ID D9Q1P1_ACIS3 Unreviewed; 353 AA.
AC D9Q1P1;
DT 05-OCT-2010, integrated into UniProtKB/TrEMBL.
DT 05-OCT-2010, sequence version 1.
DT 27-MAR-2024, entry version 67.
DE RecName: Full=RNA 3'-terminal phosphate cyclase {ECO:0000256|ARBA:ARBA00021428, ECO:0000256|HAMAP-Rule:MF_00200};
DE Short=RNA cyclase {ECO:0000256|HAMAP-Rule:MF_00200};
DE Short=RNA-3'-phosphate cyclase {ECO:0000256|HAMAP-Rule:MF_00200};
DE EC=6.5.1.4 {ECO:0000256|HAMAP-Rule:MF_00200};
GN Name=rtcA {ECO:0000256|HAMAP-Rule:MF_00200};
GN OrderedLocusNames=ASAC_0823 {ECO:0000313|EMBL:ADL19229.1};
OS Acidilobus saccharovorans (strain DSM 16705 / JCM 18335 / VKM B-2471 /
OS 345-15).
OC Archaea; Thermoproteota; Thermoprotei; Acidilobales; Acidilobaceae;
OC Acidilobus.
OX NCBI_TaxID=666510 {ECO:0000313|EMBL:ADL19229.1, ECO:0000313|Proteomes:UP000000346};
RN [1] {ECO:0000313|EMBL:ADL19229.1, ECO:0000313|Proteomes:UP000000346}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16705 / JCM 18335 / VKM B-2471 / 345-15
RC {ECO:0000313|Proteomes:UP000000346};
RX PubMed=20581186; DOI=10.1128/AEM.00599-10;
RA Mardanov A.V., Svetlitchnyi V.A., Beletsky A.V., Prokofeva M.I.,
RA Bonch-Osmolovskaya E.A., Ravin N.V., Skryabin K.G.;
RT "The genome sequence of the crenarchaeon Acidilobus saccharovorans supports
RT a new order, Acidilobales, and suggests an important ecological role in
RT terrestrial acidic hot springs.";
RL Appl. Environ. Microbiol. 76:5652-5657(2010).
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:0000256|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:0000256|HAMAP-Rule:MF_00200};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00200}.
CC -!- SIMILARITY: Belongs to the RNA 3'-terminal cyclase family. Type 1
CC subfamily. {ECO:0000256|ARBA:ARBA00009206, ECO:0000256|HAMAP-
CC Rule:MF_00200}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00200}.
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DR EMBL; CP001742; ADL19229.1; -; Genomic_DNA.
DR RefSeq; WP_013266741.1; NC_014374.1.
DR AlphaFoldDB; D9Q1P1; -.
DR STRING; 666510.ASAC_0823; -.
DR GeneID; 9499058; -.
DR KEGG; asc:ASAC_0823; -.
DR eggNOG; arCOG04125; Archaea.
DR HOGENOM; CLU_027882_0_0_2; -.
DR InParanoid; D9Q1P1; -.
DR OrthoDB; 7994at2157; -.
DR Proteomes; UP000000346; 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 CDD; cd00874; RNA_Cyclase_Class_II; 1.
DR Gene3D; 3.65.10.20; RNA 3'-terminal phosphate cyclase domain; 1.
DR Gene3D; 3.30.360.20; RNA 3'-terminal phosphate cyclase, insert domain; 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; IPR020719; RNA3'_term_phos_cycl-like_CS.
DR InterPro; IPR013792; RNA3'P_cycl/enolpyr_Trfase_a/b.
DR InterPro; IPR036553; RPTC_insert.
DR NCBIfam; TIGR03399; RNA_3prim_cycl; 1.
DR PANTHER; PTHR11096; RNA 3' TERMINAL PHOSPHATE CYCLASE; 1.
DR PANTHER; PTHR11096:SF0; RNA 3'-TERMINAL PHOSPHATE CYCLASE; 1.
DR Pfam; PF01137; RTC; 1.
DR Pfam; PF05189; RTC_insert; 1.
DR PIRSF; PIRSF005378; RNA3'_term_phos_cycl_euk; 1.
DR SUPFAM; SSF55205; EPT/RTPC-like; 1.
DR PROSITE; PS01287; RTC; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_00200}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00200};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_00200};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00200}; Reference proteome {ECO:0000313|Proteomes:UP000000346}.
FT DOMAIN 10..328
FT /note="RNA 3'-terminal phosphate cyclase"
FT /evidence="ECO:0000259|Pfam:PF01137"
FT DOMAIN 183..281
FT /note="RNA 3'-terminal phosphate cyclase insert"
FT /evidence="ECO:0000259|Pfam:PF05189"
FT ACT_SITE 316
FT /note="Tele-AMP-histidine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00200"
FT BINDING 102
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00200"
SQ SEQUENCE 353 AA; 37366 MW; 93ED862AA6CAC416 CRC64;
MKVLQVDGSM GEGGGQVLRT SLALAAVLGV PVRVYNIRVK RSRPGLQHQH LESVKAIEEM
SHGKVEGARL GSTEVTLYPG KISGGEYSFD IGTAGSITLL LQAIMPLMVA AEGEVKVRVR
GGTDVPKSPP IDYYRFVLRP LLSKFNVELD LDLIRRGHYP RGGGEVVVKV RRNGALRPVD
LVRAGRLIRI EGLSHCVRLP AHVAIRQARA ASEALSGLGV PVNIEAEHYE GRPDPHLGPG
SGIVVWALTE NSVLGGDSLG EKGKPAERVG REAATSLMQD LLTGMALDRH SSDMLLIYAV
LGSGVSRLGG ASLTSHASTV VELIKIMAPE ASISVEGKPG SPFTATVKGL GLL
//
