Thermo Fisher Scientific Human LIF, Animal-Free Recombinant Protein, PeproTech
인체 유래 LIF 단백질로, 동물 유래 성분 없이 생산된 재조합 단백질입니다. 인간 TF-1 세포 증식을 유도하며 높은 순도(≥98%)와 낮은 엔도톡신 수준(<0.1 EU/µg)을 제공합니다. 줄기세포 연구 및 세포 분화 억제 연구에 적합합니다.
- 카탈로그번호
- AF-300-05-xxxxx (2개 옵션)
- 카테고리
- Protein
- 판매단위
- pk
카탈로그
2개 옵션 · 카탈로그 번호를 클릭하면 복사됩니다Thermo Fisher Scientific · Thermo Fisher Scientific Human LIF, Animal-Free Recombinant Protein, PeproTech
Applications
Functional Assay (Functional)
- Assay-dependent
In vitro Assay (IV)
- Refer to publication
Miscellaneous PubMed (Misc)
- Refer to publication
Product Specifications
| 항목 | 내용 |
|---|---|
| Species | Human |
| Published Species | Human, Rat |
| Expression System | E. coli |
| Amino Acid Sequence | SPLPITPVNA TCAIRHPCHN NLMNQIRSQL AQLNGSANAL FILYYTAQGE PFPNNLDKLC GPNVTDFPPF HANGTEKAKL VELYRIVVYL GTSLGNITRD QKILNPSALS LHSKLNATAD ILRGLLSNVL CRLCSKYHVG HVDVTYGPDT SGKDVFQKKK LGCQLLGKYK QIIAVLAQAF |
| Molecular Weight | 19.6 kDa |
| Class | Recombinant |
| Type | Protein |
| Purity | ≥ 98% by SDS-PAGE gel and HPLC analyses |
| Endotoxin Concentration | < 0.1 EU/µg |
| Activity | Stimulates proliferation of human TF-1 cells. Expected ED50 ≤ 0.1 ng/ml (≥ 1 × 10⁷ units/mg) |
| Conjugate | Unconjugated |
| Form | Lyophilized |
| Purification | Purified |
| Contains | No preservative |
| Storage Conditions | -20°C |
| Shipping Conditions | Ambient |
Product Specific Information
Recombinant Human LIF is a 19.7 kDa protein containing 180 amino acid residues, including three disulfide bonds.
This product is shipped at ambient temperature. For storage, handling, and reconstitution details, refer to the lot-specific Certificate of Analysis.
Target Information
Leukemia inhibitory factor (LIF) is a 20 kDa protein belonging to the IL-6 receptor family. It binds to a heterodimeric receptor composed of a LIF-specific subunit (gp190/LIFR) and the shared gp130 subunit.
LIF expression occurs in various tissues such as thymus, lung, and neuronal tissue. It can be up-regulated by pro-inflammatory cytokines (e.g., TNFα, IL-17). Elevated LIF levels have been observed in rheumatoid arthritis, neural injury, systemic inflammation, and tuberculosis.
LIF is known for inhibiting embryonic stem cell differentiation and supporting stem cell self-renewal. Human and mouse LIF share 79% sequence homology and exhibit cross-species activity, though LIF-mediated inhibition of stem cell differentiation is mouse-specific.
For Research Use Only.
Not for use in diagnostic procedures. Not for resale without express authorization.
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