Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2007-7-6
pubmed:abstractText
Following stimulation of NRK49F rat kidney fibroblast cells with epidermal growth factor, possible preemptive cross-talk between arginine methylation and serine and tyrosine phosphorylation was observed for Rho guanidine nucleotide dissociation inhibitor 1 (RhoGDI-1). Five dimethylation sites (Lys50, Lys52, Arg111, Arg152, Arg180) and two new phosphorylation sites (Tyr144, Ser148) were identified for RhoGDI-1. All presently known phosphorylation sites for RhoGDI-1 lie within the 10 residues immediately prior to the 3 sites for arginine dimethylation, and these dimethylation/phosphorylation modules may constitute functional switches. Consideration of structural data and other literature for RhoGDI-1 suggests that methylation and phosphorylation cooperatively affect formation of complexes with different Rho/Rac family proteins and that methylation may be crucial in partitioning of RhoGDI-1 between different functional roles. On the basis of results presented here, it can be implied that unidentified arginine methyltransferases may exist and that arginine methylation may have a greater role in cellular signaling processes than is currently recognized. The combined use of SILAC labeling of arginine (SILAC = stable isotope labeling by amino acids in cell culture), immobilized metal affinity chromatography based phosphoprotein enrichment, and mass spectrometry is clearly a useful method for this investigation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1535-3893
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2623-30
pubmed:meshHeading
pubmed-meshheading:17506542-Amino Acid Sequence, pubmed-meshheading:17506542-Amino Acids, pubmed-meshheading:17506542-Animals, pubmed-meshheading:17506542-Arginine, pubmed-meshheading:17506542-Cell Line, pubmed-meshheading:17506542-Chromatography, Affinity, pubmed-meshheading:17506542-Epidermal Growth Factor, pubmed-meshheading:17506542-Fibroblasts, pubmed-meshheading:17506542-Guanine Nucleotide Dissociation Inhibitors, pubmed-meshheading:17506542-Isotope Labeling, pubmed-meshheading:17506542-Methylation, pubmed-meshheading:17506542-Molecular Sequence Data, pubmed-meshheading:17506542-Phosphopeptides, pubmed-meshheading:17506542-Phosphoproteins, pubmed-meshheading:17506542-Phosphorylation, pubmed-meshheading:17506542-Protein Conformation, pubmed-meshheading:17506542-Protein Processing, Post-Translational, pubmed-meshheading:17506542-Proteomics, pubmed-meshheading:17506542-Rats, pubmed-meshheading:17506542-Spectrometry, Mass, Matrix-Assisted Laser..., pubmed-meshheading:17506542-cdc42 GTP-Binding Protein
pubmed:year
2007
pubmed:articleTitle
Proteomics study reveals cross-talk between Rho guanidine nucleotide dissociation inhibitor 1 post-translational modifications in epidermal growth factor stimulated fibroblasts.
pubmed:affiliation
Department of Medicine, University College London, 5 University Street, London.
pubmed:publicationType
Journal Article