DNA
helicase
    To see a rasmol image of Bacillus stearothermophilus
DNA helicase click on the above title.
    DNA helicase is an enzyme that unwinds double-stranded
DNA at the replication fork during DNA replication.  Single-strand
binding proteins then attach to the unpaired strands in order to allow
DNA polymerase to replicate the two strands.  When this process is
complete, two identical dsDNA strands are produced.
 
|  | nucleotide sequence | amino acid sequence | 
| Homosapiens sapiens, humans | Complete
gene | Yes | 
| Mus musculus, common house mouse | cDNA | Yes | 
| Saccharomyces cerevisiae, yeast | Complete
gene | Yes | 
| Plasmodium falciparum, malarial parasite | Partial
cDNA | Yes | 
| Rhodothermus marinus, bacteria | Complete
gene | Yes | 
To see the MacDNAsis analysis of this protein, click here.
Sources:
Campbell, N. A.  1996.  Biology, Fourth Edition.  Menlo
Park, CA:  Benjamin/Cummings Publishing
    Company. p. 292.
National Center for Biotechnology Information.  15 December 1998. 
Pubmed protein query.  NCBI GenBank.
    <http://www.ncbi.nlm.nih.gov/> 
Accessed 10 March 1999.
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