---
name: "systematic-mutations"
section: "1"
platform: "linux"
package: "ncbi-entrez-direct"
version: "24.0.20250523+dfsg-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/systematic-mutations"
---

# systematic-mutations(1)

print all single-nucleotide substitutions

## NAME

systematic-mutations - print all single-nucleotide substitutions

## SYNOPSIS

**systematic-mutations**

## DESCRIPTION

**systematic-mutations** reads single-line DNA sequences from standard input and writes them to standard output accompanied by the results of all possible single-base substitutions thereto. If an input line contains any whitespace, the remainder of the line is taken to be a label, which then appears at the end of all corresponding output lines, albeit delimited by a colon (**:**) there.

## SEE ALSO

[**disambiguate-nucleotides**(1)](/disambiguate-nucleotides/1.md), [**transmute**(1)](/transmute/1.md).