ID   RNH2_PARL1              Reviewed;         269 AA.
AC   A7HQZ3;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   11-SEP-2007, sequence version 1.
DT   03-AUG-2022, entry version 74.
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=Plav_0703;
OS   Parvibaculum lavamentivorans (strain DS-1 / DSM 13023 / NCIMB 13966).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Parvibaculaceae; Parvibaculum.
OX   NCBI_TaxID=402881;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DS-1 / DSM 13023 / NCIMB 13966;
RX   PubMed=22675581; DOI=10.4056/sigs.2215005;
RA   Schleheck D., Weiss M., Pitluck S., Bruce D., Land M.L., Han S.,
RA   Saunders E., Tapia R., Detter C., Brettin T., Han J., Woyke T., Goodwin L.,
RA   Pennacchio L., Nolan M., Cook A.M., Kjelleberg S., Thomas T.;
RT   "Complete genome sequence of Parvibaculum lavamentivorans type strain (DS-
RT   1(T)).";
RL   Stand. Genomic Sci. 5:298-310(2011).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000774; ABS62326.1; -; Genomic_DNA.
DR   AlphaFoldDB; A7HQZ3; -.
DR   SMR; A7HQZ3; -.
DR   STRING; 402881.Plav_0703; -.
DR   EnsemblBacteria; ABS62326; ABS62326; Plav_0703.
DR   KEGG; pla:Plav_0703; -.
DR   eggNOG; COG0164; Bacteria.
DR   HOGENOM; CLU_036532_3_2_5; -.
DR   OMA; YPTKLHL; -.
DR   Proteomes; UP000006377; 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..269
FT                   /note="Ribonuclease HII"
FT                   /id="PRO_0000334931"
FT   DOMAIN          61..250
FT                   /note="RNase H type-2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT   BINDING         67
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         68
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         158
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ   SEQUENCE   269 AA;  28448 MW;  41FBEDD1B70B7D35 CRC64;
     MRPGFSVPGE SGRERPAFPL PCACGTLRPM PPPAKKPAQK KKPLPLLPDF RFEIEEGAPA
     RLVCGVDEAG RGPLAGPVVA AAVIIDLTRC PEGLNDSKKL DAARRADLLA ELADCAEIGV
     GIASVEEIDE INILHATMLA MTRAVASLPR APHIALIDGN RCPPSLACAS RAVIGGDALA
     RSIAAASIVA KVTRDRMMAA LAETHPGYGF EKHMGYSTPE HFDALSRLGP CAIHRRSFAP
     VRKMLSPGLE EGLDLVSGES VNLLIQKAY