"Me_U _We are Chemist": March 2014

Assalamualaikum w.b.t

Hi everyone! Today we are going to share with you about XML. Actually,

what is XML?

XML is stand for Extensible Markup Language ,which is created to structure, store, and transport information. XML is only just Plain Text and nothing special. Besides that, the software that can handle plain text can also handle XML.

Function of XML

The most important part in this topic of XML is XML is not a Replacement for HTML.

It is important to understand that XML is not a replacement for HTML. In most web applications, XML is used to transport data, while HTML is used to format and display the data.

Table 1: Difference between XML and HTML

	XML	HTML
Definition	Markup language defines a set of rules for encoding documents that can be read by both humans and machines. Designed with focus on storing and transporting data	Markup language for displaying web pages in a web browser. Designed to display data with focus on how the data looks
Date when invented	1996	1990
Type	Dynamic	Static
Language Type	Neither presentation, nor programming	Presentation
Tags	Custom tags can be created by the author	Predefined

Next, we proceed with the example of XML Document. XML documents use a self-describing and simple syntax:
–<?xml version="1.0" encoding="ISO-8859-1"?><note><to>Tove</to><from>Jani</from><heading>Reminder</heading><body>Don't forget me this weekend!</body></note>
The first line is the XML declaration and it defines the XML version (1.0) and the encoding used (ISO-8859-1 = Latin-1/West European character set). The next line describes the root element of the document (like saying: "this document is a note"): <note>
Besides that, XML also has their own syntax rule:
1) All XML Elements Must Have a Closing Tag

2) In HTML, you will often see elements that don't have a closing tag:

–This is a paragraph

This is another paragraph

3) In XML, it is illegal to omit the closing tag. All elements must have a closing tag:

–This is a paragraph

This is another paragraph

For more information on XML, you may click the link below to go through the portal:

XML

Last but not least, hope that you will understand what is XML and the know the difference between XML and HTML. Happy holiday!

" Learn to get in touch with the silence within yourself, and know that everything in life has purpose. There are no mistakes, no coincidences, all events are blessings given to us to learn from."

Elisabeth Kubler-Ross

Assalamualaikum and Good evening..

Today we would like to educate the readers about the Protein Data Bank. The Protein Data Bank (PDB) is a repository for the three-dimensional structural data of large biological molecules, such as proteins and nucleic acids. Besides, the data typically obtained by X-ray crystallography or NMR spectroscopy. Protein Data Bank is an information portal to biological macromolecular structures. Click the link below to go through the portal;

Protein Data Bank

Another application that related to Protien Data Bank is RasMol. RasMol is a computer program written for molecular graphics visualization intended and used primarily for the depiction and exploration of biological macromolecule structures. The software can be download from here;

RasM ol

Below are the example of RasMol software.

One of the example of biological molecular structure is N1 Neuraminidase H274Y + Oseltamivir.

Here is the image of the structure and data :

Table 1: Summary of structure of N1 Neuraminidase H274Y + Oseltamivir

Molecule	Neuraminidase H274Y + oseltamivir
Type	Protein
Organism	Influenza A virus (A/tern/Australia/G70C/1975(H11N9))
Gene name	NA
Scientific Name	Influenza A virus
Stoichiometry	Homo 4-mer - A4
Mutation	N294S

Last but not least, we hope that you get clear view about the Protein Data Bank and RasMol Software. This software is very useful for biologist and biochemist since its are applied in their daily work. Thats all from us. Thank You.

"Me_U _We are Chemist"

Thursday, 27 March 2014

XML ( Extensible Markup Language )

Wednesday, 5 March 2014

Protein Data Bank

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