Introduction: In addition to TA, other CP mutations, notably C1653T, T1674C/G, C1766T, T1753V and T1768A, have also been reported to be associated with an increased risk of HCC.
Enhanced pregenomic RNA levels and lowered precore mRNA transcription efficiency in a genotype A hepatitis B virus genome with C1766T and T1768A mutations obtained from a fulminant hepatitis patient.
PMID: 27473751
2016
The Journal of general virology
Abstract: The present study demonstrates that the C1766T/T1768A mutations in the BCP region of genotype A HBV enhance viral replication, downregulate HBeAg expression and are responsible for the predominant localization of the core protein in the cytoplasm, which are likely associated with the development of fulminant hepatitis.
Abstract: We recently found four unique mutations [G to A at nucleotide 1742 (G1742A), C1766T, T1768A and T1809C] in the basal core promoter (BCP) region of a genotype A hepatitis B vi
HBx mutations promote hepatoma cell migration through the Wnt/beta-catenin signaling pathway.
Abstract: HBx mutations (T1753V, A1762T, G1764A, and T1768A) are frequently observed in hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC).
Introduction: A1762T/G1764A (TA) mutations in the core promoter, which overlap with the HBx gene, are found commonly in HCC and are independent risk factors for the progression of HCC during chronic HBV infection.12 In vivo studies
Enhanced pregenomic RNA levels and lowered precore mRNA transcription efficiency in a genotype A hepatitis B virus genome with C1766T and T1768A mutations obtained from a fulminant hepatitis patient.
PMID: 27165167
2016
Clinical journal of gastroenterology
Abstract: Here, we present a case of fatal fulminant hepatitis caused by infection with subgenotype A1 hepatitis B virus with C1766T/T1768A double mutations in the core promoter region.
Phosphatase and tensin homologue genetic polymorphisms and their interactions with viral mutations on the risk of hepatocellular carcinoma.
Introduction: We and others have reported that HBV mutations C1653T, T1753V, A1762T/G1764A, T1674C/G, and C1766T/T1768A in the enhancer II/basal core promoter (EnhII/BCP) region; G1899A, C2002T, A2159G, A2189C, and G2203A/T in the precore/core region; as well as T53C, PMID: 26571502
2015
PloS one
Result: It is noteworthy, that the C69stop codon mutation in the surface gene, the C1766T /T1768A mutation in the basal core promoter and the H94Y mutation in the x gene were found only in chronic patients.
Result: The C1766T/T1768A double mutation was however detectable in only chronic infection (2%).
Discussion: Among them the C69stop codon mutation in the surface gene, the C1766T /T1768A mutation in the basal core promoter and the
Associations between hepatitis B virus basal core promoter/pre-core region mutations and the risk of acute-on-chronic liver failure: a meta-analysis.
Abstract: CONCLUSIONS: The HBV basal core promoter/pre-core mutations T1753V, A1762T, G1764A, C1766T, T1768A, A1846T, G1896A and G1899A, and an HBeAg-negative status correlate with an increased risk of HBV-ACLF.
Abstract: Several mutations were significantly correlated with ACLF: T1753V (1.889, 95 % confidence interval (CI) [1.357-2.631]), A1762T (2.696 [2.265-3.207]), precore mRNA transcription efficiency in a genotype A hepatitis B virus genome with C1766T and T1768A mutations obtained from a fulminant hepatitis patient.
PMID: 25567052
2015
Digestive diseases and sciences
Abstract: METHODS: A HBx combination (combo) mutant with changes in the CP region that corresponded to A1762T/G1764A (TA), T1753A, and T1768A was constructed and expressed in L-02 and Hep3B cells.
S gene mutants occurrence among hepatitis B carriers in malaysia.
Abstract: Additionally, several mutations were found in the BCP region with the following incidence rate; C1653 T (8.6%), A1752 G (10.8%),1762 AGG--TGA 1764 (26.9%), C1766T(2.2%),T1768 A (10.8%), C1858 T (64.5%), G1896 A (25.8%).
Novel natural mutations in the hepatitis B virus reverse transcriptase domain associated with hepatocellular carcinoma.
Introduction: Over the past few years, we defined that a high prevalence of the HBV C1 genotype, pre-S deletion and pre-S2 start codon mutation, C1653T, T1753A/G, C1766T, and T1768A mutations in the BCP/EnhII region, and A2159G, A2189C, and G2203W in the core gene are associated with HCC in Qidong.
HBV mutation literature information.
PMID: 
2016
Scientific reports
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