The complete genome sequence of bacteriophage EC1-UPM was analysed and compared with other closely related N4-like phage groups to assess their genetic similarities and differences.\n\nResults: Bacteriophage EC1-UPM displays a very similar codon usage profile with its host and does not contain any tRNA gene. Comparative genomics analysis reveals close resemblance of bacteriophage EC1-UPM to three N4-like bacteriophages namely vB_EcoP_G7C, IME11 and KBNP21 with a total of 44 protein coding genes shared at 70% identity threshold. The genomic region coding for

the tail fiber protein was found to be unique in bacteriophage EC1-UPM. Further annotation of the tail fiber protein using HHpred, a highly sensitive homology detection tool, reveals the presence of protein structure homologous to various polysaccharide processing proteins in its C-terminus. Leveraging on the availability of multiple N4-like bacteriophage genome sequences, BAY 73-4506 concentration AG-120 the core genes of N4-like bacteriophages

were identified and used to perform a multilocus phylogenetic analysis which enabled the construction of a phylogenetic tree with higher confidence than phylogenetic trees based on single genes.\n\nConclusion: We report for the first time the complete genome sequence of a N4-like bacteriophage which is lytic against avian pathogenic Escherichia coli O78:K80. A novel 928 amino acid residues tail fiber protein was identified in EC1-UPM which may be useful to further the understanding of phage-host specificity. Multilocus phylogenetic analysis using core genes of sequenced N4-like phages showed that the evolutionary relationship correlated well with the pattern of host specificity.”
“Background Tissue factor (TF) encryption CDK and cancer plays an important role in regulating TF coagulant activity. Potential differences in experimental cell model systems and strategies hampered

our understanding of the TF encryption mechanisms.\n\nObjective To characterize the procoagulant activity status of TF in different cell types, and to determine whether increased TF procoagulant activity following the activation stems from transformation of the cryptic TF to the active form.\n\nMethods Simultaneous kinetic analyses of TF-FVIIa activation of FX and FVIIa binding to cell surface TF were performed under identical experimental conditions in fibroblast (WI-38), cancer cell (MDA-231), endothelial cell (HUVEC) and monocytic cell (THP-1) model systems. These data were then utilized to estimate TF coagulant-specific activity and percentages of active and cryptic TF present in these cell types.\n\nResults MDA-231 and WI-38 cells express 10 to 100 times more TF on their cell surfaces compared with perturbed HUVEC and THP-1 cells. TF-specific activity on cell surfaces of MDA-231, WI-38 and THP-1 cells was very similar. Nearly 80-90% of the TF in MDA-231, WI-38 and THP-1 cells was cryptic.