Related Experiment Video
Updated: Jun 1, 2026

Microdissection of Black Widow Spider Silk-producing Glands
Published on: January 11, 2011
Ranunculin
Michael Benn1, Lois Jean Yelland, Masood Parvez
1Department of Chemistry, The University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.
Abstract:
In the title mol-ecule {systematic name: (5S)-5-[(β-d-gluco-pyranos-yloxy)meth-yl]furan-2(5H)-one}, C(11)H(16)O(8), the five-membered ring is essentially planar, the maximum deviation being 0.0151 (13) Å for the O atom. The six-membered ring adopts a chair conformation with puckering parameters Q = 0.581 (2) Å, θ = 9.0 (2)° and ϕ = 39.7 (13)°, and with all of the substituents of the glucoside unit having normal equatorial orientations. The crystal structure is stabilized by extensive O-H⋯O and C-H⋯O hydrogen bonding, resulting in a three-dimensional network.
Related Concept Videos
Vesicular Tubular Clusters
With the help of motor proteins such...
Microvilli
These microvilli are predominantly present in cells lining the small intestine, kidney tubules, and certain cells in the respiratory and reproductive systems. By significantly expanding the surface area of the cell membrane, microvilli enhance the cell's capacity to...
Cell Inclusions
Lampbrush Chromosomes
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops resemble the...
Pinching-off of Coated Vesicles

