>pfam01702 TGT Queuine tRNA-ribosyltransferase. This is a family of queuine tRNA-ribosyltransferases EC:2.4.2.29, also known as tRNA-guanine transglycosylase and guanine insertion enzyme. Queuine tRNA-ribosyltransferase modifies tRNAs for asparagine, aspartic acid, histidine and tyrosine with queuine. It catalyses the exchange of guanine-34 at the wobble position with 7-aminomethyl-7-deazaguanine, and the addition of a cyclopentenediol moiety to 7-aminomethyl-7-deazaguanine-34 tRNA; giving a hypermodified base queuine in the wobble position. The aligned region contains a zinc binding motif C-x-C-x2-C-x29-H, and important tRNA and 7-aminomethyl-7deazaguanine binding residues.

Probab=92.37  E-value=0.87  Score=26.35  Aligned_cols=17  Identities=18%  Similarity=0.110  Sum_probs=6.7

Q ss_pred             HHHHHHHHCCCCCCCEE
Q ss_conf             97534321024432001
Q gi|254780276|r   87 ELAQYAHSIGADALLVV  103 (292)
Q Consensus        87 ~~a~~a~~~Gad~i~v~  103 (292)
T Consensus        72 ~s~~~l~~~~~~GyaIg   88 (238)
T pfam01702        72 ESAEELAELDFDGYAIG   88 (238)
T ss_pred             HHHHHHHCCCCCEEEEC
T ss_conf             99999744899879856