The first intrinsically fluorescent analog of geranylgeraniol, (2E,6E,8E,10E,12E,14E)-geranylgeraniol (all-trans-DeltaDeltaGGOH.1) has been synthesized stereoselectively and shown to substitute for the geranylgeranyl (GG) moiety in prenyl transferase reactions and in protein-ligand binding assays. All-trans-DeltaDeltaGGOH 1 showed blue fluorescence in methanol, with lambdaex = 310 nm and lambdaem = 410 nm (epsilon310 = 2.4 x 104 M-1 cm-1), but was only weakly fluorescent in aqueous solution. The prenyl transferase efficiency for DeltaDeltaGGPP 2 as a substrate for yeast protein geranylgeranyl transferase (PGGTase-I) was 60% relative to that for GGPP. The binding of DeltaDeltaGG-AcCysMe 3 to the recombinant Rho GTPase dissociation inhibitor (RhoGDI) had a KD of 15.1 +/- 1.2 muM, 6-fold lower than the affinity of GG-AcCysMe. Thus, the DeltaDeltaGG moiety is a novel fluorophore suitable for studying the interaction and subcellular localization of prenylated small GTPase proteins in signaling complexes.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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| Evidence ID | Analyze ID | File | Description |
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