How long is a protein sequence?

Stefek Borkowski stefek at killspam.edu
Thu Dec 2 05:38:37 EST 2004


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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