Thermo Fisher Scientific Human LIF, Animal-Free Recombinant Protein, PeproTech
동물 성분 없는 재조합 인간 LIF 단백질로, 줄기세포 분화 억제 및 증식 연구에 활용 가능. E. coli 발현, ≥98% 순도, 낮은 엔도톡신(<0.1 EU/µg). 인간 TF-1 세포 증식 활성 검증 완료. -20°C 보관, 연구용 전용 시약.
- 카탈로그번호
- AF-300-05-xxx (4개 옵션)
- 카테고리
- Protein
- 판매단위
- pk
카탈로그
4개 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 data
Miscellaneous PubMed (Misc)
- Refer to publication data
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; ED50 ≤ 0.1 ng/ml (≥ 1 x 10^7 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 information, please 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 membrane receptor composed of a LIF-specific subunit (gp190 or LIFR) and gp130, which is shared with other IL-6 family members.
LIF expression occurs in thymus, lung, and neuronal tissues, and can be up-regulated by cytokines such as TNFα and IL-17. Elevated LIF levels are associated with rheumatoid arthritis, neural injury, systemic inflammation, and tuberculosis.
LIF inhibits differentiation of embryonic stem cells and supports stem cell self-renewal. Human and mouse LIF share 79% sequence homology and exhibit cross-species activity, though stem cell differentiation inhibition is mouse-specific.
For Research Use Only.
Not for use in diagnostic procedures. Not for resale without express authorization.
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