氨基酸组成分析显示，当多肽中含有酸性或碱性氨基酸残基时，其与铁离子表现出良好的结合性。Glu 和Asp含有活性侧链基团，有助于形成肽-金属复合物。 例如，Lys、 Asp和Glu中含有羧基、氨基、胍基等，这些侧链基团通过静电作用或配位作用，与金属离子结合，从而使多肽具有一定的铁离子结合能力。Glu 和 Asp因具有环状结构，能够与亚铁等金属离子结合，形成稳定的金属螯合物。有研究发现，具有较好亚铁螯合能力的多肽通常还与Cys、Arg、Ser等氨基酸有着紧密的联系，可能是小肽和亚铁离子通过配位键、离子键的相互作用而形成新的物质，螯合反应的主要结合位点是氨基、羧基和肽键，谷氨酸（Glu 和 Asp）、天冬氨酸（Asp）和半胱氨酸（Cys）参与了螯合反应。

公司官网：www.wilincare.net欢迎选购！

抗坏血酸亚铁Ferrous Ascorbate、赖氨酸甘氨酸镁Magnesium Lysinate Glycinate、甘氨酸谷氨酰胺镁Magnesium Glycinate Glutamine、柠檬酸苹果酸镁Magnesium Citrate Malate、柠檬酸锶Strontium Citrate、柠檬酸锰Manganese Citrate、柠檬酸铜Copper Citrate、天门冬氨酸锂Lithium Aspartate、抗坏血酸锰Manganese Ascorbate、牛磺酸硒Selenium Taurate。

Different amino acid structures affect ferrous chelation ability

Amino acid composition analysis showed that when the polypeptide contained acidic or basic amino acid residues, it showed good binding with iron ions. Glu and Asp contain active side chain groups that contribute to the formation of peptide-metal complexes. For example, Lys, Asp and Glu contain carboxyl, amino, guanidine, etc. These side chain groups bind to metal ions through electrostatic interaction or coordination, so that the polypeptide has a certain iron ion binding ability. Because of their ring structure, Glu and Asp can combine with ferrous ions to form stable metal chelates. Some studies have found that peptides with good ferrous chelating ability are usually closely related to amino acids such as Cys, Arg and Ser, which may be due to the interaction of small peptides and ferrous ions through coordination bonds and ionic bonds to form new substances. The main binding sites of chelating reactions are amino, carboxyl and peptide bonds. Glutamic acid (Glu and Asp), aspartate (Asp) and cysteine (Cys) were involved in the chelation reaction.

Company's official website: www.wilincare.net welcome to buy!

Ferrous Ascorbate, Magnesium Lysinate Glycinate, Magnesium lysinate Glycinate Glutamine, Magnesium citrate malate Citrate Malate, Strontium Citrate, Manganese Citrate, Copper Citrate, Lithium Aspartate, Manganese ascorbate Ascorbate, Selenium Taurate.