schrodinger.protein.residue module

schrodinger.protein.residue.get_matrix_value(matrix, first, second)

Return a similarity matrix value for a specified pair of residues.

class schrodinger.protein.residue.HELIX_PROPENSITY

Bases: enum.Enum

An enumeration.

AMBIVALENT = 4
HELIX_BREAKING = 5
LIKELY = 2
NO_PROPENSITY = 1
WEAK = 3
class schrodinger.protein.residue.BETA_STRAND_PROPENSITY

Bases: enum.Enum

An enumeration.

AMBIVALENT = 3
NO_PROPENSITY = 1
STRAND_BREAKING = 2
STRAND_FORMING = 4
class schrodinger.protein.residue.TURN_PROPENSITY

Bases: enum.Enum

An enumeration.

AMBIVALENT = 3
NO_PROPENSITY = 1
TURN_BREAKING = 4
TURN_FORMING = 2
class schrodinger.protein.residue.HELIX_TERMINATION_TENDENCY

Bases: enum.Enum

An enumeration.

AMBIVALENT = 3
HELIX_ENDING = 4
HELIX_STARTING = 2
NO_TENDENCY = 1
class schrodinger.protein.residue.SOLVENT_EXPOSURE_TENDENCY

Bases: enum.Enum

An enumeration.

AMBIVALENT = 3
BURIED = 4
NO_TENDENCY = 1
SURFACE = 2
class schrodinger.protein.residue.STERIC_GROUP

Bases: enum.Enum

An enumeration.

AMBIVALENT = 3
AROMATIC = 5
NO_STERIC = 1
POLAR = 4
SMALL = 2
class schrodinger.protein.residue.SIDE_CHAIN_CHEM

Bases: enum.Enum

An enumeration.

ACIDIC_HYDROPHILIC = 2
BASIC_HYDROPHILIC = 3
IMINO_ACID = 8
NEUTRAL_HYDROPHILIC = 6
NEUTRAL_HYDROPHOBIC_ALIPHATIC = 4
NEUTRAL_HYDROPHOBIC_AROMATIC = 5
NO_SIDE_CHAIN_CHEM = 1
PRIMARY_THIOL = 7
class schrodinger.protein.residue.RESIDUE_CHARGE

Bases: enum.Enum

An enumeration.

NEGATIVE = 2
NEUTRAL = 3
POSITIVE = 1
class schrodinger.protein.residue.ElementType(short_code, long_code, name)

Bases: object

makeVariant(long_code, short_code)

Create a variant of an element type with a new long and short code.

Parameters:
  • long_code (str) – A 2+ character string representing the element type
  • short_code (str) – A 1 character string representing the element type
Returns:

The variant element type
Return type:

ElementType
class schrodinger.protein.residue.ResidueType(short_code, long_code, name, charge=None, hydrophobicity=None, hydrophilicity=None, helix_propensity=None, beta_strand_propensity=None, turn_propensity=None, helix_termination_tendency=None, exposure_tendency=None, steric_group=None, side_chain_chem=None, isoelectric_point=None)

Bases: schrodinger.protein.residue.ElementType

class schrodinger.protein.residue.NucleotideType(short_code, long_code, name, charge=None, hydrophobicity=None, hydrophilicity=None, helix_propensity=None, beta_strand_propensity=None, turn_propensity=None, helix_termination_tendency=None, exposure_tendency=None, steric_group=None, side_chain_chem=None, isoelectric_point=None)

Bases: schrodinger.protein.residue.ResidueType

schrodinger.protein.residue.make_variants(variants)

Helper function to create modified amino acids and modified nucleotides

Parameters:
  • variants – A list of modified residues. The modified residue will have all the same properties as the standard one (hydophobicity, charge, etc.) but its long code (ie, its PDB residue name) will differ, and if a tuple of (string, string) is provided, both its long code and short code will differ.
  • variants – list of (ResidueType, list of string or (string,string))
Returns:

a list of residue variants
Return type:

list of ResidueType
schrodinger.protein.residue.merge_dicts(*dict_args)

Merge any number of dictionaries into a single dictionary.

Note that repeated keys will be silently overwritten with the last value.

schrodinger.protein.residue.make_one_letter_map(res_list)
schrodinger.protein.residue.make_three_letter_map(res_list)
schrodinger.protein.residue.is_gap(res)

Utility function to check whether a residue is a gap (represented by None)

Parameters:res (schrodinger.structure._Residue or None) – The residue to inspect
schrodinger.protein.residue.is_not_gap(res)

Utility function to check whether a residue is a gap (represented by None)

Parameters:res (schrodinger.structure._Residue or None) – The residue to inspect
class schrodinger.protein.residue.AbstractSequenceElement

Bases: object

is_gap
class schrodinger.protein.residue.Gap

Bases: schrodinger.protein.residue.AbstractSequenceElement

is_gap
class schrodinger.protein.residue.SequenceElement(element_type)

Bases: schrodinger.protein.residue.AbstractSequenceElement

class schrodinger.protein.residue.Residue(element_type, inscode=' ', resnum=None, seqres_only=False)

Bases: schrodinger.protein.residue.SequenceElement

An amino acid residue.

