Finally, the structural implications of these ACE mutations were examined by molecular modelling, which suggested some important structural alterations such as disruption of intra-molecular non-covalent interactions (e.g. salt bridges).
The exception was the A441F mutant, which showed lower kcat/ Km values for both BAL and APAL than the wild-type and the other mutant enzymes, which suggest important structural alterations in the active site of this mutant.
Another important structural feature involves the alteration of conformation of the β2 α2 loop region and the subsequent exposure of hydrophobic cluster to solvent, which facilitates intermolecular interactions involved in spontaneous generation of PrPSc.
The results of these analyses in turn supported the important hypothesis that structural alterations to region 3 might modulate the observed allosteric activation.
As alteration of lipid rafts was suggested in CerS2‐null mice (Silva et al., 2012; Park et al., 2013) and SLs are important structural component of membranes, altering the SL composition might cause changes in lipid rafts.
The activation of EGFR via overexpression of the receptor and/or ligands or its structural alteration, affects a number of processes important to cancer development and progression, including cell proliferation, apoptosis, angiogenesis, and metastasis [ 5- 7].
The cell surface structure is important for biofilm formation and host association of the organisms and structural alteration can provide niche adaption and phage defence [ 19, 26- 28].
The T309V mutation resulted in significant topological alteration suggesting that, in addition to its potential role in dioxygen activation, Thr309 plays an important structural role within the active site crevice.
(ii) Identification of the prescribed improvement or structural alteration.
But Obama's most far-reaching accomplishment is his structural alteration of the U.S. budget.
