ID   RNH2_LATSS              Reviewed;         253 AA.
AC   Q38WY6;
DT   16-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 90.
DE   RecName: Full=Ribonuclease HII {ECO:0000255|HAMAP-Rule:MF_00052};
DE            Short=RNase HII {ECO:0000255|HAMAP-Rule:MF_00052};
DE            EC=3.1.26.4 {ECO:0000255|HAMAP-Rule:MF_00052};
GN   Name=rnhB {ECO:0000255|HAMAP-Rule:MF_00052}; OrderedLocusNames=LCA_0993;
OS   Latilactobacillus sakei subsp. sakei (strain 23K) (Lactobacillus sakei
OS   subsp. sakei).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Latilactobacillus.
OX   NCBI_TaxID=314315;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=23K;
RX   PubMed=16273110; DOI=10.1038/nbt1160;
RA   Chaillou S., Champomier-Verges M.-C., Cornet M., Crutz-Le Coq A.-M.,
RA   Dudez A.-M., Martin V., Beaufils S., Darbon-Rongere E., Bossy R., Loux V.,
RA   Zagorec M.;
RT   "The complete genome sequence of the meat-borne lactic acid bacterium
RT   Lactobacillus sakei 23K.";
RL   Nat. Biotechnol. 23:1527-1533(2005).
CC   -!- FUNCTION: Endonuclease that specifically degrades the RNA of RNA-DNA
CC       hybrids. {ECO:0000255|HAMAP-Rule:MF_00052}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00052};
CC   -!- COFACTOR:
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00052};
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00052};
CC       Note=Manganese or magnesium. Binds 1 divalent metal ion per monomer in
CC       the absence of substrate. May bind a second metal ion after substrate
CC       binding. {ECO:0000255|HAMAP-Rule:MF_00052};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00052}.
CC   -!- SIMILARITY: Belongs to the RNase HII family. {ECO:0000255|HAMAP-
CC       Rule:MF_00052}.
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DR   EMBL; CR936503; CAI55295.1; -; Genomic_DNA.
DR   RefSeq; WP_011374695.1; NC_007576.1.
DR   AlphaFoldDB; Q38WY6; -.
DR   SMR; Q38WY6; -.
DR   STRING; 314315.LCA_0993; -.
DR   PRIDE; Q38WY6; -.
DR   EnsemblBacteria; CAI55295; CAI55295; LCA_0993.
DR   KEGG; lsa:LCA_0993; -.
DR   eggNOG; COG0164; Bacteria.
DR   HOGENOM; CLU_036532_2_1_9; -.
DR   OMA; YPTKLHL; -.
DR   OrthoDB; 1685277at2; -.
DR   Proteomes; UP000002707; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003723; F:RNA binding; IEA:InterPro.
DR   GO; GO:0004523; F:RNA-DNA hybrid ribonuclease activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006401; P:RNA catabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd07182; RNase_HII_bacteria_HII_like; 1.
DR   Gene3D; 3.30.420.10; -; 1.
DR   HAMAP; MF_00052_B; RNase_HII_B; 1.
DR   InterPro; IPR022898; RNase_HII.
DR   InterPro; IPR001352; RNase_HII/HIII.
DR   InterPro; IPR024567; RNase_HII/HIII_dom.
DR   InterPro; IPR012337; RNaseH-like_sf.
DR   InterPro; IPR036397; RNaseH_sf.
DR   PANTHER; PTHR10954; PTHR10954; 1.
DR   PANTHER; PTHR10954:SF18; PTHR10954:SF18; 1.
DR   Pfam; PF01351; RNase_HII; 1.
DR   SUPFAM; SSF53098; SSF53098; 1.
DR   PROSITE; PS51975; RNASE_H_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Endonuclease; Hydrolase; Manganese; Metal-binding; Nuclease;
KW   Reference proteome.
FT   CHAIN           1..253
FT                   /note="Ribonuclease HII"
FT                   /id="PRO_0000235732"
FT   DOMAIN          70..253
FT                   /note="RNase H type-2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT   BINDING         76
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         77
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         168
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ   SEQUENCE   253 AA;  27679 MW;  8BD0D3101116C015 CRC64;
     MTKAQSIAEI KQLLQAPVTE EQLATFAADS RAGVQKLVVQ YHKRAAKLAA QKAAFEERRQ
     TEKALWPDYP LVAGIDEVGR GPLAGPVVTA AVILPHDFDL WQVNDSKQLS FKLKQELYRE
     IMAQAVSVSI GIASPERIDT ENIYHATELA MGEAVAGLDK QPDYLLVDAM TVPTDIPQEK
     LIKGDARSIS IASASIVAKV IRDQLMINYD QQYPGYDLAN NMGYGTAKHL AGLAELGVTP
     IHRRSFSPVQ NAL