What question did this study set out to answer?

This research aims to understand the effects of various mutations in the PCSK9 protein on its function and processing.

Loss- and Gain-of-function PCSK9 Variants

View Full Paper

Ask AI

Bookmark

Authors

Randomized trial explores PCSK9 mutations impact on LDL receptor activity, suggesting potential for new treatments.

This research aims to understand the effects of various mutations in the PCSK9 protein on its function and processing.
Mutagenized the P1 cleavage site of PCSK9 Gln(152) into other amino acids and analyzed resulting variants.
Evaluated secretion and expression of mutants, focusing on their ability to exit the endoplasmic reticulum.
Investigated the effects of multiple Asp(374) variants on LDL receptor degradation activity.
Only Gln, Met, Ala, Ser, Thr, and Asn were recognized by PCSK9 at the P1 site, showing unexpected specificity.
Mutations outside these residues created a dominant negative effect, trapping PCSK9 in the endoplasmic reticulum.
Most mutations at Asp(374) increased LDL receptor degradation activity, with specific variants showing varying levels of effectiveness.

Benjannet et al. (2012) studied this question.

View Full Paper

Ask AI

Bookmark