NSTRUCT : initial number of BLAST hits to similar proteins with
3D structures in PDB
NFILT : number of 3D BLAST hits after identity threshold filtering
PDBID : protein structure identifier from PDB
PDBPOS : position of substitution in PDB protein sequence
PDBCH : PDB polypeptide chain identifier
IDENT : sequence identity between query and aligned PDB sequences
LENGTH : PDB sequence alignment length
NORMACC : normalized accessible surface
SECSTR : DSSP secondary structure assignment
MAPREG : region of the phi-psi (Ramachandran) map derived from the
residue dihedral angles
DVOL : change in residue side chain volume
DPROP : change in solvent accessible surface propensity resulting
from the substitution
BFACT : normalized B-factor (temperature factor) for the residue
HBONDS : number of hydrogen sidechain-sidechain and
sidechain-mainchain bonds formed by the residue
AVENHET : average number of contacts with heteroatoms per residue
MINDHET : closest contact with heteroatom
AVENINT : average number of contacts with other chains per residue
MINDINT : closest contact with other chain
AVENSIT : average number of contacts with critical sites per
residue
MINDSIT : closest contact with a critical site