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MABE917-25UL Anti-DNA G-quadruplex structures Antibody, clone BG4

25 µL  
Purchase on Sigma-Aldrich


Replacement Information

Key Spec Table

Species ReactivityKey ApplicationsHostFormatAntibody Type
HGel Electrophoresis, ICC, ChIP-seq, ELISAE. coliPurifiedMonoclonal Antibody
Catalogue NumberMABE917-25UL
DescriptionAnti-DNA G-quadruplex structures Antibody, clone BG4
Alternate Names
  • DNA G-quadruplex (BG4)
Background InformationDNA G-quadruplex structures are associated with a number of important aspects of genome function, which include transcription, recombination and replication. Single-stranded guanine (G)-rich DNA can form stable secondary structures called G-quadruplexes (G-tetrads or G4), which can influence methylation at CpG islands (CGIs). G4 structure is reported to be tightly associated with CGI hypomethylation in the human genome. Four guanine bases can associate through Hoogsteen hydrogen bonding to form a square planar structure called a guanine tetrad (G-tetrad), and two or more G-tetrads can stack on top of each other to form a G-quadruplex. The quadruplex structure is further stabilized by the presence of a cation, especially potassium, which sits in a central channel between each pair of tetrads. A DNA G-tetrad can be formed within one DNA strand (intramolecular), between two DNA strands (bimolecular), or four DNA strands (tetramolecular). G4 DNA can arise anywhere in the genome where sufficiently long stretches of single-stranded G-rich DNA are exposed during replication, transcription or recombination. Chemical analysis of quadruplex-forming oligonucleotides has revealed the existence of a plethora of dynamic quadruplex structures with varying stabilities. The diverse nature of G4 DNA structures makes it an attractive topic in molecular biomedical research.(Ref.: Mao, SQ et al., (2018). Nat. Struc. Mol. Biol. 25(10); 951-957).
Product Information
PresentationPurified single-chain antibody in PBS with 0.05% sodium azide.
Quality LevelMQ100
ApplicationAnti-DNA G-quadruplex structures, clone BG4 Antibody, Cat. No. MABE917-25UL, is a highly specific e. coli single-chain antibody, that targets and has been tested in Gel Electrophoresis, Immunocytochemistry, ChIP-seq and ELISA.
Key Applications
  • Gel Electrophoresis
  • Immunocytochemistry
  • ChIP-seq
Application NotesELISA Analysis: A representative lot detected DNA G-quadruplex structures in Anti-DNA G-quarduplex structures, BG4 (C ourtesy of University of Cambridge). ChIP-seq Analysis: A representative lot detected DNA G-quadruplex structures in ChIP-seq applications (Hansel-Hertsch, R., et. al. (2016). Nat Genet. 48(10):1267-72). ELISA Analysis: A representative lot detected DNA G-quadruplex structures in ELISA applications (Biffi, G., et. al. (2013). Nat Chem. 5(3):182-6). Immunocytochemistry Analysis: A representative lot detected DNA G-quadruplex structures in Immunocytochemistry applications (Biffi, G., et. al. (2013). Nat Chem. 5(3):182-6).
Biological Information
ImmunogenG-quadruplex oligonucleotides.
ConcentrationPlease refer to lot specific datasheet.
HostE. coli
SpecificityClone BG4 has a high affinity for intramolecular and intermolecular DNA G-quadruplexes with no detectable binding to a RNA hairpin, single-stranded DNA or double-stranded DNA.
Species Reactivity
  • Human
Species Reactivity NoteHuman.
Antibody TypeMonoclonal Antibody
Purification MethodImmobilized Metal Affinity Chromatography (IMAC)
UniProt Number
Physicochemical Information
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
Product Usage Statements
Quality AssuranceThe Anti-DNA-G-quadruplex structures, clone BG4 antibody  ( Cat. No. MABE917)  was resolved by SDS-PAGE, transferred to PVDF membrane and probed with Anti-FLAG epitope tag antibody (MAB3118).
Usage Statement
  • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Storage and Shipping Information
Storage ConditionsStable for 1 year at -20°C from date of receipt. Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.
Packaging Information
Material Size25 µL
Transport Information
Supplemental Information