IGF-Binding Protein 1 human
SIGMA/SRP3062 - recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
Synonym: IBP-1; Placenta Protein 12 (PP12)
Product Type: Chemical
| assay | ≥98% (HPLC) |
| ≥98% (SDS-PAGE) | |
| biological source | human |
| color | white to off-white |
| form | lyophilized |
| impurities | <0.1 EU/μg endotoxin, tested |
| mol wt | 25.4 kDa |
| packaging | pkg of 25 μg |
| potency | <0.5 μg/mL |
| recombinant | expressed in E. coli |
| shipped in | wet ice |
| storage temp. | −20°C |
| technique(s) | cell culture | mammalian: suitable |
| UniProt accession no. | P08833   |
| Biochem/physiol Actions: | Insulin-like growth factor-binding proteins (IGF-BPs) control the distribution, function and activity of insulin-like growth factors (IGFs) in various cell tissues and body fluids. They prolong the half-life of IGFs. Insulin-like growth factor-binding protein-1 (IGF-BP1) has been shown to have a role in the development and advancement of cancers. It is downregulated in hepatocellular carcinoma. |
| General description: | Insulin-like growth factor-binding proteins (IGF-BPs) form high affinity complexes with both insulin-like growth factor- I and II (IGF-I and IGF-II). Currently there are seven named IGF-BPs. Insulin-like growth factor-binding protein-1 (IGF-BP1) is a 25.4kDa cysteine-rich secreted protein. It is the most abundant IGF-BP in amniotic fluid and is expressed in liver, decidua and kidneys. Levels of IGF-BP1 in serum are lowest after food. It binds to both IGF-I and IGF-II with equal affinity. Phosphorylated IGF-BP1 hinders IGF actions, whereas non-phosphorylated IGF-BP1 is stimulatory. Recombinant human IGF-BP1 is a 25.4kDa protein consisting of 235 amino acid residues (Isoform A). |
| Physical form: | Lyophilized from 10 mM Sodium Phosphate, pH 7.5. |
| 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. |
| Sequence: | MAPWQCAPCS AEKLALCPPV SASCSEVTRS AGCGCCPMCA LPLGAACGVA TARCARGLSC RALPGEQQPL HALTRGQGAC VQESDASAPH AAEAGSPESP ESTEITEEEL LDNFHLMAPS EEDHSILWDA ISTYDGSKAL HVTNIKKWKE PCRIELYRVV ESLAKAQETS GEEISKFYLP NCNKNGFYHS RQCETSMDGE AGLCWCVYPW NGKRIPGSPE IRGDPNCQIY FNVQN |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥98% (HPLC); ≥98% (SDS-PAGE) |
| Storage Temp. | −20°C |
| UNSPSC | 12352200 |