Skip to main content
. 2010 Apr;26(4):495–500. doi: 10.1089/aid.2009.0257

Table 4.

SLACa Predicted Sites of Lymphoid-Specific Negative Selection

Codon (NL4-3 residue #) Patient p Valueb Codon description
10 (10) UK6 0.0257 NH2-terminal T cell epitope
14 (14) MACS2 0.0167 NH2-terminal T cell epitopes
67 (62) MACS2 0.0041 MHC-I downmodulation
68 (63) MACS1 0.0904 MHC-I downmodulation
69 (insertion at 63) MACS3 0.0709 MHC-I downmodulation
a

Single Likelihood Ancestor Counting (HyPhy software package) was used to reconstruct ancestral sequences at each node of a lymphoid-only phylogenetic tree. Substitutions are calculated at each branch and terminal node. Wherever a variation occurs, the dS and dN were calculated.

b

p Values are based on a two-tailed binomial distribution that measures how likely the observed proportion of synonymous substitutions differs from the expected value derived from a global dN/dS ratio fitted to reconstructed ancestral states at each node of patient-specific maximum likelihood phylogentic trees.