Compound E1, also known as G-quadruplex DNA fluorescence probe 1, is a selective fluorescent probe targeting G-quadruplex DNA. It possesses the ability to penetrate membranes and enter living cells, demonstrating low cytotoxicity [1].

360A is a stabilizing G-Quadruplex ligand, and also inhibits telomerase activity for telomerase in TRAP-G4 assay(IC50 : 300 nM).

Carboxy-pyridostatin, as a fluorescent probe, can target G-quadruplex structures and trap cytoplasmic RNA G-quadruplex structures in cells.

Pyridostatin (RR82) is a synthetic small-molecule stabilizer of G-quadruplexes, a secondary structure of DNA that usually exists in the end of the chromosome or the telomeres.

Phen-DC3 Trifluoromethanesulfonate is a G-quadruplex (G4) specific ligand. It also can inhibit FANCJ and DinG helicases (IC50s: 65±6 and 50±10 nM, respectively).

MM41 is a human telomeric and gene promoter DNA quadruplex stabilizer with an IC50 of <10 nM against the MIA PaCa-2 pancreatic cancer cell line.

CL67 is a hypoxia-inducible factor pathway inhibitor. It acts by binding to a G-quadruplex higher-order structure in the HIF promoter sequence in vitro.

Antitumor Agent-84, a G-quadruplex (G4)-ligand, stabilizes various G4-DNA structures, demonstrating highly effective antitumor properties.

BMVC is a potent G-quadruplex (G4) stabilizer and a selective telomerase inhibitor (IC50: ~0.2 μM) with anticancer activities. BMVC inhibits Taq DNA polymerase (IC50: ~2.5 μM).

L5-DA is a G-quadruplex (G4) ligand that selectively stabilizes G4s. L5-DA exhibits significant cytotoxicity to HeLa cells with an IC50 value of 4.3 μM. L5-DA stabilizes G4s in HeLa cells and can block the cell cycle and induce apoptosis.

BMVC-8C3O, a DNA G-quadruplex (G4) ligand, induces the topological conversion from non-parallel to parallel forms in human telomeric DNA G4s.

Telomestatin is an inhibitor of the telomerase, it induces the formation of basket-type G-quadruplex (G4) structures from hybrid-type G-quadruplexes in the telomeric region.

1. Epiberberine may be caused drug interactions based on CYP2D6 enzyme. 2. Epiberberine has anti-adipogenic effect is mediated by downregulation of the Raf/MEK1/ERK1/2 and AMPKα/Akt pathways during 3T3-L1 adipocyte differentiation. 3. Epiberberine, as the brightest FSA emitter among the alkaloids, can also serve as an efficient conformation probe for HTG DNA and discriminate the DNA G-quadruplex from the RNA counterpart.

TMPyP4 tosylate (TMP 1363) is a quadruplex-specific ligand and is a telomerase inhibitor with antitumor effects in osteosarcoma cell lines.

APTO-253 (LOR-253) inhibits c-Myc expression, stabilizes G-quadruplex DNA, and induces cell cycle arrest and apoptosis in acute myeloid leukemia cells. APTO-253 mediates anticancer activity through the induction of the KLF4 tumor suppressor.

L2H2-6OTD, a telomeric inhibitor analogue characterized by containing one to four G-quadruplex binding loops, exhibits telomerase inhibitory activity with an IC 50 value of 15 nM.

Antitumor agent-85, a G-quadruplex (G4)-ligand, stabilizes various G4-DNA structures and possesses potent anti-tumor properties.

BMVC2 (o-BMVC), a carbazole derivative of BMVC, is a G-quadruplex (G4) stabilizer.

c-Myc Inhibitor 5 (DA3) is a fluorescent bispurine compound with a long-chain bridge that selectively binds to the c-MYC G-quadruplex, exhibiting a dissociation constant (K D) of 16 μM. Unlike other G4-driven oncogenes, this inhibitor specifically suppresses c-MYC expression [1].

Quarfloxin (CX-3543) is a fluoroquinolone derivative with antineoplastic activity with IC50 values in the nanomolar range in neuroblastoma cells. Quarfloxin disrupts the interaction between the nucleolin protein and a G-quadruplex DNA structure in the ribosomal DNA template.

Pyridostatin (RR82) hydrochloride, a G-quadruplex DNA stabilizing agent (Kd = 490 nM), induces replication- and transcription-dependent DNA damage, promoting growth arrest in human cancer cells. It specifically targets the proto-oncogene Src, leading to reduced SRC protein levels and decreased SRC-dependent cellular motility in human breast cancer cells.

DIZ-3, a selective multimeric G-quadruplex (G4) ligand, employs a G4-ligand-dimerizing approach to intercalate into the G4-G4 interface, thereby stabilizing its higher-order structure. This compound effectively induces cell cycle arrest and apoptosis, inhibiting cell proliferation in cancer cells characterized by alternative lengthening of telomeres (ALT) [1].

360A iodide is a selective stabilizer of G-quadruplex and inhibits telomerase activity (IC50: 300 nM in TRAP-G4 assay).

Pyridostatin Trifluoroacetate Salt is a G-quadruplexe stabilizer with Kd of 490 nM in a cell-free assay, which targets a series of proto-oncogenes including c-kit, K-ras and Bcl-2.

GTC365 is an hTERT transcriptional repressor that acts in the early stages of the G-quadruplex folding pathway.

Phen-DC3 is a G-quadruplex (G4) specific ligand which can inhibit FANCJ and DinG helicases (IC50s of 65±6 and 50±10 nM, respectively).

BMVC4 is a G-quadruplex stabilizer. BMVC4 induces senescence by activation of pathways of response to DNA damage that was independent of its telomerase inhibitory activity.

Anticancer Agent 84, a cancer research compound, inhibits c-MYC transcription by stabilizing the G-quadruplex (G4) structure, offering potential for cancer investigation [1].

PBP2 is a selective inducer of G-quadruplex structures from the unstructured single-stranded DNA conformations. PBP2 downregulates BCL-2 gene expression in cancer cells.

Epiberberine chloride (Epiberberine (chloride)) is an alkaloid isolated from Coptis chinensis, acts as a potent AChE and BChE inhibitor, and a non-competitive BACE1 inhibitor (IC50s: 1.07, 6.03 and 8.55 μM).