sterically

By the mid 1980's we had developed what I call well-defined catalysts for both the olefin and acetylene metathesis reactions that contained sterically protecting imido and/or alkoxide ligands.

Richard R. Schrock - Autobiography 2006

Other interesting results obtained by Natta in the field of macromolecular chemistry concern the synthesis of crystalline alternating copolymers of different couples of monomers and the synthesis of various sterically ordered polymers of non-hydrocarbon monomers.

Giulio Natta - Biography 1972

Prof. Natta extended the research conducted by Ziegler on organometallic catalysts to the stereospecific polymerization, thus discovering new classes of polymers with a sterically ordered structure, viz. isotactic, syndiotactic and di-isotactic polymers and linear non branched olefinic polymers and copolymers with an atactic (or sterically nonordered) structure.

Giulio Natta - Biography 1972

However, strong binding heads inevitably clashed sterically with TM, consistent with their ability to increase activation of the thin filament by moving TM toward the open position

PLoS ONE Alerts: New Articles Shenping Wu et al. 2010

Here we demonstrate a simple and versatile photocrosslinking methodology based on sterically hindered bis (fluorophenyl azide) s.

Naturejobs - All Jobs Rui-Qi Png 2010

Here we demonstrate a simple and versatile photocrosslinking methodology based on sterically hindered bis (fluorophenyl azide) s.

Naturejobs - All Jobs 2010

We have reported recently that: (1) ribozymic precursors of the synthetases seem to have used the same two sterically mirror modes of tRNA recognition, (2) having these two modes might have helped in preventing erroneous aminoacylation of ancestral tRNAs with complementary anticodons, yet (3) the risk of confusion for the presumably earliest pairs of complementarily encoded amino acids had little to do with anticodons.

BioMed Central - Latest articles 2009

Placing the probe coincident with crystallographic water molecules suggests that they are sometimes located within small pockets that provide a sterically stable environment irrespective of hydrogen bonding considerations.

Random feeds from Syndic8.com 2009

M.; Little, D.B.; Schalk, M.; Croteau, R.: Hydroxylation of limonene enantiomers and analogs by recombinant (-) - limonene 3 - and 6-hydroxy - lases from Mint (Mentha) species: Evidence for catalysis within sterically constrained active sites.

Recently Uploaded Slideshows arab2000.forumpro.fr@slideshare.net(arab2000.forum 2009

Ghrelin stimulation of GHS-R1a results in activation of heterotrimeric G proteins followed by receptor phosphorylation that leads to the β-arrestin recruitment, which then sterically interdicts further coupling to G proteins and targets the receptor for internalization

PLoS ONE Alerts: New Articles 2009