ID TRUB_PICTO Reviewed; 349 AA.
AC Q6L1A0;
DT 26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT 05-JUL-2004, sequence version 1.
DT 27-MAR-2024, entry version 104.
DE RecName: Full=Probable tRNA pseudouridine synthase B {ECO:0000255|HAMAP-Rule:MF_01081};
DE EC=5.4.99.25 {ECO:0000255|HAMAP-Rule:MF_01081};
DE AltName: Full=tRNA pseudouridine(55) synthase {ECO:0000255|HAMAP-Rule:MF_01081};
DE Short=Psi55 synthase {ECO:0000255|HAMAP-Rule:MF_01081};
DE AltName: Full=tRNA pseudouridylate synthase {ECO:0000255|HAMAP-Rule:MF_01081};
DE AltName: Full=tRNA-uridine isomerase {ECO:0000255|HAMAP-Rule:MF_01081};
GN Name=truB {ECO:0000255|HAMAP-Rule:MF_01081}; OrderedLocusNames=PTO0667;
OS Picrophilus torridus (strain ATCC 700027 / DSM 9790 / JCM 10055 / NBRC
OS 100828 / KAW 2/3).
OC Archaea; Candidatus Thermoplasmatota; Thermoplasmata; Thermoplasmatales;
OC Picrophilaceae; Picrophilus.
OX NCBI_TaxID=1122961;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700027 / DSM 9790 / JCM 10055 / NBRC 100828 / KAW 2/3;
RX PubMed=15184674; DOI=10.1073/pnas.0401356101;
RA Fuetterer O., Angelov A., Liesegang H., Gottschalk G., Schleper C.,
RA Schepers B., Dock C., Antranikian G., Liebl W.;
RT "Genome sequence of Picrophilus torridus and its implications for life
RT around pH 0.";
RL Proc. Natl. Acad. Sci. U.S.A. 101:9091-9096(2004).
CC -!- FUNCTION: Could be responsible for synthesis of pseudouridine from
CC uracil-55 in the psi GC loop of transfer RNAs. {ECO:0000255|HAMAP-
CC Rule:MF_01081}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=uridine(55) in tRNA = pseudouridine(55) in tRNA;
CC Xref=Rhea:RHEA:42532, Rhea:RHEA-COMP:10101, Rhea:RHEA-COMP:10102,
CC ChEBI:CHEBI:65314, ChEBI:CHEBI:65315; EC=5.4.99.25;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01081};
CC -!- SIMILARITY: Belongs to the pseudouridine synthase TruB family. Type 2
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01081}.
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DR EMBL; AE017261; AAT43252.1; -; Genomic_DNA.
DR RefSeq; WP_011177468.1; NC_005877.1.
DR AlphaFoldDB; Q6L1A0; -.
DR SMR; Q6L1A0; -.
DR STRING; 263820.PTO0667; -.
DR PaxDb; 263820-PTO0667; -.
DR GeneID; 2843985; -.
DR KEGG; pto:PTO0667; -.
DR PATRIC; fig|263820.9.peg.700; -.
DR eggNOG; arCOG00987; Archaea.
DR HOGENOM; CLU_032087_3_0_2; -.
DR InParanoid; Q6L1A0; -.
DR OrthoDB; 35866at2157; -.
DR Proteomes; UP000000438; Chromosome.
DR GO; GO:0003723; F:RNA binding; IEA:InterPro.
DR GO; GO:0106029; F:tRNA pseudouridine synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0031119; P:tRNA pseudouridine synthesis; IEA:UniProtKB-UniRule.
DR CDD; cd07953; PUA; 1.
DR Gene3D; 3.30.2350.10; Pseudouridine synthase; 1.
DR Gene3D; 2.30.130.10; PUA domain; 1.
DR HAMAP; MF_01081; TruB_arch; 1.
DR InterPro; IPR020103; PsdUridine_synth_cat_dom_sf.
DR InterPro; IPR002501; PsdUridine_synth_N.
DR InterPro; IPR002478; PUA.
DR InterPro; IPR015947; PUA-like_sf.
DR InterPro; IPR036974; PUA_sf.
DR InterPro; IPR004802; tRNA_PsdUridine_synth_B_fam.
DR InterPro; IPR026326; TruB_arch.
DR InterPro; IPR032819; TruB_C.
DR NCBIfam; TIGR00425; CBF5; 1.
DR PANTHER; PTHR23127; CENTROMERE/MICROTUBULE BINDING PROTEIN CBF5; 1.
DR PANTHER; PTHR23127:SF0; H_ACA RIBONUCLEOPROTEIN COMPLEX SUBUNIT DKC1; 1.
DR Pfam; PF01472; PUA; 1.
DR Pfam; PF16198; TruB_C_2; 1.
DR Pfam; PF01509; TruB_N; 1.
DR SMART; SM00359; PUA; 1.
DR SUPFAM; SSF55120; Pseudouridine synthase; 1.
DR SUPFAM; SSF88697; PUA domain-like; 1.
DR PROSITE; PS50890; PUA; 1.
PE 3: Inferred from homology;
KW Isomerase; tRNA processing.
FT CHAIN 1..349
FT /note="Probable tRNA pseudouridine synthase B"
FT /id="PRO_0000121965"
FT DOMAIN 207..279
FT /note="PUA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01081"
FT REGION 300..349
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 300..314
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 41
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01081"
SQ SEQUENCE 349 AA; 39148 MW; 6A52C6699459924D CRC64;
MSNLNGFIVV DKPKGPTSHQ IDSWIRDITG EPRVGHIGTL DPGVSGVLVM ALGKATKLID
IVHRESKEYV SVLRTYDKYD HDSIKSVFKE FTGKIYQIPP VRSAVSRELR IREIYNLELL
EMDEKFVLFK VCCESGTYIR TLCTDIGYVL GSGGQMAELR RTRTGPFDES MCHTLQEVSD
AFKLKSMGNE KLFKNIFIPM DFIFIKYPKV IVKETALKNI AHGSDIYPAG IHAITGSPKK
GDVVAVYTEK NELVATGTMM VNADEIYDLK VIDIDNVLIE TGDNDGKDSL VRKDNRWKDI
PVQKPERKLH GNLQGSQEWK DTGNRGNPKR GGTGSKGFSS GFRKRKAKR
//
