作为 CCK 的拮抗剂,PP 抑制胰腺的沉淀。PP 还作用于胃肠蠕动、食物摄入和新陈代谢。
编号:158392
CAS号:1816258-36-2
单字母:Biotinyl-APLEPVYPGDNATPEQMAQYAADLRRYINMLTRPRY-CONH2
编号: | 158392 |
中文名称: | 胰腺多肽Biotin-PancreaticPoly Peptide , human |
英文名: | Biotin-PancreaticPoly Peptide , human |
CAS号: | 1816258-36-2 |
单字母: | Biotinyl-APLEPVYPGDNATPEQMAQYAADLRRYINMLTRPRY-CONH2 |
三字母: | Biotinyl N端生物素标记 -Ala丙氨酸 -Pro脯氨酸 -Leu亮氨酸 -Glu谷氨酸 -Pro脯氨酸 -Val缬氨酸 -Tyr酪氨酸 -Pro脯氨酸 -Gly甘氨酸 -Asp天冬氨酸 -Asn天冬酰胺 -Ala丙氨酸 -Thr苏氨酸 -Pro脯氨酸 -Glu谷氨酸 -Gln谷氨酰胺 -Met甲硫氨酸 -Ala丙氨酸 -Gln谷氨酰胺 -Tyr酪氨酸 -Ala丙氨酸 -Ala丙氨酸 -Asp天冬氨酸 -Leu亮氨酸 -Arg精氨酸 -Arg精氨酸 -Tyr酪氨酸 -Ile异亮氨酸 -Asn天冬酰胺 -Met甲硫氨酸 -Leu亮氨酸 -Thr苏氨酸 -Arg精氨酸 -Pro脯氨酸 -Arg精氨酸 -Tyr酪氨酸 -CONH2C端酰胺化 |
氨基酸个数: | 36 |
分子式: | C195H301N55O56S3 |
平均分子量: | 4408.01 |
精确分子量: | 4405.16 |
等电点(PI): | 11.31 |
pH=7.0时的净电荷数: | 4 |
平均亲水性: | -0.11333333333333 |
疏水性值: | -0.74 |
外观与性状: | 白色粉末状固体 |
消光系数: | 5960 |
来源: | 人工化学合成,仅限科学研究使用,不得用于人体。 |
纯度: | 95%、98% |
盐体系: | 可选TFA、HAc、HCl或其它 |
生成周期: | 2-3周 |
储存条件: | 负80℃至负20℃ |
标签: | 生物素标记肽(Biotinyl) 胰腺多肽 |
As antagonist of CCK, PP inhibits pancreatic sedretion. PP also acts on the gastrointestinal motility, food intake, and metabolism.
专肽生物合成用于蛋白质-蛋白质相互作用研究的生物素化肽。尽管生物素可以在 N 端或 C 端引入(通过赖氨酸残基),但我们建议使用 N 端修饰,因为它成本低、成功率高、周转时间短且易于操作。因为多肽合成是从 C 端到 N 端合成的,因此,N 端修饰是 SPPS步骤的最后一步,不需要额外的特定缩合步骤。相比之下,C 端修饰需要额外的步骤,并且通常更复杂。当然,原则上生物素可以定位在任何地方。
生物素可以通过多种不同的接头或间隔物与肽分离。尽管如此,还是建议包含一个灵活的间隔物,例如 Ahx(一个 6 碳接头),以使生物素标签更加稳定或灵活。
专肽生物在 N 端或 C 端提供生物素化:生物素-N 端、赖氨酸-生物素-肽中间和赖氨酸-生物素-C 端。
专肽生物还可以使用 Ahx 接头或长碳 (LC) 接头提供生物素化:生物素-Ahx-N 末端、Lys-Ahx-生物素-肽中间、Lys-Ahx-生物素-C-末端。
(生物素结构)
示例:
GRGDS在N端和C端标记生物素的结构展示。
1、GRGDS在N端标记生物素,不增加Ahx 接头
2、GRGDS在N端标记生物素,增加一个Ahx 接头
3、GRGDS在C端标记生物素,不增加Ahx 接头
4、GRGDS在C端标记生物素,增加一个Ahx 接头。
DOI | 名称 | |
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10.1210/jc.2003-030630 | Pancreatic polypeptide reduces appetite and food intake in humans | 下载 |
10.1002/ijc.20948 | Neuropeptide Y receptors in renal cell carcinomas and nephroblastomas | 下载 |
10.1038/oby.2006.180 | Physiological evidence for the involvement of peptide YY in the regulation of energy homeostasis in humans | 下载 |
10.1016/j.peptides.2012.06.008 | Surface masking shapes the traffic of the neuropeptide Y Y2 receptor | 下载 |
10.1002/oby.20534 | PYY3-36 and pancreatic polypeptide reduce food intake in an additive manner via distinct hypothalamic dependent pathways in mice | 下载 |
10.3390/ijms15034856 | Dimers of G-protein coupled receptors as versatile storage and response units | 下载 |
10.1021/acs.jmedchem.6b00310 | Optically Pure, Structural, and Fluorescent Analogues of a Dimeric Y4 Receptor Agonist Derived by an Olefin Metathesis Approach | 下载 |
