Peptide Sciences Research

Klotho Protein: Structural Characteristics and Biological Roles in Aging-Related Research

2026-02-03 406

Klotho is a transmembrane glycoprotein encoded by the KLOTHO gene and structurally characterized by a short intracellular domain and a large extracellular region containing two internal repeat domains, KL1 and KL2. These domains share sequence homology with family 1 glycosidases, although classical glycosidase enzymatic activity has not been clearly demonstrated. Post-translational processing by membrane-associated proteases such as ADAM10 and ADAM17 enables the extracellular domain of Klotho to be released into circulation and biological fluids, generating soluble forms that exhibit distinct biochemical properties from the membrane-bound protein. Expression analyses indicate that Klotho is most abundantly localized in renal distal convoluted tubules and the choroid plexus, with additional expression observed in the proximal tubule, parathyroid gland, reproductive tissues, vascular adventitia, and selected regions of the central nervous system. Beyond α-Klotho, homologous β- and γ-K...

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Klotho Protein: Structural Characteristics and Biological Roles in Aging-Related Research

2026-02-03 400

Klotho is a transmembrane glycoprotein encoded by the KLOTHO gene and structurally characterized by a short intracellular domain and a large extracellular region containing two internal repeat domains, KL1 and KL2. These domains share sequence homology with family 1 glycosidases, although classical glycosidase enzymatic activity has not been clearly demonstrated. Post-translational processing by membrane-associated proteases such as ADAM10 and ADAM17 enables the extracellular domain of Klotho to be released into circulation and biological fluids, generating soluble forms that exhibit distinct biochemical properties from the membrane-bound protein. Expression analyses indicate that Klotho is most abundantly localized in renal distal convoluted tubules and the choroid plexus, with additional expression observed in the proximal tubule, parathyroid gland, reproductive tissues, vascular adventitia, and selected regions of the central nervous system. Beyond α-Klotho, homologous β- and γ-K...

Read More

Klotho Protein: Structural Characteristics and Biological Roles in Aging-Related Research

2026-02-03 402

Klotho is a transmembrane glycoprotein encoded by the KLOTHO gene and structurally characterized by a short intracellular domain and a large extracellular region containing two internal repeat domains, KL1 and KL2. These domains share sequence homology with family 1 glycosidases, although classical glycosidase enzymatic activity has not been clearly demonstrated. Post-translational processing by membrane-associated proteases such as ADAM10 and ADAM17 enables the extracellular domain of Klotho to be released into circulation and biological fluids, generating soluble forms that exhibit distinct biochemical properties from the membrane-bound protein. Expression analyses indicate that Klotho is most abundantly localized in renal distal convoluted tubules and the choroid plexus, with additional expression observed in the proximal tubule, parathyroid gland, reproductive tissues, vascular adventitia, and selected regions of the central nervous system. Beyond α-Klotho, homologous β- and γ-K...

Read More

Klotho Protein: Structural Characteristics and Biological Roles in Aging-Related Research

2026-02-03 401

Klotho is a transmembrane glycoprotein encoded by the KLOTHO gene and structurally characterized by a short intracellular domain and a large extracellular region containing two internal repeat domains, KL1 and KL2. These domains share sequence homology with family 1 glycosidases, although classical glycosidase enzymatic activity has not been clearly demonstrated. Post-translational processing by membrane-associated proteases such as ADAM10 and ADAM17 enables the extracellular domain of Klotho to be released into circulation and biological fluids, generating soluble forms that exhibit distinct biochemical properties from the membrane-bound protein. Expression analyses indicate that Klotho is most abundantly localized in renal distal convoluted tubules and the choroid plexus, with additional expression observed in the proximal tubule, parathyroid gland, reproductive tissues, vascular adventitia, and selected regions of the central nervous system. Beyond α-Klotho, homologous β- and γ-K...

Read More

Klotho Protein: Structural Characteristics and Biological Roles in Aging-Related Research

2026-02-03 400

Klotho is a transmembrane glycoprotein encoded by the KLOTHO gene and structurally characterized by a short intracellular domain and a large extracellular region containing two internal repeat domains, KL1 and KL2. These domains share sequence homology with family 1 glycosidases, although classical glycosidase enzymatic activity has not been clearly demonstrated. Post-translational processing by membrane-associated proteases such as ADAM10 and ADAM17 enables the extracellular domain of Klotho to be released into circulation and biological fluids, generating soluble forms that exhibit distinct biochemical properties from the membrane-bound protein. Expression analyses indicate that Klotho is most abundantly localized in renal distal convoluted tubules and the choroid plexus, with additional expression observed in the proximal tubule, parathyroid gland, reproductive tissues, vascular adventitia, and selected regions of the central nervous system. Beyond α-Klotho, homologous β- and γ-K...

Read More

Klotho Protein: Structural Characteristics and Biological Roles in Aging-Related Research

2026-02-03 399

Klotho is a transmembrane glycoprotein encoded by the KLOTHO gene and structurally characterized by a short intracellular domain and a large extracellular region containing two internal repeat domains, KL1 and KL2. These domains share sequence homology with family 1 glycosidases, although classical glycosidase enzymatic activity has not been clearly demonstrated. Post-translational processing by membrane-associated proteases such as ADAM10 and ADAM17 enables the extracellular domain of Klotho to be released into circulation and biological fluids, generating soluble forms that exhibit distinct biochemical properties from the membrane-bound protein. Expression analyses indicate that Klotho is most abundantly localized in renal distal convoluted tubules and the choroid plexus, with additional expression observed in the proximal tubule, parathyroid gland, reproductive tissues, vascular adventitia, and selected regions of the central nervous system. Beyond α-Klotho, homologous β- and γ-K...

Read More