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Novel mutation in a Chinese patient with progressive familial intrahepatic cholestasis type 3.


ABSTRACT: Genotyping is conclusive for the diagnosis of progressive familial intrahepatic cholestasis type 3 (PFIC3). Here we report a Chinese patient of PFIC3 with compound mutations in the ABCB4 gene. Liver biopsy was performed on a 17-year-old male patient with intrahepatic cholestasis of unknown etiology. Liver histology findings are indicative of intrahepatic cholestasis with extensive fibrosis. Genotyping revealed c.175C>T (p.L59L) mutation in exon 4, c.504C>T (p.N168N) mutation in exon 6, c.711A>T (p.I237I) mutation in exon 8, c.874A>T (p.K292X) in exon 9 and a novel mutation, c.1804G>T (p.G602W) in exon 15. Based on these findings, the patient was diagnosed with PFIC3. The novel mutation p.G602W in exon 15 was predicted as probably damaging by PolyPhen-2 with a score of 0.986 (sensitivity: 0.54; specificity: 0.94) and was predicted to affect protein function with a SIFT score of 0.01.

SUBMITTER: Sun HZ 

PROVIDER: S-EPMC4292307 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature

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Novel mutation in a Chinese patient with progressive familial intrahepatic cholestasis type 3.

Sun Hao-Zhe HZ   Shi Hong H   Zhang Shun-Cai SC   Shen Xi-Zhong XZ  

World journal of gastroenterology 20150101 2


Genotyping is conclusive for the diagnosis of progressive familial intrahepatic cholestasis type 3 (PFIC3). Here we report a Chinese patient of PFIC3 with compound mutations in the ABCB4 gene. Liver biopsy was performed on a 17-year-old male patient with intrahepatic cholestasis of unknown etiology. Liver histology findings are indicative of intrahepatic cholestasis with extensive fibrosis. Genotyping revealed c.175C>T (p.L59L) mutation in exon 4, c.504C>T (p.N168N) mutation in exon 6, c.711A>T  ...[more]

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