Alpha 1-antichymotrypsin
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| serpin peptidase inhibitor, clade A (alpha-1 antiproteinase, antitrypsin), member 3
| |
| Identifiers | |
| Symbol | SERPINA3 |
| Alt. Symbols | AACT |
| Entrez | 12 |
| HUGO | 16 |
| OMIM | 107280 |
| RefSeq | NM_001085 |
| UniProt | P01011 |
| Other data | |
| Locus | Chr. 14 q32.1 |
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Alpha 1-antichymotrypsin is an alpha globulin glycoprotein that is a member of the serine proteinase inhibitor (serpin) family.
It inhibits the activity of certain enzymes called proteinases, such as cathepsin G that is found in neutrophils, and chymases found in mast cells, by cleaving them into a different shape or conformation. This activity protects some tissues, such as the lower respiratory tract, from damage caused by proteolytic enzymes.[1]
Alpha 1-antichymotrypsin is also associated with the pathogenesis of Alzheimer's disease as it enhances the formation of amyloid-fibrils in this disease.[1]
This enzyme is produced in the liver, and is an acute phase protein that is induced during inflammation.
References
External links
Serpins | |
|---|---|
| inhibitory | Alpha 1-antichymotrypsin - Alpha 1-antitrypsin - Alpha 2-antiplasmin - Antithrombin - C1-inhibitor - Heparin cofactor II - Protein C inhibitor - Plasminogen activator inhibitor-1 - Plasminogen activator inhibitor-2 - Protein Z-related protease inhibitor |
| noninhibitory | Maspin - Ovalbumin - Heat shock protein 47 - Thyroxine-binding globulin - Transcortin |
Globulins: alpha globulins |
|---|
| Alpha 1-antichymotrypsin - Alpha 1-antitrypsin - Alpha 2-macroglobulin - Alpha 2-antiplasmin - Antithrombin - Ceruloplasmin - Haptoglobin - Heparin cofactor II - Orosomucoid - Retinol binding protein - Transcortin |
Protein: glycoproteins |
|---|
| Activin - ADAM protein - Alpha 1-antichymotrypsin - Apolipoprotein H - CD70 - Asialoglycoprotein - Avidin - B-cell activating factor - 4-1BB ligand - Cholesterylester transfer protein - Clusterin - Colony-stimulating factor - Haemopexin - Inhibin - Lactoferrin - Membrane glycoproteins - Mucoprotein - Myelin protein zero - Osteonectin - Protein C - Protein S - Proteoglycan - Serum Amyloid P component - Sialoglycoprotein (CD43, Glycophorin, Glycophorin C) - Thrombopoietin - Thyroglobulin - Thyroxine-binding proteins - Transcortin - Tumor necrosis factor-alpha - Uteroglobin - Vitronectin |
Acute phase proteins |
|---|
| Alpha 1-antichymotrypsin - Alpha 1-antitrypsin - Alpha 2-macroglobulin - C-reactive protein - Ceruloplasmin - C3 - Fibrin - Haptoglobin - Haemopexin - Orosomucoid - Serum albumin (negative) - Amyloid (P, A) - Transferrin |
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
