1FNB: Spinach ferredoxin reductase

Refined crystal structure of spinach ferredoxin reductase at 1.7 Å resolution: oxidized, reduced, and 2'-phospho-5'-AMP bound states. Determined by X-ray diffraction at 1.7 Å resolution. Released 20 Apr 1995.

Method
X-ray diffraction
Resolution
1.7 Å
Organism
Spinacia oleracea
Chains
1
Atoms
2,636
Mol. weight
36.36 kDa
Ligands
FAD, PO4
Released
20 Apr 1995

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

Secondary structure: helices and β-sheets

1FNB contains 13 α-helices and 24 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: 13 helices, 24 β-strands

ElementResiduesLengthSheet
β-strand2211
β-strand3212
β-strand3313
β-strand3613
β-strand38-47104
β-strand57-6374
β-strand75-7954
β-strand8315
β-strand8915
α-helix90-923
β-strand93-9644
β-strand110-11674
α-helix117-1182
β-strand119-12136
β-strand127-12936
α-helix131-1388
β-strand144-15184
α-helix156-1572
β-strand15811
β-strand164-17077
α-helix171-1744
α-helix175-1817
α-helix182-1865
β-strand18918
β-strand19218
β-strand197-20487
α-helix207-2093
α-helix213-22210
β-strand227-23377
β-strand23819
β-strand24419
α-helix247-2526
α-helix255-2617
β-strand267-27377
α-helix277-29014
α-helix296-30510
β-strand309-31357

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Ferredoxin-NADP+ reductaseAprotein314Spinacia oleraceaP00455 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>1FNB_1 FERREDOXIN-NADP+ REDUCTASE (chains A)
QIASDVEAPPPAPAKVEKHSKKMEEGITVNKFKPKTPYVGRCLLNTKITGDDAPGETWHM
VFSHEGEIPYREGQSVGVIPDGEDKNGKPHKLRLYSIASSALGDFGDAKSVSLCVKRLIY
TNDAGETIKGVCSNFLCDLKPGAEVKLTGPVGKEMLMPKDPNATIIMLGTGTGIAPFRSF
LWKMFFEKHDDYKFNGLAWLFLGVPTSSSLLYKEEFEKMKEKAPDNFRLDFAVSREQTNE
KGEKMYIQTRMAQYAVELWEMLKKDNTYVYMCGLKGMEKGIDDIMVSLAAAEGIDWIEYK
RQLKKAEQWNVEVY

Ligands and cofactors

IDNameFormulaCopies
FADFlavin-adenine dinucleotideC27 H33 N9 O15 P21
PO4Phosphate ionO4 P1

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

Primary citation

Refined crystal structure of spinach ferredoxin reductase at 1.7 A resolution: oxidized, reduced and 2'-phospho-5'-AMP bound states. Bruns, C.M., Karplus, P.A. J Mol Biol (1995) 247:125-145. DOI 10.1006/jmbi.1994.0127 · PubMed

Other PDB entries of the same protein (UniProt P00455 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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