rescode
short_code
long_code
hydrophobicity
Returns:Hydrophobicity for the ResidueType on the Kyte-Doolittle scale, if available; otherwise None.
Return type:float
hydrophilicity
Returns:Hydrophilicity for the ResidueType on the Hopp-Woods scale, if available; otherwise None
Return type:float
charge
Returns:charge of the ResidueType of the residue
Return type:RESIDUE_CHARGE
helix_propensity
Returns:Helix propensity for the ResidueType of the residue
Return type:HELIX_PROPENSITY
beta_strand_propensity
Returns:Beta-strand propensity for the ResidueType of the residue
Return type:BETA_STRAND_PROPENSITY
turn_propensity
Returns:Turn propensity for the ResidueType of the residue
Return type:TURN_PROPENSITY
helix_termination_tendency
Returns:Helix termination tendency for the ResidueType of the residue
Return type:HELIX_TERMINATION_TENDENCY
exposure_tendency
Returns:Solvent exposure tendency for the ResidueType of the residue
Return type:SOLVENT_EXPOSURE_TENDENCY
steric_group
Returns:Steric group for the ResidueType of the residue
Return type:STERIC_GROUP
side_chain_chem
Returns:Side chain chemistry for the ResidueType of the residue
Return type:SIDE_CHAIN_CHEM
gapped_index_in_seq

Return the index of this residue within its sequence counting gaps

Returns:Index of this residue in its sequence or None if it is not part of a sequence.
Return type:int or None
gapless_index_in_seq

Return the index of this residue within its sequence ignoring gaps

Returns:Index of this residue in its sequence or None if it is not part of a sequence.
Return type:int or None
ss_prediction_psipred

Returns a DSSP code matching the secondary structure prediction for the residue or None. Value is calculated from thePsiPred backend.

ss_prediction_sspro

Returns a DSSP code matching the secondary structure prediction for the residue or None. Value is calculated from the SSpro backend.

