• Product NameRas-GRF1 (Phospho-Ser916) Conjugated Antibody
• Host SpeciesRabbit
• ClonalityPolyclonal
• Species ReactivityHu Ms
• SpecificityThe antibody detects endogenous levels of Ras-GRF1 only when phosphorylated at serine 916.
• Immunogen DescriptionPeptide sequence around phosphorylation site of Serine 916(R-M-S(p)-L-A) derived from Mouse Ras-GRF1.
• ConjugatesBiotin AF350 AF405 AF488 AF555 AF594 AF647 AF680 AF750
• Excitation EmissionAF350: 346nm/442nm
  AF405: 401nm/421nm
  AF488: 493nm/519nm
  AF555: 555nm/565nm
  AF594: 591nm/614nm
  AF647: 651nm/667nm
  AF680: 679nm/702nm
  AF750: 749nm/775nm
• Alternative Names    CDC25;GNRP; GRF1;RASGRF1
• Accession No. Swiss-Prot#:P27671
  NCBI Gene ID:19417
  NCBI mRNA#:NM_002891.4.
  NCBI Protein#:NP_002882.3.
• UniprotP27671
• Gene ID19417;
• Calculated MW 145
• Formulation 0.01M Sodium Phosphate, 0.25M NaCl, pH 7.6, 5mg/ml Bovine Serum Albumin, 0.02% Sodium Azide
• Storage Store at 4˚C in dark for 6 months

• Suggested Dilution:
  AF350 conjugated: most applications: 1: 50 - 1: 250
  AF405 conjugated: most applications: 1: 50 - 1: 250
  AF488 conjugated: most applications: 1: 50 - 1: 250
  AF555 conjugated: most applications: 1: 50 - 1: 250
  AF594 conjugated: most applications: 1: 50 - 1: 250
  AF647 conjugated: most applications: 1: 50 - 1: 250
  AF680 conjugated: most applications: 1: 50 - 1: 250
  AF750 conjugated: most applications: 1: 50 - 1: 250
  Biotin conjugated: working with enzyme-conjugated streptavidin, most applications: 1: 50 - 1: 1,000

• Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatogramphy using non-phosphopeptide.

Ras activity is regulated by GAP (GTPase activating proteins) and GEFs (guanine nucleotide exchange factors). Ras-GRF1 (also known as CDC25Mm) is neuronal RasGEF and is regulated by heterotrimeric G proteins and calcium influx . Binding to calmodulin and phosphorylation stimulate Ras-GRF1 activity. Multiple PKA phosphorylation sites on Ras-GRF have been identified. Phosphorylation on the two major sites, Ser54 and Ser822, inhibits Ras-GRF activity. Carbachol (a muscarinic agonist)-induced phosphorylation on Ser916 is essential but not sufficient for maximal Ras-GRF activity.

• Flow Cytometry (FCM) General Protocol
• Immunofluorescence(IC)
• Immunohistochemistry(Polymer)
• Western Blotting