Metalloproteins and Metalloenzymes
المؤلف:
..................
المصدر:
LibreTexts Project
الجزء والصفحة:
.................
24-6-2019
2427
Metalloproteins and Metalloenzymes
A protein that contains one or more metal ions tightly bound to amino acid side chains is called a metalloprotein; some of the most common ligands provided by amino acids are shown here. A metalloprotein that catalyzes a chemical reaction is a metalloenzyme. Thus all metalloenzymes are metalloproteins, but the converse is not true. Recent estimates suggest that more than 40% of all known enzymes require at least one metal ion for activity, including almost all the enzymes responsible for the synthesis, duplication, and repair of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Figure 25.6.2b
: Ligands used in biological systems. These metal ligands are commonly found in metalloproteins.
0
0
الاكثر قراءة في مواضيع عامة في الكيمياء اللاعضوية
اخر الاخبار
اخبار العتبة العباسية المقدسة
