関連する実験動画
Updated: Jul 19, 2026

15:41
Quantitative Phosphoproteomics in Fatty Acid Stimulated Saccharomyces cerevisiae
Published on: October 12, 2009
脂性ヘクサポルフィリン・アセンブリは,ステンダキサン・コアで支えられている
Vadapalli Chandrasekhar1, Selvarajan Nagendran, Ramachandran Azhakar
1Department of Chemistry, Indian Institute of Technology-Kanpur, Kanpur-208016, India. vc@iitk.ac.in
Journal of the American Chemical Society
|February 24, 2005
まとめ
Sn6O6コアで新しいヘクサポルフィリン組成が合成されました. 銅の誘導体は核酵素活性を示し,DNA分裂の研究における潜在的な応用を示唆した.
科学分野:
- 超分子化学 超分子化学
- 協調化化学について
- バイオケミストリー バイオケミストリー
背景:
- ポルフィリン・アセンブリは,様々な化学的,生物学的プロセスにおいて極めて重要です.
- 亜鉛クラスターは,複雑な分子合成のためのユニークな構造的支架を提供します.
- 金属-リガンドの相互作用を理解することは,機能的な材料の開発の鍵です.
研究 の 目的:
- 新型脂性ヘクサポルフィリン自由塩基および銅金属結合組成物を合成する.
- これらの新しい超分子構造を特徴づけるために.
- 銅を含むアセンブリの核酵素活性を調べるため.
主な方法:
- ヘクサポルフィリン自由塩基および銅金属化誘導体の合成.
- 顕微鏡および分析技術 (例えば,NMR,質量スペクトロメトリー,X線結晶学) を用いた特徴付け.
- 核酵素活性測定は,DNA分裂の有効性を評価するために行われます.
主要な成果:
- Sn6O6コア上のリポフィル性ヘクサポルフィリン組成の合成と完全な特徴付けが成功しました.
- 銅金属化誘導体は,重要な核酵素活性を示した.
- Sn6O6コアの構造的整合性は,アセンブリで維持されました.
結論:
- Sn6O6コアは,複雑なポルフィリン組成物を構築するための実行可能なプラットフォームとして機能します.
- 銅-ヘクサポルフィリン誘導体は,DNA分裂剤として有望であることが示されています.
- この研究は,潜在的生物医学的な応用を持つ機能的超分子材料の範囲を拡大します.
関連する概念動画
Affinity and Avidity
Overview
Acid Strength and Molecular Structure
Binary Acids and Bases
In the absence of any leveling effect, the acid strength of binary compounds of hydrogen with nonmetals (A) increases as the H-A bond strength decreases down a group in the periodic table. For group 17, the order of increasing acidity is HF < HCl < HBr < HI. Likewise, for group 16, the order of increasing acid strength is H2O < H2S < H2Se < H2Te. Across a row in the periodic table, the acid strength of binary hydrogen compounds increases with increasing...
In the absence of any leveling effect, the acid strength of binary compounds of hydrogen with nonmetals (A) increases as the H-A bond strength decreases down a group in the periodic table. For group 17, the order of increasing acidity is HF < HCl < HBr < HI. Likewise, for group 16, the order of increasing acid strength is H2O < H2S < H2Se < H2Te. Across a row in the periodic table, the acid strength of binary hydrogen compounds increases with increasing...
Amino acids
Amino acids are the monomers that comprise proteins. Each amino acid has the same fundamental structure, which consists of a central carbon atom, or the alpha (α) carbon, bonded to an amino group (NH2), a carboxyl group (COOH), and to a hydrogen atom. Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. There are 20 common amino acids present in proteins, each with a different R group. Variation in the amino acid sequence is responsible for...
Peptide Bonds
A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
Lipids as Anchors
In the plasma membrane, the lipids forming the bilayer can also act as an anchor to tether proteins to the membrane. The three main types of lipid anchors found in eukaryotes are – prenyl groups, fatty acyl groups, and glycosylphosphatidylinositol or GPI groups. Prenyl and fatty acyl groups act as anchors on the cytosolic surface of the membrane, whereas GPI anchors proteins on the extracellular side.
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains the...
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains the...
Stability of Substituted Cyclohexanes
This lesson discusses the stability of substituted cyclohexanes with a focus on energies of various conformers and the effect of 1,3-diaxial interactions.
The two chair conformations of cyclohexanes undergo rapid interconversion at room temperature. Both forms have identical energies and stabilities, each comprising equal amounts of the equilibrium mixture. Replacing a hydrogen atom with a functional group makes the two conformations energetically non-equivalent.
For example, in...
The two chair conformations of cyclohexanes undergo rapid interconversion at room temperature. Both forms have identical energies and stabilities, each comprising equal amounts of the equilibrium mixture. Replacing a hydrogen atom with a functional group makes the two conformations energetically non-equivalent.
For example, in...

