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Description: |
Recombinant Human Insulin produced in E.Coli is a two chain, non-glycosylated polypeptide chain containing 51 amino acids and having a molecular mass of 5807 Dalton.
rHuInsulin is purified by proprietary chromatographic techniques. |
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Source: |
Escherichia Coli.
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Physical Appearance: |
Sterile Filtered White lyophilized (freeze-dried) powder.
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Formulation: |
The protein was lyophilized from a concentrated (1mg/ml) solution with no additives.
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Solubility: |
It is recommended to reconstitute the lyophilized rHuInsulin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Stability: |
Lyophilized rHuInsulin although stable at room temperature for 3 weeks, should be stored desiccated below -18 °C. Upon reconstitution rHuInsulin should be stored at 4 °C between 2-7 days and for future use below -18 °C.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.
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Purity: |
Greater than 98.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Anion-exchange FPLC.
(c) Analysis by reducing and non-reducing SDS-PAGE Silver Stained gel.
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Dimers and aggregates: |
Less than 1% as determined by silver-stained SDS-PAGE gel analysis.
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Biological Activity: |
ProSpec's rHuInsulin is fully biologically active when compared to World Health Organization (WHO) reference standard which is 28 units/mg.
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Endotoxin: |
Less than 0.1 ng/µg (IEU/µg) of rHuInsulin.
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Protein content: |
Protein quantitation was carried out by two independent methods:
UV spectroscopy at 280 nm. Analysis by RP-HPLC, using a calibrated solution of Insulin as a Reference Standard. |
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Usage: |
This material is offered for research, laboratory or further manufacturing purposes.
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