isoelectric_point
Returns:A float representing the isoelectric point value for the ResidueType of the residue
getSimilarity(ref_res, similarity_matrix={('A', 'A'): 4, ('A', 'B'): -2, ('A', 'C'): 0, ('A', 'D'): -2, ('A', 'E'): -1, ('A', 'F'): -2, ('A', 'G'): 0, ('A', 'H'): -2, ('A', 'I'): -1, ('A', 'K'): -1, ('A', 'L'): -1, ('A', 'M'): -1, ('A', 'N'): -2, ('A', 'P'): -1, ('A', 'Q'): -1, ('A', 'R'): -1, ('A', 'S'): 1, ('A', 'T'): 0, ('A', 'V'): 0, ('A', 'W'): -3, ('A', 'X'): 0, ('A', 'Y'): -2, ('A', 'Z'): -1, ('B', 'A'): -2, ('B', 'B'): 4, ('B', 'C'): -3, ('B', 'D'): 4, ('B', 'E'): 1, ('B', 'F'): -3, ('B', 'G'): -1, ('B', 'H'): 0, ('B', 'I'): -3, ('B', 'K'): 0, ('B', 'L'): -4, ('B', 'M'): -3, ('B', 'N'): 3, ('B', 'P'): -2, ('B', 'Q'): 0, ('B', 'R'): -1, ('B', 'S'): 0, ('B', 'T'): -1, ('B', 'V'): -3, ('B', 'W'): -4, ('B', 'X'): -1, ('B', 'Y'): -3, ('B', 'Z'): 1, ('C', 'A'): 0, ('C', 'B'): -3, ('C', 'C'): 9, ('C', 'D'): -3, ('C', 'E'): -4, ('C', 'F'): -2, ('C', 'G'): -3, ('C', 'H'): -3, ('C', 'I'): -1, ('C', 'K'): -3, ('C', 'L'): -1, ('C', 'M'): -1, ('C', 'N'): -3, ('C', 'P'): -3, ('C', 'Q'): -3, ('C', 'R'): -3, ('C', 'S'): -1, ('C', 'T'): -1, ('C', 'V'): -1, ('C', 'W'): -2, ('C', 'X'): -2, ('C', 'Y'): -2, ('C', 'Z'): -3, ('D', 'A'): -2, ('D', 'B'): 4, ('D', 'C'): -3, ('D', 'D'): 6, ('D', 'E'): 2, ('D', 'F'): -3, ('D', 'G'): -1, ('D', 'H'): -1, ('D', 'I'): -3, ('D', 'K'): -1, ('D', 'L'): -4, ('D', 'M'): -3, ('D', 'N'): 1, ('D', 'P'): -1, ('D', 'Q'): 0, ('D', 'R'): -2, ('D', 'S'): 0, ('D', 'T'): -1, ('D', 'V'): -3, ('D', 'W'): -4, ('D', 'X'): -1, ('D', 'Y'): -3, ('D', 'Z'): 1, ('E', 'A'): -1, ('E', 'B'): 1, ('E', 'C'): -4, ('E', 'D'): 2, ('E', 'E'): 5, ('E', 'F'): -3, ('E', 'G'): -2, ('E', 'H'): 0, ('E', 'I'): -3, ('E', 'K'): 1, ('E', 'L'): -3, ('E', 'M'): -2, ('E', 'N'): 0, ('E', 'P'): -1, ('E', 'Q'): 2, ('E', 'R'): 0, ('E', 'S'): 0, ('E', 'T'): -1, ('E', 'V'): -2, ('E', 'W'): -3, ('E', 'X'): -1, ('E', 'Y'): -2, ('E', 'Z'): 4, ('F', 'A'): -2, ('F', 'B'): -3, ('F', 'C'): -2, ('F', 'D'): -3, ('F', 'E'): -3, ('F', 'F'): 6, ('F', 'G'): -3, ('F', 'H'): -1, ('F', 'I'): 0, ('F', 'K'): -3, ('F', 'L'): 0, ('F', 'M'): 0, ('F', 'N'): -3, ('F', 'P'): -4, ('F', 'Q'): -3, ('F', 'R'): -3, ('F', 'S'): -2, ('F', 'T'): -2, ('F', 'V'): -1, ('F', 'W'): 1, ('F', 'X'): -1, ('F', 'Y'): 3, ('F', 'Z'): -3, ('G', 'A'): 0, ('G', 'B'): -1, ('G', 'C'): -3, ('G', 'D'): -1, ('G', 'E'): -2, ('G', 'F'): -3, ('G', 'G'): 6, ('G', 'H'): -2, ('G', 'I'): -4, ('G', 'K'): -2, ('G', 'L'): -4, ('G', 'M'): -3, ('G', 'N'): 0, ('G', 'P'): -2, ('G', 'Q'): -2, ('G', 'R'): -2, ('G', 'S'): 0, ('G', 'T'): -2, ('G', 'V'): -3, ('G', 'W'): -2, ('G', 'X'): -1, ('G', 'Y'): -3, ('G', 'Z'): -2, ('H', 'A'): -2, ('H', 'B'): 0, ('H', 'C'): -3, ('H', 'D'): -1, ('H', 'E'): 0, ('H', 'F'): -1, ('H', 'G'): -2, ('H', 'H'): 8, ('H', 'I'): -3, ('H', 'K'): -1, ('H', 'L'): -3, ('H', 'M'): -2, ('H', 'N'): 1, ('H', 'P'): -2, ('H', 'Q'): 0, ('H', 'R'): 0, ('H', 'S'): -1, ('H', 'T'): -2, ('H', 'V'): -3, ('H', 'W'): -2, ('H', 'X'): -1, ('H', 'Y'): 2, ('H', 'Z'): 0, ('I', 'A'): -1, ('I', 'B'): -3, ('I', 'C'): -1, ('I', 'D'): -3, ('I', 'E'): -3, ('I', 'F'): 0, ('I', 'G'): -4, ('I', 'H'): -3, ('I', 'I'): 4, ('I', 'K'): -3, ('I', 'L'): 2, ('I', 'M'): 1, ('I', 'N'): -3, ('I', 'P'): -3, ('I', 'Q'): -3, ('I', 'R'): -3, ('I', 'S'): -2, ('I', 'T'): -1, ('I', 'V'): 3, ('I', 'W'): -3, ('I', 'X'): -1, ('I', 'Y'): -1, ('I', 'Z'): -3, ('K', 'A'): -1, ('K', 'B'): 0, ('K', 'C'): -3, ('K', 'D'): -1, ('K', 'E'): 1, ('K', 'F'): -3, ('K', 'G'): -2, ('K', 'H'): -1, ('K', 'I'): -3, ('K', 'K'): 5, ('K', 'L'): -2, ('K', 'M'): -1, ('K', 'N'): 0, ('K', 'P'): -1, ('K', 'Q'): 1, ('K', 'R'): 2, ('K', 'S'): 0, ('K', 'T'): -1, ('K', 'V'): -2, ('K', 'W'): -3, ('K', 'X'): -1, ('K', 'Y'): -2, ('K', 'Z'): 1, ('L', 'A'): -1, ('L', 'B'): -4, ('L', 'C'): -1, ('L', 'D'): -4, ('L', 'E'): -3, ('L', 'F'): 0, ('L', 'G'): -4, ('L', 'H'): -3, ('L', 'I'): 2, ('L', 'K'): -2, ('L', 'L'): 4, ('L', 'M'): 2, ('L', 'N'): -3, ('L', 'P'): -3, ('L', 'Q'): -2, ('L', 'R'): -2, ('L', 'S'): -2, ('L', 'T'): -1, ('L', 'V'): 1, ('L', 'W'): -2, ('L', 'X'): -1, ('L', 'Y'): -1, ('L', 'Z'): -3, ('M', 'A'): -1, ('M', 'B'): -3, ('M', 'C'): -1, ('M', 'D'): -3, ('M', 'E'): -2, ('M', 'F'): 0, ('M', 