ID   TRUB_UREPA              Reviewed;         227 AA.
AC   Q9PQD7;
DT   04-MAY-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   25-MAY-2022, entry version 105.
DE   RecName: Full=tRNA pseudouridine synthase B {ECO:0000255|HAMAP-Rule:MF_01080};
DE            EC=5.4.99.25 {ECO:0000255|HAMAP-Rule:MF_01080};
DE   AltName: Full=tRNA pseudouridine(55) synthase {ECO:0000255|HAMAP-Rule:MF_01080};
DE            Short=Psi55 synthase {ECO:0000255|HAMAP-Rule:MF_01080};
DE   AltName: Full=tRNA pseudouridylate synthase {ECO:0000255|HAMAP-Rule:MF_01080};
DE   AltName: Full=tRNA-uridine isomerase {ECO:0000255|HAMAP-Rule:MF_01080};
GN   Name=truB {ECO:0000255|HAMAP-Rule:MF_01080}; OrderedLocusNames=UU354;
OS   Ureaplasma parvum serovar 3 (strain ATCC 700970).
OC   Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae; Ureaplasma.
OX   NCBI_TaxID=273119;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700970;
RX   PubMed=11048724; DOI=10.1038/35037619;
RA   Glass J.I., Lefkowitz E.J., Glass J.S., Heiner C.R., Chen E.Y.,
RA   Cassell G.H.;
RT   "The complete sequence of the mucosal pathogen Ureaplasma urealyticum.";
RL   Nature 407:757-762(2000).
CC   -!- FUNCTION: Responsible for synthesis of pseudouridine from uracil-55 in
CC       the psi GC loop of transfer RNAs. {ECO:0000255|HAMAP-Rule:MF_01080}.
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_01080};
CC   -!- SIMILARITY: Belongs to the pseudouridine synthase TruB family. Type 1
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_01080}.
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DR   EMBL; AF222894; AAF30763.1; -; Genomic_DNA.
DR   RefSeq; WP_006688525.1; NC_002162.1.
DR   AlphaFoldDB; Q9PQD7; -.
DR   SMR; Q9PQD7; -.
DR   STRING; 273119.UU354; -.
DR   EnsemblBacteria; AAF30763; AAF30763; UU354.
DR   GeneID; 29672408; -.
DR   KEGG; uur:UU354; -.
DR   eggNOG; COG0130; Bacteria.
DR   HOGENOM; CLU_032087_2_0_14; -.
DR   OMA; ELQFIRW; -.
DR   Proteomes; UP000000423; 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   HAMAP; MF_01080; TruB_bact; 1.
DR   InterPro; IPR020103; PsdUridine_synth_cat_dom_sf.
DR   InterPro; IPR002501; PsdUridine_synth_N.
DR   InterPro; IPR014780; tRNA_psdUridine_synth_TruB.
DR   PANTHER; PTHR13767; PTHR13767; 1.
DR   Pfam; PF01509; TruB_N; 1.
DR   SUPFAM; SSF55120; SSF55120; 1.
DR   TIGRFAMs; TIGR00431; TruB; 1.
PE   3: Inferred from homology;
KW   Isomerase; Reference proteome; tRNA processing.
FT   CHAIN           1..227
FT                   /note="tRNA pseudouridine synthase B"
FT                   /id="PRO_0000121937"
FT   ACT_SITE        42
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01080"
SQ   SEQUENCE   227 AA;  25765 MW;  FA1CADC357D6AD36 CRC64;
     MSAISKNIII INKPIKWTSN DVVQKVKRVI GAKKVGHAGT LDPNASGVLV LGINEGTKLL
     TKLILDNKSY IAEIKFGTST NTYDAAGEIV SSTNRMVTLT EVTKIVKDFY KNDYWQKPPQ
     FSALKINGQK AYVLARQKVD FEIAPRLVKI FKYQIMDFNY EKQILKISLH VSKGFYVRSF
     AVDLATKINN LAHLLTLIRT QSGPFEIKDA IEIEQVYDYW NNINKYL