annotate local_ctd.py @ 41:ddd9e3b58525 draft default tip

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# -*- coding: utf-8 -*-
"""
Compute the composition, transition and distribution descriptors based on the
different properties of AADs.
The AADs with the same properties is marked as the same number. You can get 147
descriptors for a given protein sequence.
References
----------
.. [1] Inna Dubchak, Ilya Muchink, Stephen R.Holbrook and Sung-Hou Kim.
       Prediction of protein folding class using global description of amino
       acid sequence. Proc.Natl. Acad.Sci.USA, 1995, 92, 8700-8704.
.. [2] Inna Dubchak, Ilya Muchink, Christopher Mayor, Igor Dralyuk and Sung-Hou
       Kim. Recognition of a Protein Fold in the Context of the SCOP
       classification. Proteins: Structure, Function and
       Genetics, 1999, 35, 401-407.
Authors: Dongsheng Cao and Yizeng Liang.
Date: 2010.11.22
Email: [e-mail]
"""

# Core Library
import copy
import math
from typing import Any, Dict

_Hydrophobicity = {"1": "RKEDQN", "2": "GASTPHY", "3": "CLVIMFW"}
# '1'stand for Polar; '2'stand for Neutral, '3' stand for Hydrophobicity

_NormalizedVDWV = {"1": "GASTPD", "2": "NVEQIL", "3": "MHKFRYW"}
# '1'stand for (0-2.78); '2'stand for (2.95-4.0), '3' stand for (4.03-8.08)

_Polarity = {"1": "LIFWCMVY", "2": "CPNVEQIL", "3": "KMHFRYW"}
# '1'stand for (4.9-6.2); '2'stand for (8.0-9.2), '3' stand for (10.4-13.0)

_Charge = {"1": "KR", "2": "ANCQGHILMFPSTWYV", "3": "DE"}
# '1'stand for Positive; '2'stand for Neutral, '3' stand for Negative

_SecondaryStr = {"1": "EALMQKRH", "2": "VIYCWFT", "3": "GNPSD"}
# '1'stand for Helix; '2'stand for Strand, '3' stand for coil

_SolventAccessibility = {"1": "ALFCGIVW", "2": "RKQEND", "3": "MPSTHY"}
# '1'stand for Buried; '2'stand for Exposed, '3' stand for Intermediate

_Polarizability = {"1": "GASDT", "2": "CPNVEQIL", "3": "KMHFRYW"}
# '1'stand for (0-0.108); '2'stand for (0.128-0.186), '3' stand for (0.219-0.409)


# You can continuely add other properties of AADs to compute descriptors of
# protein sequence.

_AATProperty = (
    _Hydrophobicity,
    _NormalizedVDWV,
    _Polarity,
    _Charge,
    _SecondaryStr,
    _SolventAccessibility,
    _Polarizability,
)

_AATPropertyName = (
    "_Hydrophobicity",
    "_NormalizedVDWV",
    "_Polarity",
    "_Charge",
    "_SecondaryStr",
    "_SolventAccessibility",
    "_Polarizability",
)


def StringtoNum(ProteinSequence: str, AAProperty: Dict[Any, Any]) -> str:
    hardProteinSequence = copy.deepcopy(ProteinSequence)
    for k, m in list(AAProperty.items()):
        for index in m:
            hardProteinSequence = hardProteinSequence.replace(index, k)
    TProteinSequence = hardProteinSequence

    return TProteinSequence


def CalculateComposition(
    ProteinSequence: str, AAProperty: Dict[Any, Any], AAPName: str) -> Dict[Any, Any]:
    TProteinSequence = StringtoNum(ProteinSequence, AAProperty)
    result = {}
    num = len(TProteinSequence)
    result[AAPName + "C" + "1"] = round(float(TProteinSequence.count("1")) / num, 3)
    result[AAPName + "C" + "2"] = round(float(TProteinSequence.count("2")) / num, 3)
    result[AAPName + "C" + "3"] = round(float(TProteinSequence.count("3")) / num, 3)
    return result


def CalculateTransition(
    ProteinSequence: str, AAProperty: Dict[Any, Any], AAPName: str
) -> Dict[Any, Any]:
    TProteinSequence = StringtoNum(ProteinSequence, AAProperty)
    Result = {}
    num = len(TProteinSequence)
    CTD = TProteinSequence
    Result[AAPName + "T" + "12"] = round(
        float(CTD.count("12") + CTD.count("21")) / (num - 1), 3
    )
    Result[AAPName + "T" + "13"] = round(
        float(CTD.count("13") + CTD.count("31")) / (num - 1), 3
    )
    Result[AAPName + "T" + "23"] = round(
        float(CTD.count("23") + CTD.count("32")) / (num - 1), 3
    )
    return Result