10.1021/acs.bioconjchem.6b00376 | Identification of a Cyanine-Dye Labeled Peptidic Ligand for Y1R and Y4R, Based upon the Neuropeptide Y C-Terminal Analogue, BVD-15 | 下载 |
10.1016/0167-0115(93)90435-b | Proteolytic processing of neuropeptide Y and peptide YY by dipeptidyl peptidase IV | 下载 |
10.1371/journal.pone.0120346 | Cytotoxic helix-rich oligomer formation by melittin and pancreatic polypeptide | 下载 |
多肽Biotin-Ala-Pro-Leu-Glu-Pro-Val-Tyr-Pro-Gly-Asp-Asn-Ala-Thr-Pro-Glu-Gln-Met-Ala-Gln-Tyr-Ala-Ala-Asp-Leu-Arg-Arg-Tyr-Ile-Asn-Met-Leu-Thr-Arg-Pro-Arg-Tyr-NH2的合成步骤:
1、合成MBHA树脂:取若干克MBHA树脂(如初始取代度为0.5mmol/g)和1倍树脂摩尔量的Fmoc-Linker-OH加入到反应器中,加入DMF,搅拌使氨基酸完全溶解。再加入树脂2倍量的DIEPA,搅拌混合均匀。再加入树脂0.95倍量的HBTU,搅拌混合均匀。反应3-4小时后,用DMF洗涤3次。用2倍树脂体积的10%乙酸酐/DMF 进行封端30分钟。然后再用DMF洗涤3次,甲醇洗涤2次,DCM洗涤2次,再用甲醇洗涤2次。真空干燥12小时以上,得到干燥的树脂{Fmoc-Linker-MHBA Resin},测定取代度。这里测得取代度为 0.3mmol/g。结构如下图:
2、脱Fmoc:取2.1g的上述树脂,用DCM或DMF溶胀20分钟。用DMF洗涤2遍。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-Linker-MBHA 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1.89mmol Fmoc-Tyr(tBu)-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3.78mmol DIPEA,1.8mmol 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-Tyr(tBu)-Linker-MBHA 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-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Glu(OtBu)-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Glu(OtBu)-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Leu-Glu(OtBu)-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Leu-Glu(OtBu)-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Pro-Leu-Glu(OtBu)-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
H2N-Pro-Leu-Glu(OtBu)-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin
Fmoc-Ala-Pro-Leu-Glu(OtBu)-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA 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-Ala-Pro-Leu-Glu(OtBu)-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHA Resin,结构如下:
5、生物素反应连接:在上述树脂中,加入适当DMF后,再加入1.89mmol 生物素到树脂中,再加入3.78mmol DIPEA、1.8mmol 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Biotin-Ala-Pro-Leu-Glu(OtBu)-Pro-Val-Tyr(tBu)-Pro-Gly-Asp(OtBu)-Asn(Trt)-Ala-Thr(tBu)-Pro-Glu(OtBu)-Gln(Trt)-Met-Ala-Gln(Trt)-Tyr(tBu)-Ala-Ala-Asp(OtBu)-Leu-Arg(Pbf)-Arg(Pbf)-Tyr(tBu)-Ile-Asn(Trt)-Met-Leu-Thr(tBu)-Arg(Pbf)-Pro-Arg(Pbf)-Tyr(tBu)-Linker-MBHAResin。 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Biotin-Ala-Pro-Leu-Glu-Pro-Val-Tyr-Pro-Gly-Asp-Asn-Ala-Thr-Pro-Glu-Gln-Met-Ala-Gln-Tyr-Ala-Ala-Asp-Leu-Arg-Arg-Tyr-Ile-Asn-Met-Leu-Thr-Arg-Pro-Arg-Tyr-NH2。结构图见产品结构图。
切割液选择:1)TFA:H2O=95%: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,甲基化修饰肽等。
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