(b).
Intermolecular interactions across Alr dimer interfaces. BSA, buried surface area on monomer; MSA, overall monomer surface area; %BSA, total percentage of surface area that is buried at the dimer interface; NHB, number of hydrogen bonds; NSB, number of salt bridges; NMA, number of monomer amino-acid residues. Interactions were calculated using the CCP4 application Protein Interfaces, Surfaces and Assemblies (PISA; Krissinel & Henrick, 2007 ▶; Velankar et al., 2010 ▶; Krissinel, 2010 ▶).
| Protein | BSA (Å2) | MSA (Å2) | % BSA | NHB | NSB | NMA |
|---|---|---|---|---|---|---|
| CdAlrK271T | 3387 | 17409 | 19 | 31 | 21 | 383 |
| CdAlrPLP | 3210 | 17411 | 19 | 35 | 21 | 382 |
| CdAlrcycloserine | 2755 | 17435 | 16 | 30 | 17 | 375 |
| SlaAlr | 2741 | 16124 | 17 | 34 | 6 | 382 |
| GsAlr | 3023 | 16499 | 19 | 46 | 18 | 382 |
| MtbAlr | 1934 | 15314 | 13 | 16 | 1 | 366 |
| SaAlr | 2456 | 16494 | 15 | 28 | 14 | 356 |
| BaAlr | 3572 | 16496 | 21 | 45 | 10 | 382 |
| EcAlr | 2818 | 16116 | 18 | 40 | 29 | 381 |