FOLR1 Protein, Human (Biotinylated, HEK293, His-Avi)
The FOLR1 protein is an important mediator of folate uptake, binding to folate and promoting the delivery of 5-methyltetrahydrofolate into cells. Studies show high affinity at neutral pH. FOLR1 Protein, Human (Biotinylated, HEK293, His-Avi) is the recombinant human-derived FOLR1 protein, expressed by HEK293 , with C-Avi, C-6*His labeled tag.
- Species: Human
- Source: HEK293
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Storage:Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
Description
The FOLR1 protein is an important mediator of folate uptake, binding to folate and promoting the delivery of 5-methyltetrahydrofolate into cells. Studies show high affinity at neutral pH. FOLR1 Protein, Human (Biotinylated, HEK293, His-Avi) is the recombinant human-derived FOLR1 protein, expressed by HEK293 , with C-Avi, C-6*His labeled tag.
Background
The FOLR1 protein functions as a key mediator in folate uptake, binding to folate and reduced folic acid derivatives to facilitate the delivery of 5-methyltetrahydrofolate and folate analogs into the cell interior. This process is characterized by a high affinity for folate and folic acid analogs at neutral pH, as evidenced by various studies. Notably, exposure to a slightly acidic pH following receptor endocytosis induces a conformational change that significantly reduces its affinity for folates, facilitating their release. Beyond its role in folate transport, FOLR1 is essential for normal embryonic development and proper cell proliferation, underlining its significance in fundamental cellular processes.
Technical Parameters
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Species Human
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Source HEK293
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Tag C-Avi;C-6*His
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Accession
P15328 (R25-S234)
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Molecular Construction
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N-term
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FOLR1 (R25-S234)
Accession # P15328 -
6*His-Avi
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C-term
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Protein Length
Full Length of Mature Protein
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Conjugation
Biotin
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Conjugate Method
The single lysine residue in Avitag is biotinylated through an enzymatic reaction.
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Synonyms
FOLR1; KB Cells FBP; Prev. FOLR; FBP; Ovarian Tumor-Associated Antigen MOv18; Folate Binding Protein; Adult Folate-Binding Protein; FRalpha; Folate Receptor 1 (Adult); NCFTD; Folate Receptor, Adult; FRα; Folate Receptor 1; FRA; Folate Receptor Alpha; FR-A
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AA Sequence
RIAWARTELLNVCMNAKHHKEKPGPEDKLHEQCRPWRKNACCSTNTSQEAHKDVSYLYRFNWNHCGEMAPACKRHFIQDTCLYECSPNLGPWIQQVDQSWRKERVLNVPLCKEDCEQWWEDCRTSYTCKSNWHKGWNWTSGFNKCAVGAACQPFHFYFPTPTVLCNEIWTHSYKVSNYSRGSGRCIQMWFDPAQGNPNEEVARFYAAAMS
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Predicted Molecular Mass
27.5 kDa
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Molecular Weight
Approximately 35-40 kDa, based on SDS-PAGE under reducing conditions.
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Glycosylation
Yes
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Lyophilized powder.
<1 EU/μg, determined by LAL method.
It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).
Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
Room temperature in continental US; may vary elsewhere.
Documentation
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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