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Updated: May 2, 2026

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
Cobalamin C defect: a patient of late-onset type with homozygous p.R132* mutation
Mustafa Kılıç1, Rıza Köksal Özgül, Ali Dursun
1Division of Hacettepe University Faculty of Medicine, Ankara, Turkey, and 3University Children's Hospital, Basel, Switzerland. kilickorkmaz@yahoo.com.tr.
Abstract:
Methylmalonic aciduria and homocystinuria, cobalamin C (cblC) type, is the most frequent inborn error of vitamin B12metabolism. The clinical phenotype includes systemic symptoms and neurological decompensation. Affected patients can be divided into two broad groups, as early-onset and late-onset. We present a Turkish patient who had neurological impairment at the age of four years as presented with late-onset cblC defect. Homozygous c.394C
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