2IJK: Rom protein dimer

Structure of a Rom protein dimer at 1.55 angstrom resolution. Determined by X-ray diffraction at 1.55 Å resolution. Released 16 Oct 2007.

Method: X-ray diffraction
Resolution: 1.55 Å
Organism: Escherichia coli
Chains: 2
Atoms: 1,077
Mol. weight: 14.33 kDa
Released: 16 Oct 2007

Explore 2IJK in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

2IJK contains 4 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: 2 helices, 0 β-strands

Element	Residues	Length	Sheet
α-helix	3-28	26
α-helix	32-56	25

Chain B: 2 helices, 0 β-strands

Element	Residues	Length	Sheet
α-helix	2-28	27
α-helix	32-56	25

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Regulatory protein rop	A, B	protein	63	Escherichia coli	P03051 (AlphaFold model)

Sequence of entity 1 (A, B), FASTA

>2IJK_1 Regulatory protein rop (chains A, B)
GTKQEKTALNMARFIRSQTLTLLEKLNELDADEQADICESLHDHADELYRSCLARFGDDG
ENL

Primary citation

New crystal structures of ColE1 Rom and variants resulting from mutation of a surface exposed residue: Implications for RNA-recognition. Struble, E.B., Ladner, J.E., Brabazon, D.M. et al. Proteins (2008) 72:761-768. DOI 10.1002/prot.21965 · PubMed

Other PDB entries of the same protein (UniProt P03051 (AlphaFold model), which also has an AlphaFold model), best resolution first:

1NKD 1.09 Å, Atomic resolution (1.07 Å) structure of the rop mutant <2AA>
1RPO 1.4 Å, Restored heptad pattern continuity does not alter the folding of a 4-alpha-helical bundle
4DO2 1.4 Å, Crystal Structure of the Rop protein mutant D30P/A31G at resolution 1.4 resolution.
7KAE 1.6 Å, Rop protein variant with a buried tryptophan
1ROP 1.7 Å, Structure of the COL*E1 rop protein at 1.7 Å resolution
1B6Q 1.8 Å, Alanine 31 proline mutant of rop protein
2IJH 1.8 Å, Crystal structure analysis of ColE1 ROM mutant F14W
1GTO 1.82 Å, High resolution structure of a hyperstable helical bundle protein mutant
1F4N 1.9 Å, C2 crystal structure of ALA2ILE2-6, a version of rop with a repacked hydrophobic core…
1GMG 1.9 Å, Alanine 31 proline mutant of rop protein, monoclinic form
2IJJ 1.9 Å, Crystal structure analysis of ColE1 ROM mutant F14Y
3K79 1.96 Å, C38A, C52V Cysteine-Free Variant of Rop (Rom)

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