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201608-14-2、Caspase 3 (Apopain) Substrate 1f、fluorogenic,Ac-Asp-Glu-Val-Asp-AFC、Ac-DEVD-AFC,安徽专肽生物的产品

Caspase 3 (Apopain) Substrate 1f, fluorogenic (10765-05)

Ac-DEVD-AFC 是一种荧光底物 (λex=400 nm,λem=530 nm)。

编号:130310

CAS号:201608-14-2

单字母:Ac-DEVD-AFC

纠错
  • 编号:130310
    中文名称:Caspase 3 (Apopain) Substrate 1f, fluorogenic (10765-05)
    英文名:Caspase 3 (Apopain) Substrate 1f, fluorogenic (10765-05)
    CAS号:201608-14-2
    单字母:Ac-DEVD-AFC
    三字母:Ac

    N端乙酰化封端,一种常见的修饰方式,常用于模拟蛋白质中的肽片段。

    -Asp

    L-天冬氨酸:aspartic acid。系统命名为(2S)-氨基-丁二酸。是编码氨基酸,又是神经递质。符号:D,Asp。D-天冬氨酸存在于多种细菌的细胞壁和短杆菌肽A中。

    -Glu

    L-谷氨酸:glutamic acid。系统命名为(2S)-氨基-戊二酸。是编码氨基酸。符号:E,Glu。D-谷氨酸存在于多种细菌的细胞壁和某些细菌杆菌肽中。

    -Val

    L-缬氨酸:valine。系统命名为(2S)-氨基-3-甲基丁酸。是编码氨基酸。是哺乳动物的必需氨基酸。符号:V,Val。在某些放线菌素如缬霉素中存在 D-缬氨酸。

    -Asp

    L-天冬氨酸:aspartic acid。系统命名为(2S)-氨基-丁二酸。是编码氨基酸,又是神经递质。符号:D,Asp。D-天冬氨酸存在于多种细菌的细胞壁和短杆菌肽A中。

    -AFC

    7-氨基-4-三氟甲基香豆素(AFC)是一种荧光染料,其激发波长为376纳米,发射波长为480纳米。

    氨基酸个数:4
    分子式:C30H34O13N4F3
    平均分子量:715.61
    精确分子量:715.21
    等电点(PI):-
    pH=7.0时的净电荷数:-3
    平均亲水性:1.875
    疏水性值:-1.58
    消光系数:-
    标签:AFC修饰肽   
  • Ac-DEVD-AFC 是一种荧光底物 (λex=400 nm,λem=530 nm)。

    Ac-DEVD-AFC is a fluorogenic substrate (λex=400 nm, λem=530 nm).

    7-Amino-4-trifluoromethyl-coumarin (AFC) is fluorophor with an excitation at 376 nm  and emission of 480 nm .