'G'): -3, ('M', 'H'): -2, ('M', 'I'): 1, ('M', 'K'): -1, ('M', 'L'): 2, ('M', 'M'): 5, ('M', 'N'): -2, ('M', 'P'): -2, ('M', 'Q'): 0, ('M', 'R'): -1, ('M', 'S'): -1, ('M', 'T'): -1, ('M', 'V'): 1, ('M', 'W'): -1, ('M', 'X'): -1, ('M', 'Y'): -1, ('M', 'Z'): -1, ('N', 'A'): -2, ('N', 'B'): 3, ('N', 'C'): -3, ('N', 'D'): 1, ('N', 'E'): 0, ('N', 'F'): -3, ('N', 'G'): 0, ('N', 'H'): 1, ('N', 'I'): -3, ('N', 'K'): 0, ('N', 'L'): -3, ('N', 'M'): -2, ('N', 'N'): 6, ('N', 'P'): -2, ('N', 'Q'): 0, ('N', 'R'): 0, ('N', 'S'): 1, ('N', 'T'): 0, ('N', 'V'): -3, ('N', 'W'): -4, ('N', 'X'): -1, ('N', 'Y'): -2, ('N', 'Z'): 0, ('P', 'A'): -1, ('P', 'B'): -2, ('P', 'C'): -3, ('P', 'D'): -1, ('P', 'E'): -1, ('P', 'F'): -4, ('P', 'G'): -2, ('P', 'H'): -2, ('P', 'I'): -3, ('P', 'K'): -1, ('P', 'L'): -3, ('P', 'M'): -2, ('P', 'N'): -2, ('P', 'P'): 7, ('P', 'Q'): -1, ('P', 'R'): -2, ('P', 'S'): -1, ('P', 'T'): -1, ('P', 'V'): -2, ('P', 'W'): -4, ('P', 'X'): -2, ('P', 'Y'): -3, ('P', 'Z'): -1, ('Q', 'A'): -1, ('Q', 'B'): 0, ('Q', 'C'): -3, ('Q', 'D'): 0, ('Q', 'E'): 2, ('Q', 'F'): -3, ('Q', 'G'): -2, ('Q', 'H'): 0, ('Q', 'I'): -3, ('Q', 'K'): 1, ('Q', 'L'): -2, ('Q', 'M'): 0, ('Q', 'N'): 0, ('Q', 'P'): -1, ('Q', 'Q'): 5, ('Q', 'R'): 1, ('Q', 'S'): 0, ('Q', 'T'): -1, ('Q', 'V'): -2, ('Q', 'W'): -2, ('Q', 'X'): -1, ('Q', 'Y'): -1, ('Q', 'Z'): 3, ('R', 'A'): -1, ('R', 'B'): -1, ('R', 'C'): -3, ('R', 'D'): -2, ('R', 'E'): 0, ('R', 'F'): -3, ('R', 'G'): -2, ('R', 'H'): 0, ('R', 'I'): -3, ('R', 'K'): 2, ('R', 'L'): -2, ('R', 'M'): -1, ('R', 'N'): 0, ('R', 'P'): -2, ('R', 'Q'): 1, ('R', 'R'): 5, ('R', 'S'): -1, ('R', 'T'): -1, ('R', 'V'): -3, ('R', 'W'): -3, ('R', 'X'): -1, ('R', 'Y'): -2, ('R', 'Z'): 0, ('S', 'A'): 1, ('S', 'B'): 0, ('S', 'C'): -1, ('S', 'D'): 0, ('S', 'E'): 0, ('S', 'F'): -2, ('S', 'G'): 0, ('S', 'H'): -1, ('S', 'I'): -2, ('S', 'K'): 0, ('S', 'L'): -2, ('S', 'M'): -1, ('S', 'N'): 1, ('S', 'P'): -1, ('S', 'Q'): 0, ('S', 'R'): -1, ('S', 'S'): 4, ('S', 'T'): 1, ('S', 'V'): -2, ('S', 'W'): -3, ('S', 'X'): 0, ('S', 'Y'): -2, ('S', 'Z'): 0, ('T', 'A'): 0, ('T', 'B'): -1, ('T', 'C'): -1, ('T', 'D'): -1, ('T', 'E'): -1, ('T', 'F'): -2, ('T', 'G'): -2, ('T', 'H'): -2, ('T', 'I'): -1, ('T', 'K'): -1, ('T', 'L'): -1, ('T', 'M'): -1, ('T', 'N'): 0, ('T', 'P'): -1, ('T', 'Q'): -1, ('T', 'R'): -1, ('T', 'S'): 1, ('T', 'T'): 5, ('T', 'V'): 0, ('T', 'W'): -2, ('T', 'X'): 0, ('T', 'Y'): -2, ('T', 'Z'): -1, ('V', 'A'): 0, ('V', 'B'): -3, ('V', 'C'): -1, ('V', 'D'): -3, ('V', 'E'): -2, ('V', 'F'): -1, ('V', 'G'): -3, ('V', 'H'): -3, ('V', 'I'): 3, ('V', 'K'): -2, ('V', 'L'): 1, ('V', 'M'): 1, ('V', 'N'): -3, ('V', 'P'): -2, ('V', 'Q'): -2, ('V', 'R'): -3, ('V', 'S'): -2, ('V', 'T'): 0, ('V', 'V'): 4, ('V', 'W'): -3, ('V', 'X'): -1, ('V', 'Y'): -1, ('V', 'Z'): -2, ('W', 'A'): -3, ('W', 'B'): -4, ('W', 'C'): -2, ('W', 'D'): -4, ('W', 'E'): -3, ('W', 'F'): 1, ('W', 'G'): -2, ('W', 'H'): -2, ('W', 'I'): -3, ('W', 'K'): -3, ('W', 'L'): -2, ('W', 'M'): -1, ('W', 'N'): -4, ('W', 'P'): -4, ('W', 'Q'): -2, ('W', 'R'): -3, ('W', 'S'): -3, ('W', 'T'): -2, ('W', 'V'): -3, ('W', 'W'): 11, ('W', 'X'): -2, ('W', 'Y'): 2, ('W', 'Z'): -3, ('X', 'A'): 0, ('X', 'B'): -1, ('X', 'C'): -2, ('X', 'D'): -1, ('X', 'E'): -1, ('X', 'F'): -1, ('X', 'G'): -1, ('X', 'H'): -1, ('X', 'I'): -1, ('X', 'K'): -1, ('X', 'L'): -1, ('X', 'M'): -1, ('X', 'N'): -1, ('X', 'P'): -2, ('X', 'Q'): -1, ('X', 'R'): -1, ('X', 'S'): 0, ('X', 'T'): 0, ('X', 'V'): -1, ('X', 'W'): -2, ('X', 'X'): -1, ('X', 'Y'): -1, ('X', 'Z'): -1, ('Y', 'A'): -2, ('Y', 'B'): -3, ('Y', 'C'): -2, ('Y', 'D'): -3, ('Y', 'E'): -2, ('Y', 'F'): 3, ('Y', 'G'): -3, ('Y', 'H'): 2, ('Y', 'I'): -1, ('Y', 'K'): -2, ('Y', 'L'): -1, ('Y', 'M'): -1, ('Y', 'N'): -2, ('Y', 'P'): -3, ('Y', 'Q'): -1, ('Y', 'R'): -2, ('Y', 'S'): -2, ('Y', 'T'): -2, ('Y', 'V'): -1, ('Y', 'W'): 2, ('Y', 'X'): -1, ('Y', 'Y'): 7, ('Y', 'Z'): -2, ('Z', 'A'): -1, ('Z', 'B'): 1, ('Z', 'C'): -3, ('Z', 'D'): 1, ('Z', 'E'): 4, ('Z', 'F'): -3, ('Z', 'G'): -2, ('Z', 'H'): 0, ('Z', 'I'): -3, ('Z', 'K'): 1, ('Z', 'L'): -3, ('Z', 'M'): -1, ('Z', 'N'): 0, ('Z', 'P'): -1, ('Z', 'Q'): 3, ('Z', 'R'): 0, ('Z', 'S'): 0, ('Z', 'T'): -1, ('Z', 'V'): -2, ('Z', 'W'): -3, ('Z', 'X'): -1, ('Z', 'Y'): -2, ('Z', 'Z'): 4})

