Affibody molecule-mediated depletion of HSA and IgG using different buffer compositions : a 15 min protocol for parallel processing of 1-48 samples

• High-abundant plasma proteins pose a challenge in a large number of proteomics-based technologies. Depletion of these high-abundant proteins has proven to be a fruitful strategy to circumvent masking of lower-abundant proteins that could serve as valuable biomarker candidates. However, current strategies often do not meet the throughput requirements of large-scale proteomic studies. In the present paper, a flexible and parallelized method for the depletion of high-abundant proteins is described, allowing the removal of the two most abundant proteins from 48 blood-derived samples in less than 15 min using Affibody molecules as affinity ligands. A sample-processing platform like this should be suitable for a number of proteomics technologies; its flexibility in buffer composition allows for different types of downstream applications.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Industriell bioteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Industrial Biotechnology (hsv//eng)

Nyckelord

Affibody molecule

human serum albumin (HSA)

IgG

protein depletion

high throughput analysis

sample preparation

serum or plasma analysis

Bioengineering

Bioteknik

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)