Galactose-1-phosphate uridylyltransferase
Structural studies

The three-dimensional structure at 180 pm resolution (x-ray crystallography) of GALT was determined by Wedekind, Frey, and Rayment, and their structural analysis found key amino acids essential for GALT function. Among these are Leu4, Phe75, Asn77, Asp78, Phe79, and Val108, which are consistent with residues that have been implicated both in point mutation experiments as well as in clinical screening that play a role in human galactosemia.
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