PubMed      http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed

ExPASy Proteomics Tools    http://us.expasy.org/tools/

BLAST Search Main Page    http://www.ncbi.nlm.nih.gov/BLAST/

Entrez Genome View (find the chromosomal location of your favorite human gene)  http://www.ncbi.nlm.nih.gov/mapview/map_search.cgi?chr=hum_chr.inf&query

Human UniGene (compilation of database information about genes)
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=unigene

ProfileScan (find functional domains in your protein)   http://hits.isb-sib.ch/cgi-bin/PFSCAN