6FBW: 14-3-3 protein sigma

Crystal structure of C-terminal modified Tau peptide-hybrid 4.2f-II with 14-3-3sigma. Determined by X-ray diffraction at 1.45 Å resolution. Released 16 May 2018.

Method: X-ray diffraction
Resolution: 1.45 Å
Organism: Homo sapiens
Chains: 4
Atoms: 4,742
Mol. weight: 55.4 kDa
Ligands: D4K
Released: 16 May 2018

Explore 6FBW in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

6FBW contains 26 α-helices and 0 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: 12 helices, 0 β-strands

Element	Residues	Length
α-helix	3-15	13
α-helix	19-30	12
α-helix	34-37	4
α-helix	38-69	32
α-helix	80-102	23
α-helix	103-107	5
α-helix	114-134	21
α-helix	141-161	21
α-helix	167-182	16
α-helix	187-204	18
α-helix	205-207	3
α-helix	210-230	21

Chain C: 14 helices, 0 β-strands

Element	Residues	Length
α-helix	3-15	13
α-helix	19-30	12
α-helix	34-37	4
α-helix	38-69	32
α-helix	80-102	23
α-helix	103-107	5
α-helix	108-110	3
α-helix	114-134	21
α-helix	137-161	25
α-helix	167-178	12
α-helix	179-183	5
α-helix	187-202	16
α-helix	205-207	3
α-helix	213-230	18

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
14-3-3 protein sigma	A, C	protein	236	Homo sapiens	P31947 (AlphaFold model)
Arg-thr-pro-sep-leu-pro-gly	B, D	protein	7	Homo sapiens	P10636 (AlphaFold model)

Sequence of entity 1 (A, C), FASTA

>6FBW_1 14-3-3 protein sigma (chains A, C)
GAMGSMERASLIQKAKLAEQAERYEDMAAFMKGAVEKGEELSCEERNLLSVAYKNVVGGQ
RAAWRVLSSIEQKSNEEGSEEKGPEVREYREKVETELQGVCDTVLGLLDSHLIKEAGDAE
SRVFYLKMKGDYYRYLAEVATGDDKKRIIDSARSAYQEAMDISKKEMPPTNPIRLGLALN
FSVFHYEIANSPEEAISLAKTTFDEAMADLHTLSEDSYKDSTLIMQLLRDNLTLWT

Sequence of entity 2 (B, D), FASTA

>6FBW_2 ARG-THR-PRO-SEP-LEU-PRO-GLY (chains B, D)
RTPSLPG

Ligands and cofactors

ID	Name	Formula	Copies
D4K	(2~{R})-2-[(~{S})-(3-methoxyphenyl)-phenyl-methyl]pyrrolidine	C18 H21 N O	2

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

Primary citation

Inhibition of 14-3-3/Tau by Hybrid Small-Molecule Peptides Operating via Two Different Binding Modes. Andrei, S.A., Meijer, F.A., Neves, J.F. et al. ACS Chem Neurosci (2018) 9:2639-2654. DOI 10.1021/acschemneuro.8b00118 · PubMed

Other PDB entries of the same protein (UniProt P31947 (AlphaFold model), which also has an AlphaFold model), best resolution first:

3IQU 1.05 Å, Crystal Structure of human 14-3-3 sigma in Complex with Raf1 peptide (6mer)
7AZ2 1.08 Å, 14-3-3 sigma with Pin1 binding site pS72 and covalently bound LvD1014
6HMT 1.1 Å, Ternary complex of Estrogen Receptor alpha peptide and 14-3-3 sigma C42 mutant bound to…
7BAA 1.1 Å, Cys-42-tethered stabilizer 12 of 14-3-3(sigma)/ERa PPI
8BZC 1.1 Å, co-soaked stabilizers for ERa - 14-3-3 interaction (884_AZ244)
8BZW 1.1 Å, Co-soaked stabilizers for ERa - 14-3-3 interaction (844_AZ210)
8C04 1.1 Å, Co-soaked stabilizers for ERa - 14-3-3 interaction (884_AZ354)
9GG8 1.1 Å, Crystal structure of 14-3-3 sigma dC - C38N in complex with Tau pS214 peptide and…
8ANC 1.11 Å, 14-3-3 sigma sirtuin-3 phospho-peptide complex
6Y1J 1.13 Å, 14-3-3 sigma in complex with IkappaBalpha pS63 peptide
6G6X 1.13 Å, 14-3-3sigma in complex with a P129beta3P mutated YAP pS127 phosphopeptide
6NV2 1.13 Å, 14-3-3 sigma with RelA/p65 binding site pS45 in complex with DP005

Browse structure collections

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