ID   RNH_DICNV               Reviewed;         150 AA.
AC   A5EXP9;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   03-AUG-2022, entry version 74.
DE   RecName: Full=Ribonuclease H {ECO:0000255|HAMAP-Rule:MF_00042};
DE            Short=RNase H {ECO:0000255|HAMAP-Rule:MF_00042};
DE            EC=3.1.26.4 {ECO:0000255|HAMAP-Rule:MF_00042};
GN   Name=rnhA {ECO:0000255|HAMAP-Rule:MF_00042}; OrderedLocusNames=DNO_1102;
OS   Dichelobacter nodosus (strain VCS1703A).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Cardiobacteriales;
OC   Cardiobacteriaceae; Dichelobacter.
OX   NCBI_TaxID=246195;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=VCS1703A;
RX   PubMed=17468768; DOI=10.1038/nbt1302;
RA   Myers G.S.A., Parker D., Al-Hasani K., Kennan R.M., Seemann T., Ren Q.,
RA   Badger J.H., Selengut J.D., Deboy R.T., Tettelin H., Boyce J.D.,
RA   McCarl V.P., Han X., Nelson W.C., Madupu R., Mohamoud Y., Holley T.,
RA   Fedorova N., Khouri H., Bottomley S.P., Whittington R.J., Adler B.,
RA   Songer J.G., Rood J.I., Paulsen I.T.;
RT   "Genome sequence and identification of candidate vaccine antigens from the
RT   animal pathogen Dichelobacter nodosus.";
RL   Nat. Biotechnol. 25:569-575(2007).
CC   -!- FUNCTION: Endonuclease that specifically degrades the RNA of RNA-DNA
CC       hybrids. {ECO:0000255|HAMAP-Rule:MF_00042}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00042};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00042};
CC       Note=Binds 1 Mg(2+) ion per subunit. May bind a second metal ion at a
CC       regulatory site, or after substrate binding. {ECO:0000255|HAMAP-
CC       Rule:MF_00042};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00042}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00042}.
CC   -!- SIMILARITY: Belongs to the RNase H family. {ECO:0000255|HAMAP-
CC       Rule:MF_00042}.
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DR   EMBL; CP000513; ABQ14019.1; -; Genomic_DNA.
DR   RefSeq; WP_012031406.1; NC_009446.1.
DR   AlphaFoldDB; A5EXP9; -.
DR   SMR; A5EXP9; -.
DR   STRING; 246195.DNO_1102; -.
DR   EnsemblBacteria; ABQ14019; ABQ14019; DNO_1102.
DR   KEGG; dno:DNO_1102; -.
DR   eggNOG; COG0328; Bacteria.
DR   HOGENOM; CLU_030894_6_0_6; -.
DR   OMA; MQEIEIF; -.
DR   OrthoDB; 1953872at2; -.
DR   Proteomes; UP000000248; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003676; F:nucleic acid 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; cd09278; RNase_HI_prokaryote_like; 1.
DR   Gene3D; 3.30.420.10; -; 1.
DR   HAMAP; MF_00042; RNase_H; 1.
DR   InterPro; IPR012337; RNaseH-like_sf.
DR   InterPro; IPR002156; RNaseH_domain.
DR   InterPro; IPR036397; RNaseH_sf.
DR   InterPro; IPR022892; RNaseHI.
DR   Pfam; PF00075; RNase_H; 1.
DR   SUPFAM; SSF53098; SSF53098; 1.
DR   PROSITE; PS50879; RNASE_H_1; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Endonuclease; Hydrolase; Magnesium; Metal-binding; Nuclease;
KW   Reference proteome.
FT   CHAIN           1..150
FT                   /note="Ribonuclease H"
FT                   /id="PRO_0000332592"
FT   DOMAIN          2..143
FT                   /note="RNase H type-1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00408"
FT   BINDING         11
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         11
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         49
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         71
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         135
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
SQ   SEQUENCE   150 AA;  17038 MW;  555AC38AFD3A8B76 CRC64;
     MPAPILDIFV DGACKGNPGI GGWGVLMRYG QHEKVLMGAQ WHTTNNRMEL TAAIEALKAI
     KRPCPILIST DSVYVKNGIT HWLPVWKKNN WRNASKKPIK NIELWQALDQ LNQRYEIEWR
     WVKGHAGNPG NEIADELANR AIESLRQKTS