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Key Documents

B2292

Sigma-Aldrich

O6-Benzylguanine

≥98% (TLC), solid, O⁶-alkylguanine DNA alkyltransferase inhiitor

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About This Item

Formule empirique (notation de Hill):
C12H11N5O
Numéro CAS:
Poids moléculaire :
241.25
Numéro MDL:
Code UNSPSC :
12352200
ID de substance PubChem :
Nomenclature NACRES :
NA.77

product name

O6-Benzylguanine, ≥98% (TLC), solid

Niveau de qualité

Pureté

≥98% (TLC)

Forme

solid

Solubilité

methanol: 20 mg/mL

Température de stockage

room temp

Chaîne SMILES 

Nc1nc(OCc2ccccc2)c3nc[nH]c3n1

InChI

1S/C12H11N5O/c13-12-16-10-9(14-7-15-10)11(17-12)18-6-8-4-2-1-3-5-8/h1-5,7H,6H2,(H3,13,14,15,16,17)

Clé InChI

KRWMERLEINMZFT-UHFFFAOYSA-N

Informations sur le gène

human ... MGMT(4255)

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Application

O6-Benzylguanine has been used:
  • as an inhibitor of methylguanine methyltransferase (MGMT) in glioblastoma stem cell
  • as a O6-alkylguanine-alkyltransferase (AGT) enzyme inhibitor in embryonic stem cells prior to N-ethyl-N-nitrosourea(ENU) treatment
  • as an inhibitor of AGT in growth inhibition assays of HL-60 human promyelocytic leukemia cells

Actions biochimiques/physiologiques

O6-Benzylguanine (O6BG) inhibits methylguanine methyltransferase (MGMT) by blocking the active site through benzyl group transfer. The use of O6BG with bis-chloroethylnitrosourea (BCNU) or carmustine is effective in treating solid tumors including lymphomas, melanomas and sarcoma.
O(6)-benzylguanine is an antineoplastic agent that binds the DNA repair enzyme O(6)-alkylguanine DNA alkyltransferase (AGT), resulting in inhibition of AGT-mediated DNA repair. It is widely used in various DNA repair mechanism studies and potentiates the effects of other chemotherapeutic agents that damage DNA.

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Quantitative relationship between guanine O6-alkyl lesions produced by Onrigin? and tumor resistance by O6-alkylguanine-DNA alkyltransferase
Ishiguro K, et al.
Biochemical Pharmacology, 80(9), 1317-1325 (2010)
Antonio S J Lee et al.
Stem cells (Dayton, Ohio), 27(5), 1098-1108 (2009-05-06)
Cell replacement therapy using stem cell transplantation holds much promise in the field of regenerative medicine. In the area of hematopoietic stem cell transplantation, O(6)-methylguanine-DNA methyltransferase MGMT (P140K) gene-mediated drug resistance-based in vivo enrichment strategy of donor stem cells has
Andre Larochelle et al.
The Journal of clinical investigation, 119(7), 1952-1963 (2009-06-11)
Major limitations to gene therapy using HSCs are low gene transfer efficiency and the inability of most therapeutic genes to confer a selective advantage on the gene-corrected cells. One approach to enrich for gene-modified cells in vivo is to include
Brian C Beard et al.
The Journal of clinical investigation, 120(7), 2345-2354 (2010-06-17)
HSC transplantation using genetically modified autologous cells is a promising therapeutic strategy for various genetic diseases, cancer, and HIV. However, for many of these conditions, the current efficiency of gene transfer to HSCs is not sufficient for clinical use. The
A Phase III study of radiation therapy (RT) and O 6-benzylguanine+ BCNU versus RT and BCNU alone and methylation status in newly diagnosed glioblastoma and gliosarcoma: Southwest Oncology Group (SWOG) study S0001
Blumenthal DT, et al.
International Journal of Clinical Oncology, 20(4), 650-658 (2015)

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