  • DOI名称
    10.1038/sj.cdd.4400928Nuclear localization of DEDD leads to caspase-6 activation through its death effector domain and inhibition of RNA polymerase I dependent transcription下载
    10.1038/sj.cdd.4401247Inhibition of papain-like cysteine proteases and legumain by caspase-specific inhibitors: when reaction mechanism is more important than specificity下载
    10.1074/jbc.M308347200Selective disruption of lysosomes in HeLa cells triggers apoptosis mediated by cleavage of Bid by multiple papain-like lysosomal cathepsins下载
    10.1111/j.1365-3083.2011.02589.xLysosomal membrane permeabilization induces cell death in human mast cells下载
    10.1074/jbc.M305110200Human caspase-7 activity and regulation by its N-terminal peptide下载
    10.1038/sj.emboj.7600210Analysis of the composition, assembly kinetics and activity of native Apaf-1 apoptosomes下载
    10.1002/dvdy.20124Activation of apoptosis and caspase-3 in zebrafish early gastrulae下载
    10.1074/jbc.M410915200Molecular ordering of the caspase activation cascade initiated by the cytotoxic T lymphocyte/natural killer (CTL/NK) protease granzyme B下载
    10.1016/j.febslet.2005.03.002Sensitization of stefin B-deficient thymocytes towards staurosporin-induced apoptosis is independent of cysteine cathepsins下载
    10.2353/ajpath.2006.050323Anti-apoptotic function of gelsolin in fas antibody-induced liver failure in vivo下载
    10.1016/j.neuro.2006.06.006Proteasome inhibitor MG-132 induces dopaminergic degeneration in cell culture and animal models下载
    10.1016/j.febslet.2007.10.005Cysteine cathepsins are not involved in Fas/CD95 signalling in primary skin fibroblasts下载
    10.1016/j.febslet.2007.12.002Similar toxicity of the oligomeric molten globule state and the prefibrillar oligomers下载
    10.1016/j.ejphar.2008.11.008Azaphenylalanine-based serine protease inhibitors induce caspase-mediated apoptosis下载
    10.1074/jbc.M807913200Nucleophosmin is cleaved and inactivated by the cytotoxic granule protease granzyme M during natural killer cell-mediated killing下载
    10.1111/j.1365-2362.2009.02133.xKeratin 18 provides resistance to Fas-mediated liver failure in mice下载
    10.1016/j.bbapap.2009.04.011Cysteine cathepsins are not critical for TNF-alpha-induced cell death in T98G and U937 cells下载
    10.1016/j.immuni.2009.05.007Suppression of interleukin-33 bioactivity through proteolysis by apoptotic caspases下载
    10.1016/j.chembiol.2010.07.011Selective and sensitive monitoring of caspase-1 activity by a novel bioluminescent activity-based probe下载
    10.1186/1479-5876-9-123Liver mitochondrial dysfunction is reverted by insulin-like growth factor II (IGF-II) in aging rats下载
    10.1021/jm300881aSynthesis and characterization of a novel prostate cancer-targeted phosphatidylinositol-3-kinase inhibitor prodrug下载
    10.1371/journal.pone.0044694Viral cross-class serpin inhibits vascular inflammation and T lymphocyte fratricide; a study in rodent models in vivo and human cell lines in vitro下载
    10.1016/j.bbamcr.2013.05.007N-terminally truncated forms of human cathepsin F accumulate in aggresome-like inclusions下载
    10.1038/onc.2013.314Stefin B deficiency reduces tumor growth via sensitization of tumor cells to oxidative stress in a breast cancer model下载
    10.1039/c4dt00463aStructural characterization and biological evaluation of a clioquinol-ruthenium complex with copper-independent antileukaemic activity下载
    10.1016/j.mrgentox.2014.07.002Evaluation of potential antigenotoxic, cytotoxic and proapoptotic effects of the olive oil by-product "alperujo", hydroxytyrosol, tyrosol and verbascoside下载
    10.1073/pnas.93.25.14559BAX-induced cell death may not require interleukin 1 beta-converting enzyme-like proteases下载
    10.1006/bbrc.1997.7370Recombinant caspase-3 expressed in Pichia pastoris is fully activated and kinetically indistinguishable from the native enzyme下载
    10.1084/jem.191.1.33The HIV-1 viral protein R induces apoptosis via a direct effect on the mitochondrial permeability transition pore下载
    10.1016/j.lfs.2006.12.013Effect of testosterone on oxidative stress and cell damage induced by 3-nitropropionic acid in striatum of ovariectomized rats下载
    10.1111/j.1349-7006.2008.00868.xDifferential responsiveness of human hepatoma cells versus normal hepatocytes to TRAIL in combination with either histone deacetylase inhibitors or conventional cytostatics下载
    10.1016/j.cbi.2009.06.003N-acetylcysteine, coenzyme Q10 and superoxide dismutase mimetic prevent mitochondrial cell dysfunction and cell death induced by d-galactosamine in primary culture of human hepatocytes下载
    10.1002/2211-5463.12044Production of biologically active IL-36 family cytokines through insertion of N-terminal caspase cleavage motifs下载
    10.1016/j.neuropharm.2016.11.019Inhibition of cathepsin X reduces the strength of microglial-mediated neuroinflammation下载
  • 多肽Ac-Asp-Glu-Val-Asp-AFC的合成步骤:

    1、合成CTC树脂:称取1.41g CTC Resin(如初始取代度约为0.43mmol/g)和0.73mmol Fmoc-Asp(OtBu)-OH于反应器中,加入适量DCM溶解氨基酸(需要注意,此时CTC树脂体积会增大好几倍,避免DCM溶液过少),再加入1.82mmol DIPEA(Mw:129.1,d:0.740g/ml),反应2-3小时后,可不抽滤溶液,直接加入1ml的HPLC级甲醇,封端半小时。依次用DMF洗涤2次,甲醇洗涤1次,DCM洗涤一次,甲醇洗涤一次,DCM洗涤一次,DMF洗涤2次(这里使用甲醇和DCM交替洗涤,是为了更好地去除其他溶质,有利于后续反应)。得到  Fmoc-Asp(OtBu)-CTC Resin。结构图如下:

    2、脱Fmoc:加3倍树脂体积的20%Pip/DMF溶液,鼓氮气30分钟,然后2倍树脂体积的DMF 洗涤5次。得到 H2N-Asp(OtBu)-CTC Resin 。(此步骤脱除Fmoc基团,茚三酮检测为蓝色,Pip为哌啶)。结构图如下:

    3、缩合:取1.82mmol Fmoc-Val-OH 氨基酸,加入到上述树脂里,加适当DMF溶解氨基酸,再依次加入3.64mmol DIPEA,1.73mmol HBTU。反应30分钟后,取小样洗涤,茚三酮检测为无色。用2倍树脂体积的DMF 洗涤3次树脂。(洗涤树脂,去掉残留溶剂,为下一步反应做准备)。得到Fmoc-Val-Asp(OtBu)-CTC Resin。氨基酸:DIPEA:HBTU:树脂=3:6:2.85:1(摩尔比)。结构图如下:

