Primary Citation PubMed: 23435379
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Crystal structure of oligomeric ?1-adrenergic G protein-coupled receptors in ligand-free basal state.
(2013) Nat Struct Mol Biol 20
PubMed: 23435379 | PubMedCentral: PMC3618578 | DOI: 10.1038/nsmb.2504
Atomic coordinates and structure factor files for the oligomeric turkey β 1 -ARs have been deposited in the Protein Data Bank under ID code 4GPO.
Publication Year: 2013
An analysis of oligomerization interfaces in transmembrane proteins.
(2013) BMC Struct Biol 13
PubMed: 24134166 | PubMedCentral: PMC4015793 | DOI: 10.1186/1472-6807-13-21
core-rim core-surface 2i35 A + A 316.6 0 + 0 2 + 2 105 0.39* -0.20* 2i36 C + C 684.5 1 + 1 1 + 1 105 0.47 (b) -0.35 (x) A... 09;+ B 509.9 1 + 1 2 + 2 105 1.08* 0.50* 2i37 A + B 418.2 0 + 0 2 + 2 105 0.45* -0.23* C + C 413.2 0 + 0 2 + 2 105 0.41* -0.25* 3odu A + B 1209.3(797.9) 0 + 0 52 1.28 (x) 1.55 (x) 3oe0 A + A 1089.4(1086.8) 0 + 0 83 1.55 (x) 1.71 (x) 3oe6 A + A 1037.6(764.8) 0 + 0 94 1.67 (x) 2.80 (x) 3oe8 B + C 665.2(591.9) 0 + 0 3 + 4 83 0.83* 0.32* 3oe9 A + B 959.4(877.4) 0 + 0 102 1.46 (x) 1.70 (x) 4djh A + B 1024.0 1 + 1 106 1.42 (x) 0.85 (x) 4gpo A + B 833.5 0 + 0 71 1.74 (x) 2.79 (x) 4jkv A + B 1237.7 6 + 6 16 0.43 (b) -1.90 (b) 3sn6 A + R 1263.1 2 + 6 103,136 0.34 (b) -2.41 (b) Analysis of a set of class A GPCR dimer interfaces proposed in the literature plus the proposed dimer interface for the human Smoothened receptor [PDB: 4jkv] and the β2 adrenergic receptor to G-protein interface [PDB: 3sn6].
•Turkey β1 adrenergic receptor [PDB: 4gpo] [ 28 ]: in this case the crystallization strategy did not involve engineering of a fusion protein, but a set of stabilizing mutations plus removal of a loop.
A functional selectivity mechanism at the serotonin-2A GPCR involves ligand-dependent conformations of intracellular loop 2.
(2014) J Am Chem Soc 136
PubMed: 25314362 | PubMedCentral: PMC4235374 | DOI: 10.1021/ja508394x
To this end, we used the β 1 adrenergic receptor homodimer as a structural template to construct pseudodimer structures of 5-HT 2A R conformations resulting from our various MD simulations by ... ligning the simulated GPCR structures at each point in time, with each of the β 1 protomers (PDB accession code 4GPO, TM4-TM5-ICL2 interface).
After alignment to the crystal structure of the β 1 adrenergic receptor in its ligand-free form (4GPO.
Publication Year: 2014
PubMed ID is not available.
Published in 2015
The closest structure to the identified TM5/TM5 in μ-OR simulations was the interface termed TM4,5/TM4,5 in the B1AR crystal structure corresponding to PDB code 4GPO (RMSD of 8.82 Å, a... ter overlapping the formed dimer with chain A of 4GPO and its periodic image).
The closest crystal structure to the TM1,2,H8/TM1,2,H8 interface that forms during μ-OR simulations is not the one inferred by the μ-OR crystal structure (4DKL [ 12 ]), but rather the one suggested by a β1-adrenergic receptor (B1AR) crystal structure (4GPO [ 23 ]).
2A , 3A , and 4A show, as an example, the TM1,2,H8/TM1,2,H8 homo-dimer interfaces formed during simulation of δ-OR, κ-OR, and μ-OR, respectively, overlapped onto the closest crystal structures, i.e., 4DJH or 4GPO.
Publication Year: 2015
Dimers of hD 3 with an interface including TMD I were constructed based on those observed in the “dimer” crystal structures of the inactive, mutationally stabilized turkey β 1 ... adrenoreceptor (PDB code 4GPO ) ( 25 ).
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