ID   TRUA_LACAC              Reviewed;         262 AA.
AC   Q5FM60;
DT   26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2005, sequence version 1.
DT   03-AUG-2022, entry version 85.
DE   RecName: Full=tRNA pseudouridine synthase A {ECO:0000255|HAMAP-Rule:MF_00171};
DE            EC=5.4.99.12 {ECO:0000255|HAMAP-Rule:MF_00171};
DE   AltName: Full=tRNA pseudouridine(38-40) synthase {ECO:0000255|HAMAP-Rule:MF_00171};
DE   AltName: Full=tRNA pseudouridylate synthase I {ECO:0000255|HAMAP-Rule:MF_00171};
DE   AltName: Full=tRNA-uridine isomerase I {ECO:0000255|HAMAP-Rule:MF_00171};
GN   Name=truA {ECO:0000255|HAMAP-Rule:MF_00171}; OrderedLocusNames=LBA0322;
OS   Lactobacillus acidophilus (strain ATCC 700396 / NCK56 / N2 / NCFM).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Lactobacillus.
OX   NCBI_TaxID=272621;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700396 / NCK56 / N2 / NCFM;
RX   PubMed=15671160; DOI=10.1073/pnas.0409188102;
RA   Altermann E., Russell W.M., Azcarate-Peril M.A., Barrangou R., Buck B.L.,
RA   McAuliffe O., Souther N., Dobson A., Duong T., Callanan M., Lick S.,
RA   Hamrick A., Cano R., Klaenhammer T.R.;
RT   "Complete genome sequence of the probiotic lactic acid bacterium
RT   Lactobacillus acidophilus NCFM.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:3906-3912(2005).
CC   -!- FUNCTION: Formation of pseudouridine at positions 38, 39 and 40 in the
CC       anticodon stem and loop of transfer RNAs. {ECO:0000255|HAMAP-
CC       Rule:MF_00171}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=uridine(38/39/40) in tRNA = pseudouridine(38/39/40) in tRNA;
CC         Xref=Rhea:RHEA:22376, Rhea:RHEA-COMP:10085, Rhea:RHEA-COMP:10087,
CC         ChEBI:CHEBI:65314, ChEBI:CHEBI:65315; EC=5.4.99.12;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00171};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00171}.
CC   -!- SIMILARITY: Belongs to the tRNA pseudouridine synthase TruA family.
CC       {ECO:0000255|HAMAP-Rule:MF_00171}.
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DR   EMBL; CP000033; AAV42214.1; -; Genomic_DNA.
DR   RefSeq; WP_003549053.1; NC_006814.3.
DR   RefSeq; YP_193245.1; NC_006814.3.
DR   AlphaFoldDB; Q5FM60; -.
DR   SMR; Q5FM60; -.
DR   STRING; 272621.LBA0322; -.
DR   PRIDE; Q5FM60; -.
DR   EnsemblBacteria; AAV42214; AAV42214; LBA0322.
DR   GeneID; 56941928; -.
DR   KEGG; lac:LBA0322; -.
DR   PATRIC; fig|272621.13.peg.308; -.
DR   eggNOG; COG0101; Bacteria.
DR   HOGENOM; CLU_014673_0_1_9; -.
DR   OMA; FLYGMVR; -.
DR   BioCyc; LACI272621:G1G49-316-MON; -.
DR   Proteomes; UP000006381; 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; cd02570; PseudoU_synth_EcTruA; 1.
DR   Gene3D; 3.30.70.580; -; 1.
DR   Gene3D; 3.30.70.660; -; 1.
DR   HAMAP; MF_00171; TruA; 1.
DR   InterPro; IPR020103; PsdUridine_synth_cat_dom_sf.
DR   InterPro; IPR001406; PsdUridine_synth_TruA.
DR   InterPro; IPR020097; PsdUridine_synth_TruA_a/b_dom.
DR   InterPro; IPR020095; PsdUridine_synth_TruA_C.
DR   InterPro; IPR020094; TruA/RsuA/RluB/E/F_N.
DR   PANTHER; PTHR11142; PTHR11142; 1.
DR   Pfam; PF01416; PseudoU_synth_1; 2.
DR   PIRSF; PIRSF001430; tRNA_psdUrid_synth; 1.
DR   SUPFAM; SSF55120; SSF55120; 1.
DR   TIGRFAMs; TIGR00071; hisT_truA; 1.
PE   3: Inferred from homology;
KW   Isomerase; Reference proteome; tRNA processing.
FT   CHAIN           1..262
FT                   /note="tRNA pseudouridine synthase A"
FT                   /id="PRO_0000057393"
FT   ACT_SITE        54
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00171"
FT   BINDING         113
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00171"
SQ   SEQUENCE   262 AA;  30575 MW;  8981D4FD7A66ED18 CRC64;
     MLTRYKMTMA YDGHLFHGFQ LQPDQRTVQG TVEDALKKMT KGKRIIVQGS GRTDAGVHAI
     GQVIHFDYPG KEIPANRMIL ALNSMMPTDI VFTDCQIVDE DFHARYSIKG KWYRYRLSLD
     YFVNPFKRFY TGHFPYQLDL EKMRIAAQDL LGKHDFTSFA ASGGQIKDKV RTIYYINITK
     DEKENEIVFD FIGSGFLYNM VRIMVAALLE IGNERRPLHD LRRVIAAKDR QEVRQTAQGS
     GLYLYHVFYD EIPQKYRQDQ YL