Spiramycin X4281 this substrate is often used

this substrate is often used as a reporter in molecular biology

Polymyxin B is most effective against gram-negative bacteria

Storage/Handling: Store at 4°C

0 and chelates Mg²⁺ to inhibit nuclease activity

It digests cross-linked proteins and structural matrix components that obstruct access to intracellular targets

Spiramycin X4281 this substrate is often usedSpiramycin is a broad spectrum macrolide antibiotic effective against gram negative and gram positive bacteria as well as some Toxoplasma parasites. Spiramycin is a mixture of spiramycin I, II, and III and has been used to study sepsis in mice. Macrolide antibiotics are composed of a macrocyclic lactone ring attached to one or more deoxy sugars. They inhibit bacterial protein synthesis by irreversibly binding the P site of the 50s ribosome, preventing