ID A0A5C5TCZ8_9STRE Unreviewed; 299 AA.
AC A0A5C5TCZ8;
DT 13-NOV-2019, integrated into UniProtKB/TrEMBL.
DT 13-NOV-2019, sequence version 1.
DT 27-MAR-2024, entry version 17.
DE RecName: Full=Ribonuclease HIII {ECO:0000256|HAMAP-Rule:MF_00053};
DE Short=RNase HIII {ECO:0000256|HAMAP-Rule:MF_00053};
DE EC=3.1.26.4 {ECO:0000256|HAMAP-Rule:MF_00053};
GN Name=rnhC {ECO:0000256|HAMAP-Rule:MF_00053};
GN ORFNames=FRX54_03580 {ECO:0000313|EMBL:TWT11339.1};
OS Streptococcus sp. sy004.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=2600149 {ECO:0000313|EMBL:TWT11339.1, ECO:0000313|Proteomes:UP000318879};
RN [1] {ECO:0000313|EMBL:TWT11339.1, ECO:0000313|Proteomes:UP000318879}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=sy004 {ECO:0000313|Proteomes:UP000318879};
RA Lei W.;
RL Submitted (AUG-2019) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Endonuclease that specifically degrades the RNA of RNA-DNA
CC hybrids. {ECO:0000256|ARBA:ARBA00004065, ECO:0000256|HAMAP-
CC Rule:MF_00053}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC Evidence={ECO:0000256|ARBA:ARBA00000077, ECO:0000256|HAMAP-
CC Rule:MF_00053, ECO:0000256|PROSITE-ProRule:PRU01319};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00053,
CC ECO:0000256|PROSITE-ProRule:PRU01319};
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00053,
CC ECO:0000256|PROSITE-ProRule:PRU01319};
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:0000256|HAMAP-Rule:MF_00053, ECO:0000256|PROSITE-
CC ProRule:PRU01319};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC ECO:0000256|HAMAP-Rule:MF_00053}.
CC -!- SIMILARITY: Belongs to the RNase HII family. RnhC subfamily.
CC {ECO:0000256|ARBA:ARBA00008378, ECO:0000256|HAMAP-Rule:MF_00053}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:TWT11339.1}.
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DR EMBL; VOHP01000002; TWT11339.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A5C5TCZ8; -.
DR Proteomes; UP000318879; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
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; cd06590; RNase_HII_bacteria_HIII_like; 1.
DR Gene3D; 3.30.420.10; Ribonuclease H-like superfamily/Ribonuclease H; 1.
DR Gene3D; 3.30.310.10; TATA-Binding Protein; 1.
DR HAMAP; MF_00053; RNase_HIII; 1.
DR InterPro; IPR001352; RNase_HII/HIII.
DR InterPro; IPR024567; RNase_HII/HIII_dom.
DR InterPro; IPR004641; RNase_HIII.
DR InterPro; IPR024568; RNase_HIII_N.
DR InterPro; IPR012337; RNaseH-like_sf.
DR InterPro; IPR036397; RNaseH_sf.
DR InterPro; IPR012295; TBP_dom_sf.
DR NCBIfam; TIGR00716; rnhC; 1.
DR PANTHER; PTHR10954; RIBONUCLEASE H2 SUBUNIT A; 1.
DR PANTHER; PTHR10954:SF25; RIBONUCLEASE HIII; 1.
DR Pfam; PF11858; DUF3378; 1.
DR Pfam; PF01351; RNase_HII; 1.
DR PIRSF; PIRSF037748; RnhC; 1.
DR SUPFAM; SSF53098; Ribonuclease H-like; 1.
DR PROSITE; PS51975; RNASE_H_2; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00053};
KW Endonuclease {ECO:0000256|ARBA:ARBA00022759, ECO:0000256|HAMAP-
KW Rule:MF_00053};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_00053};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_00053};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00053};
KW Nuclease {ECO:0000256|ARBA:ARBA00022722, ECO:0000256|HAMAP-Rule:MF_00053};
KW Reference proteome {ECO:0000313|Proteomes:UP000318879}.
FT DOMAIN 82..299
FT /note="RNase H type-2"
FT /evidence="ECO:0000259|PROSITE:PS51975"
FT BINDING 88
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00053,
FT ECO:0000256|PROSITE-ProRule:PRU01319"
FT BINDING 89
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00053,
FT ECO:0000256|PROSITE-ProRule:PRU01319"
FT BINDING 193
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00053,
FT ECO:0000256|PROSITE-ProRule:PRU01319"
SQ SEQUENCE 299 AA; 32957 MW; 3022D7AE6D6BA06E CRC64;
MNTVVMTLGD GATNQLTTRL YEYQIPNKQA YVQFTAKYQG VTVQLYHSGK IVFQGKEALS
VAKTFGYQDH TPKPASQTRQ VTSMIGTDEV GNGSYFGGLA VVASFVTAQD EEFLKKLGVA
DSKQLNDAKI KALAPILKEK IRHKALLLTP KKYNELIGQG KPYNAVSVKV ALHNQTIFLL
LQQGIQPDKI VIDAFTTMAN YQKYLKQEKN PIQREFHLET KAEDNYLAVA VSSIIARQLF
LENLEQLGQK VGHQLPSGAG AQSDQVASHI LAQQGQATLA KVAKLHFANT NKALNLLKK
//
