3C9L

Structure of ground-state bovine rhodospin in a hexagonal crystal form

Summary for 3C9L

• Entry DOI: 10.2210/pdb3c9l/pdb
• Descriptor: Rhodopsin, beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose, ZINC ION, ... (10 entities in total)
• Functional Keywords: photoreceptor, retinal protein, visual pigment, g-protein coupled receptor, integral membrane protein, palmitate, phosphorylation, alternate space group, chromophore, glycoprotein, lipoprotein, phosphoprotein, photoreceptor protein, sensory transduction, transducer, transmembrane, vision, signaling protein
• Biological source: Bos taurus (Bovine)
• Total number of polymer chains: 1
• Total formula weight: 43871.28

Authors

Stenkamp, R.E. (deposition date: 2008-02-16, release date: 2008-08-05, Last modification date: 2023-08-30)

Primary citation

Stenkamp, R.E.
Alternative models for two crystal structures of bovine rhodopsin.
Acta Crystallogr.,Sect.D, 64:902-904, 2008

PubMed Abstract: The space-group symmetry of two crystal forms of rhodopsin (PDB codes 1gzm and 2j4y; space group P3(1)) can be re-interpreted as hexagonal (space group P6(4)). Two molecules of the G protein-coupled receptor are present in the asymmetric unit in the trigonal models. However, the noncrystallographic twofold axes parallel to the c axis can be treated as crystallographic symmetry operations in the hexagonal space group. This halves the asymmetric unit and makes all of the protein molecules equivalent in these structures. Corrections for merohedral twinning were also applied in the refinement in the higher symmetry space group for one of the structures (2j4y).

PubMed: 18645239
DOI: 10.1107/S0907444908017162

Experimental method

X-RAY DIFFRACTION (2.646 Å)