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凝血酶

    
BR,2000u/mg protein,牛血漿

Thrombin

源葉
S10117 一鍵復(fù)制產(chǎn)品信息
9002-04-4
MFCD00166053
凝血活素;血液凝血因子3;原激酶;凝血因子
貨號 規(guī)格 價格 上海 北京 武漢 南京 購買數(shù)量
S10117-1ku
BR,2000u/mg protein,牛血漿 ¥240.00 >10 10 - >10
S10117-2ku
BR,2000u/mg protein,牛血漿 ¥400.00 >10 >10 1 6
產(chǎn)品介紹 參考文獻(xiàn)(108篇) 質(zhì)檢證書(COA) 摩爾濃度計算器 相關(guān)產(chǎn)品

產(chǎn)品介紹

來源:牛血漿

性狀(以下信息僅供參考):白色或類白色無定形粉末或固體。

穩(wěn)定性:水溶液室溫下8h內(nèi)失活。遇熱、稀酸、堿、金屬等活力降低。

介紹:由動物血漿分離制得的凝血酶原,再用凝血致活酶和氯化鈣激活而成。是一種蛋白水解酶,血漿中的可溶性纖維蛋白原在凝血酶的激活下,轉(zhuǎn)變成不溶性纖維蛋白網(wǎng)狀結(jié)構(gòu),使血液凝固。纖維蛋白原有六條肽鏈組成,凝血酶的組成是從四條肽鏈的N端切斷一定特定的肽鍵(—Arg—Gly),放出兩個A肽(19肽)和兩個B肽(21肽),另二條N端為酷氨酸的肽鏈沒有變化。A肽和B肽切除后,減少了蛋白質(zhì)分子的負(fù)電荷,促進(jìn)了纖維蛋白分子的直線聚合和側(cè)向聚合,從而形成網(wǎng)狀結(jié)構(gòu)的纖維蛋白.

注意事項:

1、0.9%的nacl 保存時濃度要大于500U/ml;保存時分裝-20℃保存,不能反復(fù)凍融,復(fù)溶先以放到4℃緩沖1-2h,再拿到常溫使用,稀釋過程可以直接使用20mMTris-HCl 緩沖液,含 150mM,氯化鈉,pH8.0,也可以參考文獻(xiàn)按照文獻(xiàn)方案。(溶液狀態(tài)儲存,活力會有所下降,酶屬于蛋白類,無法避免,如果遇到酶活降低情況,可以降低稀釋倍數(shù)來達(dá)到之前的活性。)

2、纖維蛋白原(約2mg/ml)0.9ml,加凝血酶(10單位/ml)0.1ml,37℃凝固時間大約30秒;纖維蛋白原(約2mg/ml)0.9ml,加凝血酶(5單位/ml)0.1ml,37℃凝固時間大約50秒;溶液均用0.9%氯化鈉制備。 

3、1ku一支產(chǎn)品總質(zhì)量大約30mg左右,里面有酶蛋白,緩沖鹽和輔料等,單獨(dú)取用有可能會不均勻,建議整瓶溶解。. 

4、酶切條件:融合蛋白1mg,加凝血酶1~5U(如果樣品濃度低,體系較大需要增加量),20-37℃孵育16小時左右。有效的消化緩沖液是 20mMTris-HCl 緩沖液,含 150mM,氯化鈉,pH8.0。僅供參考

儲存條件: -20℃
用途: 能促使纖維蛋白原轉(zhuǎn)化為纖維蛋白的酶。
注意: 部分產(chǎn)品我司僅能提供部分信息,我司不保證所提供信息的權(quán)威性,僅供客戶參考交流研究之用。

參考文獻(xiàn)(108篇)

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質(zhì)檢證書(COA)

如何獲取質(zhì)檢證書(COA)?
請輸入貨號和一個與之匹配的批號。
例如:
批號:JS298415 貨號:S20001-25g
在貨品標(biāo)簽上如何找到貨號和批號?

摩爾濃度計算器

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