ID   TRUB_SYNAS              Reviewed;         312 AA.
AC   Q2LWU1;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-FEB-2006, sequence version 1.
DT   27-MAR-2024, entry version 96.
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};
GN   OrderedLocusNames=SYNAS_26720; ORFNames=SYN_01783;
OS   Syntrophus aciditrophicus (strain SB).
OC   Bacteria; Thermodesulfobacteriota; Syntrophia; Syntrophales; Syntrophaceae;
OC   Syntrophus.
OX   NCBI_TaxID=56780;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SB;
RX   PubMed=17442750; DOI=10.1073/pnas.0610456104;
RA   McInerney M.J., Rohlin L., Mouttaki H., Kim U., Krupp R.S.,
RA   Rios-Hernandez L., Sieber J., Struchtemeyer C.G., Bhattacharyya A.,
RA   Campbell J.W., Gunsalus R.P.;
RT   "The genome of Syntrophus aciditrophicus: life at the thermodynamic limit
RT   of microbial growth.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:7600-7605(2007).
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; CP000252; ABC78551.1; -; Genomic_DNA.
DR   RefSeq; WP_011418570.1; NC_007759.1.
DR   AlphaFoldDB; Q2LWU1; -.
DR   SMR; Q2LWU1; -.
DR   STRING; 56780.SYN_01783; -.
DR   KEGG; sat:SYN_01783; -.
DR   eggNOG; COG0130; Bacteria.
DR   HOGENOM; CLU_032087_0_1_7; -.
DR   InParanoid; Q2LWU1; -.
DR   OrthoDB; 9802309at2; -.
DR   Proteomes; UP000001933; 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   Gene3D; 3.30.2350.10; Pseudouridine synthase; 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   InterPro; IPR032819; TruB_C.
DR   NCBIfam; TIGR00431; TruB; 1.
DR   PANTHER; PTHR13767:SF2; PSEUDOURIDYLATE SYNTHASE TRUB1; 1.
DR   PANTHER; PTHR13767; TRNA-PSEUDOURIDINE SYNTHASE; 1.
DR   Pfam; PF16198; TruB_C_2; 1.
DR   Pfam; PF01509; TruB_N; 1.
DR   SUPFAM; SSF55120; Pseudouridine synthase; 1.
PE   3: Inferred from homology;
KW   Isomerase; Reference proteome; tRNA processing.
FT   CHAIN           1..312
FT                   /note="tRNA pseudouridine synthase B"
FT                   /id="PRO_1000084704"
FT   ACT_SITE        38
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01080"
SQ   SEQUENCE   312 AA;  34305 MW;  11DDAA1854061950 CRC64;
     MDGILILDKS PGKTSQKVVQ EVKRILGVRK AGHAGTLDPL ATGVLPLCLN EATKLVQFLS
     LDDKEYRATM LLGVTTETMD IEGRITDRRE PEVDEVRIRE ALQFFTGPIS QEPPRYSAVK
     FKGRPLYSWA RKGVDIALPP RTVQVYSSIL EEIALPYVTF RVACSKGTYI RTLCADLGER
     LGCGACMSVL RRLRCGCFTL ETAVSLEDIA DGKGRETLLS RVIPLSDGLR NVAAIEISEE
     LSGRIRDGFQ PDGSTLREYH IPSLADGDMV KFLTSSGGLV AVARFLYASD QLAVSDMGQP
     AVRILRVFHD RA
//