Hypoxanthine guanine phosphoribosyltransferase (HPRT) deficiencies: HPRT1 mutations in new Japanese families and PRPP concentration. 2014

Yasukazu Yamada, and Noriko Nomura, and Kenichiro Yamada, and Reiko Kimura, and Daisuke Fukushi, and Nobuaki Wakamatsu, and Yasufumi Matsuda, and Takahiro Yamauchi, and Takanori Ueda, and Hiroshi Hasegawa, and Makiko Nakamura, and Kimiyoshi Ichida, and Kiyoko Kaneko, and Shin Fujimori
a Department of Genetics, Institute for Developmental Research , Aichi Human Service Center , Aichi , Japan.

Mutation of hypoxanthine guanine phosphoribosyltransferase (HPRT) gives rise to Lesch-Nyhan syndrome, which is characterized by hyperuricemia, severe motor disability, and self-injurious behavior, or HPRT-related gout with hyperuricemia. Four mutations were detected in two Lesch-Nyhan families and two families with partial deficiency since our last report. A new mutation of G to TT (c.456delGinsTT) resulting in a frameshift (p.Q152Hfs*3) in exon 3 has been identified in one Lesch-Nyhan family. In the other Lesch-Nyhan family, a new point mutation in intron 7 (c.532+5G>T) causing splicing error (exon 7 excluded, p.L163Cfs*4) was detected. In the two partial deficiency cases with hyperuricemia, two missense mutations of p.D20V (c.59A>T) and p.H60R (c.179A>G) were found. An increase of erythrocyte PRPP concentration was observed in the respective phenotypes and seems to be correlated with disease severity.

