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Related Concept Videos

Complementation Tests00:49

Complementation Tests

A complementation test is a simple cross to identify whether the two mutations are located on the same gene or different genes. It was first performed by Edward Lewis in the 1940s while working on fruit flies. He developed the test to identify the location and arrangement of different mutations on chromosomes.
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Complement System

The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a membrane...
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Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
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Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...

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High-resolution Melting PCR for Complement Receptor 1 Length Polymorphism Genotyping: An Innovative Tool for Alzheimer's Disease Gene Susceptibility Assessment
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Complement genetics, deficiencies, and disease associations.

Karine R Mayilyan1

  • 1Institute of Molecular Biology, Armenian National Academy Sciences, Yerevan 0014, Armenia. k_mayilyan@mb.sci.am

Protein & Cell
|July 10, 2012
PubMed
Summary
This summary is machine-generated.

Genetic deficiencies in the complement system, crucial for innate immunity, are linked to autoimmune diseases and increased infection susceptibility. Understanding these genetic links is vital for future research.

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Area of Science:

  • Immunology
  • Genetics
  • Systems Biology

Background:

  • The complement system is a vital part of innate immunity, involving over 45 genes.
  • Genetic deficiencies in complement components are associated with autoimmune diseases and infections.
  • Knowledge gaps exist regarding lectin pathway components and complement regulators/receptors.

Purpose of the Study:

  • To review current knowledge on complement component deficiencies and their disease associations.
  • To integrate genetic data with recent updates on complement system research.
  • To provide a foundation for systems biology and genetics approaches to complement research.

Main Methods:

  • Review of existing literature on complement genetics and disease associations.
  • Integration of genetic data with functional and clinical information.
  • Analysis from a systems biology and systems genetics perspective.

Main Results:

  • Deficiencies in early classical pathway components are linked to autoimmune diseases.
  • Deficiencies in mannan-binding lectin (MBL) and alternative/terminal pathway components increase infection risk.
  • Consequences of deficiencies in complement regulators and receptors vary based on their role in the cascade.

Conclusions:

  • Genetic variations in the complement system significantly impact immune function and disease susceptibility.
  • Further investigation into less-studied components like lectin pathway elements is needed.
  • A systems-level approach is crucial for understanding complement-related diseases.