Table 2 Table of functions used to calculate the protein physicochemical properties.

From: Developing anti-microbial peptide database version 1 to provide comprehensive and exhaustive resource of manually curated AMPs

Protein Physicochemical Properties Computation

ProtParam Module of Biopython package (version 1.79)43

Peptides (version 0.3.1) python package44

Function

Used for

Function

Used for

instability_index

Instability Index

aliphatic_index

Aliphatic Index

gravy

Hydrophobicity (GRAVY)

hydrophobic_moment

Hydrophobic Moment

isoelectric_point

Isoelectric Point

  

molecular_weight

Molecular Weight

charge_at_pH

Charge (at pH 7)

secondary_structure_fraction

Secondary Structure Fraction

aromaticity

Aromaticity

molar_extinction_coefficient

Molar Extinction Coefficient (cysteine|cystine)