4FF7: Triosephosphate isomerase

Structure of C126S mutant of Saccharomyces cerevisiae triosephosphate isomerase. Determined by X-ray diffraction at 1.86 Å resolution. Released 22 Aug 2012.

Method
X-ray diffraction
Resolution
1.86 Å
Organism
Saccharomyces cerevisiae
Chains
2
Atoms
4,211
Mol. weight
55.38 kDa
Ligands
PO4, PGA
Released
22 Aug 2012

Explore 4FF7 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4FF7 contains 31 α-helices and 20 β-strands across 2 chains. 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: 16 helices, 10 β-strands

ElementResiduesLengthSheet
α-helix3-42
β-strand5-1061
β-strand1312
α-helix17-2913
β-strand36-4161
α-helix44-463
α-helix47-537
β-strand59-6351
β-strand7213
α-helix80-856
β-strand90-9341
α-helix96-1016
α-helix106-11813
β-strand122-12761
α-helix131-1355
α-helix139-15315
β-strand160-16451
α-helix167-1693
α-helix175-1773
α-helix178-19619
α-helix198-2036
β-strand206-20941
α-helix217-2204
β-strand228-23141
α-helix233-2364
α-helix239-2446
Chain B: 15 helices, 10 β-strands
ElementResiduesLengthSheet
α-helix3-53
β-strand6-1054
β-strand1313
α-helix17-2913
β-strand37-4154
α-helix44-463
α-helix47-537
β-strand59-6354
β-strand7212
α-helix80-856
β-strand90-9344
α-helix96-1016
α-helix106-11813
β-strand122-12764
α-helix131-1355
α-helix139-15113
β-strand160-16454
α-helix167-1693
α-helix178-19619
α-helix198-2036
β-strand206-20834
α-helix217-2204
β-strand228-23144
α-helix233-2364
α-helix240-2445

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Triosephosphate isomeraseA, Bprotein248Saccharomyces cerevisiaeP00942 (AlphaFold model)
Sequence of entity 1 (A, B), FASTA
>4FF7_1 Triosephosphate isomerase (chains A, B)
MARTFFVGGNFKLNGSKQSIKEIVERLNTASIPENVEVVICPPATYLDYSVSLVKKPQVT
VGAQNAYLKASGAFTGENSVDQIKDVGAKWVILGHSERRSYFHEDDKFIADKTKFALGQG
VGVILSIGETLEEKKAGKTLDVVERQLNAVLEEVKDWTNVVVAYEPVWAIGTGLAATPED
AQDIHASIRKFLASKLGDKAASELRILYGGSANGSNAVTFKDKADVDGFLVGGASLKPEF
VDIINSRN

Ligands and cofactors

IDNameFormulaCopies
PO4Phosphate ionO4 P3
PGA2-phosphoglycolic acidC2 H5 O6 P1

Water and common crystallization additives (SO4, NA, GOL) are not listed.

Primary citation

Effects of a buried cysteine-to-serine mutation on yeast triosephosphate isomerase structure and stability. Hernandez-Santoyo, A., Dominguez-Ramirez, L., Reyes-Lopez, C.A. et al. Int J Mol Sci (2012) 13:10010-10021. DOI 10.3390/ijms130810010 · PubMed

Other PDB entries of the same protein (UniProt P00942 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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