This result showed the N-terminus was Ile, not Arg.
FUNCTION: BINDS TO FOLATE AND REDUCED FOLIC ACID DERIVATIVES AND MEDIATES DELIVERY OF 5-METHYLTETRAHYDROFOLATE TO THE INTERIOR OF CELLS.
* SUBCELLULAR LOCATION: Attached to the membrane by a GPI-anchor.
* ALTERNATIVE PRODUCTS: 2 isoforms; 1/GPI-anchored (shown here) and 2/Cytoplasmic; are produced by alternative splicing.
* TISSUE SPECIFICITY: FR-ALPHA LEVELS ARE GREATLY ELEVATED IN A VARIETY OF MALIGNANT TISSUES OF EPITHELIAL ORIGIN COMPARED WITH NORMAL TISSUES.
* PTM: EIGHT DISULFIDE BONDS ARE PRESENT (PROBABLE).
* SIMILARITY: BELONGS TO THE FOLATE RECEPTOR FAMILY.
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