Lectin affinity capillary electrophoresis in glycoform analysis applying the partial filling technique

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Bergström, Maria (författare)

Nilsson, Mikael (författare)

Isaksson, Roland (författare)

Rydén, Ingvar (författare)

Påhlsson, Peter, 1962- (författare): Linköpings universitet,Hälsouniversitetet,Avdelningen för medicinsk cellbiologi

Ohlson, Sten (författare)

(creator_code:org_t)

Elsevier BV, 2004
2004
Engelska.
Ingår i: Journal of chromatography. B. - : Elsevier BV. - 1570-0232 .- 1873-376X. ; 809:2, s. 323-329

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Abstract Ämnesord

Stäng

The study of protein glycosylation and its significance in biological interactions is a field of growing interest. This work demonstrates a lectin-based separation of protein glycoforms of α1-acid glycoprotein (AGP or orosomucoid) with capillary electrophoresis. Glycoform analysis was performed with a "partial filling technique" with the lectin Concanavalin A (Con A) as affinity ligand. Con A separated human AGP into two peaks, the first peak included AGP glycoforms without biantennary glycans, and the second peak represented the fraction that had one or more biantennary glycans. The applicability of the method was demonstrated with the analysis of AGP from clinical samples and AGP treated with N-glycosidase F. The AGP separation was also used as a reporter system to estimate the dissociation constant (KD) between Con A and a competing sugar. © 2004 Elsevier B.V. All rights reserved.

Av författaren/redakt...: Bergström, Maria; Nilsson, Mikael; Isaksson, Roland; Rydén, Ingvar; Påhlsson, Peter, ...; Ohlson, Sten

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