Measuring Protein Half-life in Arabidopsis thaliana
Authors: Hongqing Guo and
Yanhai Yin,
date: 08/05/2019,
view: 1781,
Q&A: 0
[Abstract] Post-translational modifications play important roles in controlling protein function and can lead to altered protein stability. Protein stability can be determined after treatment with the protein synthesis inhibitor Cycloheximide. Cycloheximide is a translational inhibitor that inhibits protein synthesis via cytoplasmic ribosomes. Here we ...
Extraction and Purification of Laccases from Rice Stems
Authors: Chenna Swetha and
P. V. Shivaprasad,
date: 04/05/2019,
view: 2664,
Q&A: 0
[Abstract] Laccases are found in cell walls of plants in very low amounts. This protocol provides an efficient method to purify laccases from rice stems. The method involves three steps: 1) Isolation of total protein from rice stems using buffers with high salt concentration to extract protein from cell walls; 2) Purification of laccases using concanavalin-A ...
Separation of Thylakoid Protein Complexes with Two-dimensional Native-PAGE
[Abstract] The hierarchical composition and interactions of the labile thylakoid protein complexes can be assessed by sequential 2D-native gel-electrophoresis system. Mild non-ionic detergent digitonin is used to solubilize labile protein super-and megacomplexes, which are then separated with first-dimension blue native polyacrylamide gel electrophoresis ...
Boron Uptake Assay in Xenopus laevis Oocytes
[Abstract] Boron (B) is essential for plant growth and taken up by plant roots as boric acid. Under B limitation, B uptake and translocation in plants are dependent on the boric acid channels located in the plasma membrane. Xenopus leavis oocyte is a reliable heterologous expression system to characterize transport activities of boric acid channels ...
Ribosomal RNA N-glycosylase Activity Assay of Ribosome-inactivating Proteins
[Abstract] Ribosome-inactivating proteins (RIPs) are enzymes that irreversibly inactivate ribosomes as a consequence of their N-glycosylase (EC 3.2.2.22) activity. The enzyme cleaves the N-glycosidic bond between the adenine No. 4324 from the 28S rRNA and its ribose in rat ribosomes (or the equivalent adenine in sensitive ribosomes from other organisms). ...
Microplate Assay to Study Carboxypeptidase A Inhibition in Andean Potatoes
Authors: Mariana Edith Tellechea,
Javier Garcia-Pardo,
Juliana Cotabarren,
Daniela Lufrano,
Laura Bakas,
Francesc Xavier Avilés,
Walter David Obregon,
Julia Lorenzo and
Sebastián Tanco,
date: 12/05/2016,
view: 6582,
Q&A: 0
[Abstract] Metallocarboxypeptidases (MCP) are zinc-dependent exopeptidases that catalyze the hydrolysis of C-terminal amide bonds in proteins and peptides. They are involved in a wide range of physiological processes and have recently emerged as relevant drug targets in biomedicine (Arolas et al., 2007). In this context, the study and discovery of ...