Structural dynamics of inosine triphosphate pyrophosphatase (ITPA) protein and two clinically relevant mutants: molecular dynamics simulations
نویسندگان
چکیده
منابع مشابه
Cloning, expression, and characterization of a human inosine triphosphate pyrophosphatase encoded by the itpa gene.
ITP and dITP exist in all cells. dITP is potentially mutagenic, and the levels of these nucleotides are controlled by inosine triphosphate pyrophosphatase (EC ). Here we report the cloning, expression, and characterization of a 21.5-kDa human inosine triphosphate pyrophosphatase (hITPase), an enzyme whose activity has been reported in many animal tissues and studied in populations but whose pro...
متن کاملITPA (inosine triphosphate pyrophosphatase): from surveillance of nucleotide pools to human disease and pharmacogenetics.
Cellular nucleotide pools are often contaminated by base analog nucleotides which interfere with a plethora of biological reactions, from DNA and RNA synthesis to cellular signaling. An evolutionarily conserved inosine triphosphate pyrophosphatase (ITPA) removes the non-canonical purine (d)NTPs inosine triphosphate and xanthosine triphosphate by hydrolyzing them into their monophosphate form an...
متن کاملP-121: Cloning and Expression of The Inosine Triphosphate Pyrophosphatase Gene Variant II in E.coli
Background Environmental and cellular inappropriate conditions can cause damages to cells nucleotide poll. Deamination and oxidation damages interfere with cell�s vital reactions. Inosine triphosphate pyrophosphatase (ITPA), an evolutionary conserved enzyme, plays a critical role in elimination of non-canonical bases. In human genome, the ITPA gene is located on chromosome 20 short arm and tran...
متن کاملStructure of the orthorhombic form of human inosine triphosphate pyrophosphatase.
The structure of human inosine triphosphate pyrophosphohydrolase (ITPA) has been determined using diffraction data to 1.6 A resolution. ITPA contributes to the accurate replication of DNA by cleansing cellular dNTP pools of mutagenic nucleotide purine analogs such as dITP or dXTP. A similar high-resolution unpublished structure has been deposited in the Protein Data Bank from a monoclinic and p...
متن کاملDesigning a new tetrapeptide to inhibit the BIR3 domain of the XIAP protein via molecular dynamics simulations
The XIAP protein is a member of apoptosis proteins family. The XIAP protein plays a central role in the inhibition of apoptosis and consists of three Baculoviral IAP Repeat domains. The BIR3 domain binds directly to the N-terminal of caspase-9 and therefore it inhibits apoptosis. N-terminal tetrapeptide region of SMAC protein can bind to BIR3, inhibit it and subsequently induce apoptosis. In th...
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ژورنال
عنوان ژورنال: Journal of Biomolecular Structure and Dynamics
سال: 2020
ISSN: 0739-1102,1538-0254
DOI: 10.1080/07391102.2020.1727363