    4、依次循环步骤二、步骤三,依次得到

    H2N-Val-Asp(OtBu)-CTC Resin

    Fmoc-Glu(OtBu)-Val-Asp(OtBu)-CTC Resin

    H2N-Glu(OtBu)-Val-Asp(OtBu)-CTC Resin

    Fmoc-Asp(OtBu)-Glu(OtBu)-Val-Asp(OtBu)-CTC Resin

    以上中间结构,均可在专肽生物多肽计算器-多肽结构计算器中,一键画出。

    最后再经过步骤二得到 H2N-Asp(OtBu)-Glu(OtBu)-Val-Asp(OtBu)-CTC Resin,结构如下:

    5、乙酸酐反应连接:在上述树脂中,加入适当DMF后,再加入1.82mmol 乙酸酐到树脂中,再加入3.64mmol DIPEA、1.73mmol HBTU,鼓氮气反应30分钟。用2倍树脂体积的DMF 洗涤3次树脂(洗涤树脂,去掉残留溶剂,为下一步反应做准备)。 得到Ac-Asp(OtBu)-Glu(OtBu)-Val-Asp(OtBu)-CTC Resin。 结构如下:

    6、全保护切割:配置0.5%TFA/DCM溶液,溶液体积约为树脂体积的3倍。再次用DCM洗涤树脂2遍(去除残留DMF),后将配置好的溶液倒入到反应器中,反应30分钟。抽滤树脂,收集滤液(此时多肽已经从树脂上分离,存在于滤液中)。多肽序列为 Ac-Asp(OtBu)-Glu(OtBu)-Val-Asp(OtBu)-CTC Resin。 在滤液中添加DIEPA,调PH至7-8。用饱和NaHCO3洗涤滤液,分离出DCM层溶液。可适当旋蒸DCM层溶液,减少有机溶剂。再次加入1或2倍体积的乙酸乙酯,用稀HCl溶液调PH至微酸性,将多肽从DCM层萃取到乙酸乙酯层。用饱和NaCl洗涤2次乙酸乙酯层。用无水硫酸镁吸收乙酸乙酯层的水分。通过减压旋蒸,直接将乙酸乙酯完全旋蒸掉,得到晶体状固体多肽,用于下一步C端反应。或通过减压旋蒸保留适量乙酸乙酯的溶液体积,加入冰乙醚析出 多肽,然后对多肽进行烘干操作即可用于下一步C端反应。Ac-Asp(OtBu)-Glu(OtBu)-Val-Asp(OtBu)-COOH的结构图如下。

    7、7-氨基-4-三氟甲基香豆素反应连接:在上述树脂中,加入适当DMF后,再加入1.82mmol 7-氨基-4-三氟甲基香豆素到树脂中,再加入3.64mmol DIPEA、1.73mmol HBTU,鼓氮气反应30分钟。用2倍树脂体积的DMF 洗涤3次树脂(洗涤树脂,去掉残留溶剂,为下一步反应做准备)。 得到 Ac-Asp(OtBu)-Glu(OtBu)-Val-Asp(OtBu)-AFC。 结构如下:

    8、切割:6倍树脂体积的切割液(或每1g树脂加8ml左右的切割液),摇床摇晃 2小时,过滤掉树脂,用冰无水乙醚沉淀滤液,并用冰无水乙醚洗涤沉淀物3次,最后将沉淀物放真空干燥釜中,常温干燥24小试,得到粗品Ac-Asp-Glu-Val-Asp-AFC。结构图见产品结构图。

    切割液选择:1)TFA:H2O=95%:5%、TFA:H2O=97.5%:2.5%

    2)TFA:H2O:TIS=95%:2.5%:2.5%

    3)三氟乙酸:茴香硫醚:1,2-乙二硫醇:苯酚:水=87.5%:5%:2.5%:2.5%:2.5%

    (前两种适合没有容易氧化的氨基酸,例如Trp、Cys、Met。第三种适合几乎所有的序列。)

    9、纯化冻干:使用液相色谱纯化,收集目标峰液体,进行冻干,获得蓬松的粉末状固体多肽。不过这时要取小样复测下纯度 是否目标纯度。

    10、最后总结:

    杭州专肽生物技术有限公司(ALLPEPTIDE https://www.allpeptide.com)主营定制多肽合成业务,提供各类长肽,短肽,环肽,提供各类修饰肽,如:荧光标记修饰(CY3、CY5、CY5.5、CY7、FAM、FITC、Rhodamine B、TAMRA等),功能基团修饰肽(叠氮、炔基、DBCO、DOTA、NOTA等),同位素标记肽(N15、C13),订书肽(Stapled Peptide),脂肪酸修饰肽(Pal、Myr、Ste),磷酸化修饰肽(P-Ser、P-Thr、P-Tyr),环肽(酰胺键环肽、一对或者多对二硫键环),生物素标记肽,PEG修饰肽,甲基化修饰肽

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