Table 5. Observed frequency distributions of (A) hydrogen bond contacts and (B) van der Waals contacts between the 20 amino acid residues and the components of RNA.
| |
|
A |
G |
U |
C |
Sugar |
Phosphate |
Total |
| A | ALA | 1 (0.6) | 1 (0.6) | 0 (0.5) | 0 (0.5) | 0 (2.2) | 0 (3.7) | 2 (8.1) |
| ARG | 2 (0.6) | 3 (0.6) | 4 (0.5) | 2 (0.5) | 2 (2.2) | 23 (3.7) | 36 (8.1) | |
| ASN | 1 (0.9) | 7 (0.8) | 6 (0.7) | 3 (0.8) | 2 (3.1) | 3 (5.2) | 22 (11.5) | |
| ASP | 0 (1.1) | 1 (1.0) | 2 (0.8) | 2 (1.0) | 2 (3.9) | 1 (6.5) | 8 (14.4) | |
| CYS | 0 (0.1) | 0 (0.1) | 0 (0.1) | 0 (0.1) | 0 (0.3) | 0 (0.5) | 0 (1.1) | |
| GLN | 0 (0.5) | 0 (0.5) | 1 (0.5) | 2 (0.5) | 1 (2.0) | 3 (3.3) | 7 (7.3) | |
| GLU | 0 (0.9) | 5 (0.8) | 1 (0.8) | 0 (0.8) | 0 (3.4) | 0 (5.6) | 6 (12.4) | |
| GLY | 0 (0.8) | 4 (0.7) | 0 (0.7) | 2 (0.7) | 0 (2.8) | 1 (4.7) | 7 (10.3) | |
| HIS | 0 (0.2) | 0 (0.2) | 0 (0.2) | 1 (0.2) | 2 (0.8) | 0 (1.3) | 3 (3.0) | |
| ILE | 0 (0.2) | 0 (0.2) | 0 (0.2) | 0 (0.2) | 1 (0.7) | 0 (1.2) | 1 (2.6) | |
| LEU | 0 (0.4) | 0 (0.3) | 0 (0.3) | 1 (0.3) | 0 (1.4) | 1 (2.3) | 2 (5.0) | |
| LYS | 0 (1.1) | 2 (1.0) | 2 (0.9) | 1 (1.0) | 1 (3.9) | 3 (6.4) | 9 (14.1) | |
| MET | 0 (0.1) | 0 (0.1) | 0 (0.1) | 0 (0.1) | 1 (0.4) | 0 (0.7) | 1 (1.5) | |
| PHE | 0 (0.2) | 1 (0.2) | 0 (0.1) | 0 (0.2) | 0 (0.6) | 0 (1.1) | 1 (2.3) | |
| PRO | 0 (0.9) | 1 (0.8) | 0 (0.7) | 0 (0.8) | 0 (3.1) | 0 (5.2) | 1 (11.4) | |
| SER | 3 (0.7) | 0 (0.6) | 0 (0.6) | 1 (0.6) | 0 (2.6) | 3 (4.2) | 7 (9.3) | |
| THR | 4 (0.6) | 0 (0.5) | 0 (0.5) | 0 (0.5) | 4 (2.2) | 5 (3.6) | 13 (8.0) | |
| TRP | 0 (0.1) | 1 (0.1) | 0 (0.1) | 0 (0.1) | 0 (0.4) | 0 (0.6) | 1 (1.4) | |
| TYR | 0 (0.3) | 1 (0.3) | 0 (0.3) | 1 (0.3) | 6 (1.1) | 4 (1.9) | 12 (4.2) | |
| VAL | 0 (0.3) | 0 (0.3) | 0 (0.3) | 0 (0.3) | 1 (1.1) | 0 (1.8) | 1 (4.0) | |
| Total | 11 (10.5) | 27 (9.6) | 16 (8.8) | 16 (9.4) | 23 (38.3) | 47 (63.3) | 140 (140) | |
| B | ALA | 13 (4.9) | 7 (4.9) | 1 (4.1) | 3 (4.0) | 12 (23.3) | 1 (37.7) | 37 (79.0) |
| ARG | 32 (8.6) | 19 (8.5) | 24 (7.1) | 13 (6.9) | 44 (40.5) | 93 (65.5) | 225 (137.1) | |
