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Progressive symmetric erythrokeratodermia (PSEK) is characterized by symmetric and growing erythematous hyperkeratotic patches over the body shortly after birth, particularly trunk and limbs, the buttocks, and the face, sometimes together with palmoplantar keratoderma (PPK). The GJB2, GJB3, GJB4, GJB6, ARS (Component B), and LOR gene mutation might contribute to PSEK manifestation. This study aimed to identify sequence alteration of these genes in a Chinese PSEK patient with pseudoainhum. Genomic DNA was purified from the patient's peripheral blood. Mutation analysis of target genes was performed by direct sequencing using ABI 3730 sequencer No exonic mutations was identified in the aforementioned genes. The result underlines the genetic heterogeneity of PSEK and other related erythrokeratodermas. © 2014 The International Society of Dermatology.


Fusheng Zhou, Hongyang Fu, Linghua Liu, Yong Cui, Zhengzhong Zhang, Ruixue Chang, Zhen Yue, Sen Yang, Xuejun Zhang. No exonic mutations at GJB2, GJB3, GJB4, GJB6, ARS (Component B), and LOR genes responsible for a Chinese patient affected by progressive symmetric erythrokeratodermia with pseudoainhum. International journal of dermatology. 2014 Sep;53(9):1111-3

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PMID: 24962725

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