1L4T: CCK2E3

Solution NMR structure of the CCK2E3. Determined by solution NMR. Released 28 Jan 2003.

Method: Solution NMR
Chains: 1
Atoms: 214
Mol. weight: 2.99 kDa
Released: 28 Jan 2003

Explore 1L4T in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1L4T contains 3 α-helices and 0 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: 3 helices, 0 β-strands

Element	Residues	Length
α-helix	3-8	6
α-helix	13-18	6
α-helix	22-28	7

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Gastrin/cholecystokinin type B receptor	A	protein	30		P32239 (AlphaFold model)

Sequence of entity 1 (A), FASTA

>1L4T_1 Gastrin/cholecystokinin type B receptor (chains A)
XANTWRAFDGPGAHRALSGAPISFIHLLSX

Primary citation

Intermolecular interactions between cholecystokinin-8 and the third extracellular loop of the cholecystokinin-2 receptor. Giragossian, C., Mierke, D.F. Biochemistry (2002) 41:4560-4566. DOI 10.1021/bi0160009 · PubMed

Other PDB entries of the same protein (UniProt P32239 (AlphaFold model), which also has an AlphaFold model), best resolution first:

7F8W 3.1 Å, Cryo-EM structure of the cholecystokinin receptor CCKBR in complex with gastrin-17 and Gq
7XOW 3.1 Å, Structural insights into human brain gut peptide cholecystokinin receptors
8IA7 3.1 Å, Structural insights into human brain gut peptide cholecystokinin receptors
7F8V 3.3 Å, Cryo-EM structure of the cholecystokinin receptor CCKBR in complex with gastrin-17 and Gi

Browse structure collections

About this viewer

MolViewer shows 1L4T directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.