How long is a protein sequence?

BioSage m.j.grossman at att.net
Tue Dec 7 08:07:15 EST 2004


Stefek Borkowski wrote:
> Hi,
> Can someone explain how the length of protein sequence, i.e. the
number of
> amino acid residues, should be properly counted. I try to assess the
length
> of human heart fatty acid binding protein. It is physically built of
133
> amino acids, but for some reason the literature value is 132. It
seems like
> the paper purposely omits the first methionine. Also the numbering of
amino
> acids goes this way, as if the starting methionine is not present.
Would you
> please comment on this. Thank you in advance. Regards,
> Stefek




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