Table 2. Structural comparison of S. equorum MnSOD with its homologues.
| S. equorum | B. subtilis | E. coli | D. radiodurans | |
|---|---|---|---|---|
| PDB code | 5x2j | 2rcv | 1vew | 2ce4 |
| Resolution (Å) | 1.4 | 1.8 | 2.1 | 2.2 |
| Structural alignment | ||||
| R.m.s.d. (Å) | — | 0.7859 | 0.9259 | 0.7970 |
| No. of residues aligned | 198 | 197 | 196 | 196 |
| Quality normalized | — | 0.1147 | 0.2149 | 0.4409 |
| Protein volume calculation | ||||
| Molecular volume (Å3) | 26795.5 | 26517.1 | 27798.5 | 27212.5 |
| Packing density | 0.752 | 0.747 | 0.739 | 0.746 |
| Void volume (Å3) | 6656.5 | 5717.9 | 7268.8 | 6914.4 |
| van der Waals volume (Å3) | 20139.0 | 19799 | 20529.7 | 20298.1 |
| PISA calculation | ||||
| Surface area (Å2) | 17590 | 17353 | 17680 | 17140 |
| Buried area (Å2) | 1770 | 1710 | 1715 | 1810 |
| Buried/surface area (%) | 10.1 | 9.9 | 9.7 | 10.6 |