추천 제품
제품명
Leukemia Inhibitory Factor human, LIF, recombinant, expressed in E. coli, 10 μg/ml, buffered aqueous solution (pH 7.4), suitable for cell culture
재조합
expressed in E. coli
Quality Level
분석
≥95% (SDS-PAGE)
양식
buffered aqueous solution (pH 7.4)
효능
0.1-1.5 ng/mL ED50/EC50
품질
endotoxin tested
기술
cell culture | mammalian: suitable
저장 온도
2-8°C
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생화학적/생리학적 작용
Leukemia Inhibitory Factor (LIF) is a pleiotropic glycoprotein originally described to inhibit the proliferation of the murine myeloid leukemic cell line M1, while inducing differentiation into macrophages. Other activities were later identified to LIF, which is known by a variety of synonyms, including DIF, D-factor, DIA, DRF, CNDF, HILDA, HSF-III, and MLPLI. Human LIF exerts its actions through a receptor comprising a 190 kDa LIF-binding α-chain (130 kDa, mouse) and a 130 kDa signal-transducing β-chain (gp130), which is shared with CNTF, OSM, L-6 and IL-11. As such, it is a member of the gp130 family of the cytokine receptor superfamily. LIF receptors have been identified on several cells, including monocytes, liver, placenta and embryonic stem cells. Natural LIF is heavily glycosylated, showing an apparent molecular weight of 32 kDa to 62 kDa, depending on the source, but absence of glycosylation appears not to affect its biological activity. A single gene encodes LIF, which is secreted as a single chain glycoprotein containing 180 amino acids for human or mouse with a conserved disulfide bond. Human and mouse LIF share 78% sequence homology. Human LIF can activate mouse cells, but mouse LIF cannot activate human cells.
물리적 형태
Solution, 0.2 μm filtered, in phosphate buffered saline containing 0.02% TWEEN® 20.
분석 메모
The proliferative activity of human LIF is measured in culture using the human leukemic cell line, TF-1.
법적 정보
TWEEN is a registered trademark of Croda International PLC
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
개인 보호 장비
Eyeshields, Gloves, type N95 (US)
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문서
Leukemia Inhibitory Factor (LIF) is a stem cell growth factor used for the in vitro culture of pluripotent mouse embryonic stem cells (ES cells).
Naive pluripotent stem cells cultured in vitro using specialized media and inhibitors mimic "ground-state" cells from blastocysts.
자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..
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