Table 1 The 6.47-7.45 interaction in the analyzed crystal structures
Crystal structure | TM6-TM7 hydrogen bond | ||||||
|---|---|---|---|---|---|---|---|
Receptor name | Structure name | PDB ID | Res.(Å) | Pair | N7.45 | D… A (Å) | Cβ-D…A (°) |
β2-adrenergic | β2ARINV | 2RH1 [11] | 2.4 | C6.47-N7.45 | CO | 3.8 | 84.5 |
β2ARAGO | 3SN6 [12] | 3.2 | CO | 4.4 | 81.2 | ||
β1-adrenergic (turkey) | β1ARINV | 2VT4 [13] | 2.7 | C6.47-N7.45 | CO | 3.7 | 79.3 |
β1ARAGO | 2Y02 [14] | 2.6 | CO | 3.9 | 85.3 | ||
Dopamine D3 | D3RINV | 3PBL [15] | 2.9 | C6.47-N7.45 | CO | 3.8 | 81.6 |
Histamine H1 | H1RINV | 3RZE [16] | 3.1 | C6.47-N7.45 | CO | 4.2 | 80.9 |
Adenosine A2A | A2ARINV | 4EIY [17] | 1.8 | C6.47-N7.45 | NH2 | 3.9 | 84.5 |
A2ARAGO | 2YDV [18] | 2.6 | CO | 4.3 | 74.4 | ||
κ opioid | κORINV | 4DJH [19] | 2.9 | C6.47-N7.45 | CO | 4.1 | 81.2 |
μ opioid (mouse) | μORINV | 4DKL [20] | 2.8 | C6.47-N7.45 | CO | 3.6 | 87.5 |
δ opioid (mouse) | δORINV | 4EJ4 [21] | 3.4 | C6.47-N7.45 | NH2 | 3.8 | 89.8 |
N/OFQ Opioid | N/OFQINV | 4EA3 [22] | 3.0 | C6.47-N7.45 | NH2 | 4.2 | 85.6 |
Sphingosine 1-phosph. 1 | S1PR1 INV | 3V2Y [23] | 2.8 | C6.47-N7.45 | NH2 | 3.4 | 81.1 |
CXCR4 chemokine | CXCR4INV | 3ODU [24] | 2.5 | C6.47-H7.45 | - | - | - |
M2 musc. ach. | M2RINV | 3UON [25] | 3.0 | T6.47-N7.45 | NH2 | 3.2 | 120.2 |
M3 musc. ach. (rat) | M3RINV | 4DAJ [26] | 3.4 | T6.47-N7.45 | NH2 | 4 | 140.7 |
Rhodopsin (bovine) | bRhoINV | 1GZM [27] | 2.7 | C6.47-T7.44 | - | 3.7 | 101.8 |
bRhoAGO | 3PQR [28] | 2.9 | - | 8.8 | - | ||
Rhodopsin (squid) | sRhoINV | 2Z73 [29] | 2.5 | Q6.43-S7.54 | - | 2.4 | 111.2 |