Biomarkers and the Genome

Biomarkers

• Definition of Biomarker
  • A biomarker is defined as a marker expressed on cells.
  • Term "marker" refers to any identifiable entity on the surface of cells.
  • Common illustration: Comparing ABO blood types to fruits for understanding.
  • Typical representation: Often proteins expressed on cell surfaces.

Importance of Biomarkers

• Purpose of Teaching Biomarkers
  • The lecture aims to introduce students to the significance of biomarkers and their role in biological processes.

The Genome

• Definition and Function

  • The genome serves as the "instruction manual" for life.
  • Its contents are pivotal in bioinformatics and biological sciences.

• Gene Count

  • Contains approximately 20,000 genes.
  • Initial impression: encoding roughly 20,000 proteins.
  • Clarification: It encodes significantly more than this amount.

• Future Learning Objectives

  • Course will elucidate mechanisms behind the discrepancies in gene number vs. protein number.
  • Focus on understanding how proteins are synthesized and their functional relevance.

Protein Functionality

• Role of Proteins

  • Proteins are vital as they perform the work within biological systems.
  • Functions of proteins include:
  • Structural formation (building blocks of organisms).
  • Catalyzing biochemical reactions (acting as enzymes).

• Outcomes of Protein Activity

  • Protein functionality can lead to improvements or various effects in biological systems.
  • Highlight of the importance of understanding protein interaction and functionality in cells.