2002
Enzymatic Digestion of Proteins in Solution and in SDS Polyacrylamide Gels
Stone K, Williams K. Enzymatic Digestion of Proteins in Solution and in SDS Polyacrylamide Gels. 2002, 0: 511-521. DOI: 10.1385/1-59259-169-8:511.Peer-Reviewed Original ResearchPolyacrylamide gel matrixFree NH2 terminusPeptide fractionationCleavage procedureGel matrixFinal purificationChemical cleavagePolyacrylamide gelsEdman degradationMost eukaryotic proteinsSDS-polyacrylamide gelsPVDFGelSpecific proteasesPurificationSDS-PAGECleavageNH2 terminusFractionationPartial amino acid sequenceDegradation
1992
Elution and Internal Amino Acid Sequencing of PVDF-Blotted Proteins
Stone K, LoPresti M, Williams K, Mcnulty D, Crawford J, DeAngelis R. Elution and Internal Amino Acid Sequencing of PVDF-Blotted Proteins. 1992, 23-34. DOI: 10.1016/b978-0-12-058756-8.50008-0.Peer-Reviewed Original ResearchPVDF membranePolyacrylamide gel electrophoresisPolyvinylidene difluoride membraneTryptic digestMolecular weightReversed-phase HPLCSDS-polyacrylamide gel electrophoresisHigh yieldsTotal purificationDifluoride membraneEnzymatic cleavageTryptic peptidesPhase HPLCCyanogen bromide peptidesCyanogen bromide cleavageCleavageInternal amino acid sequencingGel electrophoresisPeptidesAmino acid sequencingMembraneElutionPurification
1977
Purification and some properties of Escherichia coli tRNA nucleotidyltransferase.
Schofield P, Williams K. Purification and some properties of Escherichia coli tRNA nucleotidyltransferase. Journal Of Biological Chemistry 1977, 252: 5584-5588. PMID: 328503, DOI: 10.1016/s0021-9258(19)63390-9.Peer-Reviewed Original ResearchConceptsTransition metal chelating agentsMetal chelating agentsSodium dodecyl sulfate gel electrophoresisDodecyl sulfate gel electrophoresisSulfate gel electrophoresisTurnover numberChelating agentOverall yieldMolecular weightPure enzymeIsoelectric pointKey stepIdentical isoelectric pointsSephadex chromatographyCrude extractPurificationAffinity columnGel electrophoresisEscherichia coli tRNA nucleotidyltransferaseSpecific activityAssay conditionsChromatographyEnzymeTRNA nucleotidyltransferaseOptimal assay conditions