ID   ORN_CITK8               Reviewed;         181 AA.
AC   A8AMN6;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-OCT-2007, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=Oligoribonuclease {ECO:0000255|HAMAP-Rule:MF_00045};
DE            EC=3.1.15.- {ECO:0000255|HAMAP-Rule:MF_00045};
GN   Name=orn {ECO:0000255|HAMAP-Rule:MF_00045}; OrderedLocusNames=CKO_03672;
OS   Citrobacter koseri (strain ATCC BAA-895 / CDC 4225-83 / SGSC4696).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Citrobacter.
OX   NCBI_TaxID=290338;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-895 / CDC 4225-83 / SGSC4696;
RG   The Citrobacter koseri Genome Sequencing Project;
RA   McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S.,
RA   Latreille P., Courtney L., Wang C., Pepin K., Bhonagiri V., Nash W.,
RA   Johnson M., Thiruvilangam P., Wilson R.;
RL   Submitted (AUG-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: 3'-to-5' exoribonuclease specific for small
CC       oligoribonucleotides. {ECO:0000255|HAMAP-Rule:MF_00045}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00045}.
CC   -!- SIMILARITY: Belongs to the oligoribonuclease family.
CC       {ECO:0000255|HAMAP-Rule:MF_00045}.
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DR   EMBL; CP000822; ABV14749.1; -; Genomic_DNA.
DR   RefSeq; WP_012134446.1; NC_009792.1.
DR   AlphaFoldDB; A8AMN6; -.
DR   SMR; A8AMN6; -.
DR   STRING; 290338.CKO_03672; -.
DR   EnsemblBacteria; ABV14749; ABV14749; CKO_03672.
DR   GeneID; 45137376; -.
DR   KEGG; cko:CKO_03672; -.
DR   HOGENOM; CLU_064761_2_0_6; -.
DR   OMA; AFFHYRN; -.
DR   OrthoDB; 1390327at2; -.
DR   Proteomes; UP000008148; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0000175; F:3'-5'-exoribonuclease activity; IEA:InterPro.
DR   GO; GO:0003676; F:nucleic acid binding; IEA:InterPro.
DR   CDD; cd06135; Orn; 1.
DR   Gene3D; 3.30.420.10; -; 1.
DR   HAMAP; MF_00045; Oligoribonuclease; 1.
DR   InterPro; IPR013520; Exonuclease_RNaseT/DNA_pol3.
DR   InterPro; IPR022894; Oligoribonuclease.
DR   InterPro; IPR012337; RNaseH-like_sf.
DR   InterPro; IPR036397; RNaseH_sf.
DR   PANTHER; PTHR11046; PTHR11046; 1.
DR   Pfam; PF00929; RNase_T; 1.
DR   SMART; SM00479; EXOIII; 1.
DR   SUPFAM; SSF53098; SSF53098; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Exonuclease; Hydrolase; Nuclease; Reference proteome.
FT   CHAIN           1..181
FT                   /note="Oligoribonuclease"
FT                   /id="PRO_1000004243"
FT   DOMAIN          8..171
FT                   /note="Exonuclease"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00045"
FT   ACT_SITE        129
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00045"
SQ   SEQUENCE   181 AA;  20679 MW;  079388773A1BD906 CRC64;
     MSANENNLIW IDLEMTGLDP ERDRIIEIAT LVTDANLNIL AEGPTIAVHQ SAEQLALMDD
     WNVRTHTGSG LVDRVKASSF DDRAAELATI EFLKEWVPAG KSPICGNSIG QDRRFLFKYM
     PELEAYFHYR YLDVSTLKEL ARRWKPEILA GFTKQGTHQA MDDIRESVAE LAYYRENFIK
     L