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SML4022

Sigma-Aldrich

Didemnin B

new

≥95% (HPLC)

Synonym(s):

(2S)-2-Hydroxypropanoyl-L-prolyl-N-methyl-D-leucyl-L-threonyl-(3S,4R,5S)-4-amino-3-hydroxy-5-methylheptanoyl-(2S,4S)-4-hydroxy-2,5-dimethyl-3-oxohexanoyl-L-leucyl-L-prolyl-N,O-dimethyl-L-tyrosine (9→4)-lactone, N-[1-[(2S)-2-Hydroxy-1-oxopropyl]-L-prolyl]didemnin A, NSC 325319, NSC 333841

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About This Item

Empirical Formula (Hill Notation):
C57H89N7O15
CAS Number:
77327-05-0
Molecular Weight:
1112.35
UNSPSC Code:
12352209
UNSPSC Code:
12352200

Quality Level

100

Assay

≥95% (HPLC)

form

(Powder or Lyophilized powder or film)

color

white to off-white

storage temp.

-10 to -25°C

SMILES string

O=C1N2[C@]([H])(C(N(C)[C@@H](CC3=CC=C(OC)C=C3)C(O[C@H](C)[C@H](NC([C@H](N(C([C@H]4N(C([C@H](C)O)=O)CCC4)=O)C)CC(C)C)=O)C(N[C@]([H])([C@H](CC)C)[C@@H](O)CC(O[C@@H](C(C)C)C([C@H](C)C(N[C@H]1CC(C)C)=O)=O)=O)=O)=O)=O)CCC2

Biochem/physiol Actions

Marine-derived cyclic depsipeptide with potent antiviral, immunosuppressive and anticancer activities; induces rapid apoptosis; elongation factor 1A inhibitor.Didemnin B is a marine-derived cyclic depsipeptide with potent antiviral, immunosuppressive and anticancer activities. Didemnin B selectively induces rapid apoptosis through dual inhibition of palmitoyl-protein thioesterase 1 (PPT1) and eukaryotic translation elongation factor 1 alpha 1 (EEF1A1). Binds to the eEF1A(GTP)-aa-tRNA ternary complex and inhibits translation. Didemnin B improves nonalcoholic fatty liver disease (NAFLD) histopathology, glucose homeostasis, and dyslipidemia in western diet-induced obese mice.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Malia B Potts et al.
Nature chemical biology, 11(6), 401-408 (2015-04-14)
Modern cancer treatment employs many effective chemotherapeutic agents originally discovered from natural sources. The cyclic depsipeptide didemnin B has demonstrated impressive anticancer activity in preclinical models. Clinical use has been approved but is limited by sparse patient responses combined with
Treatment with didemnin B, an elongation factor 1A inhibitor, improves hepatic lipotoxicity in obese mice
Physiological Reports, 4(17) (2016)
Manuel F Juette et al.
eLife, 11 (2022-10-21)
Rapid and accurate mRNA translation requires efficient codon-dependent delivery of the correct aminoacyl-tRNA (aa-tRNA) to the ribosomal A site. In mammals, this fidelity-determining reaction is facilitated by the GTPase elongation factor-1 alpha (eEF1A), which escorts aa-tRNA as an eEF1A(GTP)-aa-tRNA ternary

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