HBV Mutation Detail Information

Virus Mutation HBV Mutation C2875A


Basic Characteristics of Mutations
Mutation Site C2875A
Mutation Site Sentence Fig. 5B
Mutation Level Nucleotide level
Mutation Type Nonsynonymous substitution
Gene/Protein/Region P
Standardized Encoding Gene P  
Genotype/Subtype C
Viral Reference LC519798.1;LC500247.1;LC365290.1;LC519793.1;LC513651.1;LT935665.1;AB064310.1;AB846650.1
Functional Impact and Mechanisms
Disease Liver Cirrhosis     Carcinoma, Hepatocellular    
Immune -
Target Gene -
Clinical and Epidemiological Correlations
Clinical Information -
Treatment -
Location China
Literature Information
PMID 33947693
Title The Landscape of Cell-Free HBV Integrations and Mutations in Cirrhosis and Hepatocellular Carcinoma Patients
Author Zheng B,Liu XL,Fan R,Bai J,Wen H,Du LT,Jiang GQ,Wang CY,Fan XT,Ye YN,Qian YS,Wang YC,Liu GJ,Deng GH,Shen F,Hu HP,Wang H,Zhang QZ,Ru LL,Zhang J,Gao YH,Xia J,Yan HD,Liang MF,Yu YL,Sun FM,Gao YJ,Sun J,Zhong CX,Wang Y,Kong F,Chen JM,Zheng D,Yang Y,Wang CX,Wu L,Hou JL,Liu JF,Wang HY,Chen L
Journal Clinical cancer research : an official journal of the American Association for Cancer Research
Journal Info 2021 Jul 1;27(13):3772-3783
Abstract PURPOSE: Intratumoral hepatitis B virus (HBV) integrations and mutations are related to hepatocellular carcinoma (HCC) progression. Circulating cell-free DNA (cfDNA) has shown itself as a powerful noninvasive biomarker for cancer. However, the HBV integration and mutation landscape on cfDNA remains unclear. EXPERIMENTAL DESIGN: A cSMART (Circulating Single-Molecule Amplification and Resequencing Technology)-based method (SIM) was developed to simultaneously investigate HBV integration and mutation landscapes on cfDNA with HBV-specific primers covering the whole HBV genome. Patients with HCC (n = 481) and liver cirrhosis (LC; n = 517) were recruited in the study. RESULTS: A total of 6,861 integration breakpoints including TERT and KMT2B were discovered in HCC cfDNA, more than in LC. The concentration of circulating tumor DNA (ctDNA) was positively correlated with the detection rate of these integration hotspots and total HBV integration events in cfDNA. To track the origin of HBV integrations in cfDNA, whole-genome sequencing (WGS) was performed on their paired tumor tissues. The paired comparison of WGS data from tumor tissues and SIM data from cfDNA confirmed most recurrent integration events in cfDNA originated from tumor tissue. The mutational landscape across the whole HBV genome was first generated for both HBV genotype C and B. A region from nt1100 to nt1500 containing multiple HCC risk mutation sites (OR > 1) was identified as a potential HCC-related mutational hot zone. CONCLUSIONS: Our study provides an in-depth delineation of HBV integration/mutation landscapes at cfDNA level and did a comparative analysis with their paired tissues. These findings shed light on the possibilities of noninvasive detection of virus insertion/mutation.
Sequence Data -
Mutation Information
Note
Basic Characteristics of Mutations
  • Mutation Site: The specific location in a gene or protein sequence where a change occurs.
  • Mutation Level: The level at which a mutation occurs, including the nucleotide or amino acid level.
  • Mutation Type: The nature of the mutation, such as missense mutation, nonsense mutation, synonymous mutation, etc.
  • Gene/Protein/Region: Refers to the specific region of the virus where the mutation occurs. Including viral genes, viral proteins, or a specific viral genome region. If the article does not specifically indicate the relationship between the mutation and its correspondence, the main
  • Gene/Protein/Region studied in the article is marked.
  • Genotype/Subtype: Refers to the viral genotype or subtype where the mutation occurs. If the article does not specifically indicate the relationship between the mutation and its correspondence, the main Genotype/Subtype studied in the article is marked.
  • Viral Reference: Refers to the standard virus strain used to compare and analyze viral sequences.
Functional Impact and Mechanisms
  • Disease: An abnormal physiological state with specific symptoms and signs caused by viral infection.
  • Immune: The article focuses on the study of mutations and immune.
  • Target Gene: Host genes that viral mutations may affect.
Clinical and Epidemiological Correlations
  • Clinical Information: The study is a clinical or epidemiological study and provides basic information about the population.
  • Treatment: The study mentioned a certain treatment method, such as drug resistance caused by mutations. If the study does not specifically indicate the relationship between mutations and their correspondence treatment, the main treatment studied in the article is marked.
  • Location: The source of the research data.
Literature Information
  • Sequence Data: The study provides the data accession number.