ST.26 Sequence Listing

We List, You Invent

WIPO has rolled out its latest sequence listing standard – ST.26 – to improve data searching and transfer for patent offices, applicants and inventors.

“ST.26” refers to an international standard that outlines how nucleotide and amino acid sequences are to be displayed in a sequence listing using an XML format. It was adopted in October 2021 and came into effect on July 1, 2022.

A single file in XML 1.0 format, encoded with Unicode UTF-8, must be used to present an ST.26 sequence listing.

An ST.26 sequence listing in XML format consists of two basic sections:

A general information section that contains the application’s bibliographic information, including the applicant’s name, the inventor’s name, the application number, the date of application filing, the invention title, and the earliest priority application.
A sequence data part that contains one or more sequences as well as every feature identifying those sequences.

Database for ST.26 - WIPO Sequence

WIPO Sequence Suite was built in partnership with patent offices worldwide to make it easier to create, verify, and author ST.26-compliant sequence listings.
It allows users to input data from ST.25 sequence listings, ST.26 sequence listings projects, multi-sequence format files, and other types of files.
The software can also validate sequence listings in XML format.