| Literature DB >> 31564200 |
Ikenna O Okekeogbu1,2, Uma K Aryal3,4, Susana M González Fernández-Niño5, Bryan W Penning6, Joshua L Heazlewood5, Maureen C McCann2,7, Nicholas C Carpita1,2,7.
Abstract
The Endoplasmic Reticulum (ER)-Golgi apparatus of plants is the site of synthesis of non-cellulosic polysaccharides that then traffic to the cell wall. A two-step protocol of flotation centrifugation followed by free-flow electrophoresis (FFE) resolved ER and Golgi proteins into three profiles: an ER-rich fraction, two Golgi-rich fractions, and an intermediate fraction enriched in cellulose synthases. Nearly three dozen Rab-like proteins of eight different subgroups were distributed differentially in ER- vs. Golgi-rich fractions, whereas seven 14-3-3 proteins co-fractionated with cellulose synthases in the intermediate fraction. FFE offers a powerful means to classify resident and transient proteins in cell-free assays of cellular location.Entities:
Keywords: 14-3-3 proteins; Calcium-dependent proteins; Cellulose synthase (CesA); Endoplasmic reticulum (ER); Golgi; Maize (Zea mays); Small GTPase Rab proteins
Year: 2019 PMID: 31564200 PMCID: PMC6866702 DOI: 10.1080/15592324.2019.1672513
Source DB: PubMed Journal: Plant Signal Behav ISSN: 1559-2316