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Mating Factor α (1-6) 是 Saccharomyces cerevisiae α-配位型细胞产生的配位因子,可抑制细胞内DNA合成(DNA synthesis)的起始。
编号:199853
CAS号:65418-88-4
单字母:H2N-WHWLQL-OH
交配因子 α(1–6) 是一种短信息素片段,用于研究酵母信号中的多肽与受体排列。其紧凑结构支持对激活至关重要的转角基序评估。研究人员用它分析信息素识别的最小决定因素。该多肽有助于解析早期信号事件。
Mating Factor α (1–6) is a short pheromone fragment used to study peptide–receptor alignment in yeast signaling. Its compact structure supports evaluation of turn motifs crucial to activation. Researchers apply it to analyze minimal determinants of pheromone recognition. The peptide aids dissection of early signaling events.
Mating Factor α (1-6) 是 Saccharomyces cerevisiae α-配位型细胞产生的配位因子,可抑制细胞内DNA合成(DNA synthesis)的起始。
| DOI | 名称 | |
|---|---|---|
| 10.1021/bi026766o | Aromatic residues at the extracellular ends of transmembrane domains 5 and 6 promote ligand activation of the G protein-coupled alpha-factor receptor | 下载 |
| 10.1021/bi0614939 | Accessibility of cysteine residues substituted into the cytoplasmic regions of the alpha-factor receptor identifies the intracellular residues that are available for G protein interaction | 下载 |
| 10.1074/mcp.M600404-MCP200 | Mild performic acid oxidation enhances chromatographic and top down mass spectrometric analyses of histones | 下载 |
| 10.1002/msb.134886 | Periodic mRNA synthesis and degradation co-operate during cell cycle gene expression | 下载 |
| 10.1016/0006-291x(77)90211-x | Synthesis of the mating factor of Saccharomyces cerevisiae and its truncated peptides : the structure-activity relationship | 下载 |
| 10.1016/0006-291x(77)90514-9 | Solid phase peptide synthesis of alpha-factor, a yeast mating pheromone | 下载 |
| 10.1093/oxfordjournals.jbchem.a131864 | Purification and amino acid sequence of mating factor from Saccharomyces cerevisiae | 下载 |
| 10.3109/10409238609113612 | Structure-activity relationships of the yeast alpha-factor | 下载 |
| 10.1016/0006-291x(78)91365-7 | Site of action of mating factor in a-mating type cell of Saccharomyces cerevisiae | 下载 |
| 10.1016/0006-291x(79)90214-6 | Amino acid substitution of mating factor of Saccharomyces cerevisiae structure-activity relationship | 下载 |
| 10.1073/pnas.77.4.1898 | Yeast mating pheromone alpha factor inhibits adenylate cyclase | 下载 |
| 10.1016/s0006-291x(83)80216-2 | Yeast pheromone alpha-factor is synthesized as a high molecular weight precursor | 下载 |
| 10.1016/0014-4827(81)90231-7 | The effect of alpha-factor on the rate of cell-cycle initiation in Saccharomyces cerevisiae: alpha-factor modulates transition probability in yeast | 下载 |
| 10.1016/s0014-5793(00)01134-0 | The molecular chaperone Cdc37 is required for Ste11 function and pheromone-induced cell cycle arrest | 下载 |
| 10.1021/bi0494018 | A fluorescent alpha-factor analogue exhibits multiple steps on binding to its G protein coupled receptor in yeast | 下载 |
| 10.1016/j.celrep.2014.03.010 | Rif1 controls DNA replication timing in yeast through the PP1 phosphatase Glc7 | 下载 |
多肽H2N-Trp-His-Trp-Leu-Gln-Leu-COOH的合成步骤:
1、合成CTC树脂:称取0.53g CTC Resin(如初始取代度约为1.1mmol/g)和0.7mmol Fmoc-Leu-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1.75mmol 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-Leu-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-Leu-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1.75mmol Fmoc-Gln(Trt)-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3.5mmol DIPEA,1.66mmol 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-Gln(Trt)-Leu-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-Gln(Trt)-Leu-CTC Resin
Fmoc-Leu-Gln(Trt)-Leu-CTC Resin
H2N-Leu-Gln(Trt)-Leu-CTC Resin
Fmoc-Trp(Boc)-Leu-Gln(Trt)-Leu-CTC Resin
H2N-Trp(Boc)-Leu-Gln(Trt)-Leu-CTC Resin
Fmoc-His(Trt)-Trp(Boc)-Leu-Gln(Trt)-Leu-CTC Resin
H2N-His(Trt)-Trp(Boc)-Leu-Gln(Trt)-Leu-CTC Resin
Fmoc-Trp(Boc)-His(Trt)-Trp(Boc)-Leu-Gln(Trt)-Leu-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-Trp(Boc)-His(Trt)-Trp(Boc)-Leu-Gln(Trt)-Leu-CTC Resin,结构如下:

5、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H2N-Trp-His-Trp-Leu-Gln-Leu-COOH。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。)
6、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。
7、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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