Evolution of the NS genes of the influenza A viruses. II. Characteristics of the amino acid changes in the NS1 proteins of the influenza A viruses.

doi:10.1007/BF00308562

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Article

Evolution of the NS genes of the influenza A viruses. II. Characteristics of the amino acid changes in the NS1 proteins of the influenza A viruses.

Virus genes - 1 Jun 1990

Nakajima K, Nobusawa E, Nakajima S

Abstract excerpt

We compared the amino acid sequences of the NS1 proteins of human, equine, and avian influenza viruses. The ratios of the amino acid substitutions per nucleotide substitutions in the NS1 proteins were about 27-45%, suggesting the existence of constraints on the amino acid changes of the NS1 protein in evolution. As a measure of constraints exerted on the regions of a protein, a changeability index is proposed....

Topics

Amino Acid Sequence
Animals
Base Sequence
Biological Evolution
Birds
Capsid
Chimera
Cytoplasm
DNA, Viral
Fluorescent Antibody Technique
Genes, Viral

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Horses

Influenza A virus

Molecular Sequence Data

Mutation

Structure-Activity Relationship

Viral Core Proteins

Viral Nonstructural Proteins

Source

Open in PubMed

Identifiers

PMID: 2144065
DOI: 10.1007/BF00308562

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 29 Aug 2026. Prepared record publication-2144065-2026-08-29.1. Manifest publication-graph-cohort-2026-08-29.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 29 Aug 2026.

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