helices


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hel·i·ces

(hel'i-sēz),
Plural of helix.

helices

(hĕl′ĭ-sēz′, hē′lĭ-)
n.
A plural of helix.

hel·i·ces

(hel'i-sēz)
Plural of helix.

helix

(he'liks) (hel'i-sez?, he'li-) (he'lik-sez) plural.helicesplural.helixes [Gr., helix, (something shaped like a) spiral, coil]
1. A coil or spiral.
2. The margin of the external ear.

Watson-Crick helix

See: Watson-Crick helix
References in periodicals archive ?
(59) This strategy revealed that helices A and G were already mostly folded after 200 ys in the I1 intermediate.
This method revealed that helices A and G are tightly packed compared to helix H in the I1 intermediate of apoMb; helix B does not fold tightly at this stage.
Yet another popular theory states that 3/10 helices are usually situated before or after alpha helices [1, 4, 9].
It has been shown that random coil regions can be considered to function as "connecting bridges" between major elements of secondary structure (alpha helices and beta strands) [12].
The helices, as chiral elements, are characterized by dielectric, magnetic, and chiral polarizabilities in the field of monochromatic electromagnetic waves.
The four helices are wound on thin cylindrical polyvinylchloride (PVC) dielectric tubing.
The geometric parameters of these helices are set as follows: pitch height, H = 20 mm and radius of wire, R = 0.5 mm.
Figures 5 and 6 show the relative amplitude and phase of the current distribution along the winding of open-ended and top-loaded helices at 1660.5 MHz.
A comparison showed that the optimally packed computer-generated helices closely matched the specific twists and diameters of helices in proteins.
The new synthetic structures offer a means for studying how natural and lab-made double helices form and bind to other molecules, such as DNA.
Photo: Part of the tertiary structure of the enzyme lactate dehydrogenase, showing the spatial arrangement of its alpha helices and beta-pleated sheets.
Warshaw says the next step is to use fluorescent antibodies to actin and myosin to see whether the protein "contractile units' inside the cell are arranged in twisting helices as well.