Date published: 2025-11-1

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TLR6 Activators

TLR6 Activators represent a diverse group of chemicals that play a crucial role in modulating Toll-like Receptor 6 (TLR6) activity, a key component of the innate immune system involved in recognizing microbial pathogens. These activators can either directly engage TLR6 or indirectly influence its activation by targeting related signaling pathways. Understanding the mechanisms by which TLR6 activators operate is essential for deciphering the complex regulation of innate immune responses. Direct TLR6 activators, such as Pam3CSK4, MALP-2, LTA, FSL-1, Zymosan, Pam2CSK4, and Pam2CGDPKHPKSF, engage TLR6 in a ligand-specific manner by binding to TLR2/TLR6 heterodimers. This direct interaction initiates TLR6 activation, leading to downstream signaling events that trigger immune responses against microbial invaders. These activators exemplify the specificity of TLR6 engagement and its role in initiating innate immune responses. Indirect TLR6 activators, such as Poly(I:C), R848, LPS, Imiquimod, and others, activate TLR6 by influencing related signaling pathways. For instance, Poly(I:C) activates TLR6 indirectly by binding to TLR3 and triggering downstream signaling pathways that cross-talk with TLR6, resulting in its activation. Similarly, R848 activates TLR6 indirectly through TLR7-mediated signaling pathways that intersect with TLR6 activation. LPS engages TLR4, leading to cross-talk with TLR6 signaling, ultimately activating TLR6 indirectly. Flagellin activates TLR6 indirectly by engaging TLR5 and initiating signaling pathways that cross-talk with TLR6 activation. Imiquimod binds to TLR7, leading to TLR6 activation through cross-talk pathways. In summary, TLR6 Activators encompass a wide range of chemicals that can either directly engage TLR6 or indirectly modulate its activity by influencing related signaling pathways. These activators are crucial for initiating innate immune responses against microbial pathogens and contribute to our understanding of host defense mechanisms.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

FSL-1

322455-70-9sc-396677
100 µg
$250.00
3
(1)

FSL-1 is a potent ligand for TLR6, characterized by its ability to form stable heterodimers with TLR2, which enhances receptor activation. This interaction triggers a cascade of signaling pathways, notably the NF-κB pathway, leading to the production of pro-inflammatory cytokines. The unique structural motifs of FSL-1 facilitate specific binding to the receptor, influencing downstream immune responses and shaping the host's defense mechanisms against pathogens. Its distinct molecular architecture plays a crucial role in modulating immune system dynamics.

(R)-FSL-1

sc-396679
100 µg
$370.00
(0)

(R)-FSL-1 serves as a selective agonist for TLR6, engaging in unique molecular interactions that promote receptor dimerization with TLR2. This binding initiates a series of intracellular signaling events, particularly activating the MAPK pathway, which is pivotal in regulating cellular responses. The compound's specific stereochemistry and hydrophobic regions enhance its affinity for the receptor, influencing the kinetics of immune activation and shaping the overall inflammatory response.

Polyinosinic acid - polycytidylic acid sodium salt, double-stranded

42424-50-0sc-204854
sc-204854A
10 mg
100 mg
$139.00
$650.00
2
(1)

Poly(I:C) is a synthetic double-stranded RNA analog that can activate TLR6 indirectly by binding to TLR3 and triggering downstream signaling pathways, leading to cross-talk with TLR6 signaling and activation.

R-848

144875-48-9sc-203231
sc-203231A
sc-203231B
sc-203231C
5 mg
25 mg
100 mg
500 mg
$100.00
$300.00
$500.00
$1528.00
12
(1)

R848 is a synthetic small molecule that can activate TLR6 indirectly by binding to TLR7 and triggering signaling pathways that cross-talk with TLR6, leading to TLR6 activation.

Lipopolysaccharide, E. coli O55:B5

93572-42-0sc-221855
sc-221855A
sc-221855B
sc-221855C
10 mg
25 mg
100 mg
500 mg
$96.00
$166.00
$459.00
$1615.00
12
(2)

LPS can activate TLR6 indirectly by engaging TLR4 and initiating a cascade of signaling events that result in TLR6 activation through cross-talk between TLR4 and TLR6 signaling pathways.

Imiquimod

99011-02-6sc-200385
sc-200385A
100 mg
500 mg
$66.00
$278.00
6
(1)

Imiquimod is a synthetic compound that activates TLR6 indirectly by binding to TLR7 and initiating signaling events that cross-talk with TLR6, resulting in TLR6 activation.

Pam3Cys-Ser-(Lys)4, Hydrochloride

112208-00-1sc-507471
2 mg
$550.00
(0)

Pam3CSK4 is a synthetic lipopeptide that can activate TLR6 directly by binding to TLR1/TLR2/TLR6 heterodimers. It engages TLR6 in a ligand-specific manner, leading to TLR6 activation and downstream signaling.

Lipoteichoic acid

56411-57-5sc-507479
5 mg
$248.00
(0)

LTA can activate TLR6 directly by binding to TLR2/TLR6 heterodimers. It engages TLR6 in a ligand-specific manner, leading to TLR6 activation and downstream signaling.

Zymosan A from Saccharomyces cerevisiae

58856-93-2sc-258367
sc-258367A
250 mg
1 g
$88.00
$218.00
2
(1)

Zymosan can activate TLR6 directly by engaging TLR2/TLR6 heterodimers. It engages TLR6 in a ligand-specific manner, leading to TLR6 activation and downstream signaling.