Oligonucleotides containing 7-deazaguanine: The role of 7- and 8-methyl groups during the B–Z transition of DNA

1996 ◽  
Vol 61 (s1) ◽  
pp. 112-113
Author(s):  
Frank Seela ◽  
Yaoming Chen
Keyword(s):  
Methyl Groups

Role of the Ring Methyl Groups in 2′,3′-Benzoabscisic Acid Analogues

2019 ◽  
Vol 67 (17) ◽  
pp. 4995-5007 ◽  
Author(s):  
Chuan Wan ◽  
Qilin Hong ◽  
Xueqin Zhang ◽  
Yuejuan Zeng ◽  
Dongyan Yang ◽  
...  
Keyword(s):  
Methyl Groups

The role of alkoxy radicals in the heterogeneous reaction of two structural isomers of dimethylsuccinic acid

2015 ◽  
Vol 17 (38) ◽  
pp. 25309-25321 ◽  
Author(s):  
Chiu Tung Cheng ◽  
Man Nin Chan ◽  
Kevin R. Wilson
Keyword(s):  
Molecular Weight ◽  
Hydroxyl Radicals ◽  
Heterogeneous Reaction ◽  
Methyl Groups ◽  
Structural Isomers ◽  
Alkoxy Radicals ◽  
Weight Growth ◽  
Bond Scission

The heterogeneous reaction of hydroxyl radicals with two isomers of dimethylsuccinic acid is used to explore how the location of branched methyl groups controls C–C bond scission and molecular weight growth reactions.

The Role of Methyl Groups in the Formation of Hydrogen Bond in DMSO−Methanol Mixtures

2006 ◽  
Vol 128 (5) ◽  
pp. 1438-1439 ◽  
Author(s):  
Qingzhong Li ◽  
Guoshi Wu ◽  
Zhiwu Yu
Keyword(s):  
Hydrogen Bond ◽  
Methyl Groups

Role of the Ring Methyl Groups in Abscisic Acid Activity in Erucic Acid Accumulation in Oilseed Rape (Brassica napus L.)

1998 ◽  
Vol 17 (1) ◽  
pp. 19-23 ◽  
Author(s):  
J. A. Wilmer ◽  
S. R. Abrams ◽  
J. P. F. G. Helsper ◽  
L. H. W. van der Plas
Keyword(s):  
Abscisic Acid ◽  
Brassica Napus ◽  
Erucic Acid ◽  
Oilseed Rape ◽  
Methyl Groups ◽  
Brassica Napus L ◽  
Acid Accumulation

scholarly journals THE ROLE OF HOMOCYSTINE IN PROTECTING PROTEIN-DEPLETED DOGS EXPOSED TO FATAL DOSES OF CHLOROFORM

1955 ◽  
Vol 101 (2) ◽  
pp. 197-204
Author(s):  
George P. Vennart ◽  
Frank W. McKee
Keyword(s):  
Liver Damage ◽  
Methyl Groups ◽  
Histological Changes ◽  
Long Period ◽  
Lethal Action ◽  
Low Protein ◽  
Depletion Period ◽  
Protein Diets ◽  
Cellular Destruction

In dogs maintained on low protein diets and subjected to phlebotomy over a long period of time, the inhalation of chloroform, for 30 minutes, produced uniform fatality within 48 hours. The histological changes of massive hepato-cellular destruction were observed at autopsy. Homocystine, in the amount of 2.0 gm., given orally 2 hours after or 2 hours prior to the administration of chloroform, protected dogs against the lethal action of the toxin. Inconstant changes in fibrinogen and icteric indices were observed in the protected animals, indicating some mild liver damage, but this was not correlated with the length of the previous depletion period, the phase of the experiment, or any other factor. No evidence was obtained that methyl groups are necessary for the protection of the liver by homocystine.

scholarly journals Role of methyl group number on SOA formation from aromatic hydrocarbons photooxidation under low NO<sub><i>x</i></sub> conditions

2015 ◽  
Vol 15 (21) ◽  
pp. 31153-31196 ◽  
Author(s):  
L. Li ◽  
P. Tang ◽  
S. Nakao ◽  
C.-L. Chen ◽  
D. R. Cocker III
Keyword(s):  
Aromatic Hydrocarbon ◽  
Aromatic Ring ◽  
Aromatic Hydrocarbons ◽  
Methyl Groups ◽  
Methyl Group ◽  
Group Number ◽  
The Impact ◽  
First Time ◽  
Linear Trends

Abstract. Substitution of methyl groups onto the aromatic ring determines the SOA formation from the aromatic hydrocarbon precursor. This study links the number of methyl groups on the aromatic ring to SOA formation from aromatic hydrocarbons photooxidation under low NOx conditions (HC / NO > 10 ppb C : ppb). Aromatic hydrocarbons with increasing numbers of methyl groups are systematically studied. SOA formation from pentamethylbenzene and hexamethylbenzene are reported for the first time. A decreasing SOA yield with increasing number of methyl groups is observed. Linear trends are found in both f44 vs. f43 and O / C vs. H / C for SOA from aromatic hydrocarbons with zero to six methyl groups. An SOA oxidation state predictive method based on benzene is used to examine the effect of added methyl groups on aromatic oxidation under low NOx conditions. Further, the impact of methyl group number on density and volatility of SOA from aromatic hydrocarbons is explored. Finally, a mechanism for methyl group impact on SOA formation is suggested. Overall, this work suggests as more methyl groups are attached on the aromatic ring, SOA products from these aromatic hydrocarbons become less oxidized per mass/carbon.

Elucidating the role of key structural motifs in antifreeze glycoproteins

2019 ◽  
Vol 21 (7) ◽  
pp. 3903-3917 ◽  
Author(s):  
Poonam Pandey ◽  
Sairam S. Mallajosyula
Keyword(s):  
Structural Alignment ◽  
Methyl Groups ◽  
Antifreeze Glycoproteins ◽  
Structural Motifs ◽  
Antifreeze Glycoprotein ◽  
Ice Lattice

Plausible structural alignment of antifreeze glycoprotein (AFGP) relative to the ice lattice highlighting the role of both Ala and GalNAc methyl groups binding to the ice plane.

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