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SML3265

Sigma-Aldrich

DAPTA trifluoroacetate

≥95% (HPLC)

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Synonym(s):
Adaptavir trifluoroacetate, D-Ala-Peptide T-NH2 trifluoroacetate, D-Ala-Peptide T-amide trifluoroacetate, Dala1-Peptide T-NH2 trifluoroacetate, Dala1-Peptide T-amide trifluoroacetate, H-D-Ala-STTTNYT-NH2 trifluoroacetate, H-D-Ala-Ser-Thr-Thr-Thr-Asn-Tyr-Thr-NH2 trifluoroacetate, [D-Ala1]-Peptide T-NH2 trifluoroacetate, [D-Ala1]-Peptide T-amide trifluoroacetate
UNSPSC Code:
51111800
NACRES:
NA.77

Quality Level

Assay

≥95% (HPLC)

form

powder

color

white to off-white

storage temp.

−20°C

Biochem/physiol Actions

DAPTA is a potent CCR5 antagonist, an amidated octapeptide corresponding to an HIV envelope glycoprotein gp120 (gp160)-derived sequence (aa 185-192; the SF-2 isolate) that competes against gp120-CD4 complex for interaction with CCR5 (IC50 = 0.42 nM against gp120CM235 binding to CCR5/CD4 cells, IC50 = 1.5/1.8 nM against gp120BaL/sCD4 or gp120CM235/sCD4 binding to CCR5+/CD4- cells). DAPTA blocks CCR5-dependent HIV host cell entry in cultures and in vivo.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Maria T Polianova et al.
Antiviral research, 67(2), 83-92 (2005-07-09)
The chemokine receptor CCR5 plays a crucial role in transmission of HIV isolates, which predominate in the early and middle stages of infection, as well as those, which populate the brain and cause neuro-AIDS. CCR5 is therefore an attractive therapeutic
S Rosi et al.
Neuroscience, 134(2), 671-676 (2005-06-28)
Chronic neuroinflammation plays a prominent role in the progression of Alzheimer's disease. Reactive microglia and astrocytes are observed within the hippocampus during the early stages of the disease. Epidemiological findings suggest that anti-inflammatory therapies may slow the onset of Alzheimer's
M R Ruff et al.
FEBS letters, 211(1), 17-22 (1987-01-19)
The octapeptide Ala-Ser-Thr-Thr-Thr-Asn-Tyr-Thr (peptide T) and two structural analogs are potent agonists of human monocyte chemotaxis, evincing identical rank potency orders as was previously shown for their inhibition of human immunodeficiency virus (HIV) envelope binding and T cell infectivity. Chemotactic
Valeria Avdoshina et al.
AIDS (London, England), 34(7), 979-988 (2020-02-20)
Postmortem brains of patients diagnosed with HIV-1-associated neurocognitive disorders (HAND) exhibit loss of dendrites. However, the mechanisms by which synapses are damaged are not fully understood. Dendrite length and remodeling occurs via microtubules, the dynamics of which are regulated by
Weiwei Yu et al.
Frontiers in pharmacology, 12, 551839-551839 (2021-05-07)
Background: Cigarette smoke exposure (CSE) is a major cause of chronic obstructive pulmonary disease (COPD). The smoke disrupts cell-cell adhesion by inducing epithelial barrier damage to the tight junction (TJ) proteins. Even though the inflammatory mechanism of chemokine (C-C motif)

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