Title : Identification of amino acid residues that determine the differential ligand specificities of folate receptors alpha and beta.

Pub. Date : 1997 May 20

PMID : 9166787






4 Functional Relationships(s)
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1 Substitution of the amino-terminal portion (residues 1-92) in the mature FR-alpha polypeptide with the corresponding segment of FR-beta resulted in folate binding characteristics similar to FR-beta. Folic Acid folate receptor beta Homo sapiens
2 In this fashion, it was determined that the alanine residue at position 49 in FR-alpha was critical for its functional divergence from FR-beta, since substitution at this position with Leu (the corresponding residue in FR-beta) resulted in the folate binding characteristics of FR-beta. Folic Acid folate receptor beta Homo sapiens
3 In this fashion, it was determined that the alanine residue at position 49 in FR-alpha was critical for its functional divergence from FR-beta, since substitution at this position with Leu (the corresponding residue in FR-beta) resulted in the folate binding characteristics of FR-beta. Folic Acid folate receptor beta Homo sapiens
4 Reciprocal substitution in FR-beta with peptide 1-92 of FR-alpha resulted in poor expression of a [3H]folic acid binding protein. Folic Acid folate receptor beta Homo sapiens