Interaction type | Defined distance | Proton donors | Proton acceptors |
---|---|---|---|
Ionic | < 6Å | Lys N(NH3+) Arg N(NH2+) terminal N(NH3+) | Asp O(COO-) Glu O(COO-), terminal O (COO-) |
Polar Group I | < 4.7Å | Asn N(H2) Cys S(H) Gln N(H2) His N(H) Ser O(H) Thr O(H) Trp N(H) Tyr O(H) N backbone | Asp O(COO-) Glu O(COO-) |
Polar Group II | < 4.7Å | Lys N(NH3+) Arg N(NH2+) | Asn O (C=O) Cys S(H) Gln O(C=O) His N Ser O(H) Thr O(H) Tyr O(H) O backbone |
Polar Group III | < 4.7Å | Asn N(H2) Cys S(H) Gln N(H2) His N(H) Ser O(H) Thr O(H) Trp N(H) Tyr O(H) N backbone | Asn O(C=O) Cys S(H) Gln O(C=O) His N Ser O(H) Thr O(H) Tyr O(H) O backbone |