Assertion: immunoglobulin | /r/MadeOf | an amino acid residue
Facets:
value: at position
type: LOCATION
Source sentences:
text: Fragment corresponding to a polypeptide of a heavy chain of an immunoglobulin, which contains an amino acid residue at position 45 of said heavy chain which is a charged amino acid or a cysteine residue, said fragment forming a determined antigen binding site.