Genotype C of hepatitis B virus can be classified into at least two subgroups. 2004

Tran Thien-Tuan Huy, and Hiroshi Ushijima, and Vo Xuan Quang, and Khin Maung Win, and Pairoj Luengrojanakul, and Kaoru Kikuchi, and Tetsutaro Sata, and Kenji Abe
Department of Gastroentero-Hepatology, Cho Ray Hospital, Ho Chi Minh City, Vietnam.

A genomic characterization of hepatitis B virus (HBV) was done for 56 pre-S1/pre-S2 genes and 10 full-length HBV genotype C isolates from five Asian countries. Phylogenetic analysis of the pre-S1/pre-S2 genes revealed two major groups within genotype C: one for isolates from southeast Asia including Vietnam, Myanmar and Thailand (named HBV/C1) and the other for isolates from Far East Asia including Japan, Korea and China (named HBV/C2). This finding was confirmed by phylogenetic analysis based on the full-length sequence of 32 HBV genotype C isolates, including 22 from database entries. Two isolates from Okinawa, the island off the southern end of Japan, formed a different branch. Specific amino acid sequence changes were identified in the large S protein (amino acids 51, 54, 60, 62 and 73) and P protein (amino acids 231, 233, 236, 248, 252 and 304). Our results indicate that genotype C of HBV can be classified into at least two subgroups.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D010802 Phylogeny The relationships of groups of organisms as reflected by their genetic makeup. Community Phylogenetics,Molecular Phylogenetics,Phylogenetic Analyses,Phylogenetic Analysis,Phylogenetic Clustering,Phylogenetic Comparative Analysis,Phylogenetic Comparative Methods,Phylogenetic Distance,Phylogenetic Generalized Least Squares,Phylogenetic Groups,Phylogenetic Incongruence,Phylogenetic Inference,Phylogenetic Networks,Phylogenetic Reconstruction,Phylogenetic Relatedness,Phylogenetic Relationships,Phylogenetic Signal,Phylogenetic Structure,Phylogenetic Tree,Phylogenetic Trees,Phylogenomics,Analyse, Phylogenetic,Analysis, Phylogenetic,Analysis, Phylogenetic Comparative,Clustering, Phylogenetic,Community Phylogenetic,Comparative Analysis, Phylogenetic,Comparative Method, Phylogenetic,Distance, Phylogenetic,Group, Phylogenetic,Incongruence, Phylogenetic,Inference, Phylogenetic,Method, Phylogenetic Comparative,Molecular Phylogenetic,Network, Phylogenetic,Phylogenetic Analyse,Phylogenetic Clusterings,Phylogenetic Comparative Analyses,Phylogenetic Comparative Method,Phylogenetic Distances,Phylogenetic Group,Phylogenetic Incongruences,Phylogenetic Inferences,Phylogenetic Network,Phylogenetic Reconstructions,Phylogenetic Relatednesses,Phylogenetic Relationship,Phylogenetic Signals,Phylogenetic Structures,Phylogenetic, Community,Phylogenetic, Molecular,Phylogenies,Phylogenomic,Reconstruction, Phylogenetic,Relatedness, Phylogenetic,Relationship, Phylogenetic,Signal, Phylogenetic,Structure, Phylogenetic,Tree, Phylogenetic
D005814 Genes, Viral The functional hereditary units of VIRUSES. Viral Genes,Gene, Viral,Viral Gene
D006515 Hepatitis B virus The type species of the genus ORTHOHEPADNAVIRUS which causes human HEPATITIS B and is also apparently a causal agent in human HEPATOCELLULAR CARCINOMA. The Dane particle is an intact hepatitis virion, named after its discoverer. Non-infectious spherical and tubular particles are also seen in the serum. Dane Particle,Hepatitis Virus, Homologous Serum,B virus, Hepatitis,Hepatitis B viruses,Particle, Dane,viruses, Hepatitis B
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001208 Asia The largest of the continents. It was known to the Romans more specifically as what we know today as Asia Minor. The name comes from at least two possible sources: from the Assyrian asu (to rise) or from the Sanskrit usa (dawn), both with reference to its being the land of the rising sun, i.e., eastern as opposed to Europe, to the west. (From Webster's New Geographical Dictionary, 1988, p82 & Room, Brewer's Dictionary of Names, 1992, p34)
D014759 Viral Envelope Proteins Integral membrane proteins that are incorporated into the VIRAL ENVELOPE. They are glycosylated during VIRAL ASSEMBLY. Envelope Proteins, Viral,Viral Envelope Glycoproteins,Viral Envelope Protein,Virus Envelope Protein,Virus Peplomer Proteins,Bovine Leukemia Virus Glycoprotein gp51,Hepatitis Virus (MHV) Glycoprotein E2,LaCrosse Virus Envelope Glycoprotein G1,Simian Sarcoma Virus Glycoprotein 70,Viral Envelope Glycoprotein gPr90 (Murine Leukemia Virus),Viral Envelope Glycoprotein gp55 (Friend Virus),Viral Envelope Proteins E1,Viral Envelope Proteins E2,Viral Envelope Proteins gp52,Viral Envelope Proteins gp70,Virus Envelope Proteins,Envelope Glycoproteins, Viral,Envelope Protein, Viral,Envelope Protein, Virus,Envelope Proteins, Virus,Glycoproteins, Viral Envelope,Peplomer Proteins, Virus,Protein, Viral Envelope,Protein, Virus Envelope,Proteins, Viral Envelope,Proteins, Virus Envelope,Proteins, Virus Peplomer
D015684 Gene Products, pol Retroviral proteins coded by the pol gene. They are usually synthesized as a protein precursor (POLYPROTEINS) and later cleaved into final products that include reverse transcriptase, endonuclease/integrase, and viral protease. Sometimes they are synthesized as a gag-pol fusion protein (FUSION PROTEINS, GAG-POL). Pol is short for polymerase, the enzyme class of reverse transcriptase. pol Gene Products,pol Polyproteins,pol Protein,Gene Product, pol,pol Polyprotein,Polyprotein, pol,Polyproteins, pol,Protein, pol,pol Gene Product
D030541 Databases, Genetic Databases devoted to knowledge about specific genes and gene products. Genetic Databases,Genetic Sequence Databases,OMIM,Online Mendelian Inheritance In Man,Genetic Data Banks,Genetic Data Bases,Genetic Databanks,Genetic Information Databases,Bank, Genetic Data,Banks, Genetic Data,Data Bank, Genetic,Data Banks, Genetic,Data Base, Genetic,Data Bases, Genetic,Databank, Genetic,Databanks, Genetic,Database, Genetic,Database, Genetic Information,Database, Genetic Sequence,Databases, Genetic Information,Databases, Genetic Sequence,Genetic Data Bank,Genetic Data Base,Genetic Databank,Genetic Database,Genetic Information Database,Genetic Sequence Database,Information Database, Genetic,Information Databases, Genetic,Sequence Database, Genetic,Sequence Databases, Genetic

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