ID   RNH2_GRAFK              Reviewed;         198 AA.
AC   A0M5H5;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-DEC-2006, 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=GFO_2923;
OS   Gramella forsetii (strain KT0803).
OC   Bacteria; Bacteroidetes; Flavobacteriia; Flavobacteriales;
OC   Flavobacteriaceae; Gramella.
OX   NCBI_TaxID=411154;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KT0803;
RX   PubMed=17107561; DOI=10.1111/j.1462-2920.2006.01152.x;
RA   Bauer M., Kube M., Teeling H., Richter M., Lombardot T., Allers E.,
RA   Wuerdemann C.A., Quast C., Kuhl H., Knaust F., Woebken D., Bischof K.,
RA   Mussmann M., Choudhuri J.V., Meyer F., Reinhardt R., Amann R.I.,
RA   Gloeckner F.O.;
RT   "Whole genome analysis of the marine Bacteroidetes'Gramella forsetii'
RT   reveals adaptations to degradation of polymeric organic matter.";
RL   Environ. Microbiol. 8:2201-2213(2006).
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; CU207366; CAL67870.1; -; Genomic_DNA.
DR   RefSeq; WP_011710771.1; NC_008571.1.
DR   AlphaFoldDB; A0M5H5; -.
DR   SMR; A0M5H5; -.
DR   STRING; 411154.GFO_2923; -.
DR   EnsemblBacteria; CAL67870; CAL67870; GFO_2923.
DR   KEGG; gfo:GFO_2923; -.
DR   eggNOG; COG0164; Bacteria.
DR   HOGENOM; CLU_036532_3_1_10; -.
DR   OMA; YPTKLHL; -.
DR   OrthoDB; 1685277at2; -.
DR   Proteomes; UP000000755; 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..198
FT                   /note="Ribonuclease HII"
FT                   /id="PRO_0000334901"
FT   DOMAIN          9..198
FT                   /note="RNase H type-2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT   BINDING         15
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         16
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         107
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ   SEQUENCE   198 AA;  22574 MW;  B1CB7B0305903D51 CRC64;
     MLNFYNTKIT VAGADEAGRG CLAGPVTAAA VILPIEFKNA VLNDSKTLNL KNRNFLKSLI
     EDEAITYGVA HVFMKEIDEI NILNASILAM HRALQVLKFD PDHIIVDGNR FKPYQKIPHE
     CIIKGDGKYM SIAAASILAK TYRDEFMEKI HEEFPDYNWK KNKGYPTKEH RAAIKKYGVT
     KYHRKSFKLL PDQLKIDF