重組人內(nèi)分泌腺血管內(nèi)皮生長因子（rHuEG-VEGF）
- 型號：
- 更新時間： 2024-05-23
- 上一個：重組人結(jié)締組織生長因子（rHuCTGF）
- 下一個：血管內(nèi)皮生長因子（rHuVEGF）
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產(chǎn)品介紹
| CYT-338 | 重組人內(nèi)分泌腺血管內(nèi)皮生長因子（rHuEG-VEGF） | 2μg/10μg/1mg | Prospec |
| Background: | |
| Human endocrine gland derived vascular endothelial growth factor （EG-VEGF） is selectively expressed in steroidogenic glands and promotes growth of endocrine gland endothelium. The identification of tissue-selective angiogenic factors raises the possibility that other secreted molecules in this class exist. Consistent with such an expression pattern, the human EG-VEGF gene promoter has a potential binding site for steroidogenic factor （SF）-1, a pivotal element for steroidogenic-specific transcription. In the human ovary, the expression of EG-VEGF is temporally and spatially complementary to the expression of VEGF-A, both in the follicular and in the luteal phase, suggesting complementary and coordinated roles of these molecules in ovarian angiogenesis. Also, EG-VEGF expression correlates with vascularity in the polycystic ovary syndrome, a leading cause of infertility. | |
 | Description : |
| Recombinant Human EG-VEGF produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 86 amino acids and having a molecular mass of 9605 Dalton. Recombinant EG-VEGF is purified by proprietary techniques. | |
| Physical Appearance: |
| Sterile Filtered White lyophilized （freeze-dried） powder. | |
| Formulation: |
| Recombinant VEGF was lyophilized from a concentrated （1mg/ml） solution with no additives. | |
| Solubility: |
| It is recommended to reconstitute the lyophilized VEGF in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions. | |
| Stability: |
| Lyophilized VEGF although stable at room temperature for 3 weeks, should be stored desiccated below -18 C. Upon reconstitution rHuVEGF 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. | |
| 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. | |
| Amino acid sequence: |
| The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Ile-Thr-Gly. | |
| Dimers and aggregates: |
| Less than 1% as determined by silver-stained SDS-PAGE gel analysis. | |
| Biological Activity: |
| The biological activity is determined by the dose-dependent stimulation of the proliferation of human umbilical vein endothelial cells （HUVEC） using a concentration range of 1.0-5.0 ng/ml. | |
| Endotoxin: |
| Less than 0.1 ng/µg （IEU/µg） of EG-VEGF. | |
| Protein content: |
| Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm. 2. Analysis by RP-HPLC, using a calibrated solution of EG-VEGF as a Reference Standard. | |
| Usage: |
| Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals. |
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