Helix bendAverage structural parametersProline residues play a special role in shaping the secondary and tertiary structures of proteins. Many of these aspects have been studied in great detail. Current interest lies in elucidating the structure of right-handed [alpha]-helical fragments which contain ...
Current interest lies in elucidating the structure of right-handed [alpha]-helical fragments which contain proline in the middle of the helix. Such structures play an important role in membrane proteins and in the tight packing of globular proteins. Analysis of several crystal structures and energy...
Synthesis and conformational studies of alternating poly(β-para-nitrobenzyl-L-aspartate-β-benzyl-L-aspartate), a right-handed/left-handed -helix-type con... The conformational preferences of N-acetyl-N'-methyl-alpha-methyl-beta-L-aspartamide, which is the model compound for helical poly(beta...
Each amino acid residues (n th) of the polypeptide chain carbonyl oxygen and C-terminal direction of the first four residues (the first n +4 a) of the amide nitrogen to form hydrogen bonds. In a typical right-handed α-helix structure, the pitch of 0.54nm, each ring contains 3.6 amino...
Answer to: In double-stranded DNA, the two strands are wound around one another in a right-handed helix. (a) True (b) False. By signing up, you'll...
The rotational motion of the transport microtubule twists the central part of the transport microtubule and further causes the transport microtubule to bend into a loop, before coiling up into a double helix. b Time-lapse micrographs of the transport microtubule from an event as illustrated in (a...
Kinetic steps for alpha-helix formation In contrast, the extended state of (Gly)20 only formed a right-handed alpha-helix in two of the 20 MD experiments (10%), and these helices were ... RA Bertsch,N Vaidehi,SI Chan,... - 《Proteins Structure Function & Bioinformatics》 被引量: 92...
Indeed, conformational energy calculations showed that the D residues do not interfere sterically with the formation of a right-handed α helix, and that the right-handed α-helical form of (LDLL)n is only slightly more stable than the left-handed one. 展开 ...
Both with respect to symmetry and handedness of helical packing, the C2 symmetric four-helix bundle of Mnt differs from other oligomerization domains that assemble DNA-binding modules, such as that in the tumor suppressor p53 and the E. coli lac repressor....
Myosin V is a left-handed spiral motor on the right-handed actin helix. Nat Struct Biol 2002; 9:464-7; PMID:12006986; http://dx.doi. org/10.1038/nsb803 120. Nishizaka T, Yagi T, Tanaka Y, Ishiwata S. Right- handed rotation of an actin filament in an in vitro motile system. ...