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RNZ_STRT1
ID   RNZ_STRT1               Reviewed;         309 AA.
AC   Q5LZD1;
DT   27-SEP-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-2005, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=Ribonuclease Z {ECO:0000255|HAMAP-Rule:MF_01818};
DE            Short=RNase Z {ECO:0000255|HAMAP-Rule:MF_01818};
DE            EC=3.1.26.11 {ECO:0000255|HAMAP-Rule:MF_01818};
DE   AltName: Full=tRNA 3 endonuclease {ECO:0000255|HAMAP-Rule:MF_01818};
DE   AltName: Full=tRNase Z {ECO:0000255|HAMAP-Rule:MF_01818};
GN   Name=rnz {ECO:0000255|HAMAP-Rule:MF_01818}; OrderedLocusNames=str1226;
OS   Streptococcus thermophilus (strain CNRZ 1066).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=299768;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CNRZ 1066;
RX   PubMed=15543133; DOI=10.1038/nbt1034;
RA   Bolotin A., Quinquis B., Renault P., Sorokin A., Ehrlich S.D.,
RA   Kulakauskas S., Lapidus A., Goltsman E., Mazur M., Pusch G.D., Fonstein M.,
RA   Overbeek R., Kyprides N., Purnelle B., Prozzi D., Ngui K., Masuy D.,
RA   Hancy F., Burteau S., Boutry M., Delcour J., Goffeau A., Hols P.;
RT   "Complete sequence and comparative genome analysis of the dairy bacterium
RT   Streptococcus thermophilus.";
RL   Nat. Biotechnol. 22:1554-1558(2004).
CC   -!- FUNCTION: Zinc phosphodiesterase, which displays some tRNA 3'-
CC       processing endonuclease activity. Probably involved in tRNA maturation,
CC       by removing a 3'-trailer from precursor tRNA. {ECO:0000255|HAMAP-
CC       Rule:MF_01818}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage of RNA, removing extra 3' nucleotides
CC         from tRNA precursor, generating 3' termini of tRNAs. A 3'-hydroxy
CC         group is left at the tRNA terminus and a 5'-phosphoryl group is left
CC         at the trailer molecule.; EC=3.1.26.11; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01818};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01818};
CC       Note=Binds 2 Zn(2+) ions. {ECO:0000255|HAMAP-Rule:MF_01818};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01818}.
CC   -!- SIMILARITY: Belongs to the RNase Z family. {ECO:0000255|HAMAP-
CC       Rule:MF_01818}.
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DR   EMBL; CP000024; AAV62771.1; -; Genomic_DNA.
DR   RefSeq; WP_011226135.1; NC_006449.1.
DR   AlphaFoldDB; Q5LZD1; -.
DR   SMR; Q5LZD1; -.
DR   GeneID; 66899018; -.
DR   KEGG; stc:str1226; -.
DR   HOGENOM; CLU_031317_2_0_9; -.
DR   OMA; GTQRQMM; -.
DR   GO; GO:0042781; F:3'-tRNA processing endoribonuclease activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   CDD; cd07717; RNaseZ_ZiPD-like_MBL-fold; 1.
DR   Gene3D; 3.60.15.10; -; 1.
DR   HAMAP; MF_01818; RNase_Z_BN; 1.
DR   InterPro; IPR001279; Metallo-B-lactamas.
DR   InterPro; IPR036866; RibonucZ/Hydroxyglut_hydro.
DR   InterPro; IPR013471; RNase_Z/BN.
DR   Pfam; PF00753; Lactamase_B; 1.
DR   SUPFAM; SSF56281; SSF56281; 1.
DR   TIGRFAMs; TIGR02651; RNase_Z; 1.
PE   3: Inferred from homology;
KW   Endonuclease; Hydrolase; Metal-binding; Nuclease; tRNA processing; Zinc.
FT   CHAIN           1..309
FT                   /note="Ribonuclease Z"
FT                   /id="PRO_0000155912"
FT   ACT_SITE        67
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         63
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         65
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         67
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         68
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         145
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         216
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         216
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         274
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
SQ   SEQUENCE   309 AA;  34042 MW;  A03AA9772EE5E0B9 CRC64;
     MELQFLGTGA GQPSKARNVS SLVLKLLDEI NEVWMFDCGE GTQRQILETT IKPRKVKKIF
     ITHMHGDHIF GLPGFLASRS FQSSEEQTDL EVYGPVGIKQ YVMTSIRTSG TRLSYHVHFK
     EIDENSLGLV MEDDKFAVYA DKLDHTIFCV GYRVVQKDLE GTLDAEALKA AGVPFGPLFG
     QIKNGQDVVL EDGTKIIAKD FISAPKKGKV ITILGDTRKT NASVRLGLGA DVLVHESTYG
     KGDEKIAKSH GHSTNMQAAQ VARDASAKRL LLNHVSARFL GRDIGKMAAD AKTIFENTHI
     VRDLEEVEI
 
 
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