Comparative ranking of human chromosomes based on post-genomic data

Area of Science:

• Proteomics
• Genomics
• Biomedical Research

Background:

• The Human Proteome Project (HPP) aims to comprehensively map all human proteins.
• A chromosome-centric approach, similar to the Human Genome Project (HGP), is employed.
• Prioritizing chromosomes is crucial for efficient HPP research.

Purpose of the Study:

• To introduce a novel scoring method for ranking human chromosomes within the chromosome-centric HPP (C-HPP).
• To prioritize chromosomes based on health relevance, existing knowledge, and data coverage.
• To facilitate targeted research efforts in human proteomics.

Main Methods:

• Developed a scoring system combining health problem relevance, published knowledge, and transcriptome/proteome coverage.
• Calculated chromosome scores using a weighted combination of these indexes.
• Ranked all human chromosomes based on the computed scores.

Main Results:

• Human chromosomes Y, 13, and 18 were identified as top-ranked.
• Chromosomes 19, 11, and 17 received comparatively lower scores.
• Chromosome 18, part of the Russian C-HPP effort, has ~25% of its genes linked to diseases like cancer and diabetes.

Conclusions:

• The proposed scoring method effectively ranks chromosomes for HPP research.
• Top-ranked chromosomes like 18 are rich in disease-associated genes, highlighting research priorities.
• This adaptable approach can guide research prioritization for other gene sets and pathways.