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Table 2 Description of the standard physicochemical properties employed for the models training

From: Prediction of HIV-1 protease cleavage site from octapeptide sequence information using selected classifiers and hybrid descriptors

Physicochemical property

Abbreviated representation in pfeature

Description

Positively charged

PCP_PC

A measure of the residual positive charge resident on an octapeptide

Negatively charged

PCP_NC

A measure of the residual negative charge on an octapeptide

Neutral towards water

PCP_NE

Answers the question, how neutral is the octapeptide towards water

Polarity

PCP_PO

A measure of how polar an octapeptide is

Non-polarity

PCP_NP

A measure of how non-polar an octapeptide is

Aliphaticity

PCP_AL

Gives the measure of how aliphatic the octapeptide is

Cyclicity

PCP_CY

Gives a measure of how many cyclic rings are present in an octapeptide

Aromaticity

PCP_AR

Answers the question, how aromatic is the octapeptide?

Acidity

PCP_AC

Gives a measure of how acidic an octapeptide is

Basicity

PCP_BS

Gives the measure of how basic an octapeptide is

Neutral pH

PCP_NE_pH

Measures the pH of an octapeptide under neutral condition

Hydrophilicity

PCP_HB

Measures the tendency of water to include non-polar molecules

Hydrophobicity

PCP_HL

Measures the tendency of water to exclude non-polar molecules

Sulfur Content

PCP_SC

Gives the proportion of Sulfur in an octapeptide