Open AccessNovel PKLR missense mutation (A300P) causing pyruvate kinase deficiency in an Omani Kindred—PK deficiency masquerading as congenital dyserythropoietic anemia
Author(s) -
Fawaz Naglaa,
Beshlawi Ismail,
Alqasim Alauldeen,
Zachariah Mathew,
Russo Roberta,
Andolfo Immacolata,
Gambale Antonella,
Pathare Anil,
Iolascon Achille
Publication year - 2022
Publication title -
clinical case reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 9
ISSN - 2050-0904
DOI - 10.1002/ccr3.5315
Subject(s) - pyruvate kinase deficiency , missense mutation , medicine , mutation , hemolytic anemia , pyruvate kinase , anemia , gene , immunology , genetics , biology , glycolysis , metabolism
Abstract We report herein a child with transfusion‐dependent chronic anemia, the cause of which was difficult to establish because of his transfusion dependency. The clinical and laboratory features suggested a chronic nonspherocytic hemolytic anemia (CNSHA) with bone marrow features suggestive of congenital dyserythropoietic anemia (CDA). DNA studies, however, revealed the underlying condition to be due to a novel mutation in the PKLR gene responsible for pyruvate kinase deficiency (PKD). Molecular investigations by a targeted next‐generation sequencing (t‐NGS) using a custom panel of 71 genes involved in the red blood cell (RBC) disorders revealed that the patient was homozygous for a novel missense mutation c.898G>C, p.Ala300Pro, whereas both his parents were heterozygous for the same mutation.