Blasticidina S HCl (10 mg/ml)
Blasticidina S HCl (10 mg/ml)
Gibco™

Blasticidina S HCl (10 mg/ml)

La blasticidina S es un antibiótico peptídico nucleósido aislado de Streptomyces griseochromogenes. Es un potente inhibidor de la síntesis deMás información
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Número de catálogoCantidad
A111390220 mL
A111390310 x 1 mL
Número de catálogo A1113902
Precio (MXN)
-
Cantidad:
20 mL
La blasticidina S es un antibiótico peptídico nucleósido aislado de Streptomyces griseochromogenes. Es un potente inhibidor de la síntesis de proteínas tanto en células procariotas como eucariotas, pero también es activo contra hongos, nematodos, y células tumorales. La blasticidina S actúa bloqueando la hidrólisis de peptidil-ARNt inducida por factores de liberación e inhibe la formación de enlaces peptídicos. Se utiliza como agente de selección tanto en células de mamíferos como en células bacterianas. La concentración de trabajo recomendada oscila entre 1 y 30 μg/ml en función de la línea de células y 25–100 μg/ml para selección bacteriana. La muerte celular se produce rápidamente, y las líneas de células de mamíferos estables y resistentes a la blasticidina se pueden generar en menos de una semana.

La resistencia a la blasticidina S se debe a BSR y BSD, aisladas de Bacillus cereus K55-S y Aspergillus terreus, respectivamente. El gen de resistencia a la BSR codifica la blasticidina S deaminasa, que cataliza la conversión de blasticidina S en deaminohidroxiblasticidina S. La deaminohidroxiblasticidina S es un derivado sin actividad biológica de la blasticidina S y no interactúa con los ribosomas procariotas o eucariotas ni los inhibe. El gen de resistencia a la BSD también codifica una blasticidina S deaminasa, que cataliza una reacción similar a la BSR deaminasa. Con fines de selección de bacterias, el contenido de sal del medio LB debe mantenerse bajo (inferior al 90 mM) y el pH no debe superar los 7,0 para conservar la actividad de la basticidina S. Se recomienda una curva de destrucción para determinar la concentración mínima efectiva de blasticidina S para eliminar células no resistentes.

Aplicaciones
Consultar protocolos detallados sobre la selección de blasticidina en células de mamíferos, E. coli y levadura.
Para uso exclusivo en investigación. No apto para uso en procedimientos diagnósticos.
Especificaciones
Tipo de célulaCélulas eucariotas, células procariotas
Concentración10 mg/mL
Tipo de cultivoCultivo celular de mamíferos, cultivo celular de insectos
Línea de productosGibco
Cantidad20 mL
Duración de almacenamiento9 meses
FormularioLíquido
Tipo de productoBlasticidina
EsterilidadEstéril con filtro
Con aditivosÁcido 4-(2-hidroxietil)piperazin-1-iletanosulfónico (HEPES)
Unit SizeEach
Contenido y almacenamiento
Condiciones de almacenamiento: De – 5 °C a – 20 °C (proteger de la luz)
Condiciones de envío: Hielo seco
Vida útil: 9 meses a partir de la fecha de fabricación

Preguntas frecuentes

Which of your antibiotics (Geneticin, Zeocin, Hygromycin B, Blasticidin, and Puromycin) can be used together for stable selection in mammalian cells?

All of our antibiotics (Geneticin, Zeocin, Hygromycin B, Blasticidin, and Puromycin) can be used together for making multiple stable cell lines. However, kill curves will need to be performed for each combination of antibiotics since sensitivity to a given antibiotic tends to increase when combined with other antibiotics.

What are the recommended concentrations of antibiotics to use for selection in prokaryotes and eukaryotes?

For best results, optimal concentrations for selection should be determined empirically in each unique experiment through dose response curves. However, to get a general idea of concentrations that have worked for individual cell types, please click on the following url: http://www.thermofisher.com/us/en/home/life-science/cell-culture/transfection/selection.html or type in “Selection Antibiotics” into our main search on www.thermofisher.com.

What is the mode of action on the following antibiotics: Blasticidin, Geneticin (G418), Hygromycin, and Zeocin?

Blasticidin: Nucleoside Inhibits protein synthesis in prokaryotic and eukaryotic cells by interfering with peptidyl transfer reaction of protein synthesis, causing early termination of translation.

Geneticin (G418): Aminoglycoside Blocks protein synthesis in mammalian cells by interfering with ribosomal function.

