scholarly journals Wheat Germ Agglutinin (WGA)-SDS-PAGE: A Novel Method for the Detection of O-GlcNAc-modified Proteins by Lectin Affinity Gel Electrophoresis

BIO-PROTOCOL ◽  
2018 ◽  
Vol 8 (23) ◽  
Author(s):  
Ko Fujioka ◽  
Yuji Kubota ◽  
Mutsuhiro Takekawa
1978 ◽  
Vol 79 (1) ◽  
pp. 132-137 ◽  
Author(s):  
G Mintz ◽  
L Glaser

After separation of whole proteins of chick neural retina by polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate (SDS), a number of glycoproteins can be detected by staining the gels with 125I-labeled wheat germ agglutinin (WGA) and other lectins. The glycoprotein patterns show both quantitative and qualitative changes between days 7 and 13 of development. Some of these glycoproteins can be separated by chromatography on columns of insolubilized lectins. These observations suggest that purification of some of these glycoproteins identified by staining with radioactive lectins would yield retinal antigens which may be specific for developmental stage and cell type.


1987 ◽  
Vol 58 (04) ◽  
pp. 960-963 ◽  
Author(s):  
Beate Kehrel ◽  
Renate Kokott ◽  
Leopold Balleisen ◽  
Werner Stenzinger ◽  
Kenneth J Clemetson ◽  
...  

SummaryA time-saving and sensitive high resolution method lor the analysis and identification of platelet glycoproteins using non-radioactive compounds has been developed. Platelet proteins (50 μg) of normal subjects were separated by isoelectric focusing and SDS-PAGE. Proteins were either stained with silver or electroblotted onto nitrocellulose. Nitrocellulose blots were treated with the following biotinylated lectins : Abrus precatorius lectin, concanavalin A, Lens culinaris lectin, or wheat germ agglutinin. Staining was achieved by avidin-biotin-coupled peroxidase using 4-chloro-l-naphthol as the substrate. A rapid overview of platelet glycoproteins may be obtained by applying all the lectins to a single blot.


1984 ◽  
Vol 51 (02) ◽  
pp. 212-216 ◽  
Author(s):  
David A Hart ◽  
Robert Kramer ◽  
Witold Cieplak

SummaryEnzymes functioning as plasminogen activators in commercial urokinase preparations and individual human urine concentrates were subjected to affinity chromatography on columns of lentil lectin-sepharose, ricin-sepharose, wheat germ agglutinin-sephar-ose, lotus lectin-sepharose and concanavalin A-sepharose.Chromatography of the enzymes from both sources yielded similar results for all lectins except lentil lectin. Urokinase from several commercial sources was approximately 50% adherent to lentil lectin-sepharose while only 5-10% of the urinary plasminogen activators from individuals was adherent to this lectin. SDS-PAGE followed by zymography indicated that the observed differences between commercial and individual samples could be due to the presence in urine concentrates of subpopulations of plasminogen activators which were absent from the commercial samples.


1985 ◽  
Vol 5 (4) ◽  
pp. 303-308 ◽  
Author(s):  
W. Mark Abbott ◽  
Philip G. Strange

Dopamine D2 receptors, detected by [3H]spiperone Dopamine D2 receptors, detected by [3H]spiperone binding, were solubilized from bovine caudate nucleus by cholate/sodium chloride and were found to bind to wheat germ agglutinin immobilized on agarose. Specific elution could be achieved with N-acetylglucosamine whereas other sugars tested were inactive in this regard. The eluted preparation was enriched in solubilized receptors about sevenfold. The pharmaco-logical properties of the preparation were essentially unchanged by the lectin affinity purification procedure. The D2 dopamine receptor is therefore a glycoprotein. binding, were solubilized from bovine caudate nucJeus by cholate/sodium chloride and were found to bind to wheat germ agglutinin immobilized on agarose. Specific elution could be achieved with N-acetylglucosamine whereas other sugars tested were inactive in this regard. The eluted preparation was enriched in solubilized receptors about sevenfold. The pharmacological properties of the preparation were essentially unchanged by the lectin affinity purification procedure. The D2 dopamine receptor is therefore a glycoprotein.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ryosuke Nakamura ◽  
Tatsuya Katsuno ◽  
Yo Kishimoto ◽  
Shinji Kaba ◽  
Masayoshi Yoshimatsu ◽  
...  

HortScience ◽  
1991 ◽  
Vol 26 (7) ◽  
pp. 910-913 ◽  
Author(s):  
Randall P. Niedz ◽  
Michael G. Bausher ◽  
C. Jack Hearn

leaf and seed glycoproteins were detected after sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and electroblotting onto polyvinylidene difluoride (PVDF) membrane when probed with biotinylated lectin at 1 μg·ml-1. Four lectins representing three carbohydrate-binding groups were used as probes. A preformed avidin-biotin-complex (ABC) was used to detect the glycoprotein-bound lectins and resulted in dark bands and little background staining. Concanavalin A (ConA) and wheat germ agglutinin (WGA) resulted in the darkest-staining bands. The four Citrus spp. and one related species studied had unique seed glycoprotein profiles when probed with ConA and WGA. This procedure might be useful in clarifying citrus taxonomy, providing genetic markers, and in physiological studies involving glycoproteins.


1989 ◽  
Vol 62 (02) ◽  
pp. 815 ◽  
Author(s):  
Marjorie B Zucker ◽  
Robert A Grant ◽  
Evelyn A Mauss

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