CJC1295 is a synthetic growth hormone-releasing hormone (GHRH) analog with a molecular formula of C152H252N44O42 and a relative molecular mass of 3367.2 g/mol. The chemical structure of CJC1295 is similar to endogenous GHRH, but it has been modified and modified to improve its biological stability and duration of drug effect, thus becoming a new drug widely used in the fields of life science and medicine. After tireless research by many scientific researchers, a variety of synthetic methods have been discovered, and more pure products have been developed, which provides convenience for human life. Several common synthetic methods are described below.
Regarding CJC 1295, we have 3 webpages to introduce and describe the product in detail according to different ingredients, namely:
CJC 1295 With DAC : https://www.bloomtechz.com/synthetic-chemical/peptide/cjc-1295-with-dac-cas-863288-34-0.html
CJC 1295 Peptide : https://www.bloomtechz.com/synthetic-chemical/peptide/cjc-1295-peptide-cas-863288-34-0.html
CJC-1295 Acetate : https://www.bloomtechz.com/synthetic-chemical/peptide/cjc-1295-acetate-cas-863288-34-0.html
1. Solid-phase synthesis method:
Solid phase synthesis is one of the main synthesis methods of CJC1295. First, the C-terminal substituted fluorescein protecting group was immobilized on the epoxy compound, and then the N-terminal dipeptide and side chain were added. After multiple reactions and ion exchange, CJC1295 with high purity was finally obtained. The method is simple in operation, high in purity and stable in yield, and has been applied to the industrial production of CJC1295.
2. Liquid phase synthesis method:
Liquid phase synthesis is another commonly used synthesis method of CJC1295. This method has many steps. Firstly, it needs to synthesize dipeptide precursor and insulin analogue-1 (IGF1), and then prepare CJC1295 through multiple reactions. The advantages of the liquid-phase synthesis method are high yield, simple operation, and the ability to precisely adjust the reaction conditions and the purity of intermediates, thereby controlling the structure and properties of the product.
3. Solid-liquid phase synthesis method:
The solid-liquid phase synthesis method combines the solid phase synthesis method and the liquid phase synthesis method, and is an efficient and versatile synthesis method. First, the partial peptide chain of CJC1295 was synthesized on the solid phase, and then it was coupled with insulin analogue-1 (IGF1) in the liquid phase, and then the final product was obtained through multiple ion exchange and deprotection reactions. The advantages of the solid-liquid phase synthesis method are high production efficiency, controllable reaction conditions, and high-purity products.
4. Biosynthesis:
The biosynthesis method uses the gene manipulation technology in the organism to transform the genetically engineered strain into a CJC1295 production plant, which is an emerging CJC1295 synthesis method. The biosynthesis method of JC-1295 is synthesized by genetic engineering technology in Escherichia coli and other recombinant expression systems. This method usually includes gene cloning, construction of recombinant plasmids, transformation and expression of E. coli, purification and quality control steps. This method can introduce the target gene from the foreign source into the DNA inside the bacterium, and use the organism's own metabolic pathway to synthesize the required CJC1295. Compared with the traditional chemical synthesis method, the biosynthesis method does not need to use chemical reagents, does not produce environmental pollution and product impurities, and also has higher yield and purity. It is a very promising method for the production of CJC1295.
detailed steps:
(1.) Cloning of genes:
During the biosynthesis of CJC-1295, the gene sequence corresponding to CJC-1295 needs to be obtained from the human genome first. This step can be achieved by various methods, such as PCR amplification, high-throughput sequencing and other technologies.
(2.) Construction of recombinant plasmids:
Cloning the CJC-1295 gene into an appropriate expression vector, generally choose an expression vector that can be expressed in Escherichia coli, such as pET series plasmids. These expression vectors usually contain promoters, initiators, terminators, selective resistance genes, multiple cloning sites and other elements.
(3.) Escherichia coli transformation and expression:
The above-mentioned recombinant plasmid was transformed into Escherichia coli, and after a series of operations such as induction, the bacterium produced CJC-1295 polypeptide, and CJC-1295 had been embedded in the polypeptide chain at this time. At this stage, the bacteria need to be optimized and cultivated to achieve the best production efficiency and toxicity control.
(4.) Purification:
Through a series of separation and purification steps such as centrifugation, lysis, column chromatography, ultrafiltration, electrophoresis, and dialysis, high-purity CJC-1295 can be obtained. Among them, column chromatography is the most commonly used method in this step, and reversed-phase high-performance liquid chromatography (RP-HPLC) or ion exchange chromatography (IEX) column is usually selected for separation. In column chromatography, CJC-1295 is separated by gradient elution, and then the purified product is detected and identified by mass spectrometry and other tools.
(5.) Quality control:
The last step is to control the quality of the synthesized CJC-1295. This process mainly includes testing the physical and chemical properties, biological activity, and structural identification of CJC-1295. Among them, the detection of physical and chemical properties mainly includes appearance, pH value, solubility, amino acid analysis, etc.; the detection of biological activity mainly includes in vivo and in vitro growth hormone release experiments, etc.; structural identification is through mass spectrometry, nuclear magnetic resonance, amino acid sequence analysis and other tools CJC-1295 was identified to confirm its quality and purity.
The biosynthesis method of CJC-1295 is an effective and reliable method, which can be synthesized in expression systems such as Escherichia coli by genetic engineering technology, so as to obtain high-purity and high-quality CJC-1295 polypeptide. The synthesis process requires multiple steps, such as gene cloning, recombinant plasmid construction, E. coli transformation and expression, purification and quality control, etc. Each step needs to be handled carefully to ensure the high efficiency and quality of the synthetic CJC-1295 .
In conclusion, CJC1295 is an important ghrelin analogue with a wide range of medical and life science applications. The synthesis methods mainly include solid-phase synthesis, liquid-phase synthesis, solid-liquid phase synthesis and biosynthesis, and each method has its advantages and disadvantages and application range. With the continuous development and progress of science and technology, the production methods of CJC1295 will also be increasingly perfect and diversified.