The other anion binding site which reverses the red shift of the absorption spectra is not affected. Interestingly a positively charged amino acid (either lysine or arginine) corresponding to arg175 is conserved in 12 halorhodopsin sequences in molecules which serve as anion transport proteins....
The model accounts for a variety of interactions, including pi-pi interactions among tyrosine and phenylalanine residues, cation-pi interactions between arginine and aromatic residues, electrostatic interactions, and contributions to the solvation volume from spacer residues. Here, because we perform ...
Two types of LCDs participate in this process: positively charged arginine–glycine–glycine (RGG) repeats, which act as a PAR sensor, and prion-like protein domains, which amplify the PAR-seeded liquid demixing. The assembly of IDPs at DNA break sites is short-lived and countered by ...
The three continuously conserved arginines (Arg68, Arg69, and Arg70) are located together in the α3 helix of LC3B, which may form a local positively charged area and serve as a potential protein-protein interaction sites. As mentioned above, only Arg68 can affect the cleavage of human Atg...
GPVI has a positively charged arginine in its transmembrane region that is essential for association with the FcR γ-chain.45,46 A transmembrane arginine is also found in other receptors that associate with the FcR γ-chain including FcγRI, FcγRIII, FcϵRI, FcαR, PIR-A, and NKR-...
Lysine, an essential cationic amino acid, has a positively charged R group. The structure of lysine is given as (H3N+-)CH(-COO-)-CH2-CH2-CH2-CH2-N+H3.While
Electrospray ionization generates mostly doubly-charged precursors containing a positively-charged arginine or lysine in their C terminus and an N-terminal positive charge on its α-amine group. These characteristics make tryptic peptides ideally suited for separation by reversed-phase liquid chromatography...
Overview of YejM structure, constructs, and phylogenetic connection of YejM to selected members of the larger hydrolase superfamily. (a) Overview of YejM structure. The N-terminal transmembrane domain containing 5 helices (5TM) and linker region with positively charged arginine residues (RR) are ...
4-dienoyl-CoA reductase is thought to protonate one of the carbon atoms that form the carbon double bond in the enzyme’s substrate completing the reduction of that bond21,22. The similar positioning of the positively charged arginine residue in the predicted BilR structure suggests that this ...