ReDisulphID

a tool for identifying drug-targetable redox-active disulphides

Guanine nucleotide-binding protein G(t) subunit alpha-1

Intermolecular
Cysteine 210 and cysteine 62
Cysteine 140 of Rhodopsin and cysteine 347
A redox-regulated disulphide may form between two units of Guanine nucleotide-binding protein G(t) subunit alpha-1 at cysteines 210 and 62. However, the redox score of this cysteine pair is lower than any known redox-active intermolecular disulphide. ?

Details

Redox score ?
43
PDB code
1tnd
Structure name
the 2
Structure deposition date
1994-03-31
Thiol separation (Å)
8
Half-sphere exposure sum ?
70
Minimum pKa ?
12
% buried
90
Peptide A name
Guanine nucleotide-binding protein G(t) subunit alpha-1
Peptide B name
Guanine nucleotide-binding protein G(t) subunit alpha-1
Peptide A accession
P04695
Peptide B accession
P04695
Peptide A residue number
210
Peptide B residue number
62

Ligandability

Cysteine 210 of Guanine nucleotide-binding protein G(t) subunit alpha-1

Cysteine 62 of Guanine nucleotide-binding protein G(t) subunit alpha-1

A redox-regulated disulphide may form between cysteine 140 of Rhodopsin and cysteine 347 of Guanine nucleotide-binding protein G(t) subunit alpha-1. However, the redox score of this cysteine pair is lower than any known redox-active intermolecular disulphide. ?

Details

Redox score ?
34
PDB code
3dqb
Structure name
crystal structure of the active g-protein-coupled receptor opsin in complex with a c-terminal peptide derived from the galpha subunit of transducin
Structure deposition date
2008-07-09
Thiol separation (Å)
9
Half-sphere exposure sum ?
72
Minimum pKa ?
11
% buried
79
Peptide A name
Rhodopsin
Peptide B name
Guanine nucleotide-binding protein G(t) subunit alpha-1
Peptide A accession
P02699
Peptide B accession
P04695
Peptide A residue number
140
Peptide B residue number
347

Ligandability

Cysteine 140 of Rhodopsin

Cysteine 347 of Guanine nucleotide-binding protein G(t) subunit alpha-1

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