Proteomics

Dataset Information

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LC-MS/MS of HNE-apoE3 and HNE-apoE4


ABSTRACT: The overall goal of our study is to understand the effect of HNE modification on the structure and function of apolipoprotein E3 (apoE3) and apoE4, which play a critical role in brain cholesterol homeostasis. Immunoblots indicated HNE modification of recombinant apoE3 and apoE4 with a major band at ~36 kDa, while LC-MS/MS analysis revealed modification of H140 and H299 in both, and additionally at C112 in apoE3.

INSTRUMENT(S): Orbitrap Fusion Lumos, Q Exactive

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): B Cell

DISEASE(S): Cardiovascular System Disease

SUBMITTER: Vas Narayanaswami  

LAB HEAD: Vas Narayanaswami

PROVIDER: PXD038105 | Pride | 2024-08-09

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
MSB43705A.raw Raw
MSB43705A__F158301_.mzid.gz Mzid
MSB43705A__F158301_.mzid_MSB43705A__F158301_.MGF Mzid
MSB43706A.raw Raw
MSB43706A__F158302_.mzid.gz Mzid
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Publications

Isoform-specific modification of apolipoprotein E by 4-hydroxynonenal: protective role of apolipoprotein E3 against oxidative species.

Abeer Muhammad I MI   Abdulhasan Abbas A   Haguar Zahraa Z   Narayanaswami Vasanthy V  

The FEBS journal 20230208 11


High levels of 4-hydroxynonenal (HNE), arising from lipid peroxidation, and HNE-modified proteins have been identified in postmortem brains of ageing and Alzheimer's disease (AD) patients. The goal of this study is to understand the effect of HNE modification on the structure and function of recombinant apolipoprotein E3 (apoE3) and apolipoprotein E4 (apoE4), which play a critical role in brain cholesterol homeostasis. The two isoforms differ in a single amino acid at position 112: Cys in apoE3  ...[more]

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