Each sequence is scanned for patterns, specified as strings, and alternative amino acids for certain positions, specified as triplets comprising position, alternative amino acid and score.
The deduction of accurate motif boundaries is not straightforward, as this region also comprises positions that make only minor contributions to substrate recognition by PKA.
Specifically, this literature subset comprised: position statements or academic debate (n = 13) [ 37, 38, 44- 54]; comparative reports of international quality definitions (n = 3) [ 55- 57]; reflections on what health quality could mean (n = 2) [ 58, 59]; letters to the Editor (n = 2) [ 9, 60]; and one presidential address [ 1].
An error model of the SINS is derived and the state vector comprises attitude, velocity, position and sensor errors.
In addition, fourteen U6 previously published complete mtDNA genomes using P[ 6] were re-analyzed and where necessary, some fragments comprising dubious positions, re-sequenced.
We next proceeded towards revealing the biological role of the above conserved stretch comprising codon positions 82 90 of pol by mutagenesis experiments in molecular clones of HIV-1.
In the maximum likelihood tree (Additional file 3) calculated based on the nucleotide alignment derived from the amino acid alignment and edited with ALISCORE [ 53, 54] comprising 12,648 positions of 49 taxa using the GTR model implemented in RAxML, a sister group relationship between brachiopods and annelids is comparatively well-supported (86% bootstrap value).
From the resulting alignment of 2172 nt, a high coverage region comprising 1576 positions was extracted and analysed in BEAST version 1.7.4 [ 2– 4, 26] with similar parameter settings except for the substitution model [HKY with rate variation across sites following a discrete gamma distribution (G) with four rate categories].
In the Bayesian inference tree based on the mitochondrial amino acid data set edited with ALISCORE [ 53, 54] comprising 2,729 positions of 49 taxa calculated with the CAT model implemented in PhyloBayes, the long-branch group is broken up and Lophotrochozoa including Platyhelminthes form a well-supported monophylum (posterior probability 0.96).
