In this paper, we present a method for the construction of 8×8 substitution boxes used in the area of cryptography.
For construction of single-substitution GFP mutants, each phenylalanine position in GFP-Ref.
We used this mutant protein for construction of Trp substitutions at each position in pore-lining helix TM3a and at selected positions in TM1 and TM2.
The construction of cryptographically strong substitution boxes (S-boxes) is an important concern in designing secure cryptosystems.
Overlapping PCR was used for the construction of the VSV-G substitution mutants of gp160.
The model of evolution was based on the LG model [ 75], which utilizes the capability of maximum likelihood estimation and incorporates the concept of rate heterogeneity at different sites in the construction of the amino acid substitution matrix.
For the construction of reporter plasmids containing substitution mutations in factor binding sites of c-Myc or Sp1, site-specific mutagenesis was performed by a PCR-based protocol as described previously (Kyo et al, 2000).
The first step involves the construction of two amino acid substitution matrices: one describing PPISs or protein binding interfaces (PBIs), and the other describing non-protein binding interfaces (NPBIs) or non-PPISs (NPPISs), via MSAs from iPFAM [ 94].
The reason for this was that the construction of such (in general asymmetric) substitution matrices requires the inclusion of an outgroup sequence in the protein sequence alignment.
Since the actual truss-type construction is retained when obtaining the wave scattering matrices, the procedure is considered more accurate than those based on substitution for truss construction of Timoshenko beam elements.
