NP_001076.2
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NCBI GenBank Nucleotide #
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UniProt Primary Accession #
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UniProt Secondary Accession #
UniProt Related Accession #
NCBI Official Full Name
alpha-1-antichymotrypsin
NCBI Official Synonym Full Names
serpin peptidase inhibitor, clade A (alpha-1 antiproteinase, antitrypsin), member 3
NCBI Official Synonym Symbols
ACT; AACT; GIG24; GIG25; MGC88254 [Similar Products]
NCBI Protein Information
alpha-1-antichymotrypsin; serpin A3; OTTHUMP00000028439; growth-inhibiting protein 24; growth-inhibiting protein 25; cell growth-inhibiting gene 24/25 protein; serine (or cysteine) proteinase inhibitor, clade A, member 3
UniProt Protein Name
Alpha-1-antichymotrypsin
UniProt Synonym Protein Names
Cell growth-inhibiting gene 24/25 protein; Serpin A3
UniProt Synonym Gene Names
UniProt Entry Name
AACT_HUMAN
NCBI Summary for SERPINA3
The protein encoded by this gene is a plasma protease inhibitor and member of the serine protease inhibitor class. Polymorphisms in this protein appear to be tissue specific and influence protease targeting. Variations in this protein's sequence have been implicated in Alzheimer's disease, and deficiency of this protein has been associated with liver disease. Mutations have been identified in patients with Parkinson disease and chronic obstructive pulmonary disease. [provided by RefSeq]
UniProt Comments for SERPINA3
Function: Although its physiological function is unclear, it can inhibit neutrophil cathepsin G and mast cell chymase, both of which can convert angiotensin-1 to the active angiotensin-2. Ref.14
Subunit structure: Interacts with DNAJC1. Ref.18
Subcellular location: Secreted.
Tissue specificity: Plasma. Synthesized in the liver. Like the related alpha-1-antitrypsin, its concentration increases in the acute phase of inflammation or infection. Found in the amyloid plaques from the hippocampus of Alzheimer disease brains. Ref.7 Ref.8
Domain: The reactive center loop (RCL) extends out from the body of the protein and directs binding to the target protease. The protease cleaves the serpin at the reactive site within the RCL, establishing a covalent linkage between the carboxyl group of the serpin reactive site and the serine hydroxyl of the protease. The resulting inactive serpin-protease complex is highly stable.
Miscellaneous: Alpha-1-antichymotrypsin can bind DNA.
Sequence similarities: Belongs to the serpin family.
Caution: It is uncertain whether Met-1 or Met-4 is the initiator.
Sequence caution: The sequence AAA51543.1 differs from that shown. Reason: Frameshift at positions 101, 106, 111, 117, 123, 129 and 421. The sequence AAT08029.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened.The sequence AAT08029.1 differs from that shown. Reason: Frameshift at position 4. The sequence BAD92297.1 differs from that shown. Reason: Erroneous initiation. The sequence CAA48671.1 differs from that shown. Reason: Erroneous initiation.
Research Articles on SERPINA3
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Products associated with anti-SERPINA3 antibody
Pathways associated with anti-SERPINA3 antibody
Diseases associated with anti-SERPINA3 antibody
Organs/Tissues associated with anti-SERPINA3 antibody
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