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Protein

RNA 3'-terminal phosphate cyclase

Gene

rtcA

Organism
Escherichia coli O9:H4 (strain HS)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

Catalyzes the conversion of 3'-phosphate to a 2',3'-cyclic phosphodiester at the end of RNA. The mechanism of action of the enzyme occurs in 3 steps: (A) adenylation of the enzyme by ATP; (B) transfer of adenylate to an RNA-N3'P to produce RNA-N3'PP5'A; (C) and attack of the adjacent 2'-hydroxyl on the 3'-phosphorus in the diester linkage to produce the cyclic end product. The biological role of this enzyme is unknown but it is likely to function in some aspects of cellular RNA processing.UniRule annotation

Catalytic activityi

ATP + (RNA)-3'-(3'-phospho-ribonucleoside) = AMP + diphosphate + (RNA)-3'-(2',3'-cyclophospho)-ribonucleoside.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei103ATPUniRule annotation1
Active sitei308Tele-AMP-histidine intermediateUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi283 – 287ATPUniRule annotation5

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionLigase
LigandATP-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
RNA 3'-terminal phosphate cyclaseUniRule annotation (EC:6.5.1.4UniRule annotation)
Short name:
RNA cyclaseUniRule annotation
Short name:
RNA-3'-phosphate cyclaseUniRule annotation
Gene namesi
Name:rtcAUniRule annotation
Ordered Locus Names:EcHS_A3617
OrganismiEscherichia coli O9:H4 (strain HS)
Taxonomic identifieri331112 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10000585621 – 338RNA 3'-terminal phosphate cyclaseAdd BLAST338

Structurei

3D structure databases

ProteinModelPortaliA8A5M8
SMRiA8A5M8
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the RNA 3'-terminal cyclase family. Type 1 subfamily.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000015264
KOiK01974
OMAiANRPKPG

Family and domain databases

Gene3Di3.30.360.20, 1 hit
3.65.10.20, 2 hits
HAMAPiMF_00200 RTC, 1 hit
InterProiView protein in InterPro
IPR013791 RNA3'-term_phos_cycl_insert
IPR023797 RNA3'_phos_cyclase_dom
IPR037136 RNA3'_phos_cyclase_dom_sf
IPR000228 RNA3'_term_phos_cyc
IPR017770 RNA3'_term_phos_cyc_type_1
IPR020719 RNA3'_term_phos_cycl-like_CS
IPR013792 RNA3'P_cycl/enolpyr_Trfase_a/b
IPR036553 RPTC_insert
PANTHERiPTHR11096 PTHR11096, 1 hit
PTHR11096:SF0 PTHR11096:SF0, 1 hit
PfamiView protein in Pfam
PF01137 RTC, 1 hit
PF05189 RTC_insert, 1 hit
PIRSFiPIRSF005378 RNA3'_term_phos_cycl_euk, 1 hit
SUPFAMiSSF52913 SSF52913, 1 hit
SSF55205 SSF55205, 2 hits
TIGRFAMsiTIGR03399 RNA_3prim_cycl, 1 hit
PROSITEiView protein in PROSITE
PS01287 RTC, 1 hit

Sequencei

Sequence statusi: Complete.

A8A5M8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKRMIALDGA QGEGGGQILR SALSLSMITG QPFTITGIRA GRAKPGLLRQ
60 70 80 90 100
HLTAVKAAAE ICRATVEGAE LGSQRLLFRP GTVRGGDYRF AIGSAGSCTL
110 120 130 140 150
VLQTVLPALW FADGPSRVEV SGGTDNPSAP PADFIRRVLE PLLAKMGIHQ
160 170 180 190 200
QTTLLRHGFY PAGGGVVATE VSPVASFNTL QLGERGNIVQ MRGEVLLAGV
210 220 230 240 250
PRHVAEREIA TLAGSFSLHE QNIHNLPRDQ GPGNTVSLEV ESENITERFF
260 270 280 290 300
VVGEKRVSAE VVAAQLVKEV KRYLASTAAV GEYLADQLVL PMALAGAGEF
310 320 330
TVAHPSCHLL TNIAVVERFL PVRFSLIETD GVTRVSIE
Length:338
Mass (Da):35,960
Last modified:October 23, 2007 - v1
Checksum:i1E4B20199D1389AD
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000802 Genomic DNA Translation: ABV07832.1
RefSeqiWP_001300557.1, NC_009800.1

Genome annotation databases

EnsemblBacteriaiABV07832; ABV07832; EcHS_A3617
KEGGiecx:EcHS_A3617

Similar proteinsi

Entry informationi

Entry nameiRTCA_ECOHS
AccessioniPrimary (citable) accession number: A8A5M8
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 5, 2008
Last sequence update: October 23, 2007
Last modified: March 28, 2018
This is version 68 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

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