side chain


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side chain

[′sīd ‚chān]
(organic chemistry)
A grouping of similar atoms (two or more, generally carbons, as in the ethyl radical, C2H5‒) that branches off from a straight-chain or cyclic (for example, benzene) molecule. Also known as branch; branched chain.
References in periodicals archive ?
The cycloaliphatic epoxy resin was mixed with different amounts of the copolymer having a fluorinated side chain.
In other words, the largest tensile strength of the blends increased as the side chain content of compatibilizers increased.
At 4 [Angstrom], the backbone may appear connected, but side chains might not be very distinguishable.
Penicillin skin testing can accurately predict a penicillin-allergic reaction, but is not predictive for cephalosporin allergy unless the side chain of the penicillin or ampicillin testing reagent is similar to the cephalosporin side chain being evaluated.
In this case we would suggest a simple automatic side chain lubricating system.
Now, however, we know that the [beta]-lactam ring of cephalosporins--unlike that of penicillin and ampicillin--becomes rapidly degraded, so that antibodies are instead targeted to side chain structures.
The interrelationships between structure, antimicrobial activity, and side effects associated with various side chain positions of the quinolones are discussed here.
Many G proteins require the addition of either a 20-carbon side chain or a 15-carbon side chain to perform their function.
Prior to the crystal structure determination, molecular modeling indicated that the [beta]Thr67 side chain hydroxyl group in the distal beta-heme pocket forms a hydrogen bond with the backbone carbonyl of [beta]His63 and is within hydrogen-bonding distance of the ND atom of [beta]His63.
The polymeric additive includes a polymeric backbone having substituents attached thereto, wherein the substituents include at least one urethane linked nitrogen bonded side chain having about 5 carbon atoms or more and a terminal methyl group and at least one oxygen linked water solubilizing group.
Tocotrienols are a form of vitamin E, with an unsaturated isoprenoid side chain rather than the saturated side chain of tocopherols.