1995
Mutagenesis of the COOH-terminal Region of Bacteriophage T4 regA Protein (∗)
O'Malley S, Sattar A, Williams K, Spicer E. Mutagenesis of the COOH-terminal Region of Bacteriophage T4 regA Protein (∗). Journal Of Biological Chemistry 1995, 270: 5107-5114. PMID: 7890619, DOI: 10.1074/jbc.270.10.5107.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceBacterial ProteinsBacteriophage T4Base SequenceBinding SitesChymotrypsinCircular DichroismCloning, MolecularDNA PrimersGenes, ViralKineticsMolecular Sequence DataMutagenesis, Site-DirectedPeptide FragmentsPoly UProtein ConformationRecombinant ProteinsSequence DeletionTranscription FactorsConceptsBacteriophage T4 regA proteinRegA proteinPhe-106Deletion mutantsWild-type regA proteinAmino acid substitutionsCOOH-terminal regionSpecific RNA ligandsT4 proteinsTranslational repressorRNA ligandsPartial proteolysisAcid substitutionsMutantsAmino acidsProteinRNAMajor siteNucleic acidsProteolysisOverall free energyChymotryptic cleavageSpecific targetsDomain structureAffinity
1992
Identification of amino acid residues at the interface of a bacteriophage T4 regA protein-nucleic acid complex.
Webster K, Keill S, Konigsberg W, Williams K, Spicer E. Identification of amino acid residues at the interface of a bacteriophage T4 regA protein-nucleic acid complex. Journal Of Biological Chemistry 1992, 267: 26097-26103. PMID: 1464621, DOI: 10.1016/s0021-9258(18)35722-3.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceBacterial ProteinsBacteriophage T4Base SequenceBinding SitesChromatography, High Pressure LiquidCross-Linking ReagentsMolecular Sequence DataOligoribonucleotidesPeptide FragmentsPlasmidsPromoter Regions, GeneticRNA, MessengerRNA, ViralSequence Homology, Amino AcidTrypsinUltraviolet RaysConceptsCross-linked peptidesProtein-nucleic acid complexesAnion-exchange high-performance liquid chromatographyNucleic acidsIntact proteinHigh-performance liquid chromatographyCross-linked complexGas-phase sequencingPerformance liquid chromatographyAcid complexesExchange high performance liquid chromatographyLiquid chromatographyChemical cleavageBacteriophage T4 regA proteinNucleic acid bindingTryptic peptidesComplexesUltraviolet lightCNBr peptidesPeptidesCN6Amino acid residuesMeasurable affinityAcid bindingAcid
1986
1H NMR (500 MHz) identification of aromatic residues of gene 32 protein involved in DNA binding by use of protein containing perdeuterated aromatic residues and by site-directed mutagenesis.
Prigodich R, Shamoo Y, Williams K, Chase J, Konigsberg W, Coleman J. 1H NMR (500 MHz) identification of aromatic residues of gene 32 protein involved in DNA binding by use of protein containing perdeuterated aromatic residues and by site-directed mutagenesis. Biochemistry 1986, 25: 3666-72. PMID: 3013293, DOI: 10.1021/bi00360a029.Peer-Reviewed Original ResearchConceptsGene 32 proteinTyr-115Aromatic residuesPhe residueDNA binding surfaceAmino acid sequenceSite-directed mutationsSite-directed mutagenesisComplex formationAcid sequenceBinding surfaceUse of proteinsTyr residuesNMR difference spectraTyr-73ProteinResiduesPhenylalanyl residuesDNANMR identificationTyrMutagenesisMutationsTyrosylDifference spectra