ReDisulphID

a tool for identifying drug-targetable redox-active disulphides

Phosphatidylinositol 3-kinase regulatory subunit alpha

Intramolecular
Cysteine 659 and cysteine 670
Cysteine 656 and cysteine 659
A redox-regulated disulphide may form within Phosphatidylinositol 3-kinase regulatory subunit alpha between cysteines 659 and 670 (46 and 57 respectively in this structure).

Details

Redox score ?
65
PDB code
1qad
Structure name
crystal structure of the c-terminal sh2 domain of the p85 alpha regulatory subunit of phosphoinositide 3-kinase: an sh2 domain mimicking its own substrate
Structure deposition date
1999-02-26
Thiol separation (Å)
5
Half-sphere exposure sum ?
72
Minimum pKa ?
8
% buried
92
Peptide accession
P23727
Residue number A
659
Residue number B
670
Peptide name
Phosphatidylinositol 3-kinase regulatory subunit alpha

Ligandability

Cysteine 659 of Phosphatidylinositol 3-kinase regulatory subunit alpha

Cysteine 670 of Phosphatidylinositol 3-kinase regulatory subunit alpha

A redox-regulated disulphide may form within Phosphatidylinositol 3-kinase regulatory subunit alpha between cysteines 656 and 659 (43 and 46 respectively in this structure). However, the redox score of this cysteine pair is lower than any known redox-active intermolecular disulphide. ?

Details

Redox score ?
37
PDB code
1bfi
Structure name
solution structure of the c-terminal sh2 domain of the p85alpha regulatory subunit of phosphoinositide 3-kinase, nmr, 30 structures
Structure deposition date
1997-11-18
Thiol separation (Å)
10
Half-sphere exposure sum ?
59
Minimum pKa ?
9
% buried
50
Peptide accession
P23727
Residue number A
656
Residue number B
659
Peptide name
Phosphatidylinositol 3-kinase regulatory subunit alpha

Ligandability

Cysteine 656 of Phosphatidylinositol 3-kinase regulatory subunit alpha

Cysteine 659 of Phosphatidylinositol 3-kinase regulatory subunit alpha

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