{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T12:18:22Z","timestamp":1771503502544,"version":"3.50.1"},"reference-count":22,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2014,11,24]],"date-time":"2014-11-24T00:00:00Z","timestamp":1416787200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American J Hematol"],"published-print":{"date-parts":[[2015,3]]},"abstract":"<jats:p>In a family with mild dominant spherocytosis, affected members showed partial band 3 deficiency. The index patient showed more severe clinical symptoms than his relatives, and his red blood cells displayed concomitant low pyruvate kinase activity. We investigated the contribution of partial PK deficiency to the phenotypic expression of mutant band 3 in this family. Pyruvate kinase deficiency and band 3 deficiency were characterized by DNA analysis. Results of red cell osmotic fragility testing, the results of cell deformability obtained by the Automated Rheoscope and Cell Analyzer and the results obtained by Osmotic Gradient Ektacytometry, which is a combination of these tests, were related to the red cell ATP content. Spherocytosis in this family was due to a novel heterozygous mutation in <jats:italic>SLC4A1,<\/jats:italic> the gene for band 3. Reduced PK activity of the index patient was attributed to a novel mutation in <jats:italic>PKLR<\/jats:italic> inherited from his mother, who was without clinical symptoms. Partial PK deficiency was associated with decreased red cell ATP content and markedly increased osmotic fragility. This suggests an aggravating effect of low ATP levels on the phenotypic expression of band 3 deficiency. Am. J. Hematol. 90:E35\u2013E39, 2015. \u00a9 2014 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/ajh.23899","type":"journal-article","created":{"date-parts":[[2014,11,12]],"date-time":"2014-11-12T08:23:01Z","timestamp":1415780581000},"source":"Crossref","is-referenced-by-count":26,"title":["Partial pyruvate kinase deficiency aggravates the phenotypic expression of band 3 deficiency in a family with hereditary spherocytosis"],"prefix":"10.1002","volume":"90","author":[{"given":"Rob","family":"van Zwieten","sequence":"first","affiliation":[{"name":"Laboratory of Red Blood Cell Diagnostics Department of Blood Cell Research Sanquin Blood Supply Foundation Amsterdam The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brigitte A.","family":"van Oirschot","sequence":"additional","affiliation":[{"name":"Laboratory for Red Blood Cell Research Department of Clinical Chemistry and Haematology University Medical Center Utrecht Utrecht The 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