QTRT1 also known as queuine tRNA-ribosyltransferase. QTRT1 interacts with QTRTD1 to form an active queuine tRNA-ribosyltransferase. This enzyme exchanges queuine for the guanine at the wobble position of tRNAs with GUN anticodons (tRNA-Asp, -Asn, -His and -Tyr), thereby forming the hypermodified nucleoside queuosine (Q) (7-(((4,5-cis-dihydroxy-2-cyclopenten-1-yl) amino) methyl)-7-deazaguanosine). Source: Recombinant protein corresponding to aa1-403 of human QTRT1, fused to His-tag at N-terminal expressed in E. coli. Molecular Weight: ~46.7kD AA Sequence: MGSSHHHHHH SSGLVPRGSH MGSEFMAGAA TQASLESAPR IMRLVAECSR SRARAGELWL PHGTVATPVF MPVGTQATMK GITTEQLDAL GCRICLGNTY HLGLRPGPEL IQKANGLHGF MNWPHNLLTD SGGFQMVSLV SLSEVTEEGV RFRSPYDGNE TLLSPEKSVQ IQNALGSDII MQLDDVVSST VTGPRVEEAM YRSIRWLDRC IAAHQRPDKQ NLFAIIQGGL DADLRATCLE EMTKRDVPGF AIGGLSGGES KSQFWRMVAL STSRLPKDKP RYLMGVGYAT DLVVCVALGC DMFDCVFPTR TARFGSALVP TGNLQLRKKV FEKDFGPIDP ECTCPTCQKH SRAFLHALLH SDNTAALHHL TVHNIAYQLQ LMSAVRTSIV EKRFPDFVRD FMGAMYGDPT LCPTWATDAL ASVGITLG Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 6 months after receipt at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
