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Recombinant human IGF1 protein (Active) is a Human Fragment protein, in the 49 to 118 aa range, expressed in Escherichia coli, with >98% purity, < 1 EU/µg endotoxin level and suitable for SDS-PAGE, FuncS, HPLC.

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Key facts

Purity

>98% SDS-PAGE

Endotoxin level

< 1 EU/µg

Expression system

Escherichia coli

Tags

Tag free

Applications

SDS-PAGE, FuncS, HPLC

Biologically active

Yes

Amino acid sequence

G P E T L C G A E L V D A L Q F V C G D R G F Y F N K P T G Y G S S S R R A P Q T G I V D E C C F R S C D L R R L E M Y C A P L K P A K S A

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Reactivity data

Application

SDS-PAGE

Reactivity

Reacts

Dilution info

-

Notes

-

Application

FuncS

Reactivity

Reacts

Dilution info

-

Notes

-

Application

HPLC

Reactivity

Reacts

Dilution info

-

Notes

-

Target data

Function

The insulin-like growth factors, isolated from plasma, are structurally and functionally related to insulin but have a much higher growth-promoting activity. May be a physiological regulator of [1-14C]-2-deoxy-D-glucose (2DG) transport and glycogen synthesis in osteoblasts. Stimulates glucose transport in bone-derived osteoblastic (PyMS) cells and is effective at much lower concentrations than insulin, not only regarding glycogen and DNA synthesis but also with regard to enhancing glucose uptake. May play a role in synapse maturation (PubMed:21076856, PubMed:24132240). Ca(2+)-dependent exocytosis of IGF1 is required for sensory perception of smell in the olfactory bulb (By similarity). Acts as a ligand for IGF1R. Binds to the alpha subunit of IGF1R, leading to the activation of the intrinsic tyrosine kinase activity which autophosphorylates tyrosine residues in the beta subunit thus initiatiating a cascade of down-stream signaling events leading to activation of the PI3K-AKT/PKB and the Ras-MAPK pathways. Binds to integrins ITGAV:ITGB3 and ITGA6:ITGB4. Its binding to integrins and subsequent ternary complex formation with integrins and IGFR1 are essential for IGF1 signaling. Induces the phosphorylation and activation of IGFR1, MAPK3/ERK1, MAPK1/ERK2 and AKT1 (PubMed:19578119, PubMed:22351760, PubMed:23696648, PubMed:23243309).

Alternative names

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Recombinant human IGF1 protein (Active) is a Human Fragment protein, in the 49 to 118 aa range, expressed in Escherichia coli, with >98% purity, < 1 EU/µg endotoxin level and suitable for SDS-PAGE, FuncS, HPLC.

Alternative names

Key facts

Purity

>98% SDS-PAGE

Endotoxin level

< 1 EU/µg

Expression system

Escherichia coli

Applications

SDS-PAGE, FuncS, HPLC

Biological activity

The ED50, as determined by a cell proliferation assay using FDC-P1 cells, is ≤ 2.0 ng/ml, corresponding to a specific activity of ≥ 5 x 105 units/mg.

Accession
P05019-1
Animal free

No

Species

Human

Reconstitution

Reconstitute with 100 ul of deionised water (or equivalent Please note that if you receive this product in liquid form it has already been reconstituted as described and no further reconstitution is necessary.

Concentration
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Sequence info

Amino acid sequence

G P E T L C G A E L V D A L Q F V C G D R G F Y F N K P T G Y G S S S R R A P Q T G I V D E C C F R S C D L R R L E M Y C A P L K P A K S A

Accession

P05019

Protein length

Fragment

Predicted molecular weight

7.6 kDa

Amino acids

49 to 118

Nature

Recombinant

Specifications

Form

Lyophilized

Additional notes

>98% HPLC analyses.

General info

Function

The insulin-like growth factors, isolated from plasma, are structurally and functionally related to insulin but have a much higher growth-promoting activity. May be a physiological regulator of [1-14C]-2-deoxy-D-glucose (2DG) transport and glycogen synthesis in osteoblasts. Stimulates glucose transport in bone-derived osteoblastic (PyMS) cells and is effective at much lower concentrations than insulin, not only regarding glycogen and DNA synthesis but also with regard to enhancing glucose uptake. May play a role in synapse maturation (PubMed:21076856, PubMed:24132240). Ca(2+)-dependent exocytosis of IGF1 is required for sensory perception of smell in the olfactory bulb (By similarity). Acts as a ligand for IGF1R. Binds to the alpha subunit of IGF1R, leading to the activation of the intrinsic tyrosine kinase activity which autophosphorylates tyrosine residues in the beta subunit thus initiatiating a cascade of down-stream signaling events leading to activation of the PI3K-AKT/PKB and the Ras-MAPK pathways. Binds to integrins ITGAV:ITGB3 and ITGA6:ITGB4. Its binding to integrins and subsequent ternary complex formation with integrins and IGFR1 are essential for IGF1 signaling. Induces the phosphorylation and activation of IGFR1, MAPK3/ERK1, MAPK1/ERK2 and AKT1 (PubMed:19578119, PubMed:22351760, PubMed:23696648, PubMed:23243309).

Sequence similarities

Belongs to the insulin family.

Storage

Shipped at conditions

Blue Ice

Appropriate short-term storage duration

1-2 weeks

Appropriate short-term storage conditions

+4°C

Appropriate long-term storage conditions

-20°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

This product is an active protein and may elicit a biological response in vivo, handle with caution.

Supplementary info

Biological function summary

IGF1 stimulates growth and proliferation of cells most notably impacting the development of the skeletal system and the regulation of apoptosis. It is not part of a larger protein complex but it interacts closely with IGF1 receptor to execute its functions. By binding to this receptor IGF1 activates intracellular signaling cascades that promote anabolic effects which include increased uptake of glucose and amino acids contributing to muscle and tissue growth.

Activity summary

The insulin-like growth factor 1 or IGF1 is a protein hormone that plays an important mechanical role in growth and development. Alternative names for IGF1 include somatomedin C. This protein has a mass of approximately 7.6 kDa and is mainly produced by the liver. IGF1 is expressed in a range of tissues including muscle bone and cartilage reflecting its importance in various physiological processes. Its production is stimulated by growth hormone and it acts in an autocrine and paracrine manner to exert its effects.

Pathways

IGF1 operates within the PI3K-Akt and MAPK signaling pathways which are significant for cell survival and proliferation. Its interaction with proteins like IGF binding protein 3 (IGFBP3) modulates its availability and activity in the bloodstream. These pathways are critical for mediating the effects of growth hormone highlighting the role of IGF1 in systemic growth and metabolism regulation.

Associated diseases and disorders

Alterations in IGF1 levels associate with growth abnormalities such as Laron syndrome and acromegaly. Laron syndrome results from the body's inability to use IGF1 properly due to receptor defects while acromegaly occurs from excessive IGF1 production often due to pituitary tumors. Furthermore aberrant IGF1 signaling connects to cancer development where it can drive tumor growth and metastasis. Drugs targeting IGF1 and its pathway components continue to be researched for therapeutic potential in these conditions.

Product promise

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In the unlikely event of one of our products not working as expected, you are covered by our product promise.

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Terms & Conditions.

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