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RNH_ROSDO
ID   RNH_ROSDO               Reviewed;         150 AA.
AC   Q16AK0;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   25-JUL-2006, sequence version 1.
DT   03-AUG-2022, entry version 87.
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=RD1_1351;
OS   Roseobacter denitrificans (strain ATCC 33942 / OCh 114) (Erythrobacter sp.
OS   (strain OCh 114)) (Roseobacter denitrificans).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Roseobacteraceae; Roseobacter.
OX   NCBI_TaxID=375451;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33942 / OCh 114;
RX   PubMed=17098896; DOI=10.1128/jb.01390-06;
RA   Swingley W.D., Sadekar S., Mastrian S.D., Matthies H.J., Hao J., Ramos H.,
RA   Acharya C.R., Conrad A.L., Taylor H.L., Dejesa L.C., Shah M.K.,
RA   O'Huallachain M.E., Lince M.T., Blankenship R.E., Beatty J.T.,
RA   Touchman J.W.;
RT   "The complete genome sequence of Roseobacter denitrificans reveals a
RT   mixotrophic rather than photosynthetic metabolism.";
RL   J. Bacteriol. 189:683-690(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; CP000362; ABG30993.1; -; Genomic_DNA.
DR   RefSeq; WP_011567613.1; NZ_FOOO01000008.1.
DR   AlphaFoldDB; Q16AK0; -.
DR   SMR; Q16AK0; -.
DR   STRING; 375451.RD1_1351; -.
DR   EnsemblBacteria; ABG30993; ABG30993; RD1_1351.
DR   KEGG; rde:RD1_1351; -.
DR   eggNOG; COG0328; Bacteria.
DR   HOGENOM; CLU_030894_6_0_5; -.
DR   OMA; MQEIEIF; -.
DR   OrthoDB; 1953872at2; -.
DR   Proteomes; UP000007029; 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_0000332671"
FT   DOMAIN          1..146
FT                   /note="RNase H type-1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00408"
FT   BINDING         9
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         9
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         52
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         74
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         138
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;  16398 MW;  641CC04AEE91B68A CRC64;
     MPELFAYTDG ACSGNPGPGG WGVLLQAKEG DRLVKERALK GGEAHTTNNR MELLAAINAL
     ESLSRASTIT VVTDSNYVKN GITGWIHGWK RNGWKNAAKK PVANAELWQR LDEANARHDV
     TWKWVKGHAG HAENERADEL ARAGMAPFKP
 
 
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