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RTCA_SALTY
ID   RTCA_SALTY              Reviewed;         339 AA.
AC   Q8ZLI0;
DT   27-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   03-AUG-2022, entry version 113.
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=STM3518;
OS   Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=99287;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LT2 / SGSC1412 / ATCC 700720;
RX   PubMed=11677609; DOI=10.1038/35101614;
RA   McClelland M., Sanderson K.E., Spieth J., Clifton S.W., Latreille P.,
RA   Courtney L., Porwollik S., Ali J., Dante M., Du F., Hou S., Layman D.,
RA   Leonard S., Nguyen C., Scott K., Holmes A., Grewal N., Mulvaney E.,
RA   Ryan E., Sun H., Florea L., Miller W., Stoneking T., Nhan M., Waterston R.,
RA   Wilson R.K.;
RT   "Complete genome sequence of Salmonella enterica serovar Typhimurium LT2.";
RL   Nature 413:852-856(2001).
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; AE006468; AAL22380.1; -; Genomic_DNA.
DR   RefSeq; NP_462421.1; NC_003197.2.
DR   RefSeq; WP_000101027.1; NC_003197.2.
DR   AlphaFoldDB; Q8ZLI0; -.
DR   SMR; Q8ZLI0; -.
DR   STRING; 99287.STM3518; -.
DR   PaxDb; Q8ZLI0; -.
DR   EnsemblBacteria; AAL22380; AAL22380; STM3518.
DR   GeneID; 1255041; -.
DR   KEGG; stm:STM3518; -.
DR   PATRIC; fig|99287.12.peg.3718; -.
DR   HOGENOM; CLU_027882_0_0_6; -.
DR   OMA; PKPGLSH; -.
DR   PhylomeDB; Q8ZLI0; -.
DR   BioCyc; SENT99287:STM3518-MON; -.
DR   Proteomes; UP000001014; 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; IBA:GO_Central.
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; Reference proteome.
FT   CHAIN           1..339
FT                   /note="RNA 3'-terminal phosphate cyclase"
FT                   /id="PRO_0000156421"
FT   ACT_SITE        308
FT                   /note="Tele-AMP-histidine intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00200"
FT   BINDING         103
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00200"
FT   BINDING         283..287
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00200"
SQ   SEQUENCE   339 AA;  35458 MW;  182667CD81E31125 CRC64;
     MARIIALDGA QGEGGGQILR SALSLSMITG QPFEMSGIRA GRAKPGLLRQ HLTAVRAATE
     ICGAQVNGDE LGSQQLRFTP GPIRGGEYRF AIGSAGSCML VLQTVLPALW FADGSSRVEV
     HGGTHNQAAP SADFICRVWE PLLARMGISQ RTTLIKHGFY PAGGGAAATV VEPAASLRGL
     TLISRGETLR TTAEALLAAV PYHVGEREVA TLEAHFPQAE KNVVALEGGC GPGNALSLMI
     QSEQLTELFA AFGVKGTSAE AVANQVAHEA RRYLASPAAV GEHLADQLIL PLALAGEGAF
     TVARASAHLL TNIAVVERFL PVRFSCEATE SGYLVRVSD
 
 
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