paperKB
coga / coga-kb
Processing
Help
Sign in

Chunk #38 — Discussion

Source
Predicting the functional, molecular, and phenotypic consequences of amino acid substitutions using hidden Markov models.
Embedded
yes

Text

The performance of FATHMM was compared to the performances of alternative computational prediction methods previously reported in two published reviews [Hicks et al., 2011; Thusberg et al., 2011]. Furthermore, we performed our own independent benchmark comparing the performance of FATHMM against the performance of other computational prediction methods. In two benchmarks (VariBench/SwissVar), the performance of our unweighted method is comparable to another sequence-based method: SIFT [Ng and Henikoff, 2001], and to a sequence/structure-based method: PolyPhen-1 [Ramensky et al., 2002]. This performance reaffirms the ability of FATHMM to recognize important structural and/or evolutionary constraints (via priors) modeled within manually curated HMMs representing the alignment of conserved protein domains: SUPERFAMILY [Gough et al., 2001] and Pfam [Sonnhammer et al., 1997]. A detailed analysis of four cancer-associated genes (Hicks; BRCA1, MSH2, MLH1, and TP53) shows Align-GVGD [Tavtigian et al., 2006] to be the best performing prediction method. However, this can be attributed to the manually curated (gene-specific) sequence alignments employed in the prediction method. On average, the performance of our unweighted method in this benchmark is comparable to SIFT.