{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T03:14:21Z","timestamp":1790824461094,"version":"4.1.0"},"reference-count":29,"publisher":"Oxford University Press (OUP)","issue":"22","license":[{"start":{"date-parts":[[2019,10,11]],"date-time":"2019-10-11T00:00:00Z","timestamp":1570752000000},"content-version":"vor","delay-in-days":1,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"DOI":"10.13039\/100007397","name":"Charles University","doi-asserted-by":"publisher","award":["PRIMUS\/17\/MED\/6"],"award-info":[{"award-number":["PRIMUS\/17\/MED\/6"]}],"id":[{"id":"10.13039\/100007397","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007397","name":"Charles University","doi-asserted-by":"publisher","award":["PROGRES Q26\/LF1"],"award-info":[{"award-number":["PROGRES Q26\/LF1"]}],"id":[{"id":"10.13039\/100007397","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007397","name":"Charles University","doi-asserted-by":"publisher","award":["UNCE\/MED\/007"],"award-info":[{"award-number":["UNCE\/MED\/007"]}],"id":[{"id":"10.13039\/100007397","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007397","name":"Charles University","doi-asserted-by":"publisher","award":["SVV 260367\/2017"],"award-info":[{"award-number":["SVV 260367\/2017"]}],"id":[{"id":"10.13039\/100007397","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Ministry of Health of Czech Republic","award":["NV19-07-00136"],"award-info":[{"award-number":["NV19-07-00136"]}]},{"name":"The National Center for Medical Genomics","award":["LM2015091"],"award-info":[{"award-number":["LM2015091"]}]},{"name":"National Sustainability Programme II","award":["LQ1604"],"award-info":[{"award-number":["LQ1604"]}]},{"name":"National infrastructure for chemical biology","award":["LM2015063"],"award-info":[{"award-number":["LM2015063"]}]},{"name":"Agence Nationale de la Recherche, \u2018Investissements d\u2019avenir\u2019","award":["ANR-10-IAHU-01"],"award-info":[{"award-number":["ANR-10-IAHU-01"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,11,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>We report for the first time an autosomal recessive inborn error of de novo purine synthesis (DNPS)\u2014PAICS deficiency. We investigated two siblings from the Faroe Islands born with multiple malformations resulting in early neonatal death. Genetic analysis of affected individuals revealed a homozygous missense mutation in PAICS (c.158A&amp;gt;G; p.Lys53Arg) that affects the structure of the catalytic site of the bifunctional enzyme phosphoribosylaminoimidazole carboxylase (AIRC, EC 4.1.1.21)\/phosphoribosylaminoimidazole succinocarboxamide synthetase (SAICARS, EC 6.3.2.6) (PAICS). The mutation reduced the catalytic activity of PAICS in heterozygous carrier and patient skin fibroblasts to approximately 50 and 10% of control levels, respectively. The catalytic activity of the corresponding recombinant enzyme protein carrying the mutation p.Lys53Arg expressed and purified from E. coli was reduced to approximately 25% of the wild-type enzyme. Similar to other two known DNPS defects\u2014adenylosuccinate lyase deficiency and AICA-ribosiduria\u2014the PAICS mutation prevented purinosome formation in the patient\u2019s skin fibroblasts, and this phenotype was corrected by transfection with the wild-type but not the mutated PAICS. Although aminoimidazole ribotide (AIR) and aminoimidazole riboside (AIr), the enzyme substrates that are predicted to accumulate in PAICS deficiency, were not detected in patient\u2019s fibroblasts, the cytotoxic effect of AIr on various cell lines was demonstrated. PAICS deficiency is a newly described disease that enhances our understanding of the DNPS pathway and should be considered in the diagnosis of families with recurrent spontaneous abortion or early neonatal death.<\/jats:p>","DOI":"10.1093\/hmg\/ddz237","type":"journal-article","created":{"date-parts":[[2019,10,1]],"date-time":"2019-10-01T15:24:29Z","timestamp":1569943469000},"page":"3805-3814","source":"Crossref","is-referenced-by-count":35,"title":["PAICS deficiency, a new defect of de novo purine synthesis resulting in multiple congenital anomalies and fatal outcome"],"prefix":"10.1093","volume":"28","author":[{"given":"Anna","family":"Pelet","sequence":"first","affiliation":[{"name":"Laboratory Embryology and Genetics of Congenital Malformation, INSERM UMR1163, Imagine Institute, Universit\u00e9 de Paris, F-75015 Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vaclava","family":"Skopova","sequence":"additional","affiliation":[{"name":"Research Unit for Rare Diseases, Department of Paediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital, 12808 Prague, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ulrike","family":"Steuerwald","sequence":"additional","affiliation":[{"name":"Pediatric Unit, Medical Department, The Faroese Hospital System, FO 100 T\u00f3rshavn, Faroe Islands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Veronika","family":"Baresova","sequence":"additional","affiliation":[{"name":"Research Unit for Rare Diseases, Department of Paediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital, 12808 Prague, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammed","family":"Zarhrate","sequence":"additional","affiliation":[{"name":"Laboratory Embryology and Genetics of Congenital Malformation, INSERM UMR1163, Imagine Institute, 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Hospital System, FO 100 T\u00f3rshavn, Faroe Islands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Sedlak","sequence":"additional","affiliation":[{"name":"CZ-OPENSCREEN, Institute of Molecular Genetics, Czech Academy of Sciences, 140 00 Prague, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anthony J","family":"Bleyer","sequence":"additional","affiliation":[{"name":"Research Unit for Rare Diseases, Department of Paediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital, 12808 Prague, Czech Republic"},{"name":"Section on Nephrology, Wake Forest School of Medicine, 271 03 Winston-Salem, NC, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stanislav","family":"Kmoch","sequence":"additional","affiliation":[{"name":"Research Unit for Rare Diseases, Department of Paediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and 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