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  1. SERPINA1 gene: MedlinePlus Genetics

    The SERPINA1 gene provides instructions for making a protein called alpha-1 antitrypsin, which is a type of serine protease inhibitor (serpin). Learn about this gene and related health conditions.

  2. SERPINA1 Gene - GeneCards | A1AT Protein | A1AT Antibody

    Nov 14, 2025 · Complete information for SERPINA1 gene (Protein Coding), Serpin Family A Member 1, including: function, proteins, disorders, pathways, orthologs, and expression. GeneCards - The …

  3. Alpha-1 Antitrypsin Deficiency: Causes, Symptoms & Treatment

    Oct 18, 2022 · Differences (mutations) in a specific gene cause Alpha-1 antitrypsin deficiency. The SERPINA1 gene makes a protein called Alpha-1 antitrypsin (AAT) that protects your lungs from …

  4. Alpha-1 antitrypsin - Wikipedia

    Alpha-1 antitrypsin or α1-antitrypsin (A1AT, α1AT, A1A, or AAT) is a protein belonging to the serpin superfamily. It is encoded in humans by the SERPINA1 gene. A protease inhibitor, it is also known …

  5. Variants of SERPINA1 and the increasing complexity of testing for

    The SERPINA1 gene that encodes alpha-1 antitrypsin (AAT) is a highly polymorphic 12.2kb gene clustered with other serpin genes on the long arm of chromosome 14 at position 32.13 (14q32.13), …

  6. SERPIN PEPTIDASE INHIBITOR, CLADE A, MEMBER 1; SERPINA1

    The SERPINA1 gene encodes alpha-1-antitrypsin (AAT), also known as protease inhibitor (PI), a major plasma serine protease inhibitor. AAT complexes predominantly with elastase, but also with trypsin, …

  7. Causes of Alpha-1 Antitrypsin Deficiency | Alpha-1 Foundation

    The SERPINA1 gene provides instructions for making a protein called alpha-1 antitrypsin (AAT), which protects the body from damage by its immune cells. If you have Alpha-1, you inherited two copies of …

  8. Serpina1 gene: Functions, mutations, and clinical significance - Genetics

    Dec 20, 2023 · The Serpina1 gene is responsible for producing alpha-1 antitrypsin, a protein that helps protect the lungs from damage caused by inflammation and infection.

  9. Gene: SERPINA1 (ENSG00000197249) - Summary - Homo_sapiens

    Gene: SERPINA1 ENSG00000197249 Description serpin peptidase inhibitor, clade A (alpha-1 antiproteinase, antitrypsin), member 1 [Source:HGNC Symbol;Acc: 8941]

  10. Gene - SERPINA1

    SERPINA1 Gene ... Functional Associations SERPINA1 has 17,514 functional associations with biological entities spanning 8 categories (molecular profile, organism, disease, phenotype or trait, …