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    • 2026春節(jié)放假通知
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      產(chǎn)品詳情

      DESCRIPTION

      Gene Name Synonym

      EDLAP, TGF-beta 1, TGFB1, DPD1, TGF-beta-1, TGFB

      Species

      Rat

      Accession

      P17246

      Source

      HEK293 cells

      SPECIFICATIONS

      Amino acid sequence

      Leu30-Ser390 is expressed with a 10×His tag at the C terminus

      Molecular Weight

      41.3 kDa

      Purity

      >95.0% as determined by SDS-PAGE

      Endotoxin

      <5 EU mg-1

      Formulation

      Lyophilized from sterile PBS, pH 7.4.Normally 5%-8% trehalose and mannitol are added as protectants before lyophilization.

      Reconstitution

      Dissolved in sterile water, it is recommended to add 0.1% HSA or BSA for long-term preservation.

      STORAGE

      Stability and Storage

      12 months from date of receipt at -20°C to -70°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for almost 6 months (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

      BACKGROUND

      Transforming growth factor beta 1 ( TGFB1) is also known as TGF-β1, CED, DPD1, TGFB. is a polypeptide member of the transforming growth factor beta superfamily of cytokines. It is a secreted protein that performs many cellular functions, including the control of cell growth, cell proliferation, cell differentiation and apoptosis. The TGFB1 protein helps control the growth and division (proliferation) of cells, the process by which cells mature to carry out specific functions (differentiation), cell movement (motility), and the self-destruction of cells (apoptosis). The TGFB1 protein is found throughout the body and plays a role in development before birth, the formation of blood vessels, the regulation of muscle tissue and body fat development, wound healing, and immune system function. TGFB1 is particularly abundant in tissues that make up the skeleton, where it helps regulate bone growth, and in the intricate lattice that forms in the spaces between cells (the extracellular matrix). Within cells, this protein is turned off (inactive) until it receives a chemical signal to become active.

      Data

      SDS-PAGE

      Bioactivity


      Active Recombinant Rat TGF-beta1 Protein was determined by SDS-PAGE with Coomassie Blue.The apparent molecular mass of the recombinant protein is approximately 55, 38 and 16 kDa in SDS-PAGE under reducing conditions due to glycosylation.



      常見問題
      問:細胞的運輸方式有哪些?有什么區(qū)別?

      答:公司提供兩種運輸方式供老師選擇,1、復蘇的活細胞:采用常溫發(fā)貨的方式,收到即可觀察密度并判斷是否進行傳代操作。優(yōu)勢是省去復蘇的步驟,細胞成活率較高。2、凍存的細胞:采用干冰運輸,一般情況下發(fā)貨是2支凍存管,收到后放-80過夜,第二天轉(zhuǎn)入液氮長期存儲,擇機復蘇。優(yōu)勢是發(fā)貨快,一般一兩天即可收到,缺點是需要自己復蘇。

      問:為什么你們的細胞和其他公司的細胞培養(yǎng)條件不一樣?

      答:我公司提供的細胞大部分都參考資源庫的培養(yǎng)信息,如ATCC、DSMZ、中科院等等官方平臺。也有少部分細胞為客戶提供了替代培養(yǎng)方案,根據(jù)客戶的意愿進行選擇!

      問:培養(yǎng)瓶的培養(yǎng)液可以重復使用嗎?

      答:不可以重復使用,一般從我公司發(fā)出的細胞都需要達到一定的密度后發(fā)出,充液的培養(yǎng)基血清比例會比正常培養(yǎng)時所用到的培養(yǎng)液低很多,通常在3-5%,以維持細胞存活,控制生長速度,不可以用來做細胞培養(yǎng)使用。

      問:培養(yǎng)細胞在鏡下觀察發(fā)現(xiàn)有一些白色的圓點是什么?

      答:細胞在鏡下發(fā)現(xiàn)圓形的白色的點點,一般情況下是為貼壁的細胞或脫落的細胞死亡后的產(chǎn)物,懸浮細胞也會有這種現(xiàn)象,出現(xiàn)圓形的光圈一樣的圓點。通常,白色的圓點是分散分布的,聚團類的懸浮細胞可能會聚團出現(xiàn)白色的亮斑,技術(shù)老師可以繼續(xù)培養(yǎng)并觀察。

      問:剛買回來的細胞如何凍存留種呢?

      答:一般情況下,我公司建議客戶收到細胞后傳1-2代后即可安排凍存留種,可先凍存1-2支凍存管,凍存的細胞數(shù)量多一些,便于后期復蘇。購買原代細胞的客戶,要充分考慮該細胞的傳代次數(shù)限制,人源原代細胞大概可以傳7代左右,鼠源的可以傳3代左右,對于一些能傳代次數(shù)很少的原代細胞,不建議凍存,收到后調(diào)整狀態(tài)后即可安排實驗。

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