construction of three-dimensional structure by homology modeling using a crystal structure of TDP-epi-vancosaminyltransferase as template. Amino acid residues Arg42, Lys91, Ala92, Tyr106, Gly111, Tyr113, Asp115, Asn152, Leu173, Leu219, His221, Arg222, and Glu241 are unique to UGT1A9 as compared with UGT1A7, UGT1A8 and UGT1A10. Molecular dynamics simulation of the structures revealed that Arg42, Leu173, Leu219, His221 and Arg222 as well as residues Lys91, Ala92, Tyr106, Gly111, Tyr113, Asp115, and Glu241 are responsible for the thermal stability |
Homo sapiens |