Inosine triphosphate pyrophosphatase

Definition:

Pyrophosphatase that hydrolyzes the non-canonical purine nucleotides inosine triphosphate (ITP), deoxyinosine triphosphate (dITP) as well as 2'-deoxy-N-6-hydroxylaminopurine triphosphate (dHAPTP) and xanthosine 5'-triphosphate (XTP) to their respective monophosphate derivatives. The enzyme does not distinguish between the deoxy- and ribose forms. Probably excludes non-canonical purines from RNA and DNA precursor pools, thus preventing their incorporation into RNA and DNA and avoiding chromosomal lesions.

References:

[1]. Nicholas E Burgis, et al. Substrate specificity of RdgB protein, a deoxyribonucleoside triphosphate pyrophosphohydrolase. J Biol Chem. 2007 Feb 9;282(6):3531-8. [Content Brief]

[2]. S Lin, et al. Cloning, expression, and characterization of a human inosine triphosphate pyrophosphatase encoded by the itpa gene. J Biol Chem. 2001 Jun 1;276(22):18695-701. [Content Brief]

Biomedical Dictionary

The Biomedical Dictionary is a comprehensive and professional collection of biological academic terms and subject datas. All explanations are supported by authoritative books or high impact factor literatures, and you can acquire accurate explanations of the biomedical terms you want to know.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Name
Email *

	Sorry, but the email address you supplied was invalid.