UI MeSH Term Description Entries
D007041 Hypoxanthine Phosphoribosyltransferase An enzyme that catalyzes the conversion of 5-phosphoribosyl-1-pyrophosphate and hypoxanthine, guanine, or MERCAPTOPURINE to the corresponding 5'-mononucleotides and pyrophosphate. The enzyme is important in purine biosynthesis as well as central nervous system functions. Complete lack of enzyme activity is associated with the LESCH-NYHAN SYNDROME, while partial deficiency results in overproduction of uric acid. EC 2.4.2.8. Guanine Phosphoribosyltransferase,HPRT,Hypoxanthine-Guanine Phosphoribosyltransferase,IMP Pyrophosphorylase,HGPRT,HPRTase,Hypoxanthine Guanine Phosphoribosyltransferase,Phosphoribosyltransferase, Guanine,Phosphoribosyltransferase, Hypoxanthine,Phosphoribosyltransferase, Hypoxanthine-Guanine,Pyrophosphorylase, IMP
D007926 Lesch-Nyhan Syndrome An inherited disorder transmitted as a sex-linked trait and caused by a deficiency of an enzyme of purine metabolism; HYPOXANTHINE PHOSPHORIBOSYLTRANSFERASE. Affected individuals are normal in the first year of life and then develop psychomotor retardation, extrapyramidal movement disorders, progressive spasticity, and seizures. Self-destructive behaviors such as biting of fingers and lips are seen frequently. Intellectual impairment may also occur but is typically not severe. Elevation of uric acid in the serum leads to the development of renal calculi and gouty arthritis. (Menkes, Textbook of Child Neurology, 5th ed, pp127) Choreoathetosis Self-Mutilation Hyperuricemia Syndrome,Hypoxanthine-Phosphoribosyl-Transferase Deficiency Disease,Choreoathetosis Self-Mutilation Syndrome,Complete HGPRT Deficiency Disease,Complete HPRT Deficiency,Complete Hypoxanthine-Guanine Phosphoribosyltransferase Deficiency,Deficiency Disease, Complete HGPRT,Deficiency Disease, Hypoxanthine-Phosphoribosyl-Transferase,Deficiency of Guanine Phosphoribosyltransferase,Deficiency of Hypoxanthine Phosphoribosyltransferase,HGPRT Deficiency,HGPRT Deficiency Disease, Complete,Hypoxanthine Guanine Phosphoribosyltransferase 1 Deficiency,Hypoxanthine Guanine Phosphoribosyltransferase Deficiency,Hypoxanthine Phosphoribosyltransferase Deficiency,Juvenile Gout, Choreoathetosis, Mental Retardation Syndrome,Juvenile Hyperuricemia Syndrome,Lesch-Nyhan Disease,Primary Hyperuricemia Syndrome,Total HPRT Deficiency,Total Hypoxanthine-Guanine Phosphoribosyl Transferase Deficiency,X-Linked Hyperuricemia,X-Linked Primary Hyperuricemia,Choreoathetosis Self Mutilation Hyperuricemia Syndrome,Choreoathetosis Self Mutilation Syndrome,Choreoathetosis Self-Mutilation Syndromes,Complete HPRT Deficiencies,Complete Hypoxanthine Guanine Phosphoribosyltransferase Deficiency,Deficiencies, Complete HPRT,Deficiencies, HGPRT,Deficiencies, Hypoxanthine Phosphoribosyltransferase,Deficiencies, Total HPRT,Deficiency Disease, Hypoxanthine Phosphoribosyl Transferase,Deficiency Diseases, Hypoxanthine-Phosphoribosyl-Transferase,Deficiency, Complete HPRT,Deficiency, HGPRT,Deficiency, Hypoxanthine Phosphoribosyltransferase,Deficiency, Total HPRT,Guanine Phosphoribosyltransferase Deficiencies,Guanine Phosphoribosyltransferase Deficiency,HGPRT Deficiencies,HPRT Deficiencies, Complete,HPRT Deficiencies, Total,HPRT Deficiency, Complete,HPRT Deficiency, Total,Hyperuricemia Syndrome, Juvenile,Hyperuricemia Syndrome, Primary,Hyperuricemia Syndromes, Juvenile,Hyperuricemia Syndromes, Primary,Hyperuricemia, X-Linked,Hyperuricemia, X-Linked Primary,Hyperuricemias, X-Linked,Hyperuricemias, X-Linked Primary,Hypoxanthine Phosphoribosyl Transferase Deficiency Disease,Hypoxanthine Phosphoribosyltransferase Deficiencies,Hypoxanthine-Phosphoribosyl-Transferase Deficiency Diseases,Juvenile Hyperuricemia Syndromes,Lesch Nyhan Disease,Lesch Nyhan Syndrome,Phosphoribosyltransferase Deficiencies, Guanine,Phosphoribosyltransferase Deficiencies, Hypoxanthine,Phosphoribosyltransferase Deficiency, Guanine,Phosphoribosyltransferase Deficiency, Hypoxanthine,Primary Hyperuricemia Syndromes,Primary Hyperuricemia, X-Linked,Primary Hyperuricemias, X-Linked,Self-Mutilation Syndrome, Choreoathetosis,Self-Mutilation Syndromes, Choreoathetosis,Syndrome, Choreoathetosis Self-Mutilation,Syndrome, Juvenile Hyperuricemia,Syndrome, Primary Hyperuricemia,Syndromes, Choreoathetosis Self-Mutilation,Syndromes, Juvenile Hyperuricemia,Syndromes, Primary Hyperuricemia,Total HPRT Deficiencies,Total Hypoxanthine Guanine Phosphoribosyl Transferase Deficiency,X Linked Hyperuricemia,X Linked Primary Hyperuricemia,X-Linked Hyperuricemias,X-Linked Primary Hyperuricemias
D008297 Male Males
D009154 Mutation Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations. Mutations
D010375 Pedigree The record of descent or ancestry, particularly of a particular condition or trait, indicating individual family members, their relationships, and their status with respect to the trait or condition. Family Tree,Genealogical Tree,Genealogic Tree,Genetic Identity,Identity, Genetic,Family Trees,Genealogic Trees,Genealogical Trees,Genetic Identities,Identities, Genetic,Tree, Family,Tree, Genealogic,Tree, Genealogical,Trees, Family,Trees, Genealogic,Trees, Genealogical
D004912 Erythrocytes Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN. Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012268 Ribose-Phosphate Pyrophosphokinase An enzyme that catalyzes the formation of phosphoribosyl pyrophosphate from ATP and ribose-5-phosphate. EC 2.7.6.1. PRPP Synthetase,Phosphoribosyl Pyrophosphate Synthetase,5-Phospho-alpha-D-Ribose 1-Diphosphate Synthetase,PRibPP Synthetase,Ribosephosphate Pyrophosphokinase,1-Diphosphate Synthetase, 5-Phospho-alpha-D-Ribose,5 Phospho alpha D Ribose 1 Diphosphate Synthetase,Pyrophosphate Synthetase, Phosphoribosyl,Pyrophosphokinase, Ribose-Phosphate,Pyrophosphokinase, Ribosephosphate,Ribose Phosphate Pyrophosphokinase,Synthetase, 5-Phospho-alpha-D-Ribose 1-Diphosphate,Synthetase, PRPP,Synthetase, Phosphoribosyl Pyrophosphate
D044466 Asian People Persons having origins in any of the Asian racial groups of the Far East, Southeast Asia, or the Indian subcontinent including, for example, Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand, and Vietnam. Note that OMB category ASIAN is available for United States population groups. Race and ethnicity terms, as used in the federal government, are self-identified social construct and may include terms outdated and offensive in MeSH to assist users who are interested in retrieving comprehensive search results for studies such as in longitudinal studies. Asian Continental Ancestry Group,Asian Person,Asiatic Race,Mongoloid Race,Asian Peoples,Asian Persons,Asiatic Races,Mongoloid Races,People, Asian,Person, Asian,Race, Asiatic,Race, Mongoloid

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