Human(1142) Summary: The nicotinic acetylcholine receptors (nAChRs) are members of a superfamily of ligand-gated ion channels that mediate fast signal transmission at synapses. The nAChRs are (hetero)pentamers composed of homologous subunits. The subunits that make up the muscle and neuronal forms of nAChRs are encoded by separate genes and have different primary structure. There are several subtypes of neuronal nAChRs that vary based on which homologous subunits are arranged around the central channel. They are classified as alpha-subunits if, like muscle alpha-1 (MIM 100690), they have a pair of adjacent cysteines as part of the presumed acetylcholine binding site. Subunits lacking these cysteine residues are classified as beta-subunits (Groot Kormelink and Luyten, 1997 [PubMed 9009220]
Save up to 60% per TRCN when you buy a set of 5 or more with the same options.
MISSION® siRNAs have been designed using a world-class siRNA design algorithm licensed from Rosetta Inpharmatics, a leader in advanced siRNA research. The Rosetta-powered siRNA design algorithm has been optimized with over 3 years of continuous development for enhanced performance in RNAi applications. New and critical siRNA design rules incorporated into the latest algorithm lead to increased target specificity and knockdown for low abundance messages.
Validated MISSION® siRNAs have been functionally validated in Hela cells by Sigma scientists to Knockdown gene expression by 75% or greater. With Validated MISSION® siRNAs, we have done the upfront validation work, so that you do not have to.
Custom Gene Products
Our expertise in DNA & RNA oligo design, chemistry and manufacturing enable Sigma Custom Products to provide a comprehensive product portfolio. Learn more about our "custom capabilities & extensive options today."
siRNA ranking are listed in order of expected efficacy (1 being the best) as predicted by the Rosetta algorithm. All predesigned siRNA carry the Sigma-Aldrich guarantee.