In this study, the Talaromyces thermophilus lipase was engineered by altering its crevice-like binding site for efficient synthesis of chiral intermediate of Pregablin through kinetic resolution of 2-carboxyethyl-3-cyano-5-methylhexanoic acid ethyl ester (CNDE).
Also, myosin IIA, a molecular motor involved in vesicle and protein trafficking along actin filaments, requires its actin binding domain for efficient endocytosis of CXCR4 [41].
Altogether, these results demonstrate the importance of the intragenic AP-1 binding sites for efficient HIV-1 replication in macrophages as a decrease in viral expression of AP-1 site mutant viruses, and especially of the AP-1#2 site mutant virus, was detected in transduction of primary MDMs with VSV-G pseudotyped viruses (during single-round infections).
It is quite likely that this perturbation is deleterious for binding and for efficient catalysis.
These nucleases require a 5′-CNNNG-3′ motif spaced at an appropriate distance from the binding site for efficient cleavage, because mutation of the CNNNG motif abolished cleavage by the Tev-LHE or Tev-ZFEs.
Our results demonstrate that coordinated interactions among loops β1 β2, β6 β7, and β8 β9 are essential for the formation of a functional ligand-binding site, as evidenced by [125I]-α-bungarotoxin-binding, and for efficient protein secretion.
It is reasonable to hypothesize that the bacterium has retained multiple paralogs involved in copper binding for more efficient uptake and regulation, while the copper resistance protein CopC in M. gilvum may enhance the survival of the bacterium under extreme copper stress, as is the case e.g. with the copper resistance protein PcoC in E. coli [ 46].
Our results present CasRx as a programmable RNA-binding module for efficient targeting of cellular RNA, enabling a general platform for transcriptome engineering and future therapeutic development.
Most eukaryotic mRNA needs a functional cap-binding complex for efficient translational initiation.
An analysis of a series of truncation variants of pTAL revealed that a region encompassing approximately 150 amino acids upstream of the DNA-binding domain is essential for efficient binding to a target site, whereas the C-terminal domain is dispensable for the interaction with DNA (Miller et al., 2011; Mussolino et al., 2011; Zhang et al., 2011).