Returns the similarity between the residue and a reference residue

Parameters:
Returns:

similarity score based on the similarity matrix
Return type:

float
getBinarySimilarity(ref_res, similarity_matrix={('A', 'A'): 4, ('A', 'B'): -2, ('A', 'C'): 0, ('A', 'D'): -2, ('A', 'E'): -1, ('A', 'F'): -2, ('A', 'G'): 0, ('A', 'H'): -2, ('A', 'I'): -1, ('A', 'K'): -1, ('A', 'L'): -1, ('A', 'M'): -1, ('A', 'N'): -2, ('A', 'P'): -1, ('A', 'Q'): -1, ('A', 'R'): -1, ('A', 'S'): 1, ('A', 'T'): 0, ('A', 'V'): 0, ('A', 'W'): -3, ('A', 'X'): 0, ('A', 'Y'): -2, ('A', 'Z'): -1, ('B', 'A'): -2, ('B', 'B'): 4, ('B', 'C'): -3, ('B', 'D'): 4, ('B', 'E'): 1, ('B', 'F'): -3, ('B', 'G'): -1, ('B', 'H'): 0, ('B', 'I'): -3, ('B', 'K'): 0, ('B', 'L'): -4, ('B', 'M'): -3, ('B', 'N'): 3, ('B', 'P'): -2, ('B', 'Q'): 0, ('B', 'R'): -1, ('B', 'S'): 0, ('B', 'T'): -1, ('B', 'V'): -3, ('B', 'W'): -4, ('B', 'X'): -1, ('B', 'Y'): -3, ('B', 'Z'): 1, ('C', 'A'): 0, ('C', 'B'): -3, ('C', 'C'): 9, ('C', 'D'): -3, ('C', 'E'): -4, ('C', 'F'): -2, ('C', 'G'): -3, ('C', 'H'): -3, ('C', 'I'): -1, ('C', 'K'): -3, ('C', 'L'): -1, ('C', 'M'): -1, ('C', 'N'): -3, ('C', 'P'): -3, ('C', 'Q'): -3, ('C', 'R'): -3, ('C', 'S'): -1, ('C', 'T'): -1, ('C', 'V'): -1, ('C', 'W'): -2, ('C', 'X'): -2, ('C', 'Y'): -2, ('C', 'Z'): -3, ('D', 'A'): -2, ('D', 'B'): 4, ('D', 'C'): -3, ('D', 'D'): 6, ('D', 'E'): 2, ('D', 'F'): -3, ('D', 'G'): -1, ('D', 'H'): -1, ('D', 'I'): -3, ('D', 'K'): -1, ('D', 'L'): -4, ('D', 'M'): -3, ('D', 'N'): 1, ('D', 'P'): -1, ('D', 'Q'): 0, ('D', 'R'): -2, ('D', 'S'): 0, ('D', 'T'): -1, ('D', 'V'): -3, ('D', 'W'): -4, ('D', 'X'): -1, ('D', 'Y'): -3, ('D', 'Z'): 1, ('E', 'A'): -1, ('E', 'B'): 1, ('E', 'C'): -4, ('E', 'D'): 2, ('E', 'E'): 5, ('E', 'F'): -3, ('E', 'G'): -2, ('E', 'H'): 0, ('E', 'I'): -3, ('E', 'K'): 1, ('E', 'L'): -3, ('E', 'M'): -2, ('E', 'N'): 0, ('E', 'P'): -1, ('E', 'Q'): 2, ('E', 'R'): 0, ('E', 'S'): 0, ('E', 'T'): -1, ('E', 'V'): -2, ('E', 'W'): -3, ('E', 'X'): -1, ('E', 'Y'): -2, ('E', 'Z'): 4, ('F', 'A'): -2, ('F', 'B'): -3, ('F', 'C'): -2, ('F', 'D'): -3, ('F', 'E'): -3, ('F', 'F'): 6, ('F', 'G'): -3, ('F', 'H'): -1, ('F', 'I'): 0, ('F', 'K'): -3, ('F', 'L'): 0, ('F', 'M'): 0, ('F', 'N'): -3, ('F', 'P'): -4, ('F', 'Q'): -3, ('F', 'R'): -3, ('F', 'S'): -2, ('F', 'T'): -2, ('F', 'V'): -1, ('F', 'W'): 1, ('F', 'X'): -1, ('F', 'Y'): 3, ('F', 'Z'): -3, ('G', 'A'): 0, ('G', 'B'): -1, ('G', 'C'): -3, ('G', 'D'): -1, ('G', 'E'): -2, ('G', 'F'): -3, ('G', 'G'): 6, ('G', 'H'): -2, ('G', 'I'): -4, ('G', 'K'): -2, ('G', 'L'): -4, ('G', 'M'): -3, ('G', 'N'): 0, ('G', 'P'): -2, ('G', 'Q'): -2, ('G', 'R'): -2, ('G', 'S'): 0, ('G', 'T'): -2, ('G', 'V'): -3, ('G', 'W'): -2, ('G', 'X'): -1, ('G', 'Y'): -3, ('G', 'Z'): -2, ('H', 'A'): -2, ('H', 'B'): 0, ('H', 'C'): -3, ('H', 'D'): -1, ('H', 'E'): 0, ('H', 'F'): -1, ('H', 