UNIT 1.5 Using the NCBI Map Viewer to Browse Genomic Sequence Data

  1. Tyra G. Wolfsberg

Published Online: 1 FEB 2003

DOI: 10.1002/0471250953.bi0105s00

Current Protocols in Bioinformatics

Current Protocols in Bioinformatics

How to Cite

Wolfsberg, T. G. 2003. Using the NCBI Map Viewer to Browse Genomic Sequence Data. Current Protocols in Bioinformatics. 1:1.5.

Author Information

  1. National Human Genome Research institute National Intstitute of Health, Bethesda, Maryland

Publication History

  1. Published Online: 1 FEB 2003
  2. Published Print: JAN 2003

This is not the most recent version of the article. View current version (1 MAR 2010)


This unit includes an introduction to the Map Viewer, which describes how to perform a simple text-based search of the genome to view the genomic context of a gene, navigate along the chromosome, zoom in and out, and change the displayed maps to hide and show information. It also describes some of NCBI's sequence-analysis tools, which are provided as links from the Map Viewer. The Alternate Protocols describe different ways to query the genome sequence, and also illustrate additional features of the Map Viewer. Alternate Protocol 1 shows how to perform and interpret the results of a BLAST search against the human genome. Alternate Protocol 2 demonstrates how to retrieve a list of all genes between two STS markers. Finally, Alternate Protocol 3 shows how to find all annotated members of a gene family.