ID   TUSB_BUCAP              Reviewed;          95 AA.
AC   Q8K946;
DT   15-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   03-AUG-2022, entry version 92.
DE   RecName: Full=Protein TusB {ECO:0000255|HAMAP-Rule:MF_01564};
DE   AltName: Full=tRNA 2-thiouridine synthesizing protein B {ECO:0000255|HAMAP-Rule:MF_01564};
GN   Name=tusB {ECO:0000255|HAMAP-Rule:MF_01564}; OrderedLocusNames=BUsg_511;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
CC   -!- FUNCTION: Part of a sulfur-relay system required for 2-thiolation of 5-
CC       methylaminomethyl-2-thiouridine (mnm(5)s(2)U) at tRNA wobble positions.
CC       {ECO:0000255|HAMAP-Rule:MF_01564}.
CC   -!- SUBUNIT: Heterohexamer, formed by a dimer of trimers. The hexameric
CC       TusBCD complex contains 2 copies each of TusB, TusC and TusD. The
CC       TusBCD complex interacts with TusE. {ECO:0000255|HAMAP-Rule:MF_01564}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01564}.
CC   -!- SIMILARITY: Belongs to the DsrH/TusB family. {ECO:0000255|HAMAP-
CC       Rule:MF_01564}.
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DR   EMBL; AE013218; AAM68054.1; -; Genomic_DNA.
DR   RefSeq; WP_011054020.1; NC_004061.1.
DR   AlphaFoldDB; Q8K946; -.
DR   SMR; Q8K946; -.
DR   STRING; 198804.BUsg_511; -.
DR   EnsemblBacteria; AAM68054; AAM68054; BUsg_511.
DR   KEGG; bas:BUsg_511; -.
DR   eggNOG; COG2168; Bacteria.
DR   HOGENOM; CLU_166087_2_1_6; -.
DR   OMA; MLHTINK; -.
DR   OrthoDB; 1995110at2; -.
DR   Proteomes; UP000000416; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0002143; P:tRNA wobble position uridine thiolation; IEA:InterPro.
DR   Gene3D; 3.40.1260.10; -; 1.
DR   HAMAP; MF_01564; Thiourid_synth_B; 1.
DR   InterPro; IPR027396; DsrEFH-like.
DR   InterPro; IPR023526; Sulphur_relay_TusB.
DR   InterPro; IPR007215; Sulphur_relay_TusB/DsrH.
DR   PANTHER; PTHR37526; PTHR37526; 1.
DR   Pfam; PF04077; DsrH; 1.
DR   SUPFAM; SSF75169; SSF75169; 1.
DR   TIGRFAMs; TIGR03011; sulf_tusB_dsrH; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; tRNA processing.
FT   CHAIN           1..95
FT                   /note="Protein TusB"
FT                   /id="PRO_0000216260"
SQ   SEQUENCE   95 AA;  10992 MW;  51E8A2023BE57141 CRC64;
     MLHTLMKSPF ETNISFFSGM LKKTDDFLAL QDGVLIALID NIFLKKITFS SENLYVIKED
     VYARGIHKNI SSSFILISYI DFVNLTLKNK KQIIW