A gallery of membrane protein structures solved using crystals grown by the lipidic cubic phase or in meso method. A single representative structure within a membrane protein class is shown along with diffraction resolution and hyperlinked PDB identifier. The figure at the bottom of each panel refers to the number of record entries in the PDB for that particular membrane protein class. Thus, within the peptide class there are 3 records for gramicidin D at different resolutions. Within the β-barrel class there are 7 entries, 1 each for BtuB, OpcA, Intimin, and Invasin, and 3 for OmpF. Within the G protein-coupled receptor class there are 26 records: 1 for the β2-adrenoreceptor-Gs complex, 7 for the β2-adrenorecptor, 3 for the A2a-adenosine receptor, 5 for the CXCR4 receptor, 2 for the sphingosine 1-phosphate subtype 1 receptor, and 1 each for the D3 dopamine receptor, the H1 histamine receptor, the M2 muscarinic receptor, the M3. muscarinic receptor, the δ-opioid receptor, the κ-opioid receptor, the μ-opioid receptor, and the nociceptin receptor. Within the non-GPCR rhodopsin class there are 53 records with 38 for bacteriorhodopsin, 3 for halorhodopsin, 6 for sensory rhodopsin II, 3 for the sensory rhodopsin II/transducer complex, and 1 each for sensory rhodopsin from Nostoc sp. Pcc 7120 and for rhodopin from Acetabularia acetabulum. Within the light harvesting complex class there is a single entry for LHII. Within the photosynthetic reaction center class there are 5 and 4 entries for the reaction centers from Blastochloris viridis and Rhodobacter sphaeroides, respectivly. Within the cytochrome oxidase class there are 2 entries for ba3 and 1 for caa3. Within the exchanger group there is a single entry for the Na+-Ca2+ exchanger. As of June 2012, the total count for in meso structures in the PDB is 103. Hyperlinks: 2Y5M; 2GUF; 3SN6; 1M0K; 2FKW; 2WJN; 2YEV; 3V5U