RTCA_PYRNV
ID RTCA_PYRNV Reviewed; 347 AA.
AC B1YDJ1;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 20-MAY-2008, sequence version 1.
DT 03-AUG-2022, entry version 80.
DE RecName: Full=RNA 3'-terminal phosphate cyclase {ECO:0000255|HAMAP-Rule:MF_00200};
DE Short=RNA cyclase {ECO:0000255|HAMAP-Rule:MF_00200};
DE Short=RNA-3'-phosphate cyclase {ECO:0000255|HAMAP-Rule:MF_00200};
DE EC=6.5.1.4 {ECO:0000255|HAMAP-Rule:MF_00200};
GN Name=rtcA {ECO:0000255|HAMAP-Rule:MF_00200}; OrderedLocusNames=Tneu_0917;
OS Pyrobaculum neutrophilum (strain DSM 2338 / JCM 9278 / NBRC 100436 /
OS V24Sta) (Thermoproteus neutrophilus).
OC Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae;
OC Pyrobaculum.
OX NCBI_TaxID=444157;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 2338 / JCM 9278 / NBRC 100436 / V24Sta;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Sims D., Brettin T., Detter J.C., Han C.,
RA Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA Mikhailova N., Biddle J.F., Zhang Z., Fitz-Gibbon S.T., Lowe T.M.,
RA Saltikov C., House C.H., Richardson P.;
RT "Complete sequence of Thermoproteus neutrophilus V24Sta.";
RL Submitted (MAR-2008) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the conversion of 3'-phosphate to a 2',3'-cyclic
CC phosphodiester at the end of RNA. The mechanism of action of the enzyme
CC occurs in 3 steps: (A) adenylation of the enzyme by ATP; (B) transfer
CC of adenylate to an RNA-N3'P to produce RNA-N3'PP5'A; (C) and attack of
CC the adjacent 2'-hydroxyl on the 3'-phosphorus in the diester linkage to
CC produce the cyclic end product. The biological role of this enzyme is
CC unknown but it is likely to function in some aspects of cellular RNA
CC processing. {ECO:0000255|HAMAP-Rule:MF_00200}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 3'-end 3'-phospho-ribonucleotide-RNA + ATP = a 3'-end 2',3'-
CC cyclophospho-ribonucleotide-RNA + AMP + diphosphate;
CC Xref=Rhea:RHEA:23976, Rhea:RHEA-COMP:10463, Rhea:RHEA-COMP:10464,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:83062,
CC ChEBI:CHEBI:83064, ChEBI:CHEBI:456215; EC=6.5.1.4;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00200};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00200}.
CC -!- SIMILARITY: Belongs to the RNA 3'-terminal cyclase family. Type 1
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_00200}.
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DR EMBL; CP001014; ACB39854.1; -; Genomic_DNA.
DR AlphaFoldDB; B1YDJ1; -.
DR SMR; B1YDJ1; -.
DR STRING; 444157.Tneu_0917; -.
DR EnsemblBacteria; ACB39854; ACB39854; Tneu_0917.
DR KEGG; tne:Tneu_0917; -.
DR eggNOG; arCOG04125; Archaea.
DR HOGENOM; CLU_027882_0_0_2; -.
DR OMA; PKPGLSH; -.
DR Proteomes; UP000001694; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0003963; F:RNA-3'-phosphate cyclase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006396; P:RNA processing; IEA:InterPro.
DR Gene3D; 3.30.360.20; -; 1.
DR Gene3D; 3.65.10.20; -; 1.
DR HAMAP; MF_00200; RTC; 1.
DR InterPro; IPR013791; RNA3'-term_phos_cycl_insert.
DR InterPro; IPR023797; RNA3'_phos_cyclase_dom.
DR InterPro; IPR037136; RNA3'_phos_cyclase_dom_sf.
DR InterPro; IPR000228; RNA3'_term_phos_cyc.
DR InterPro; IPR017770; RNA3'_term_phos_cyc_type_1.
DR InterPro; IPR013792; RNA3'P_cycl/enolpyr_Trfase_a/b.
DR InterPro; IPR036553; RPTC_insert.
DR PANTHER; PTHR11096; PTHR11096; 1.
DR PANTHER; PTHR11096:SF0; PTHR11096:SF0; 1.
DR Pfam; PF01137; RTC; 1.
DR Pfam; PF05189; RTC_insert; 1.
DR PIRSF; PIRSF005378; RNA3'_term_phos_cycl_euk; 1.
DR SUPFAM; SSF52913; SSF52913; 1.
DR SUPFAM; SSF55205; SSF55205; 2.
DR TIGRFAMs; TIGR03399; RNA_3prim_cycl; 1.
PE 3: Inferred from homology;
KW ATP-binding; Cytoplasm; Ligase; Nucleotide-binding.
FT CHAIN 1..347
FT /note="RNA 3'-terminal phosphate cyclase"
FT /id="PRO_1000099356"
FT ACT_SITE 312
FT /note="Tele-AMP-histidine intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00200"
FT BINDING 101
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00200"
FT BINDING 286..289
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00200"
SQ SEQUENCE 347 AA; 36649 MW; 709FB0EB3424C673 CRC64;
MAVRIDGSYG EGGGQILRTS IALSALLGKP VEIVNIRAKR ANPGLQPQHL TGVSAAALLT
DAEVEGAAKG STRLFFKPKA LKCGTFNIDI GTAGSISLVV QTLAPILLYA PCPTKLVITG
GTDVAWAPPI DYMRFVFARY LTRFGARIAI ELVKRGHYPR GGGKAVVQAE PAGRLRAVDS
VEFGRPAKIA GVSHAVNLPP HVAERQARAA REALAKLGYA AEVEVEARND GLGPGSGVVL
WAESDVGNVV GGDALGERGK PAEEVGREAA EKLAAVLKAG ASLDPHMADM VVLYMALAQG
RSRLSTTEAT MHLQTNIYIV EQFLPVKFKL ERAGPRYIIE VEGVGYP
