Expressed in a mammalian cell line
Amino-terminal fragment of insulin-like growth factor binding protein-4 (amino acid residues Asp22-Met156). Accession number UniProt P22692.
Does not contains any tags
Theoretical molecular weight 14 640 Da
Theoretical pI 6.32
Biochemical studies, mass NT-IGFBP4 standard, immunoassay standard and calibrator
Purity ≥90% (Tricine- SDS-PAGE)
Apparent molecular weight by SDS-PAGE is about 17 000 Da
Concentration is determined by Lowry method using BSA as a standard
Antibody pair IBP3 – IBP180 (Cat.# 4IGF4) is specific for Cat.# 8NGP4.
Lyophilized from 20 mM Tris-HCl, 150 mM NaCl, pH 7.4
It is recommended to reconstitute this product with deionized water to its initial concentration.
Lyophilized -20°C (-15…-30 °C allowed)
Reconstituted -70 °C (-65 … -80 °C allowed)
Avoid repeated freezing and thawing. It is recommended to aliquot the product after reconstitution.
This product is sold for research use only. Standard Laboratory Practices should be followed when handling this material.