CEF6
目录号 : GC32329
CEF6是由9个氨基酸构成的多肽，与流感病毒H1N1的核衣壳蛋白的第418-426位氨基酸序列相对应。
Cas No.:913545-15-0
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
CEF6 is a 9-aa-long peptide corresponding to aa 418-426 of the influenza A virus (H1N1) nucleocapsid protein.
[1]. Yu K, et al. shRNA?mediated NP knockdown inhibits the apoptosis of cardiomyocytes induced by H1N1pdm2009 influenza virus. Mol Med Rep. 2017 Aug;16(2):1376-1382.
| Cas No. | 913545-15-0 | SDF | |
| Canonical SMILES | Leu-Pro-Phe-Asp-Lys-Thr-Thr-Val-Met | ||
| 分子式 | C48H78N10O14S1 | 分子量 | 1051.26 |
| 溶解度 | Soluble in DMSO | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 0.9512 mL | 4.7562 mL | 9.5124 mL |
| 5 mM | 0.1902 mL | 0.9512 mL | 1.9025 mL |
| 10 mM | 0.0951 mL | 0.4756 mL | 0.9512 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Statistically optimized ceftriaxone sodium biotransformation through Achromobacter xylosoxidans strain CEF6: an unusual insight for bioremediation
J Basic Microbiol 2018 Feb;58(2):120-130.PMID:29141102DOI:10.1002/jobm.201700497.
The present study underlines a unique promising approach toward efficient biotransformation of ceftriaxone sodium (Ceftx), a highly frequent prescribed cephalosporin antibiotic, by a newly bacterium namely Achromobacter xylosoxidans strain CEF6 isolated from Ceftx contaminated raw materials in pharmaceutical industries. A three step sequential statistical-mathematical approach (Plackett-Burman design [PBD], Central Composite Design [CCD], and ridge-canonical analyses) was anticipated to optimize the biotransformation process. Ceftx concentration and medium volume: bottle volume ratio, two key determinants, significantly (p < 0.05) affected the process outcome deduced by regression analysis of PBD' data. CCD and ridge-canonical analyses localized the optimal levels of Ceftx concentration and medium volume: 250 ml bottle volume ratio to be 0.39 and 7.973 g Ceftx/L modified tryptic soy broth achieving Ceftx biotransformation (100%) after 39 h under aerobic static conditions at 30 掳C, irrespectively deduced via HPLC analysis. Impressively, only one of five Ceftx byproducts was detected by the end of the biotransformation process. To the best of authors' knowledge, this is the first report addressing a detailed study regarding efficient biotransformation of Ceftx by single bacterium not bacterial consortium under aerobic conditions. Present data would greatly encourage applying this approach for decontamination of some Ceftx contaminated environmental sites.
The stage-, strain- and species-specificity of a Schistosoma mansoni egg antigen fraction (CEF6) with serodiagnostic potential
Trans R Soc Trop Med Hyg 1984;78(4):460-70.PMID:6541379DOI:10.1016/0035-9203(84)90061-0.
The immunological properties of CEF6, a cationic fraction of Schistosoma mansoni egg homogenate (SEA) containing two antigens, omega 1 and alpha 1, have been further investigated in two assays, immunoelectrophoresis (IEP) and enzyme immunoassay (ELISA). Although precipitating antibodies to antigen omega 1 were amongst the first to appear in mice with patient infections, IgG reactivity against CEF6 in ELISA trailed somewhat behind that of IgG activity against unfractionated SEA. Specificity of the two antigens in CEF6 to the egg stage of the parasite life-cycle was demonstrated by the failure of immunizations with cercarial or worm antigens to induce antibodies which reacted against either alpha 1 or omega 1 in IEP, or against CEF6 in ELISA. Mice infected with S. mansoni strains derived from geographically distinct areas, including the Caribbean, South America and Africa, produced antibodies which were reactive against CEF6 prepared from eggs of a Puerto Rican S. mansoni strain that had been maintained in the laboratory for many years. Of the different precipitating anti-SEA antibody species induced by the various S. mansoni strains in mice, those reactive against antigen omega 1 appeared to be present in highest titre. Sera from mice chronically infected with S. japonicum and S. haematobium failed to precipitate CEF6 in IEP and were less reactive with CEF6 than with S. mansoni SEA in ELISA. However, similar degrees of ELISA reactivity against S. mansoni CEF6 and SEA were given by sera from mice infected with S. bovis. The results support the notion that the antigens in CEF6 may be useful in the serodiagnosis of schistosomiasis mansoni infections.