'G'): -2, ('H', 'H'): 8, ('H', 'I'): -3, ('H', 'K'): -1, ('H', 'L'): -3, ('H', 'M'): -2, ('H', 'N'): 1, ('H', 'P'): -2, ('H', 'Q'): 0, ('H', 'R'): 0, ('H', 'S'): -1, ('H', 'T'): -2, ('H', 'V'): -3, ('H', 'W'): -2, ('H', 'X'): -1, ('H', 'Y'): 2, ('H', 'Z'): 0, ('I', 'A'): -1, ('I', 'B'): -3, ('I', 'C'): -1, ('I', 'D'): -3, ('I', 'E'): -3, ('I', 'F'): 0, ('I', 'G'): -4, ('I', 'H'): -3, ('I', 'I'): 4, ('I', 'K'): -3, ('I', 'L'): 2, ('I', 'M'): 1, ('I', 'N'): -3, ('I', 'P'): -3, ('I', 'Q'): -3, ('I', 'R'): -3, ('I', 'S'): -2, ('I', 'T'): -1, ('I', 'V'): 3, ('I', 'W'): -3, ('I', 'X'): -1, ('I', 'Y'): -1, ('I', 'Z'): -3, ('K', 'A'): -1, ('K', 'B'): 0, ('K', 'C'): -3, ('K', 'D'): -1, ('K', 'E'): 1, ('K', 'F'): -3, ('K', 'G'): -2, ('K', 'H'): -1, ('K', 'I'): -3, ('K', 'K'): 5, ('K', 'L'): -2, ('K', 'M'): -1, ('K', 'N'): 0, ('K', 'P'): -1, ('K', 'Q'): 1, ('K', 'R'): 2, ('K', 'S'): 0, ('K', 'T'): -1, ('K', 'V'): -2, ('K', 'W'): -3, ('K', 'X'): -1, ('K', 'Y'): -2, ('K', 'Z'): 1, ('L', 'A'): -1, ('L', 'B'): -4, ('L', 'C'): -1, ('L', 'D'): -4, ('L', 'E'): -3, ('L', 'F'): 0, ('L', 'G'): -4, ('L', 'H'): -3, ('L', 'I'): 2, ('L', 'K'): -2, ('L', 'L'): 4, ('L', 'M'): 2, ('L', 'N'): -3, ('L', 'P'): -3, ('L', 'Q'): -2, ('L', 'R'): -2, ('L', 'S'): -2, ('L', 'T'): -1, ('L', 'V'): 1, ('L', 'W'): -2, ('L', 'X'): -1, ('L', 'Y'): -1, ('L', 'Z'): -3, ('M', 'A'): -1, ('M', 'B'): -3, ('M', 'C'): -1, ('M', 'D'): -3, ('M', 'E'): -2, ('M', 'F'): 0, ('M', 'G'): -3, ('M', 'H'): -2, ('M', 'I'): 1, ('M', 'K'): -1, ('M', 'L'): 2, ('M', 'M'): 5, ('M', 'N'): -2, ('M', 'P'): -2, ('M', 'Q'): 0, ('M', 'R'): -1, ('M', 'S'): -1, ('M', 'T'): -1, ('M', 'V'): 1, ('M', 'W'): -1, ('M', 'X'): -1, ('M', 'Y'): -1, ('M', 'Z'): -1, ('N', 'A'): -2, ('N', 'B'): 3, ('N', 'C'): -3, ('N', 'D'): 1, ('N', 'E'): 0, ('N', 'F'): -3, ('N', 'G'): 0, ('N', 'H'): 1, ('N', 'I'): -3, ('N', 'K'): 0, ('N', 'L'): -3, ('N', 'M'): -2, ('N', 'N'): 6, ('N', 'P'): -2, ('N', 'Q'): 0, ('N', 'R'): 0, ('N', 'S'): 1, ('N', 'T'): 0, ('N', 'V'): -3, ('N', 'W'): -4, ('N', 'X'): -1, ('N', 'Y'): -2, ('N', 'Z'): 0, ('P', 'A'): -1, ('P', 'B'): -2, ('P', 'C'): -3, ('P', 'D'): -1, ('P', 'E'): -1, ('P', 'F'): -4, ('P', 'G'): -2, ('P', 'H'): -2, ('P', 'I'): -3, ('P', 'K'): -1, ('P', 'L'): -3, ('P', 'M'): -2, ('P', 'N'): -2, ('P', 'P'): 7, ('P', 'Q'): -1, ('P', 'R'): -2, ('P', 'S'): -1, ('P', 'T'): -1, ('P', 'V'): -2, ('P', 'W'): -4, ('P', 'X'): -2, ('P', 'Y'): -3, ('P', 'Z'): -1, ('Q', 'A'): -1, ('Q', 'B'): 0, ('Q', 'C'): -3, ('Q', 'D'): 0, ('Q', 'E'): 2, ('Q', 'F'): -3, ('Q', 'G'): -2, ('Q', 'H'): 0, ('Q', 'I'): -3, ('Q', 'K'): 1, ('Q', 'L'): -2, ('Q', 'M'): 0, ('Q', 'N'): 0, ('Q', 'P'): -1, ('Q', 'Q'): 5, ('Q', 'R'): 1, ('Q', 'S'): 0, ('Q', 'T'): -1, ('Q', 'V'): -2, ('Q', 'W'): -2, ('Q', 'X'): -1, ('Q', 'Y'): -1, ('Q', 'Z'): 3, ('R', 'A'): -1, ('R', 'B'): -1, ('R', 'C'): -3, ('R', 