1CBN: Crambin

Atomic resolution (0.83 Å) crystal structure of the hydrophobic protein crambin at 130 K. Determined by X-ray diffraction at 0.83 Å resolution. Released 31 Jan 1994.

Method: X-ray diffraction
Resolution: 0.83 Å
Organism: Crambe hispanica subsp. abyssinica
Chains: 1
Atoms: 405
Mol. weight: 4.77 kDa
Ligands: EOH
Released: 31 Jan 1994

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

Secondary structure: helices and β-sheets

1CBN contains 2 α-helices and 2 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: 2 helices, 2 β-strands

Element	Residues	Length	Sheet
β-strand	2-3	2	1
α-helix	7-17	11
α-helix	23-30	8
β-strand	33-34	2	1

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Crambin	A	protein	46	Crambe hispanica subsp. abyssinica	P01542 (AlphaFold model)

Sequence of entity 1 (A), FASTA

>1CBN_1 CRAMBIN (chains A)
TTCCPSIVARSNFNVCRLPGTSEAICATYTGCIIIPGATCPGDYAN

Ligands and cofactors

ID	Name	Formula	Copies
EOH	Ethanol	C2 H6 O	1

Primary citation

Atomic resolution (0.83 A) crystal structure of the hydrophobic protein crambin at 130 K. Teeter, M.M., Roe, S.M., Heo, N.H. J Mol Biol (1993) 230:292-311. DOI 10.1006/jmbi.1993.1143 · PubMed

Other PDB entries of the same protein (UniProt P01542 (AlphaFold model), which also has an AlphaFold model), best resolution first:

3NIR 0.48 Å, Crystal structure of small protein crambin at 0.48 A resolution
1EJG 0.54 Å, Crambin at ultra-high resolution: valence electron density.
9EWK 0.7 Å, Solvent organization in ultrahigh-resolution protein crystal structure at room temperature
3U7T 0.85 Å, Room temperature ultra-high resolution time-of-flight neutron and X-ray diffraction…
9PIS 0.85 Å, Ab initio structure of crambin by MicroED at 0.85A
1AB1 0.89 Å, Si form crambin
1JXT 0.89 Å, Crambin mixed sequence form at 160 K. Protein/water substates
1JXW 0.89 Å, Crambin mixed sequence form at 180 K. Protein/water substates
1JXX 0.89 Å, Crambin mixed sequence form at 200 K. Protein/water substates
1JXY 0.89 Å, Crambin mixed sequence form at 220 K. Protein/water substates
1JXU 0.99 Å, Crambin mixed sequence form at 240 K. Protein/water substates
1CNR 1.05 Å, Correlated disorder of the pure PRO22(SLASH)LEU25 form of crambin at 150K refined to…

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