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The NCBI Handbook
An online guide to the use of NCBI resources. Titles of selected chapters that refer to human genome resources are shown below.


View PDF   The Single Nucleotide Polymorphism Database (dbSNP) of Nucleotide Sequence Variation
Adrienne Kitts and Stephen Sherry

View PDF   Online Mendelian Inheritance in Man (OMIM): A Directory of Human Genes and Genetic Disorders
Donna Maglott, Joanna S. Amberger, and Ada Hamosh

View PDF   The SKY/CGH Database for Spectral Karyotyping and Comparative Genomic Hybridization Data
Turid Knutsen, Vasuki Gobu, Rodger Knaus, Thomas Ried, and Karl Sirotkin

View PDF   Genome Assembly and Annotation Process
Paul Kitts

View PDF  The Reference Sequence (RefSeq) Project
Kim D. Pruitt, Tatiana Tatusova, and James M. Ostell

View PDF   LocusLink: A Directory of Genes
Donna Maglott

View PDF   Using the Map Viewer to Explore Genomes
Susan M. Dombrowski and Donna Maglott

View PDF   UniGene: A Unified View of the Transcriptome
Joan U. Pontius, Lukas Wagner, and Gregory D. Schuler

View PDF   Exercises: Using Map Viewer
David Wheeler, Kim Pruitt, Donna Maglott, Susan Dombrowski, and Andrei Gabrelian
Frequently Asked Questions
  What is a reference sequence?
  How are gene symbols chosen for LocusLink and RefSeq?
  How many inherited diseases have a known sequence?
  How is the human genome assembled and annotated?
  How can I customize the Map Viewer display?
  What classes of genetic variation are included in dbSNP?
  How can I deposit gene expression data in a public database?

A challenge facing researchers today is that of piecing together and analyzing the plethora of data currently being generated through the Human Genome Project and scores of smaller projects. NCBI's Web site serves an an integrated, one-stop, genomic information infrastructure for biomedical researchers from around the world so that they may use these data in their research efforts. More...



OMIM
A guide to human genes and inherited disorders maintained by Johns Hopkins University and collaborators.

RefSeq
Reference sequences of chromosomes, genomic contigs, mRNAs, and proteins for human and major model organisms.

dbSNP
A database of single nucleotide polymorphisms (SNPs) and other nucleotide variations.

  Gene Database
A new database of genes and associated information is now available for searching in Entrez.
Search Genes
from   
with words

Locus Link
A comprehensive catalog of genes and other genetic loci.


Download DNA sequence
Fifty years after the double helix, the reference DNA sequence of Homo sapiens is now available for downloading.
BLAST the Genome
Compare your sequence to the genomic sequence and its products.

Clone Registry
A centralized registry of genomic clones, end-sequences, mapping data, and distributor information.


Map Viewer
An interactive viewer of physical and genetic maps, genomic sequence, genes, and other genomic annotations.

Physical Maps
Whitehead YAC/RH Map

Hudson et al., 1995
Stanford G3 RH Map

Stewart et al., 1997
Gene Map'99
Deloukas et al., 1998
Stanford TNG RH Map
Olivier et al., 2001
UniSTS
A non-redundant  collection of STSs with links to maps and sequence.

Electronic PCR
Check your sequence for STSs and view in genomic context.

Genetic Maps
Genethon Map

Dib et al., 1996
Marshfield Map

Broman et al., 1998
deCODE Map
Kong et al., 2002


UniGene
A computational system for organizing transcribed sequences into gene-based clusters.

Full-Length cDNAs
A user's guide to sequences and clone reagents produced by full-length cDNA projects.
GEO
Gene Expression Omnibus, a public repository for gene expression and hybridization data.

SAGEmap
Gene expression results from SAGE tags mapped to mRNA sequences in GenBank.



Use of BAC clone CTD-3193o13 as a FISH probe in the analysis of chromosome aberrations associated with developmental abnormalities.
Human BAC Resource
A cytogenetic resource of FISH-mapped, sequence-tagged BAC clones.

SKY/CGH
Spectral karyotyping and comparative genome hybridization data for studying chromosome abnormalities.


HomoloGene
Putative orthologs based on large-scale comparative sequence analysis.

Homology Map
Computed blocks of conserved synteny between mouse and human.


Resource Guides
Bos taurus
Danio rerio
Mus musculus
Rattus norvegicus
Sus scrofa
Canis familaris
Tax Plot
Three-way view of genome similarities



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