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5.06291

Sigma-Aldrich

Lactimidomycin

≥98% (HPLC), powder, ribosome inhibitor, Calbiochem®

Synonym(s):

Lactimidomycin, LTM

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About This Item

Empirical Formula (Hill Notation):
C26H35NO6
CAS Number:
Molecular Weight:
457.56
UNSPSC Code:
12352200
NACRES:
NA.77

product name

Lactimidomycin,

Assay

≥98% (HPLC)

Quality Level

form

powder

potency

37.8 nM IC50

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

white

solubility

DMSO: soluble

storage temp.

−20°C

InChI

1S/C26H35NO6/c1-17-10-8-6-4-5-7-9-11-25(32)33-26(17)19(3)12-18(2)22(29)16-21(28)13-20-14-23(30)27-24(31)15-20/h4,6,8-12,17-18,20-21,26,28H,5,7,13-16H2,1-3H3,(H,27,30,31)/b6-4-,10-8-,11-9-,19-12-

InChI key

OYOKHBHOTQDIPM-YVQSYIHDSA-N

General description

A glutarimide based 12-membered macrolide antibiotic with antifungal properties. Acts as a potent inhibitor of cell migration, cell proliferation, and protein synthesis (IC50 = 37.82 nM), but does not affect RNA synthesis even at high concentrations (IC50 >10 µM). Acts as a potent inhibitor of translation and appears to block the first translocation step without affecting tRNA binding or peptide bond formation. It exhibits about 10-fold greater potency than cycloheximide (Cat. No. 239763 and 239764). Binds to the same site on the 60S ribosomal subunit with high affinity (Kd = 500 nM vs 15 µM for cycloheximide). Shown to extend the survival of mice bearing P388 lymphoma by blocking cell growth, however, it does not significantly affect non-tumorigenic MCF10A breast cell lines. Also shown to retard the growth of MDA MB231 cells in nude mice (~0.6 /mg/kg).
Lactimidomycin, CAS 134869-15-1, inhibits cell migration, proliferation, & protein synthesis (IC₅₀ = 37.8 nM). Blocks the first translocation step and has no effect on tRNA binding.

Biochem/physiol Actions

Primary Target
Ribosome
Reversible: yes

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Schneider-Poetsch, T., et al. 2010. Nat. Chem. Biol.6, 209.
Micoine, K., et al. 2010. J. Am. Chem. Soc.132, 14064.
Ju, J., et al. 2009. J. Am. Chem. Soc.131, 1370.
Sugawara, K., et al. 1992. J. Antibiot.45, 1433.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

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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