megaptera (version 1.0-0)

NCBIeaa: NCBI Extended Amino Acid

Description

This table provides a key to the Extended IUPAC Encoding of Amino Acids defined by NCBI.

Usage

data(NCBIeaa)

Format

A data frame with 28 observations on the following 4 variables:

Value

NCBI code

Symbol

One-letter abreviation of amino acids

Symbol3

Three-letter abreviation of amino acids

Name

Amino acids

Source

http://www.ncbi.nlm.nih.gov/books/NBK7198/#ch_datamod.datamodel.seqloc

Details

The official IUPAC amino acid code has some limitations. One is the lack of symbols for termination, gap, or selenocysteine. Such extensions to the IUPAC codes are also commonly used by sequence analysis software. NCBI has created such a code which is simply the IUPACaa code above extended with the additional symbols.

References

http://www.ncbi.nlm.nih.gov/books/NBK7198/#ch_datamod.datamodel.seqloc

Examples

data(NCBIeaa)