Molecular weights of high molecular weight subunits of glutenin determined by mass spectrometry

Dominic R. Hickman*, Peter Roepstorff, Peter R. Shewry, Arthur S. Tatham

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

51 Dyfyniadau (Scopus)

Crynodeb

High molecular weight (HMW) subunits of glutenin, corresponding to those for which full length gene sequences are available, were purified and their Mrs determined by mass spectrometry [matrix-assisted laser desorption ionisation (MALDI)]. In general, the Mrs determined were within the experimental error of the techniques employed [at the mass range of the high molecular weight (hmw) prolamins, error ∼ 500 Da]. Two subunits, 1 Dx2 and 1By9, however, showed Mrs approximately 900 Da higher and 1700 Da lower, respectively, than expected from their gene sequences. These data confirm that the HMW subunits are not extensively glycosylated and also demonstrate the utility of mass spectrometry for determining the Mrs of prolamins.

Iaith wreiddiolSaesneg
Tudalennau (o-i)99-103
Nifer y tudalennau5
CyfnodolynJournal of Cereal Science
Cyfrol22
Rhif cyhoeddi2
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 1995
Cyhoeddwyd yn allanolIe

Dyfynnu hyn