How accurate and statistically robust are catalytic site predictions based on closeness centrality?

BMC Bioinformatics

Table 1 Comparison of accessibility to catalytic residue distributions.

Distribution¹	Average	Std. Dev.	Number residues	t-value²	p-value	Percent overlap³
Catalytic	0.19	0.03	844	---	---	---
Buried	0.18	0.05	6,310	2.0	1.5E-21	84.9
Intermediate	0.16	0.05	5,818	2.0	5.6E-58	70.4
Exposed	0.15	0.05	6,000	2.0	1.2E-101	58.7

¹ Accessibility is coarse-grained into three levels, which roughly correspond to the third most buried, middle third and third least buried (exposed) residues. ² Comparison of each accessibility-filtered PDF to the catalytic PDF; t-value and p-values are from a two-sample T-test comparing each of the accessibility PDFs to the catalytic residue PDF. ³ Percent overlap compares each accessibility level distribution to the catalytic residue distribution, which is calculated over the histogram of sampled data.

ISSN: 1471-2105