2h07: Difference between revisions
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{{STRUCTURE_2h07| PDB=2h07 | SCENE= }} | {{STRUCTURE_2h07| PDB=2h07 | SCENE= }} | ||
===crystal structure of human phosphoribosyl pyrophosphate synthetase 1 mutant S132A=== | |||
{{ABSTRACT_PUBMED_16939420}} | |||
=== | ==Disease== | ||
[[http://www.uniprot.org/uniprot/PRPS1_HUMAN PRPS1_HUMAN]] Defects in PRPS1 are the cause of phosphoribosylpyrophosphate synthetase superactivity (PRPS1 superactivity) [MIM:[http://omim.org/entry/300661 300661]]; also known as PRPS-related gout. It is a familial disorder characterized by excessive purine production, gout and uric acid urolithiasis. Defects in PRPS1 are the cause of Charcot-Marie-Tooth disease X-linked recessive type 5 (CMTX5) [MIM:[http://omim.org/entry/311070 311070]]; also known as optic atrophy-polyneuropathy-deafness or Rosenberg-Chutorian syndrome. CMTX5 is a form of Charcot-Marie-Tooth disease, the most common inherited disorder of the peripheral nervous system. Charcot-Marie-Tooth disease is classified in two main groups on the basis of electrophysiologic properties and histopathology: primary peripheral demyelinating neuropathies characterized by severely reduced motor nerve conduction velocities (NCVs) (less than 38m/s) and segmental demyelination and remyelination, and primary peripheral axonal neuropathies characterized by normal or mildly reduced NCVs and chronic axonal degeneration and regeneration on nerve biopsy.<ref>PMID:17701900</ref> Defects in PRPS1 are the cause of ARTS syndrome (ARTS) [MIM:[http://omim.org/entry/301835 301835]]; also known as fatal ataxia X-linked with deafness and loss of vision. ARTS is a disorder characterized by mental retardation, early-onset hypotonia, ataxia, delayed motor development, hearing impairment, and optic atrophy. Susceptibility to infections, especially of the upper respiratory tract, can result in early death.<ref>PMID:17701896</ref> Defects in PRPS1 are the cause of deafness X-linked type 1 (DFNX1) [MIM:[http://omim.org/entry/304500 304500]]; also known as congenital sensorineural deafness X-linked 2 (DFN2). It is a form of deafness characterized by progressive, severe-to-profound sensorineural hearing loss in males. Females manifest mild to moderate hearing loss.<ref>PMID:20021999</ref> | |||
==Function== | |||
[[http://www.uniprot.org/uniprot/PRPS1_HUMAN PRPS1_HUMAN]] Catalyzes the synthesis of phosphoribosylpyrophosphate (PRPP) that is essential for nucleotide synthesis. | |||
==About this Structure== | ==About this Structure== | ||
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==Reference== | ==Reference== | ||
<ref group="xtra">PMID:016939420</ref><references group="xtra"/> | <ref group="xtra">PMID:016939420</ref><references group="xtra"/><references/> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Ribose-phosphate diphosphokinase]] | [[Category: Ribose-phosphate diphosphokinase]] | ||