SRP3070

IGF-II human

recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

• Synonyme(s) : Insulin-like Growth Factor-II
• Code UNSPSC : 12352202
• Nomenclature NACRES : NA.32

Propriétés

• Source biologique: human
• Produit recombinant: expressed in E. coli
• Essai: ≥98% (HPLC); ≥98% (SDS-PAGE)
• Forme: lyophilized
• Puissance: ≤2.0 ng/mL ED₅₀
• Poids mol.: 7.5 kDa
• Conditionnement: pkg of 50 μg
• Technique(s): cell culture | mammalian: suitable
• Impuretés: <0.1 EU/μg endotoxin, tested
• Couleur: off-white to yellow
• Numéro d'accès UniProt: P01344
• Conditions d'expédition: wet ice
• Température de stockage: −20°C
• Informations sur le gène: human ... IGF2(3481)

Description

Description générale

Insulin-like growth factors (IGFs) are predominantly produced by the liver, although a variety of tissues produce the IGFs at distinctive times. The IGFs belong to the insulin gene family, which also contains insulin and relaxin.[1] The IGFs are similar by structure and function to insulin, but have a much higher growth-promoting activity than insulin. IGF-II expression is influenced by placenta lactogen, while IGF-I expression is regulated by growth hormone. Both IGF-I and IGF-II signal through the tyrosine kinase type I receptor (IGF-IR),[2] but, IGF-II can also signal through the IGF-II/Mannose-6-phosphate receptor. Mature IGFs are generated by proteolytic processing of inactive precursor proteins, which contain N-terminal and C-terminal propeptide regions. Recombinant human IGF-I and IGF-II are globular proteins containing 70 and 67 amino acids, respectively, and three intra-molecular disulfide bonds.

Application

IL-4 from mouse has been used to activate B-cells.[3]

Actions biochimiques/physiologiques

The insulin-like growth factors (IGFs) are mitogenic polypeptide growth factors that stimulate the proliferation and survival of various cell types including muscle, bone, and cartilage tissue in vitro.[1]

Séquence

AYRPSETLCG GELVDTLQFV CGDRGFYFSR PASRVSRRSR GIVEECCFRS CDLALLETYC ATPAKSE

Forme physique

Lyophilized with no additives.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable