8R5K: The Fk1 domain of FKBP51

The Fk1 domain of FKBP51 in complex with Antascomicine B. Determined by X-ray diffraction at 0.89 Å resolution. Released 8 May 2024.

Method: X-ray diffraction
Resolution: 0.89 Å
Organism: Homo sapiens
Chains: 1
Atoms: 1,355
Mol. weight: 14.7 kDa
Ligands: Y6Z
Released: 8 May 2024

Explore 8R5K in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8R5K contains 6 α-helices and 9 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: 6 helices, 9 β-strands

Element	Residues	Length	Sheet
α-helix	14-21	8
α-helix	22	1
β-strand	23-24	2	1
β-strand	33-39	7	1
β-strand	52-61	10	1
β-strand	66-69	4	1
α-helix	71-73	3
β-strand	77-80	4	1
α-helix	88-95	8
α-helix	97-98	2
β-strand	102-107	6	1
α-helix	109-111	3
β-strand	118	1	2
β-strand	122	1	2
β-strand	128-138	11	1

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Peptidyl-prolyl cis-trans isomerase FKBP5	A	protein	128	Homo sapiens	Q13451 (AlphaFold model)

Sequence of entity 1 (A), FASTA

>8R5K_1 Peptidyl-prolyl cis-trans isomerase FKBP5 (chains A)
GAPATVTEQGEDITSKKDRGVLKIVKRVGNGEETPMIGDKVYVHYKGKLSNGKKFDSSHD
RNEPFVFSLGKGQVIKAWDIGVATMKKGEICHLLCKPEYAYGSAGSLPKIPSNATLFFEI
ELLDFKGE

Ligands and cofactors

ID	Name	Formula	Copies
Y6Z	Antascomicine B	C37 H57 N O10	1

Primary citation

Antascomicin B stabilizes FKBP51-Akt1 complexes as a molecular glue. Schafer, S.C., Voll, A.M., Bracher, A. et al. Bioorg Med Chem Lett (2024) 104:129728-129728. DOI 10.1016/j.bmcl.2024.129728 · PubMed

Other PDB entries of the same protein (UniProt Q13451 (AlphaFold model), which also has an AlphaFold model), best resolution first:

7AOT 0.85 Å, The Fk1 domain of FKBP51 in complex with (2R,5S,12R)-12-cyclohexyl-2-[2-(3,4-dimethoxyphe…
7APW 0.89 Å, The Fk1 domain of FKBP51 in complex with (1S,5S,6R)-10-(benzo[d]thiazol-6-ylsulfonyl)-5-(…
7APS 0.94 Å, The Fk1 domain of FKBP51 in complex with (2S)-2-((1S,5R,6R)-10-((3,5-dichlorophenyl)sulfo…
3O5Q 0.96 Å, Fk1 domain mutant A19T of FKBP51, crystal form IV, in presence of DMSO
6TX6 0.98 Å, Crystal structure of human FKBP51 FK1 domain A19T mutant in complex with nicotinamide
8CHN 0.99 Å, The FK1 domain of FKBP51 in complex with (1S,5S,6R)-10-((S)-(3,5-dichlorophenyl)sulfonimi…
3O5P 1.0 Å, Fk1 domain mutant A19T of FKBP51, crystal form IV
4DRQ 1.0 Å, Exploration of Pipecolate Sulfonamides as Binders of the FK506-Binding Proteins 51 and…
5OBK 1.0 Å, The Fk1 domain of FKBP51 in complex with (1S,5S,6R)-10-((3,5-dichlorophenyl)sulfonyl)-5-(…
8CHP 1.0 Å, The FK1 domain of FKBP51 in complex with (1S,5S,6R)-10-((S)-(3,5-dichlorophenyl)sulfinyl)…
8CHQ 1.01 Å, The FK1 domain of FKBP51 in complex with (1S,5S,6R)-10-((S)-3,5-dichloro-N-methylphenylsu…
4JFM 1.02 Å, Increasing the Efficiency Efficiency of Ligands for the FK506-Binding Protein 51 by…

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