Results 1 to 10 of about 12,722 (195)

Planar Graphs as VPG-Graphs [PDF]

open access: diamondJournal of Graph Algorithms and Applications, 2013
Summary: A graph is \(B_k\)-VPG when it has an intersection representation by paths in a rectangular grid with at most \(k\) bends (turns). It is known that all planar graphs are \(B_3\)-VPG and this was conjectured to be tight. We disprove this conjecture by showing that all planar graphs are \(B_2\)-VPG.
Steven Chaplick, Torsten Ueckerdt
openalex   +4 more sources

Sobemovirus RNA linked to VPg over a threonine residue [PDF]

open access: bronzeFEBS Letters, 2011
Positive sense ssRNA virus genomes from several genera have a viral protein genome-linked (VPg) attached over a phosphodiester bond to the 5' end of the genome. The VPgs of Southern bean mosaic virus (SBMV) and Ryegrass mottle virus (RGMoV) were purified from virions and analyzed by mass spectrometry. SBMV VPg was determined to be linked to RNA through
Allan Olspert   +3 more
openalex   +3 more sources

B0-VPG Representation of AT-free Outerplanar Graphs

open access: diamondJournal of Graph Algorithms and Applications, 2023
A $k$-bend path is a non-self-intersecting polyline in the plane made of at most $k+1$ axis-parallel line segments. B$_{k}$-VPG is the class of graphs which can be represented as intersection graphs of $k$-bend paths in the same plane. In this paper, we show that all AT-free outerplanar graphs are B$_{0}$-VPG, i.e., intersection graphs of ...
Sparsh Jain   +2 more
openalex   +4 more sources

On some special classes of contact $B_0$-VPG graphs [PDF]

open access: green, 2018
Fil: Ries, Bernard. Universite de Fribourg (unifr);
Flavia Bonomo   +3 more
openalex   +5 more sources

Detection of a genome-linked protein (VPg) of hepatitis A virus and its comparison with other picornaviral VPgs [PDF]

open access: bronzeJournal of Virology, 1986
The nucleotide sequence corresponding to the P3 region of the hepatitis A virus (HAV) polyprotein genome was determined from cloned cDNA and translated into an amino acid sequence. Comparison of the amino acid sequences of the genome-linked proteins (VPgs) of other picornaviruses with the predicted amino acid sequence of HAV was used to locate the ...
Manfred Weitz   +4 more
openalex   +3 more sources

Genome-linked protein VPg of poliovirus is present as free VPg and VPg-pUpU in poliovirus-infected cells. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1983
VPg is a virus-encoded protein covalently attached to the 5' end of poliovirus virion RNA. We have used antibody prepared against chemically synthesized VPg to detect two forms of VPg in infected cells. Both forms were specifically immunoprecipitated from lysates of infected cells labeled with [3H]-leucine.
Crawford, Nigel M., Baltimore, David
openaire   +3 more sources

Two forms of VPg on poliovirus RNAs [PDF]

open access: yesJournal of Virology, 1981
The protein (VPg) linked to the 5' termini of poliovirus RNAs resolved into two species when subjected to non-equilibrium electrofocusing. The differently charged forms of VPg were not due to protein phosphorylation nor to variability of the number of phosphate residues associated with the nucleotide moiety remaining after RNase digestion of the ...
O C, Richards, T D, Hey, E, Ehrenfeld
openaire   +2 more sources

EPG-representations with small grid-size [PDF]

open access: yes, 2017
In an EPG-representation of a graph $G$ each vertex is represented by a path in the rectangular grid, and $(v,w)$ is an edge in $G$ if and only if the paths representing $v$ an $w$ share a grid-edge. Requiring paths representing edges to be x-monotone or,
A Asinowski   +11 more
core   +2 more sources

The central and C-terminal domains of VPg of Clover yellow vein virus are important for VPg–HCPro and VPg–VPg interactions

open access: yesJournal of General Virology, 2003
Interactions between the major proteins of Clover yellow vein virus (ClYVV) were investigated using a GAL4 transcription activator-based yeast two-hybrid system (YTHS). Self-interactions manifested by VPg and HCPro and an interaction between NIb and NIaPro were observed in ClYVV. In addition, a strong HCPro–VPg interaction was detected by both YTHS and
Yambao, Ma. Leonora M.   +3 more
openaire   +3 more sources

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