Short peptides: Database search and multiple alignment
Several proteins were identified in the supernatant of a bacterial cell culture.
One of these proteins was isolated and the N-terminal amino acid sequence of three fragments was determined by Edman degradation.
The following peptide sequences were obtained:
- From which protein could the peptides derive?
- Find all homologous proteins in the sequence database!
- Construct a multiple sequence alignment of this protein family! Is there anything special?
Latest update: October 15, 2009
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