| Reactivity | HuSpecies Glossary |
| Applications | WB |
| Clonality | Polyclonal |
| Host | Sheep |
| Conjugate | Alexa Fluor 532 |
| Immunogen | E. coli-derived recombinant human FOLR4 Glu134-Asn210 Accession # NP_001073955 |
| Specificity | Detects human FOLR4 in direct ELISAs and Western blots. In direct ELISAs, less than 5% cross-reactivity with recombinant human (rh) FOLR1, rhFOLR2, and rhFOLR3 is observed. |
| Isotype | IgG |
| Clonality | Polyclonal |
| Host | Sheep |
| Purity Statement | Antigen Affinity-purified |
| Innovator's Reward | Test in a species/application not listed above to receive a full credit towards a future purchase. |
| Storage | Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied |
| Buffer | Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide |
FOLR4 (Folate receptor 4; also FR4 and folate receptor δ and folate binding protein 3) is a 34‑36 kDa member of the folate receptor family of molecules. Based on mouse, it appears to be a marker for subsets of T cells. In particular, and in conjunction with CD25, FR4hiCD25hi expression defines T reg cells, FR4loCD25+ expression pattern identifies effector memory T cells, and a FR4hiCD25- combination characterizes central memory T cells. Mature human FOLR4 is 225 amino acids (aa) in length (aa 20‑244). It contains virtually no identifiable motifs. There is one potential splice variant that shows a five aa substitution for aa 111‑116. Over aa 134‑220, human FOLR4 shares 72% aa identity with mouse FOLR4.
Secondary Antibodies |
Isotype Controls |
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