32, 33 However, under the reaction conditions used we did not observe backbone cleavage by MALDI-TOF MS. In summary, we have demonstrated that Co3+ can mediate the interaction between the His6-tag and NTA and forms a complex that is inert towards ligand exchange, is thermodynamically stable, and does not react with chelators or reducing agents.
Comparison of the structures reveals a common two-loop architecture, with variations observed in backbone and side-chain dihedral angles as well as surface electrostatic potentials upon mutation.
Largest RMSDs apart from the N- and C-termini of the protein are observed for backbone atoms located in loop regions of IsdBN1, including loop 2 spanning residues 158 172 and labeled L2 in Figure 2.
In this article, we introduce and apply our de novo protein design framework, which observes true backbone flexibility, to the redesign of human β-defensin-2, a 41-residue cationic antimicrobial peptide of the innate immune system.
Wherever similar domains were unavailable, domain boundaries were determined by observing polypeptide backbone and residue side-chain geometry.
It was observed that polymer backbone which is richer in nitrogen, exhibited superior sensitivity towards NACs.
Subtle differences in the half maximum widths were observed in the backbone carbonyl suggesting possible structural heterogeneity across the different methods of purification.
SEM images revealed that ATMN and BTMN had retained the flaky structural backbone observed in raw Macadamia, implying that the treatment procedures were not excessively harsh to destroy the structure of materials.
The second strongest hydrogen bond (25% occupancy) was observed between the backbone atoms of R8(−2) and the sidechain of OGA residue R347.
This configuration is characterized by a unique, highly specific, positional distribution on the glycerol backbone observed only in TG synthesis in the mammary gland [ 10].
