Spatial profiling of proteins using hydrophobic moments

A system for spatially profiling a protein to determine if the protein is a globular protein, comprising:

• a memory that stores computer-readable code;
• and
• a processor operatively coupled to the memory, the processor configured to implement the computer-readable code, the computer-readable code configured to:
• determine a shifted and normalized hydrophobicity distribution for a protein;
• determine a centroid of the protein;
• select a surface;
• calculate, by using the surface, an adjusted second-order moment of the shifted and normalized hydrophobicity distribution,
• determine a profile of the adjusted second-order moment of hydrophobicity, wherein a profile comprises a reference point, a coordinate system and a shape representative of the protein, wherein the reference point is the centroid, and wherein determining the profile comprises determining a first distance from the reference point along the coordinate system at which the adjusted second-order moment of hydrophobicity is zero;
• and
• compare the profile to a globular protein profile to determine if the protein is a globular protein.

An article of manufacture for spatially profiling a protein to determine if the protein is a globular protein, comprising:

• a computer-readable medium having computer-readable code embodied thereon, the computer-readable code comprising:
• a step to determine a shifted and normalized hydrophobicity distribution for a protein;
• a step to determine a centroid of the protein;
• a step to select a surface;
• a step to calculate, by using the surface, an adjusted second-order moment of the shifted and normalized hydrophobicity distribution,
• a step to determine a profile of the adjusted second-order moment of hydrophobicity, wherein a profile comprises a reference point, a coordinate system and a shape representative of the protein, wherein the reference point is the centroid, and wherein determining the profile comprises determining a first distance from the reference point along the coordinate system at which the adjusted second-order moment of hydrophobicity is zero;
• and
• a step to compare the profile to a globular protein profile to determine if the protein is a globular protein.