The data obtained reveal the extent of structural diversity in the general populace and represent the first such catalogue of structural protein modifications. Gender correlations were observed for two protein modifications. Some variants, such as those resulting from oxidation and single amino acid terminal truncations, were observed in the majority of individuals, whereas point mutations and extensive sequence truncations were detected in only a few individuals. Six predefined positions within the work envelope accommodate standard microplate or reservoir. The screening of 1,000 individuals from four geographical regions in the United States for five plasma proteins revealed the existence of 27 protein modifications. The Beckman Multimek is a 96-channel robotic pipetting station. Browse Beckman Coulter Multimek 96 Channel Automated Pipettor W/software owners manuals, user guides, instructional help documents & operating information. Here we show that human proteins exhibit a wide range of modifications present at various frequencies in the general population. Agilent- Clear tips for all Agilent BravoBeckman- Clear tips for all Beckman: Biomek FX per NX, Multimek AP96 und Biomek 3000- Conductive tips for all. Although a large number of protein modifications have been discovered thus far, their incidence among the general population has not been determined. Structural modifications can also be induced during the life cycle of a protein and can lead to impaired functioning and pathological conditions. Genetic variations and posttranslational modifications give rise to structural diversity in fully expressed human proteins.