The chemical substance "H-Asp-Ala-His-Lys-OH," with the CAS number 111543-77-2, is a peptide composed of four amino acids: aspartic acid (Asp), alanine (Ala), histidine (His), and lysine (Lys), with a carboxylic acid group at the C-terminus. This peptide exhibits characteristics typical of amino acids, including the ability to form hydrogen bonds, participate in ionic interactions, and exhibit varying solubility in water depending on the pH of the solution. The presence of basic (Lys, His) and acidic (Asp) side chains contributes to its overall charge and reactivity, making it potentially useful in biochemical applications such as drug design, protein synthesis, and as a building block in peptide synthesis. The sequence and composition of this peptide can influence its biological activity, stability, and interaction with other biomolecules. Additionally, its structure may allow for specific conformational arrangements that are critical for its function in biological systems.

H-Asp-Ala-His-Lys-OH

111543-77-2: The chemical substance "H-Asp-Ala-His-Lys-OH," with the CAS number 111543-77-2, is a peptide composed of four amino acids: aspartic acid (Asp), alanine (Ala), histidine (His), and lysine (Lys), with a carboxylic acid group at the C-terminus. This peptide exhibits characteristics typical of amino acids, including the ability to form hydrogen bonds, participate in ionic interactions, and exhibit varying solubility in water depending on the pH of the solution. The presence of basic (Lys, His) and acidic (Asp) side chains contributes to its overall charge and reactivity, making it potentially useful in biochemical applications such as drug design, protein synthesis, and as a building block in peptide synthesis. The sequence and composition of this peptide can influence its biological activity, stability, and interaction with other biomolecules. Additionally, its structure may allow for specific conformational arrangements that are critical for its function in biological systems.

The tetrapeptide DAHK corresponding to the N-terminal sequence of human serum albumin forms a tight binding site for Cu(II) ions. DAHK inhibits Cu(II)-induced oxidative DNA double strand breaks. The tetrapeptide is as effective as HSA in preventing neuronal death induced by CuCl₂/ascorbic acid. DAHK may be an effective, small-molecular-weight alternative to HSA as a therapeutic agent for stroke.

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CAS 111543-77-2

H-Asp-Ala-His-Lys-OH

H-Asp-Ala-His-Lys-OH

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H-Asp-Ala-His-Lys-OH

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