A_amylase_inhibAlpha amylase inhibitor |
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| SMART accession number: | SM00783 |
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| Description: | Alpha amylase inhibitor inhibits mammalian alpha-amylases specifically, by forming a tight stoichiometric 1:1 complex with alpha-amylase. The inhibitor has no action on plant and microbial alpha amylases. |
| Interpro abstract (IPR000833): | Alpha-amylase inhibitor inhibits mammalian alpha-amylases specifically, by forming a tight stoichiometric 1:1 complex with alpha-amylase. The inhibitor has no action on plant and microbial alpha amylases. A crystal structure has been determined for tendamistat, the 74-amino acid inhibitor produced by Streptomyces tendae that targets a wide range of mammalian alpha-amylases [(PUBMED:14501112)]. The binding of tendamistat to alpha-amylase leads to the steric blockage of the active site of the enzyme. The crystal structure of tendamistat revealed an immunoglobulin-like fold that could potentially adopt multiple conformations. Such molecular flexibility could enable an induced-fit type of binding that would both optimise binding and allow broad target specificity. More information about this protein can be found at Protein of the Month: alpha-Amylase []. |
| GO function: | alpha-amylase inhibitor activity (GO:0015066) |
| Family alignment: |
There are 11 A_amylase_inhib domains in 11 proteins in SMART's nrdb database.
Click on the following links for more information.
- Evolution (species in which this domain is found)
- Cellular role (predicted cellular role)
- Structure (3D structures containing this domain)
- Links (links to other resources describing this domain)
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