'D'): -2, ('R', 'E'): 0, ('R', 'F'): -3, ('R', 'G'): -2, ('R', 'H'): 0, ('R', 'I'): -3, ('R', 'K'): 2, ('R', 'L'): -2, ('R', 'M'): -1, ('R', 'N'): 0, ('R', 'P'): -2, ('R', 'Q'): 1, ('R', 'R'): 5, ('R', 'S'): -1, ('R', 'T'): -1, ('R', 'V'): -3, ('R', 'W'): -3, ('R', 'X'): -1, ('R', 'Y'): -2, ('R', 'Z'): 0, ('S', 'A'): 1, ('S', 'B'): 0, ('S', 'C'): -1, ('S', 'D'): 0, ('S', 'E'): 0, ('S', 'F'): -2, ('S', 'G'): 0, ('S', 'H'): -1, ('S', 'I'): -2, ('S', 'K'): 0, ('S', 'L'): -2, ('S', 'M'): -1, ('S', 'N'): 1, ('S', 'P'): -1, ('S', 'Q'): 0, ('S', 'R'): -1, ('S', 'S'): 4, ('S', 'T'): 1, ('S', 'V'): -2, ('S', 'W'): -3, ('S', 'X'): 0, ('S', 'Y'): -2, ('S', 'Z'): 0, ('T', 'A'): 0, ('T', 'B'): -1, ('T', 'C'): -1, ('T', 'D'): -1, ('T', 'E'): -1, ('T', 'F'): -2, ('T', 'G'): -2, ('T', 'H'): -2, ('T', 'I'): -1, ('T', 'K'): -1, ('T', 'L'): -1, ('T', 'M'): -1, ('T', 'N'): 0, ('T', 'P'): -1, ('T', 'Q'): -1, ('T', 'R'): -1, ('T', 'S'): 1, ('T', 'T'): 5, ('T', 'V'): 0, ('T', 'W'): -2, ('T', 'X'): 0, ('T', 'Y'): -2, ('T', 'Z'): -1, ('V', 'A'): 0, ('V', 'B'): -3, ('V', 'C'): -1, ('V', 'D'): -3, ('V', 'E'): -2, ('V', 'F'): -1, ('V', 'G'): -3, ('V', 'H'): -3, ('V', 'I'): 3, ('V', 'K'): -2, ('V', 'L'): 1, ('V', 'M'): 1, ('V', 'N'): -3, ('V', 'P'): -2, ('V', 'Q'): -2, ('V', 'R'): -3, ('V', 'S'): -2, ('V', 'T'): 0, ('V', 'V'): 4, ('V', 'W'): -3, ('V', 'X'): -1, ('V', 'Y'): -1, ('V', 'Z'): -2, ('W', 'A'): -3, ('W', 'B'): -4, ('W', 'C'): -2, ('W', 'D'): -4, ('W', 'E'): -3, ('W', 'F'): 1, ('W', 'G'): -2, ('W', 'H'): -2, ('W', 'I'): -3, ('W', 'K'): -3, ('W', 'L'): -2, ('W', 'M'): -1, ('W', 'N'): -4, ('W', 'P'): -4, ('W', 'Q'): -2, ('W', 'R'): -3, ('W', 'S'): -3, ('W', 'T'): -2, ('W', 'V'): -3, ('W', 'W'): 11, ('W', 'X'): -2, ('W', 'Y'): 2, ('W', 'Z'): -3, ('X', 'A'): 0, ('X', 'B'): -1, ('X', 'C'): -2, ('X', 'D'): -1, ('X', 'E'): -1, ('X', 'F'): -1, ('X', 'G'): -1, ('X', 'H'): -1, ('X', 'I'): -1, ('X', 'K'): -1, ('X', 'L'): -1, ('X', 'M'): -1, ('X', 'N'): -1, ('X', 'P'): -2, ('X', 'Q'): -1, ('X', 'R'): -1, ('X', 'S'): 0, ('X', 'T'): 0, ('X', 'V'): -1, ('X', 'W'): -2, ('X', 'X'): -1, ('X', 'Y'): -1, ('X', 'Z'): -1, ('Y', 'A'): -2, ('Y', 'B'): -3, ('Y', 'C'): -2, ('Y', 'D'): -3, ('Y', 'E'): -2, ('Y', 'F'): 3, ('Y', 'G'): -3, ('Y', 'H'): 2, ('Y', 'I'): -1, ('Y', 'K'): -2, ('Y', 'L'): -1, ('Y', 'M'): -1, ('Y', 'N'): -2, ('Y', 'P'): -3, ('Y', 'Q'): -1, ('Y', 'R'): -2, ('Y', 'S'): -2, ('Y', 'T'): -2, ('Y', 'V'): -1, ('Y', 'W'): 2, ('Y', 'X'): -1, ('Y', 'Y'): 7, ('Y', 'Z'): -2, ('Z', 'A'): -1, ('Z', 'B'): 1, ('Z', 'C'): -3, ('Z', 'D'): 1, ('Z', 'E'): 4, ('Z', 'F'): -3, ('Z', 'G'): -2, ('Z', 'H'): 0, ('Z', 'I'): -3, ('Z', 'K'): 1, ('Z', 'L'): -3, ('Z', 'M'): -1, ('Z', 'N'): 0, ('Z', 'P'): -1, ('Z', 'Q'): 3, ('Z', 'R'): 0, ('Z', 'S'): 0, ('Z', 'T'): -1, ('Z', 'V'): -2, ('Z', 'W'): -3, ('Z', 'X'): -1, ('Z', 'Y'): -2, ('Z', 'Z'): 4})

