Table 3: Average Distance Values (Standard Deviations in Parentheses) Between the Equivalent Cα Atoms for Different Amino Acid Types, After Optimal Superposition of 109 Non-Redundant Pairs of Proteins. Superpositions were made with CE, DALI, and PROFIT. When the PDB entry corresponding to a NMR structure contains several models, values were averaged. The values reported in the table are thus averages of averages.
| Residue Type |
CE mean(std) (Å) |
DALI mean(std) (Å) |
PROFIT mean(std) (Å) |
| Ala |
1.41(0.05) |
1.80(0.05) |
2.55(0.17) |
| Arg |
1.61(0.06) |
1.71(0.06) |
2.18(0.17) |
| Asn |
1.57(0.06) |
1.87(0.06) |
2.40(0.14) |
| Asp |
1.65(0.06) |
1.90(0.06) |
2.64(0.18) |
| Cys |
1.23(0.06) |
1.42(0.07) |
1.27(0.07) |
| Glu |
1.54(0.05) |
1.87(0.06) |
2.20(0.16) |
| Gln |
1.49(0.07) |
1.80(0.07) |
2.09(0.17) |
| Gly |
1.85(0.06) |
2.03(0.05) |
2.38(0.12) |
| His |
1.58(0.11) |
1.78(0.10) |
2.04(0.27) |
| Ile |
1.24(0.05) |
1.55(0.05) |
1.80(0.12) |
| Leu |
1.28(0.04) |
1.72(0.05) |
1.83(0.10) |
| Lys |
1.56(0.05) |
1.76(0.05) |
2.32(0.15) |
| Met |
1.55(0.10) |
1.87(0.11) |
2.14(0.25) |
| Phe |
1.23(0.06) |
1.56(0.06) |
1.79(0.16) |
| Pro |
1.70(0.09) |
2.00(0.08) |
2.50(0.20) |
| Ser |
1.66(0.06) |
1.80(0.05) |
2.37(0.14) |
| Thr |
1.48(0.06) |
1.74(0.06) |
1.96(0.11) |
| Trp |
1.26(0.11) |
1.76(0.11) |
2.78(0.42) |
| Tyr |
1.39(0.07) |
1.76(0.08) |
2.22(0.15) |
| Val |
1.18(0.04) |
1.54(0.05) |
1.77(0.11) |
| Overall |
1.48(0.07) |
1.76(0.07) |
2.16(0.17) |