1JCC: Novel Alanine-Zipper Trimer

Crystal Structure of a Novel Alanine-Zipper Trimer at 1.7 A Resolution, V13A,L16A,V20A,L23A,V27A,M30A,V34A mutations. Determined by X-ray diffraction at 1.7 Å resolution. Released 17 Jun 2003.

Method: X-ray diffraction
Resolution: 1.7 Å
Organism: Escherichia coli
Chains: 3
Atoms: 1,331
Mol. weight: 17.91 kDa
Ligands: ZN
Released: 17 Jun 2003

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

Secondary structure: helices and β-sheets

1JCC contains 3 α-helices and 0 β-strands across 3 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.

Chains A and C: 1 helix, 0 β-strands

Element	Residues	Length	Sheet
α-helix	4-49	46

Chain B: 1 helix, 0 β-strands

Element	Residues	Length	Sheet
α-helix	4-50	47

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Major outer membrane lipoprotein	A, B, C	protein	56	Escherichia coli	P69776 (AlphaFold model)

Sequence of entity 1 (A, B, C), FASTA

>1JCC_1 MAJOR OUTER MEMBRANE LIPOPROTEIN (chains A, B, C)
SSNAKIDQLSSDAQTANAKADQASNDANAARSDAQAAKDDAARANQRLDNMATKYR

Ligands and cofactors

ID	Name	Formula	Copies
ZN	Zinc ion	Zn	3

Primary citation

Zinc-Mediated Helix Capping in A Triple-Helical Protein. Liu, J., Dai, J., Lu, M. Biochemistry (2003) 42:5657-5664. DOI 10.1021/bi026828a · PubMed

Other PDB entries of the same protein (UniProt P69776 (AlphaFold model), which also has an AlphaFold model), best resolution first:

1JCD 1.3 Å, Crystal Structure of a Novel Alanine-Zipper Trimer at 1.3 A Resolution,…
2GUV 1.4 Å, Conformational Transition between Four- and Five-stranded Phenylalanine Zippers…
1T8Z 1.45 Å, Atomic Structure of A Novel Tryptophan-Zipper Pentamer
1KFN 1.65 Å, Core side-chain packing and backbone conformation in Lpp-56 coiled-coil mutants
2GUS 1.75 Å, Conformational Transition between Four- and Five-stranded Phenylalanine Zippers…
1EQ7 1.9 Å, Core structure of the outer membrane lipoprotein from escherichia coli at 1.9 Å resolution
1KFM 2.0 Å, Core side-chain packing and backbone conformation in Lpp-56 coiled-coil mutants
9RLC 2.8 Å, LolCDE complex with Lpp lipoprotein
9RLD 3.0 Å, LolCDE complex with Lpp lipoprotein
7ARJ 3.2 Å, LolCDE in complex with lipoprotein and AMPPNP complex undimerized form
7ARL 3.2 Å, LolCDE in complex with lipoprotein and ADP
7ARH 3.3 Å, LolCDE in complex with lipoprotein

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