Serodiagnosis of mansonian schistosomiasis with CEF6, a cationic antigen fraction of Schistosoma mansoni eggs
Dev Biol Stand 1985;62:63-73.PMID:2422078doi
Studies of the host-parasite relationship of Schistosoma mansoni in mice revealed that the parasite's eggs were toxic to liver cells of immunosuppressed hosts. Attempts to identify the toxic egg constituent led to the isolation of a fraction CEF6 from crude egg homogenate by cation exchange chromatography. CEF6 contains two cationic antigens, omega 1 and alpha 1, the former being recognized as the putative hepatotoxin. In an initial assessment of its serodiagnostic potential in enzyme immunoassay (ELISA), CEF6 yielded an enhanced degree of sensitivity and specificity when compared with crude egg homogenate, and a subsequent 'blind' inter-laboratory collaborative study confirmed that in certain circumstances the use of a purified fraction such as CEF6 may be advantageous. We here review the experimental work leading up to the isolation of CEF6, and summarize the results so far obtained from its use as a diagnostic aid in human schistosomiasis.
Schistosoma mansoni cationic egg antigens (CEF6): immunoserology with oxamniquine-treated patients and involvement of CEF6 in the circumoval precipitin reaction
Am J Trop Med Hyg 1988 May;38(3):508-14.PMID:3152779DOI:10.4269/ajtmh.1988.38.508.
The serologic activity of a cationic fraction (denoted CEF6) of Schistosoma mansoni soluble egg antigen was compared in an ELISA with that of the unpurified soluble egg antigen for the ability to detect human infections and for the prediction of chemotherapeutic success in patients followed up to 5 years post-treatment with oxamniquine. The cationic fraction correctly identified 100% of 20 patients as infected with S. mansoni; moreover, 50% (10 of 20) seroconverted to negative by 2 years post-treatment and 100% of 15 patients tested were negative 5 years post-treatment. In general, the cationic fraction was superior to the unpurified soluble egg antigen for the detection of infection and for the prediction of chemotherapeutic success. The cationic fraction also exhibited greater immunologic specificity over the unpurified soluble egg antigen in that the latter exhibited higher titers than the former to antibodies against heterologous parasite antigens (Fasciola hepatica, Clonorchis sinensis, Paragonimus westermani adult worms; Trichinella spiralis larvae). Moreover, rabbit antisera raised against egg antigens isolated from the precipitation formed when fresh S. mansoni eggs are incubated with S. mansoni infection of immunization sera (known as circumoval precipitin reactions or COP) reacted strongly with the cationic fraction in ELISA. In addition, antiserum to the cationic fraction as well as antisera against either of the two antigenic components of this fraction, known as antigens alpha 1 and omega 1, all give positive COP reactions when incubated with fresh S. mansoni eggs.(ABSTRACT TRUNCATED AT 250 WORDS)
The detection of antibodies against Schistosoma mansoni soluble egg antigens (SEA) and CEF6 in ELISA, before and after chemotherapy
Ann Trop Med Parasitol 2003 Oct;97(7):697-709.PMID:14613629DOI:10.1179/000349803225002354.
Circulating IgG antibody reactivity and excreted egg counts were investigated in 489 Kenyans given chemotherapy for schistosomiasis mansoni. Antibody reactivity was measured in ELISA, using either unfractionated aqueous soluble constituents of Schistosoma mansoni eggs (SEA) or CEF6 (a soluble fraction of S. mansoni eggs containing two cationic antigens) as the antigen source. Antibody reactivity for each antigen source was strongly associated with egg counts, both pre- and post-treatment. Approximately 6 months after chemotherapy, egg counts were zero in 84% of the subjects. The mean optical densities (OD) measured in the post-treatment ELISA were 60% (CEF6) or 45% (SEA) lower than the pre-treatment values, the reduction in the OD with CEF6 as antigen source being significantly greater than that observed with SEA (P <0.001). The usefulness of an assay for antibody reactivity in monitoring the effects of the treatment of schistosomiasis is discussed.