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  • Title: Variation of high-molecular-weight secalin subunit composition in Rye (Secale cereale L.) inbred lines.
    Author: Salmanowicz BP, Langner M, Kubicka-Matusiewicz H.
    Journal: J Agric Food Chem; 2014 Oct 29; 62(43):10535-41. PubMed ID: 25307487.
    Abstract:
    In this study, identification and characterization of the rye HMW secalin subunit (HMW-SS) composition in 68 inbred rye (Secale cereale L.) lines was performed by capillary zone electrophoresis (CZE). The HMW-SS were separated in an uncoated fused-silica capillary using an isoelectric iminodiacetic buffer in combination with poly(ethylene oxide), lauryl sulfobetaine, and acetonitrile as the separation buffer. The separations of the nonalkylated HMW-SS provided very good resolution and high reproducibility. Generally, the x-type rye HMW-SS were more abundant and have longer migration times than the y-type subunits. Both types of rye HMW-SS were separated into the major protein peak and one or two minor peaks. In total, seven x-type HMW-SS, five of which were newly identified subunits, and six y-type subunits, four of which were new, were distinguished on the basis of their CZE migration times. The migration order of the rye HMW-SS using CZE differed considerably from the relative electrophoretic mobilities in the SDS-PAGE gels.
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