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Characterization of the human PANK2 promoter.


ABSTRACT: Pantothenate kinase 2 (PANK2) is an essential regulatory enzyme in coenzyme A biosynthesis. PANK2 mutations cause pantothenate kinase-associated neurodegeneration (PKAN), which leads to pigmentary retinopathy, progressive dystonia and other abnormalities. Two nearly identical PANK2 isoforms have been described: short PANK2 and mature PANK2, which are processed from a precursor isoform. Since the biological relevance of these isoforms remains unclear, we sought to explore their transcriptional regulation. Here we show that their regulation is distinct and describe a promoter for the short isoform of PANK2. Moreover, we identify potential regulators of PANK2 expression, including NF-Y, FOXN4 and the human heterogeneous nuclear ribonucleoprotein A/B family. These findings validate expression of the short PANK2 isoform and enable predictions about potentially deleterious sequence variants in the regulatory region of this human disease gene.

SUBMITTER: Polster BJ 

PROVIDER: S-EPMC2949354 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature

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Characterization of the human PANK2 promoter.

Polster Brenda J BJ   Yoon Moon Y MY   Hayflick Susan J SJ  

Gene 20100711 1-2


Pantothenate kinase 2 (PANK2) is an essential regulatory enzyme in coenzyme A biosynthesis. PANK2 mutations cause pantothenate kinase-associated neurodegeneration (PKAN), which leads to pigmentary retinopathy, progressive dystonia and other abnormalities. Two nearly identical PANK2 isoforms have been described: short PANK2 and mature PANK2, which are processed from a precursor isoform. Since the biological relevance of these isoforms remains unclear, we sought to explore their transcriptional re  ...[more]

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