| ASN | 5 (6.6) | 25 (6.6) | 58 (5.5) | 10 (5.3) | 16 (31.2) | 31 (50.4) | 145 (105.6) | |
| ASP | 2 (8.5) | 6 (8.5) | 6 (7.1) | 15 (6.9) | 11 (40.3) | 4 (65.1) | 44 (136.3) | |
| CYS | 3 (0.5) | 9 (0.5) | 0 (0.4) | 0 (0.4) | 0 (2.5) | 0 (4.0) | 12 (8.3) | |
| GLN | 3 (5.9) | 32 (5.8) | 9 (4.9) | 7 (4.8) | 33 (27.8) | 16 (44.9) | 100 (94.0) | |
| GLU | 0 (10.0) | 16 (9.9) | 23 (8.3) | 1 (8.1) | 20 (47.1) | 1 (76.1) | 61 (159.4) | |
| GLY | 0 (4.8) | 31 (4.7) | 2 (3.9) | 12 (3.8) | 9 (22.5) | 13 (36.3) | 67 (76.1) | |
| HIS | 1 (2.7) | 0 (2.7) | 0 (2.2) | 12 (2.2) | 2 (12.7) | 0 (20.6) | 15 (43.1) | |
| ILE | 0 (2.4) | 23 (2.4) | 3 (2.0) | 2 (1.9) | 16 (11.4) | 3 (18.4) | 47 (38.5) | |
| LEU | 16 (4.4) | 11 (4.4) | 2 (3.7) | 7 (3.6) | 16 (21.0) | 8 (34.0) | 60 (71.2) | |
| LYS | 3 (13.1) | 14 (13.0) | 7 (10.9) | 11 (10.6) | 19 (62.0) | 38 (100.2) | 92 (209.9) | |
| MET | 2 (1.4) | 11 (1.4) | 0 (1.2) | 3 (1.2) | 20 (6.7) | 6 (10.9) | 42 (22.8) | |
| PHE | 60 (2.3) | 18 (2.2) | 46 (1.9) | 1 (1.8) | 37 (10.7) | 3 (17.3) | 165 (36.2) | |
| PRO | 6 (5.9) | 4 (5.8) | 2 (4.9) | 10 (4.7) | 11 (27.7) | 1 (44.8) | 34 (93.8) | |
| SER | 26 (5.7) | 11 (5.7) | 0 (4.8) | 11 (4.6) | 13 (27.1) | 24 (43.8) | 85 (91.7) | |
| THR | 28 (6.0) | 3 (6.0) | 7 (5.0) | 5 (4.9) | 21 (28.3) | 37 (45.8) | 101 (96.0) | |
| TRP | 0 (1.4) | 52 (1.4) | 0 (1.1) | 0 (1.1) | 0 (6.5) | 0 (10.4) | 52 (21.9) | |
| TYR | 23 (3.5) | 28 (3.5) | 33 (2.9) | 49 (2.9) | 48 (16.7) | 24 (27.0) | 205 (56.5) | |
| VAL | 4 (3.4) | 5 (3.4) | 10 (2.8) | 0 (2.8) | 19 (16.2) | 5 (26.1) | 43 (54.7) | |
| Total | 227 (102.0) | 325 (101.3) | 233 (84.7) | 172 (82.6) | 367 (482.1) | 308 (779.3) | 1632 (1632) |
The numbers in parentheses are the expected values derived by assessing the solvent accessibility of each group.
The pairs shown in bold are those in which the observed value is five times the expected value (individual table entry) or two times the expected value (row or column total entry). These values have been used to create a composite table (Table 7).