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P8749

Sigma-Aldrich

Psammaplin A

≥97% (HPLC), solid

Synonyme(s) :

Bisprasin, N,N"-(dithiodi-2,1-ethanediyl)bis[3-bromo-4-hydroxy-a-(hydroxyimino)-benzenepropanamide

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About This Item

Formule empirique (notation de Hill):
C22H24Br2N4O6S2
Numéro CAS:
110659-91-1
Poids moléculaire :
664.39
Code UNSPSC :
12352200

Pureté

≥97% (HPLC)

Forme

solid

Solubilité

DMSO: >10 mg/mL
H2O: insoluble

Température de stockage

2-8°C

Chaîne SMILES 

O\N=C(\Cc1ccc(O)c(Br)c1)C(=O)NCCSSCCNC(=O)C(\Cc2ccc(O)c(Br)c2)=N/O

Actions biochimiques/physiologiques

Psammaplin A is an antibiotic, anti-tumor, DNA methyltransferase inhibitor. It is a bromotyrosine-derived, symmetrical conjugate of cystamine, which was first isolated from the Psammaplinaplysilla sponge. Psammaplin A impedes angiogenesis as well as bacterial and tumor cell growth. Psammaplin A inhibits the activities of several key enzymes in prokaryotic and eukaryotic systems including those involved in epigenetic control of gene expression, DNA replication, angiogensis, and microbial detoxification.

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H315,H319,H335

Classification des risques

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

Organes cibles

Respiratory system

Code de la classe de stockage

13 - Non 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

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Consulter la Bibliothèque de documents

Carsten Thoms et al.
Journal of chemical ecology, 34(9), 1242-1252 (2008-08-06)
Activated chemical defense, i.e., the rapid conversion of precursor molecules to defensive compounds following tissue damage, has been well documented for terrestrial and marine plants; but evidence for its presence in sessile marine invertebrates remains scarce. We observed a wound-activated
José García et al.
Bioorganic & medicinal chemistry, 19(12), 3637-3649 (2011-01-11)
A collection of analogues of the dimeric natural product psammaplin A that differ in the substitution on the (halo)tyrosine aryl ring, the oxime and the diamine connection has been synthesized. The effects on cell cycle, induction of differentiation and apoptosis
Fabia Hentschel et al.
Organic & biomolecular chemistry, 10(35), 7120-7133 (2012-08-09)
The symmetrical disulfide psammaplin A from the marine sponge Pseudoceratina sp. was synthesized and structurally altered by replacement of one of the α-(hydroxyimino)acyl units by a fluorescent 4-coumarinacetyl moiety. Thus, the first fluorescent analogs of psammaplin A were obtained. Structural
Hak Jae Kim et al.
Radiation oncology (London, England), 7, 39-39 (2012-03-21)
Histone modifications and DNA methylation are two major factors in epigenetic phenomenon. Unlike the histone deacetylase inhibitors, which are known to exert radiosensitizing effects, there have only been a few studies thus far concerning the role of DNA methyltransferase (DNMT)
Dong Hoon Kim et al.
Experimental & molecular medicine, 39(1), 47-55 (2007-03-06)
Histone deacetylase (HDAC) has been highlighted as one of key players in tumorigenesis and angiogenesis. Recently, several derivatives of psammaplin (Psams) from a marine sponge have been known to inhibit the HDAC activity, but the molecular mechanism for the inhibition
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