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Related Concept Videos

Antibody Structure and Classes01:25

Antibody Structure and Classes

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Antibodies, also known as immunoglobulins, are produced by B cells in response to foreign substances, such as bacteria and viruses. These proteins are critical for recognizing and neutralizing these substances, protecting the body from potential harm.
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Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
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Antibodies consist of four polypeptide chains: two identical heavy...
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Protein Families

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Protein families are groups of homologous proteins; that is, they have similarities in amino acid sequences and three-dimensional structures. Protein families usually occur because of gene duplication, where an additional copy of a gene is inserted into the genome of an organism.   Mutations that change the amino acids but still allow the protein to be properly synthesized, will lead to new protein family members.   If these new proteins contain similar amino acids in key...
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Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
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In organisms, proteins are the most abundant macromolecules. They act as the building blocks of life and play various crucial roles in the body. Proteins can be broadly classified into two distinct subtypes based on their shape and solubilities: globular proteins and fibrous proteins.
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Immunocytochemistry (ICC) and immunohistochemistry (IHC) are techniques that use antibodies to check for specific proteins or antigens in a sample. The technique was first published by Albert Coons in 1941 to detect the presence of pneumococcal antigen in tissue sections from mice infected with Pneumococcus. Immunocytochemistry helps localization of proteins or antigens in individual cells like blood cells, stem cells, etc., while immunohistochemistry does the same for tissue samples.
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Related Experiment Video

Updated: Oct 4, 2025

Isolation and Characterization Of Chimeric Human Fc-expressing Proteins Using Protein A Membrane Adsorbers And A Streamlined Workflow
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Immunoglobulin Classification Based on FC* and GC* Features.

Hao Wan1, Jina Zhang2, Yijie Ding3

  • 1Institute of Advanced Cross-field Science, College of Life Science, Qingdao University, Qingdao, China.

Frontiers in Genetics
|February 10, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces a novel method for classifying immunoglobulins using two key features, FC* and GC*. The research achieved 80.7% accuracy, aiding in drug development and disease research.

Keywords:
MRMDautopropimmunoglobulin classificationkey feature extractionmachine learning

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Area of Science:

  • Biochemistry
  • Immunology
  • Bioinformatics

Background:

  • Immunoglobulins are crucial for regulating immune responses and disease processes.
  • Accurate identification of immunoglobulins is essential for therapeutic drug development and understanding disease mechanisms.
  • Traditional methods often rely on high-dimensional features, which can be complex and computationally intensive.

Purpose of the Study:

  • To develop a simplified yet effective method for classifying immunoglobulins and non-immunoglobulins.
  • To evaluate the efficacy of using two specific features, FC* and GC*, for immunoglobulin classification.
  • To assess the potential of these features in representing functional and structural properties of immunoglobulins.

Main Methods:

  • A classification approach was employed using two distinct features: FC* and GC*.
  • The J48 classifier algorithm, implemented within Weka software, was utilized for the classification task.
  • A dataset comprising 228 samples (109 immunoglobulin and 119 non-immunoglobulin) was subjected to 10-fold cross-validation.

Main Results:

  • The classification method achieved an overall accuracy of 80.7% in distinguishing between immunoglobulin and non-immunoglobulin samples.
  • The FC* feature was identified within the immunoglobulin subtype domain, indicating its relevance.
  • The study demonstrated that FC* and GC* features can effectively represent key immunoglobulin properties.

Conclusions:

  • The proposed method using FC* and GC* features offers an efficient approach for immunoglobulin classification.
  • The identified FC* feature holds potential for representing functional and structural characteristics of immunoglobulins.
  • This classification strategy can support advancements in drug discovery and immunological research.