Use CAS Registry BLAST (Basic Local Alignment Search Tool) to find sequences of interest from patent, journal, and GenBank® sources. You can then:
Import CAS Registry Numbers®, and then use STNext tools and command language to locate substance and bibliographic records.
Create BLAST Alignment Reports to review sequence alignment and score matching details, along with bibliographic and substance information.
Note: Confirm with your administrator that you have installation privileges on your machine.
For more information about how to search using CAS Registry BLAST, visit http://www.cas.org/help/expressblast/expblast.htm.
STN has some general command length limits, and also some specific query length limits for Sequence Code Match (SCM) sequence searching and similarity searching. It is important to note that some of them are not the same in CAS REGISTRY and DGENE, USGENE and PCTGEN.
Limit of 256 characters for a SCM search at the command prompt: SQEP, SQEFP, SQSFP, SQEN, SQSN. Longer sequences get a command interrupted message.
It is possible to perform an SCM search with longer queries in REGISTRY by using concatenation.
Limit of 50,000 characters for all 5 search modes (BLASTn, BLASTx, tBLASTx, BLASTp, and tBLASTn).
CAS recognizes that sequence queries submitted for BLAST searching and search results are valuable intellectual property. To safeguard this information, CAS Registry BLAST uses 128-bit SSL encryption, the standard for financial transactions and other applications requiring a high level of security.
For price information for CAS Registry BLAST, enter HELP COST at an arrow prompt when you are in the REGISTRY file.
GenBank® is a registered trademark of the U.S. Department of Health and Human Services for the Genetic Sequence Data Bank.
BLAST® is a registered trademark of the National Library of Medicine.
BLAST® reference information provided in whole or in part from the National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health.