Returns if the residue and a reference residue are similar

Parameters:
Returns:

1 if the similarity score is positive, otherwise 0.
Return type:

int
getIdentity(ref_res)

Return the identity between the residue and a reference residue

Parameters:ref_res (schrodinger.protein.residue.Residue) – The reference residue
Returns:1 if same as the reference residue, 0 otherwise.
Return type:int
getConservation(ref_res)

Return whether the residue and a reference residue have similar side-chain chemistry.

The similarity criterion is based on “side chain chemistry” descriptor matching.

Parameters:ref_res (schrodinger.protein.residue.Residue) – The reference residue
Returns:1 if the residue and reference residue are have similar side chain chemistry, 0 otherwise.
Return type:int
class schrodinger.protein.residue.DisulfideBond(res1, res2)

Bases: object

Representation of a disulfide bond.

res_pair
isValid()

Check whether the disulfide bond is valid and if so, return its seqs.

Returns:False if the disulfide bond is invalid, the seqs otherwise.
Return type:bool or list(sequence.ProteinSequence, sequence.ProteinSequence)
is_intra_sequence

Check whether the bond is valid and intra-sequence.

Returns:Whether the bond is a valid, intra-sequence bond.
Return type:bool
Raises:ValueError – If the bond is not valid
is_inter_sequence

Check whether the bond is valid and inter-sequence.

Returns:Whether the bond is a valid, inter-sequence bond.
Return type:bool
Raises:ValueError – If the bond is not valid
schrodinger.protein.residue.add_disulfide_bond(res1, res2)

Add a disulfide bond between two residues.

Parameters:
schrodinger.protein.residue.remove_disulfide_bond(res1, res2)

Remove a disulfide bond between two residues.

Parameters:
class schrodinger.protein.residue.Nucleotide(element_type, inscode=' ', resnum=None, seqres_only=False)

Bases: schrodinger.protein.residue.Residue