This tutorial serves as a basic introduction to finding sequence
information for the human genes associated with the genetic
disorders and traits listed on the Human Genome Landmarks
Poster. Since this tutorial is targeted to new users of NCBI's
sequence databases, only selected features and options available
from these resources will be addressed. For more information on
using NCBI's sequence databases see Entrez Help Document or the
Sample Contents of this tutorial: In this tutorial, we will be
using NCBI Entrez Nucleotides. This database contains sequence
data from GenBank, RefSeq, European Molecular Biology Laboratory
(EMBL), DNA DataBank of Japan (DDBJ), and Protein Data Bank.
GenBank is an NCBI database that serves as an archive for all
publicly available DNA sequences from more than 75,000
organisms. GenBank is part of the International Nucleotide
Sequence Database Collaboration, which also includes DDBJ and
EMBL. Sequence information is exchanged daily among these three
organizations. In addition to G