGT GTRFAAEIVD ISRGGMRVRL VDNGAIAFIP APFLHAVRDE
     LVCSQENGTV QIKGETVYKV TDVIDVTIAE VRMETRSIIA RPVA