Leptin Pufferfish

目录号: GP20698纯度: >98%
Leptin Pufferfish Recombinant

Leptin Pufferfish
规格价格库存数量操作
20μg¥1,400.00现货
1
100μg¥4,200.00现货
1
1mg¥25,200.00现货
1

文献被引

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    641, 529–536 (2025)
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    618, 1017–1023 (2023)
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    Nature
    610, 366–372 (2022)
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    Cell
    187(9):2288-2304 (2024)
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    Cell
    183(7):1867-1883 (2020)
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    Science
    388(6745) (2025)
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产品描述 Description

Leptin Pufferfish (Takifugu rubripes) Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain having a molecular mass of 16 kDa. Bioactive Leptin Pufferfish (Takifugu rubripes) Recombinant was prepared according to the sequence published by Kurokawa et al. (2005)Peptides 26, 745-750 in two forms: monomer and covalent dimer. MS analysis revealed molecular masses of 15,291 and 30,585 Da, close to the theoretical values of 15,270 and 30,540 Da. CD spectra revealed high similarity to mammalian leptins. Other details of its preparation will be soon published by Yacobovitz et al (in press), General and Comparative Endocrinology.The Pufferfish Leptin is purified by proprietary chromatographic techniques.

产品文档 Product Documents

Product Data

Purity
Greater than 99.0% as determined by:(a) Analysis by SEC-HPLC.(b) Analysis by SDS-PAGE.
Source
Escherichia Coli.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Shipping Condition
Shipped at Room temp.
Synonyms
OB Protein; Obesity Protein; OBS; Obesity factor.
Amino Acid Sequence
ALPGALDAMDVEKMKSKVTWKAQGLVARIDKHFPDRGLRFDTDKVEGSTSVVASLESYNNLISDRFGGVSQIKTEISSLAGYLNHWREGNCQEQQPKVWPRRNIFNHTVSLEALMRVREFLKLLQKNVDLLERC
Solubility
It is recommended to reconstitute the lyophilized Pufferfish Leptin in sterile 0.4% NaHCO3 pH-9 not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Stability
Lyophilized Pufferfish Leptin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C . Upon reconstitution Leptin 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.
Biological Activity
Biological active as evidenced by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. The affinity of human leptin receptors is considerably lower campared to mammalian leptins.
Formulation
The Pufferfish Leptin was lyophilized from a concentrated (0.85mg/ml) solution with 0.003mM NaHCO3.