def CalculateDistribution(
    ProteinSequence: str, AAProperty: Dict[Any, Any], AAPName: str
) -> Dict[Any, Any]:
    TProteinSequence = StringtoNum(ProteinSequence, AAProperty)
    Result: Dict[str, float] = {}
    Num = len(TProteinSequence)
    for i in ("1", "2", "3"):
        num = TProteinSequence.count(i)
        ink = 1
        indexk = 0
        cds = []
        while ink <= num:
            indexk = TProteinSequence.find(i, indexk) + 1
            cds.append(indexk)
            ink = ink + 1

        if cds == []:
            Result[AAPName + "D" + i + "001"] = 0
            Result[AAPName + "D" + i + "025"] = 0
            Result[AAPName + "D" + i + "050"] = 0
            Result[AAPName + "D" + i + "075"] = 0
            Result[AAPName + "D" + i + "100"] = 0
        else:
            Result[AAPName + "D" + i + "001"] = round(float(cds[0]) / Num * 100, 3)
            Result[AAPName + "D" + i + "025"] = round(
                float(cds[int(math.floor(num * 0.25)) - 1]) / Num * 100, 3
            )
            Result[AAPName + "D" + i + "050"] = round(
                float(cds[int(math.floor(num * 0.5)) - 1]) / Num * 100, 3
            )
            Result[AAPName + "D" + i + "075"] = round(
                float(cds[int(math.floor(num * 0.75)) - 1]) / Num * 100, 3
            )
            Result[AAPName + "D" + i + "100"] = round(float(cds[-1]) / Num * 100, 3)

    return Result


def CalculateCompositionHydrophobicity(ProteinSequence: str):
    return CalculateComposition(ProteinSequence, _Hydrophobicity, "_Hydrophobicity")


def CalculateCompositionNormalizedVDWV(ProteinSequence: str):
    return CalculateComposition(ProteinSequence, _NormalizedVDWV, "_NormalizedVDWV")


def CalculateCompositionPolarity(ProteinSequence: str):
    return CalculateComposition(ProteinSequence, _Polarity, "_Polarity")


def CalculateCompositionCharge(ProteinSequence: str) -> Dict[Any, Any]:
    return CalculateComposition(ProteinSequence, _Charge, "_Charge")


def CalculateCompositionSecondaryStr(ProteinSequence: str) -> Dict[Any, Any]:
    return CalculateComposition(ProteinSequence, _SecondaryStr, "_SecondaryStr")


def CalculateCompositionSolventAccessibility(ProteinSequence: str) -> Dict[Any, Any]:
    return CalculateComposition(
        ProteinSequence, _SolventAccessibility, "_SolventAccessibility"
    )


def CalculateCompositionPolarizability(ProteinSequence: str) -> Dict[Any, Any]:
    return CalculateComposition(ProteinSequence, _Polarizability, "_Polarizability")


def CalculateTransitionHydrophobicity(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateTransition(ProteinSequence, _Hydrophobicity, "_Hydrophobicity")
    return result


def CalculateTransitionNormalizedVDWV(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateTransition(ProteinSequence, _NormalizedVDWV, "_NormalizedVDWV")
    return result


def CalculateTransitionPolarity(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateTransition(ProteinSequence, _Polarity, "_Polarity")
    return result


def CalculateTransitionCharge(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateTransition(ProteinSequence, _Charge, "_Charge")
    return result


def CalculateTransitionSecondaryStr(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateTransition(ProteinSequence, _SecondaryStr, "_SecondaryStr")
    return result


def CalculateTransitionSolventAccessibility(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateTransition(
        ProteinSequence, _SolventAccessibility, "_SolventAccessibility"
    )
    return result


def CalculateTransitionPolarizability(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateTransition(ProteinSequence, _Polarizability, "_Polarizability")
    return result


def CalculateDistributionHydrophobicity(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateDistribution(ProteinSequence, _Hydrophobicity, "_Hydrophobicity")
    return result


def CalculateDistributionNormalizedVDWV(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateDistribution(ProteinSequence, _NormalizedVDWV, "_NormalizedVDWV")
    return result


