ID   RNH2_PSE14              Reviewed;         222 AA.
AC   Q48F73;
DT   16-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   03-AUG-2022, entry version 88.
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=PSPPH_3826;
OS   Pseudomonas savastanoi pv. phaseolicola (strain 1448A / Race 6)
OS   (Pseudomonas syringae pv. phaseolicola (strain 1448A / Race 6)).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=264730;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=1448A / Race 6;
RX   PubMed=16159782; DOI=10.1128/jb.187.18.6488-6498.2005;
RA   Joardar V., Lindeberg M., Jackson R.W., Selengut J., Dodson R.,
RA   Brinkac L.M., Daugherty S.C., DeBoy R.T., Durkin A.S., Gwinn Giglio M.,
RA   Madupu R., Nelson W.C., Rosovitz M.J., Sullivan S.A., Crabtree J.,
RA   Creasy T., Davidsen T.M., Haft D.H., Zafar N., Zhou L., Halpin R.,
RA   Holley T., Khouri H.M., Feldblyum T.V., White O., Fraser C.M.,
RA   Chatterjee A.K., Cartinhour S., Schneider D., Mansfield J.W., Collmer A.,
RA   Buell R.;
RT   "Whole-genome sequence analysis of Pseudomonas syringae pv. phaseolicola
RT   1448A reveals divergence among pathovars in genes involved in virulence and
RT   transposition.";
RL   J. Bacteriol. 187:6488-6498(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; CP000058; AAZ37839.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q48F73; -.
DR   SMR; Q48F73; -.
DR   STRING; 264730.PSPPH_3826; -.
DR   EnsemblBacteria; AAZ37839; AAZ37839; PSPPH_3826.
DR   KEGG; psp:PSPPH_3826; -.
DR   eggNOG; COG0164; Bacteria.
DR   HOGENOM; CLU_036532_3_2_6; -.
DR   OMA; YPTKLHL; -.
DR   Proteomes; UP000000551; 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.
FT   CHAIN           1..222
FT                   /note="Ribonuclease HII"
FT                   /id="PRO_0000235755"
FT   DOMAIN          17..206
FT                   /note="RNase H type-2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT   BINDING         23
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         24
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         115
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ   SEQUENCE   222 AA;  23794 MW;  820BB0220A13E279 CRC64;
     MRSPIMQTGL DFTLVEDLVA GVDEVGRGPL CGAVVTAAVI LDPARPILGL NDSKKLTEAR
     REKLYVEIQE KALCWFIARA EVEEIDQLNI LHATMLAMKR AVEGLSITPK LALIDGNRCP
     QLSVPSAPVV KGDSRVPAIA AASILAKVSR DREMAAFELI YPGYGIGGHK GYPTPVHLEA
     LARLGPTPIH RRSFAPVRAA HEARASIMIG GSIPLPVGLL QD