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An α-amylase called "Termamyl", sourced from Bacillus licheniformis, is also used in some detergents, especially dishwashing and starch-removing detergents.<ref> "The use of enzymes in detergents". Faculty of Engineering, Science and the Built Environment, London South Bank University. 20 December 2004. Archived from the original on 20 October 2009. Retrieved 21 November 2009.</ref> | An α-amylase called "Termamyl", sourced from Bacillus licheniformis, is also used in some detergents, especially dishwashing and starch-removing detergents.<ref> "The use of enzymes in detergents". Faculty of Engineering, Science and the Built Environment, London South Bank University. 20 December 2004. Archived from the original on 20 October 2009. Retrieved 21 November 2009.</ref> | ||
== Structural highlights == | == Structural highlights == | ||
Shown as 1hvx is the structure of the thermostable α-amylase of Bacillus stearothermophilus (BSTA)[3]. BSTA is comprised of a single polypeptide chain. This chain is folded into three domains: A, B and C. These domains are generally found on all α-amylase enzymes. The <scene name='60/609816/A_domain/1'>A domain</scene> constitutes the core structure, with a (β/α)8-barrel.The B domain consists of a sheet of four anti-parallel β-strands with a pair of anti-parallel β-strands. Long loops are observed between the β-strands. Located within the B domain is the binding site for Ca2+-Na+-Ca2+. Domain C consisting of eight β-strands is assembled into a globular unit forming a Greek key motif. It also holds the third Ca2+ binding site in association with domain A. Positioned on the C-terminal side of the β-strands of the (β/α)8-barrel in domain A is the active site. The catalytic residues involved for the BSTA active site are Asp234, Glu264, and Asp331 | |||
<scene name='60/609816/Beta-sheet/1'>beta-sheet</scene> | <scene name='60/609816/Beta-sheet/1'>beta-sheet</scene> | ||
This is a sample scene created with SAT to <scene name="/12/3456/Sample/1">color</scene> by Group, and another to make <scene name="/12/3456/Sample/2">a transparent representation</scene> of the protein. You can make your own scenes on SAT starting from scratch or loading and editing one of these sample scenes. | This is a sample scene created with SAT to <scene name="/12/3456/Sample/1">color</scene> by Group, and another to make <scene name="/12/3456/Sample/2">a transparent representation</scene> of the protein. You can make your own scenes on SAT starting from scratch or loading and editing one of these sample scenes. | ||