Proteomics

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Chinese Hamster Ovary cell proteins co-purified with recombinant HIV-1 envelopes, part 2


ABSTRACT: Chinese Hamster Ovary (CHO) cells are frequently used to produce recombinant HIV envelope protein gp120. In this study, we characterized the CHO proteins that become co-purified with gp120 when lectin affinity chromatography is used. Many of co-purified CHO proteins identified were extracellular matrix components. We verified a method for separating gp120 from these CHO proteins with anion exchange chromatography, and assessed the biochemical activity of gp120 preparations with and without co-purified CHO proteins.

INSTRUMENT(S): Orbitrap Fusion

ORGANISM(S): Cricetulus Griseus (chinese Hamster) (cricetulus Barabensis Griseus)

SUBMITTER: David Plotnik  

LAB HEAD: Shiu-Lok Hu

PROVIDER: PXD006061 | Pride | 2017-09-04

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
20161205_DEAE-Peak1-MW959.mzXML Mzxml
20161205_DEAE-Peak1-MW959.pep.xml Pepxml
20161205_DEAE-Peak1-MW959.raw Raw
CRIGR.fasta.20161205 Fasta
comet.params Other
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Publications

Extracellular Matrix Proteins Mediate HIV-1 gp120 Interactions with α<sub>4</sub>β<sub>7</sub>.

Plotnik David D   Guo Wenjin W   Cleveland Brad B   von Haller Priska P   Eng Jimmy K JK   Guttman Miklos M   Lee Kelly K KK   Arthos James J   Hu Shiu-Lok SL  

Journal of virology 20171013 21


Gut-homing α<sub>4</sub>β<sub>7</sub><sup>high</sup> CD4<sup>+</sup> T lymphocytes have been shown to be preferentially targeted by human immunodeficiency virus type 1 (HIV-1) and are implicated in HIV-1 pathogenesis. Previous studies demonstrated that HIV-1 envelope protein gp120 binds and signals through α<sub>4</sub>β<sub>7</sub> and that this likely contributes to the infection of α<sub>4</sub>β<sub>7</sub><sup>high</sup> T cells and promotes cell-to-cell virus transmission. Structures withi  ...[more]

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