def CalculateDistributionPolarity(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateDistribution(ProteinSequence, _Polarity, "_Polarity")
    return result


def CalculateDistributionCharge(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateDistribution(ProteinSequence, _Charge, "_Charge")
    return result


def CalculateDistributionSecondaryStr(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateDistribution(ProteinSequence, _SecondaryStr, "_SecondaryStr")
    return result


def CalculateDistributionSolventAccessibility(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateDistribution(
        ProteinSequence, _SolventAccessibility, "_SolventAccessibility"
    )
    return result


def CalculateDistributionPolarizability(ProteinSequence: str) -> Dict[Any, Any]:
    result = CalculateDistribution(ProteinSequence, _Polarizability, "_Polarizability")
    return result


def CalculateC(ProteinSequence: str) -> Dict[Any, Any]:
    result: Dict[Any, Any] = {}
    result.update(CalculateCompositionPolarizability(ProteinSequence))
    result.update(CalculateCompositionSolventAccessibility(ProteinSequence))
    result.update(CalculateCompositionSecondaryStr(ProteinSequence))
    result.update(CalculateCompositionCharge(ProteinSequence))
    result.update(CalculateCompositionPolarity(ProteinSequence))
    result.update(CalculateCompositionNormalizedVDWV(ProteinSequence))
    result.update(CalculateCompositionHydrophobicity(ProteinSequence))
    return result


def CalculateT(ProteinSequence: str) -> Dict[Any, Any]:
    result: Dict[Any, Any] = {}
    result.update(CalculateTransitionPolarizability(ProteinSequence))
    result.update(CalculateTransitionSolventAccessibility(ProteinSequence))
    result.update(CalculateTransitionSecondaryStr(ProteinSequence))
    result.update(CalculateTransitionCharge(ProteinSequence))
    result.update(CalculateTransitionPolarity(ProteinSequence))
    result.update(CalculateTransitionNormalizedVDWV(ProteinSequence))
    result.update(CalculateTransitionHydrophobicity(ProteinSequence))
    return result


def CalculateD(ProteinSequence: str) -> Dict[Any, Any]:
    result: Dict[Any, Any] = {}
    result.update(CalculateDistributionPolarizability(ProteinSequence))
    result.update(CalculateDistributionSolventAccessibility(ProteinSequence))
    result.update(CalculateDistributionSecondaryStr(ProteinSequence))
    result.update(CalculateDistributionCharge(ProteinSequence))
    result.update(CalculateDistributionPolarity(ProteinSequence))
    result.update(CalculateDistributionNormalizedVDWV(ProteinSequence))
    result.update(CalculateDistributionHydrophobicity(ProteinSequence))
    return result


def CalculateCTD(ProteinSequence: str) -> Dict[Any, Any]:
    result: Dict[Any, Any] = {}
    result.update(CalculateCompositionPolarizability(ProteinSequence))
    result.update(CalculateCompositionSolventAccessibility(ProteinSequence))
    result.update(CalculateCompositionSecondaryStr(ProteinSequence))
    result.update(CalculateCompositionCharge(ProteinSequence))
    result.update(CalculateCompositionPolarity(ProteinSequence))
    result.update(CalculateCompositionNormalizedVDWV(ProteinSequence))
    result.update(CalculateCompositionHydrophobicity(ProteinSequence))
    result.update(CalculateTransitionPolarizability(ProteinSequence))
    result.update(CalculateTransitionSolventAccessibility(ProteinSequence))
    result.update(CalculateTransitionSecondaryStr(ProteinSequence))
    result.update(CalculateTransitionCharge(ProteinSequence))
    result.update(CalculateTransitionPolarity(ProteinSequence))
    result.update(CalculateTransitionNormalizedVDWV(ProteinSequence))
    result.update(CalculateTransitionHydrophobicity(ProteinSequence))
    result.update(CalculateDistributionPolarizability(ProteinSequence))
    result.update(CalculateDistributionSolventAccessibility(ProteinSequence))
    result.update(CalculateDistributionSecondaryStr(ProteinSequence))
    result.update(CalculateDistributionCharge(ProteinSequence))
    result.update(CalculateDistributionPolarity(ProteinSequence))
    result.update(CalculateDistributionNormalizedVDWV(ProteinSequence))
    result.update(CalculateDistributionHydrophobicity(ProteinSequence))
    return result