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Wednesday, October 20, 2010


Exercise in cLass :

What is XML?
  • Was designed 2 describe & focus what data is
  • Stands 4 Extensinble Markup Language
  • Much like HTML.
  • Tags r x predefined
  • Uses a DTD / an XML schema 2 describe d data
  • w a DTD / XML
  • Schema is designed 2 self- descriptive
External Links :

Differences between HTML & XML

Displaying information
XMLCarrying information

Wednesday, October 13, 2010

Chem Sketch

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.

ChemSketch - An Introductory Guide

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

External Link :



Microsoft Excel (full name Microsoft Office Excel) is a spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables and a macro programming language called VBA (Visual Basic for Applications). It has been a very widely applied spreadsheet for these platforms, especially since version 5 in 1993. Excel forms part of Microsoft Office. The current versions are Microsoft Office Excel 2010 for Windows and 2008 for Mac.

Exercise 1




TabLes :

Standard file-extensions

Format Extension Main spreadsheet format which holds data in worksheets, charts, and macros
Add-in (VBA) .xlaAdds 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 .xldUsed in older versions of Excel.
Archive .xlkA backup of an Excel Spreadsheet
Add-in (DLL) .xllAdds custom functionality; written in C++/C, Visual Basic, Fortran, etc. and compiled in to a special dynamic-link library
Macro .xlmA macro is created by the user or pre-installed with Excel.

External links

Microsoft Excel official site
Office 2010 product guide
Interactive translation from Excel 2003 menus to 2007

Tuesday, October 12, 2010

Protein Data Bank

A Resource for Studying Biological Macromolecules

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.

TabLes :

Molecular Description

Classification Hydrolase
Structure Weight48027.40
Molecule ATP-dependent protease La 1
Polymer 1
FragmentBsLon, N-terminal domain
Scientific NameBacillus Subtilis
Expression SystemEscherichia Coli

External Link :


Wednesday, October 6, 2010


What is SMILE?

no one knows? So, let me tell u d real meaning of d phrase...

SMILE is stands for The simplified molecular input line entry specification for unambiguously describing the structure of chemical molecules using short ASCII strings..

TabLes :



External Link :
BBC News: Scanner shows unborn babies smile