TABLE 2.
Hydrogen bonds and salt bridges at D1-D2 or D2-D3 interface
| D1-D2 interface | ||||
|---|---|---|---|---|
| D1 | D2 | Distancea |
||
| FcγRI | FcϵRI | FcγRIII | ||
| Å | ||||
| Trp- 30 NE1 | Arg-123 NH1 | 2.8 | 2.8 | |
| Val-31 N | Val-109 O | 3.0 | ||
| Val-31 O | Arg-112 NH2 | 3.1 | 3.3 | |
| Ser-32 O | Gln-108 NE2 | 2.9 | 3.0 | 3.5 |
| Glu-37 OE1 | His-125 NE2 | 2.8 | 2.8 | 2.8 |
| Glu-99 OE1 | Arg-112 NH1 | 3.4 | ||
| D2-D3 interface | ||||
|---|---|---|---|---|
| D2 | D3 | Distancea |
||
| FcγRI | FcϵRI | FcγRIII | ||
| Å | ||||
| Glu-116 OE1 | Leu-188 N | 2.8 | ||
| Glu-116 OE2 | Lys-271 NZ | 3.2 | ||
| Gly-117 O | Asn-268 ND2 | 3.4 | ||
| Lys-157 NZ | Asn-268 OD1 | 3.5 | ||
| Glu-187 OE2 | Lys-271 NZ | 3.2 | ||
a Hydrogen bond distance cutoff is <3.5 Å.