ID   TRUB_MYCCT              Reviewed;         292 AA.
AC   Q2SSF2;
DT   04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   25-MAY-2022, entry version 89.
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=MCAP_0326;
OS   Mycoplasma capricolum subsp. capricolum (strain California kid / ATCC 27343
OS   / NCTC 10154).
OC   Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae; Mycoplasma.
OX   NCBI_TaxID=340047;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=California kid / ATCC 27343 / NCTC 10154;
RA   Glass J.I., Lartigue C., Pfannkoch C., Baden-Tillson H., Smith H.O.,
RA   Venter J.C., Roske K., Wise K.S., Calcutt M.J., Nelson W.C., Nierman W.C.;
RL   Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases.
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; CP000123; ABC01192.1; -; Genomic_DNA.
DR   RefSeq; WP_011387212.1; NC_007633.1.
DR   AlphaFoldDB; Q2SSF2; -.
DR   SMR; Q2SSF2; -.
DR   EnsemblBacteria; ABC01192; ABC01192; MCAP_0326.
DR   GeneID; 23778718; -.
DR   KEGG; mcp:MCAP_0326; -.
DR   HOGENOM; CLU_032087_0_2_14; -.
DR   OMA; ELQFIRW; -.
DR   OrthoDB; 1166299at2; -.
DR   PhylomeDB; Q2SSF2; -.
DR   Proteomes; UP000001928; 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; cd02573; PseudoU_synth_EcTruB; 1.
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; tRNA processing.
FT   CHAIN           1..292
FT                   /note="tRNA pseudouridine synthase B"
FT                   /id="PRO_0000229362"
FT   ACT_SITE        40
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01080"
SQ   SEQUENCE   292 AA;  33512 MW;  5553B0F219FDF7E8 CRC64;
     MQKSGIFILN KPKNISTYQL INQVKKKLNI KKVGHCGTLD LLATGVVICL VNNATKISDY
     LLNANKAYQV KIKLFTLTDS YDGEGNIIQT QIPFDISLDQ INKVISKYNN YSYEQYPPIY
     SSIKVNGKKL YQYALANQDV EIKSRKVTIF KTKLLNYDQK NYEIFLDVKC SKGTYIRSLA
     IDICKDLNTI GYVVELNRTL SGNFDINSAI DIKDLSWKHL TSIYDAVKIN DFKVVKYHNI
     LDVKQGKKIV LNNIKDQLVF ISDEQNNILA VYQKYENNIF KVKRGGLNND IY