Saba Valadkhan
Encyclopedia
Dr. Saba Valadkhan is an Iranian American biomedical scientist, and an Assistant Professor and RNA
RNA
Ribonucleic acid , or RNA, is one of the three major macromolecules that are essential for all known forms of life....

 researcher at Case Western Reserve University
Case Western Reserve University
Case Western Reserve University is a private research university located in Cleveland, Ohio, USA...

. In 2005, she was awarded the GE
Gê are the people who spoke Ge languages of the northern South American Caribbean coast and Brazil. In Brazil the Gê were found in Rio de Janeiro, Minas Gerais, Bahia, Piaui, Mato Grosso, Goias, Tocantins, Maranhão, and as far south as Paraguay....

 / Science
Science (journal)
Science is the academic journal of the American Association for the Advancement of Science and is one of the world's top scientific journals....

Young Scientist Award for her breakthrough in understanding the mechanism of spliceosome
Spliceosome
A spliceosome is a complex of snRNA and protein subunits that removes introns from a transcribed pre-mRNA segment. This process is generally referred to as splicing.-Composition:...

s - "akin to finding the Holy Grail of the splicing
Splicing (genetics)
In molecular biology and genetics, splicing is a modification of an RNA after transcription, in which introns are removed and exons are joined. This is needed for the typical eukaryotic messenger RNA before it can be used to produce a correct protein through translation...

 catalysis
Catalysis
Catalysis is the change in rate of a chemical reaction due to the participation of a substance called a catalyst. Unlike other reagents that participate in the chemical reaction, a catalyst is not consumed by the reaction itself. A catalyst may participate in multiple chemical transformations....

 field" http://www.payvand.com/news/05/aug/1088.html - a critical area of research, given that "20 percent or 30 percent of all human genetic diseases are caused by mistakes that the spliceosome makes" http://www.aaas.org/news/releases/2005/0210ys-Valadkhan.shtml. Valadkhan qualified as a medical doctor in Iran
Iran
Iran , officially the Islamic Republic of Iran , is a country in Southern and Western Asia. The name "Iran" has been in use natively since the Sassanian era and came into use internationally in 1935, before which the country was known to the Western world as Persia...

, before moving to the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 to pursue post-graduate study at Columbia University
Columbia University
Columbia University in the City of New York is a private, Ivy League university in Manhattan, New York City. Columbia is the oldest institution of higher learning in the state of New York, the fifth oldest in the United States, and one of the country's nine Colonial Colleges founded before the...

 in New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

.

The main focus of her research is elucidating the structure and function of the catalytic core of the spliceosome by taking advantage of a novel, minimal spliceosome she recently developed. This minimal system, which consists of only two spliceosomal snRNAs, catalyzes a reaction identical to the splicing reaction. In addition to providing direct evidence for RNA catalysis in the spliceosome, and thus, settling the longstanding and central question of the identity of the catalytic domain, the minimal system provides a novel and powerful tool for studying the structure and function of the spliceosome.

External links


See also

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