Table 2.
Relative contributions of different amino acid sidechains to the interprotein attractions. Hyp is hydroxyproline; all other residues are standard. Amino acids are listed in the order of the number of times they appear in a collagen protein, n, and charged amino acids are indicated in parentheses. The data are presented so that each column sums to 100%
| hydrogen bond | hydrogen bond | water bridge | water bridge | ||
|---|---|---|---|---|---|
| sidechain | n | donor | acceptor | donor | acceptor |
| Hyp | 328 | 11.2% | 7.0% | 21.2% | 11.1% |
| Arg (+) | 158 | 47.6% | 0.0% | 39.7% | 0.0% |
| Glu (−) | 145 | 0.0% | 54.1% | 0.0% | 45.6% |
| Ser | 131 | 12.2% | 3.5% | 8.5% | 4.9% |
| Lys (+) | 110 | 15.9% | 0.0% | 14.1% | 0.0% |
| Asp (−) | 90 | 0.0% | 26.7% | 0.0% | 23.5% |
| Gln | 83 | 5.9% | 5.8% | 8.0% | 8.9% |
| Thr | 64 | 3.1% | 0.7% | 3.3% | 2.5% |
| Asn | 48 | 1.8% | 1.5% | 4.1% | 2.4% |
| Tyr | 14 | 1.1% | 0.5% | 0.4% | 0.8% |
| His | 13 | 1.1% | 0.2% | 0.7% | 0.4% |