Abstract
Human triosephosphate isomerase G122R, also known as TPI-Manchester, is a thermolabile variant detected in a screening of more than 3,400 individuals from a population in Ann Arbor, Michigan. Here, the crystallographic structure of G122R was solved to determine the molecular basis of its thermal stability. Structural analysis revealed an increase in the flexibility of residues at the dimer interface, even though R122 is about 20 Å away, suggesting that long-range electrostatic interactions may play a key role in the mutation effect.
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Romero, Jorge Miguel, Structural Analysis of the Tpi-Manchester, a Thermolabile Variant of Human Triosephosphate Isomerase. Available at SSRN: https://ssrn.com/abstract=4848610 or http://dx.doi.org/10.2139/ssrn.4848610