Hygromycin: Aminocyclitol Inhibits protein synthesis by disrupting translocation and promoting mistranslation.

Zeocin: Intercalates with DNA and cleaves it.

What is the optimal pH of low salt LB for LB + blasticidin plates?

We recommend a pH of 7 or less and half the normal amount of NaCl in your LB media or plates.

See the following paper for details on optimal conditions: Yamaguchi et al (1965) Inhibition of Protein Synthesis by Blasticidin S. Journal of Biochemistry (Tokyo) Volume 57: pp 667-677.

How long can Blasticidin be stored at 4 degrees C after thawing? Does the unused portion have to be discarded after thawing?

Blasticidin is stable for 6 months when stored at 4 degrees C. Discard remaining material after this time.

Citations & References (5)

Citations & References
Abstract
A Scalable, Multiplexed Assay for Decoding GPCR-Ligand Interactions with RNA Sequencing.
Authors:Jones EM, Jajoo R, Cancilla D, Lubock NB, Wang J, Satyadi M, Cheung R, de March C, Bloom JS, Matsunami H, Kosuri S
Journal:Cell Syst
PubMed ID:30904378
'G protein-coupled receptors (GPCRs) are central to how mammalian cells sense and respond to chemicals. Mammalian olfactory receptors (ORs), the largest family of GPCRs, mediate the sense of smell through activation by small molecules, though for most bonafide ligands, they have not been identified. Here, we introduce a platform to ... More
A Brain Penetrant Mutant IDH1 Inhibitor Provides In Vivo Survival Benefit.
Authors:Kopinja J, Sevilla RS, Levitan D, Dai D, Vanko A, Spooner E, Ware C, Forget R, Hu K, Kral A, Spacciapoli P, Kennan R, Jayaraman L, Pucci V, Perera S, Zhang W, Fischer C, Lam MH
Journal:Sci Rep
PubMed ID:29062039
'Mutations in IDH1 are highly prevalent in human glioma. First line treatment is radiotherapy, which many patients often forego to avoid treatment-associated morbidities. The high prevalence of IDH1 mutations in glioma highlights the need for brain-penetrant IDH1 mutant-selective inhibitors as an alternative therapeutic option. Here, we have explored the utility ... More
Biological Characterization of a Stable Effector Functionless (SEFL) Monoclonal Antibody Scaffold in Vitro.
Authors:Liu L, Jacobsen FW, Everds N, Zhuang Y, Yu YB, Li N, Clark D, Nguyen MP, Fort M, Narayanan P, Kim K, Stevenson R, Narhi L, Gunasekaran K, Bussiere JL
Journal:J Biol Chem
PubMed ID:27994063
The stable effector functionLess (SEFL) antibody was designed as an IgG1 antibody with a constant region that lacks the ability to interact with Fc? receptors. The engineering and stability and pharmacokinetic assessments of the SEFL scaffold is described in the accompanying article (Jacobsen, F. W., Stevenson, R., Li, C., Salimi-Moosavi, ... More
Proteomics reveals Rictor as a noncanonical TGF-ß signaling target during aneurysm progression in Marfan mice.
Authors:Parker SJ, Stotland A, MacFarlane E, Wilson N, Orosco A, Venkatraman V, Madrid K, Gottlieb R, Dietz HC, Van Eyk JE
Journal:Am J Physiol Heart Circ Physiol
PubMed ID:30004239
The objective of the present study was to 1) analyze the ascending aortic proteome within a mouse model of Marfan syndrome (MFS; Fbn1
Ubiquitination of DNA Damage-Stalled RNAPII Promotes Transcription-Coupled Repair.
Authors:Nakazawa Y, Hara Y, Oka Y, Komine O, van den Heuvel D, Guo C, Daigaku Y, Isono M, He Y, Shimada M, Kato K, Jia N, Hashimoto S, Kotani Y, Miyoshi Y, Tanaka M, Sobue A, Mitsutake N, Suganami T, Masuda A, Ohno K, Nakada S, Mashimo T, Yamanaka K, Luijsterburg MS, Ogi T
Journal:Cell
PubMed ID:32142649
Transcription-coupled nucleotide excision repair (TC-NER) is initiated by the stalling of elongating RNA polymerase II (RNAPIIo) at DNA lesions. The ubiquitination of RNAPIIo in response to DNA damage is an evolutionarily conserved event, but its function in mammals is unknown. Here, we identified a single DNA damage-induced ubiquitination site in ... More