H5N4 Influenza A Virus Genomes: Codon Bias and Metadata

This dataset includes 54 complete H5N4 influenza A virus sequences, processed using local scripts.
Sequences were validated, aligned with MAFFT (--auto), and trimmed.
Per-sequence codon metrics (ENc, CAI for human/avian hosts, GC3, RSCU, CPB, PR2) were computed.
Year and country metadata were extracted from FASTA headers.
Package contains aligned FASTA, codon metrics CSV, QC reports, and analytical plots.
Processed by [e-mail]

本数据集收录54条完整的H5N4亚型甲型流感病毒序列，所有序列均通过本地脚本完成处理。序列首先经过有效性验证，随后使用MAFFT（--auto参数）进行多序列比对并完成序列修剪。研究人员计算了每条序列的密码子相关指标，包括有效密码子数（Effective Number of Codons, ENc）、针对人类与禽类宿主的密码子适应指数（Codon Adaptation Index, CAI）、密码子第三位碱基GC含量（GC3）、相对同义密码子使用度（Relative Synonymous Codon Usage, RSCU）、密码子配对偏倚（Codon Pair Bias, CPB）以及奇偶规则2（Parity Rule 2, PR2）。从FASTA文件头中提取了年份与国家相关的元数据。本数据集数据包包含比对后的FASTA格式文件、密码子指标逗号分隔值（Comma-Separated Values, CSV）文件、质量控制（Quality Control, QC）报告以及分析绘图结果。本数据集由[e-mail]完成处理。