Exercise in cLass :
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| XML | Carrying information |
What is ACD/ChemSketch ACD/ChemSketch is a chemical drawing software package from Advanced Chemistry Development, Inc. designed to be used alone or integrated with other applications. ChemSketch is used to draw chemical structures, reactions and schematic diagrams. It can also be used to design chemistryrelated reports and presentations. ACD/ChemSketch has the following major capabilities: · Structure Mode for drawing chemical structures and calculating their properties. · Draw Mode for text and graphics processing. · Molecular Properties calculations for automatic estimation of: * molecular weight; * percentage composition; * molar refractivity; * molar volume; * parachor; * index of refraction; * surface tension; * density; * dielectric constant; and * polarizability. ACD/ChemSketch can stand alone as a drawing package or act as the “front end” to other ACD software such as the NMR Predictor engines. 
| A. Introduction | B. Getting and installing ChemSketch |
| C. Drawing your first molecule | D. 3D structures -- introduction |
| E. 3D structures, within ChemSketch | F. 3D structures, for RasMol |
| G. Drawing in ChemSketch -- more basic features | H. Lewis structures (more templates) |
| I. Interactions between the ChemSketch and 3D modules | J. Stereochemistry: Drawing cis-trans isomers at double bonds |
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| Format Extension | Main spreadsheet format which holds data in worksheets, charts, and macros |
| Add-in (VBA) .xla | Adds custom functionality; written in VBA |
| Toolbar .xlb | The file extension where Microsoft Excel custom toolbar settings are stored. |
| Chart .xlc | A chart created with data from a Microsoft Excel spreadsheet that only saves the chart. To save the chart and spreadsheet save as .XLS. >XLC is not supported in Excel 2007. |
| Dialog .xld | Used in older versions of Excel. |
| Archive .xlk | A backup of an Excel Spreadsheet |
| Add-in (DLL) .xll | Adds custom functionality; written in C++/C, Visual Basic, Fortran, etc. and compiled in to a special dynamic-link library |
| Macro .xlm | A macro is created by the user or pre-installed with Excel. |
The PDB archive contains information about experimentally-determined structures of proteins, nucleic acids, and complex assemblies. As a member of the wwPDB, the RCSB PDB curates and annotates PDB data according to agreed upon standards.
The RCSB PDB also provides a variety of tools and resources. Users can perform simple and advanced searches based on annotations relating to sequence, structure and function. These molecules are visualized, downloaded, and analyzed by users who range from students to specialized scientists.
Lon ATP-dependent proteases are key components of the protein quality control systems of bacterial cells and eukaryotic organelles. Eubacterial Lon proteases contain an N-terminal domain, an ATPase domain, and a protease domain, all in one polypeptide chain.
| Classification | Hydrolase |
| Structure Weight | 48027.40 |
| Molecule | ATP-dependent protease La 1 |
| Polymer | 1 |
| Type | polypeptide(L) |
| Fragment | BsLon, N-terminal domain |
| Scientific Name | Bacillus Subtilis |
| Expression System | Escherichia Coli |
| SINGLE | - |
| DOUBLE | = |
| TRIPLE | # |
