1GFI: PDB entry 1GFI

Structures of active conformations of gi alpha 1 and the mechanism of GTP hydrolysis. Determined by X-ray diffraction at 2.2 Å resolution. Released 31 Mar 1995.

Method
X-ray diffraction
Resolution
2.2 Å
Chains
1
Atoms
2,641
Mol. weight
40.84 kDa
Released
31 Mar 1995

Explore 1GFI in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1GFI contains 18 α-helices and 8 β-strands across 1 chain. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 18 helices, 8 β-strands

ElementResiduesLengthSheet
β-strand34-3961
α-helix46-5712
α-helix63-686
α-helix70-9021
α-helix100-11516
α-helix121-13111
α-helix134-1407
α-helix143-1453
α-helix152-1576
α-helix159-1624
α-helix171-1755
β-strand184-19181
β-strand194-20181
α-helix205-21410
β-strand220-22671
α-helix227-2293
β-strand233-23422
β-strand237-24152
α-helix242-25413
α-helix257-2593
β-strand263-26971
α-helix271-2788
α-helix283-2853
α-helix296-30813
β-strand319-32351
α-helix329-34416

Primary citation

Structures of active conformations of Gi alpha 1 and the mechanism of GTP hydrolysis. Coleman, D.E., Berghuis, A.M., Lee, E. et al. Science (1994) 265:1405-1412. PubMed

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