Glutaminylcyclase
The glutaminyl-peptide cyclotransferase-like protein, commonly abbreviated as QPCTL, is a fascinating enzyme that has garnered significant scientific interest due to its crucial roles in cellular functions and its potential as a therapeutic target, particularly in oncologyFunction:Responsible for the biosynthesis of pyroglutamyl peptides. Subcellular Location: Golgi apparatus membrane>Single-pass type I membrane protein.. QPCTL is responsible for the biosynthesis of pyroglutamyl peptides, a process vital for the proper functioning of various biological systems. Its involvement in modulating immune responses within the tumor microenvironment and promoting cancer cell survival highlights its pivotal role in disease progression, making it a prime candidate for drug development, especially in cancer immunotherapy.Development of a potent benzonitrile-based inhibitor ...
QPCTL is an enzyme that catalyzes the cyclization of N-terminal glutaminyl residues in peptides, converting them into pyroglutamyl peptides. This enzymatic activity is essential for the maturation and function of numerous peptide hormones and signaling moleculesGlutaminyl-peptide cyclotransferase-like protein (QPCTL) .... Research suggests QPCTL is a zinc-dependent metalloenzyme, drawing parallels with bacterial aminopeptidasesFunction:Responsible for the biosynthesis of pyroglutamyl peptides. Subcellular Location: Golgi apparatus membrane>Single-pass type I membrane protein.. Its primary cellular location is the Golgi apparatus, specifically the Golgi apparatus membrane, where it functions as a single-pass type I transmembrane proteinShowing Protein Glutaminyl-peptide cyclotransferase-like .... This localization is critical for its role in processing and modifying peptides within the secretory pathwayPAN-GO - Human Functionome - Gene Ontology.
The specific function of QPCTL is to enable glutaminyl-peptide cyclotransferase activity and zinc ion binding. This activity is fundamental for the biosynthesis of pyroglutamyl peptidesHuman Glutaminyl-Peptide Cyclotransferase-Like (QPCTL) .... The enzyme exhibits a bias against acidic and tryptophan residues adjacent to the N-terminal glutaminyl residue, indicating a degree of substrate specificityThis is arecombinant transmembrane protein expressed in a cell-free expression system. TOP. Sample Manual Insert of MBS7028388.. Understanding these enzymatic properties is key to developing targeted inhibitorsRole of glutaminyl-peptide cyclo-transferase-like protein ....
QPCTL has emerged as a significant factor in the tumor microenvironmentShowing Protein Glutaminyl-peptide cyclotransferase-like .... Its aberrant expression profile in various cancer types is a subject of intense research, as it appears to regulate immune responses and enhance cancer cell survival. By modulating these processes, QPCTL contributes to tumor progression and resistance to therapy2025年11月25日—Enables glutaminyl-peptide cyclotransferase activityand zinc ion binding activity. Located in Golgi apparatus. [provided by Alliance of ....
This understanding has paved the way for the development of QPCTL inhibitors.Showing Protein Glutaminyl-peptide cyclotransferase-like protein (CDBP05457) ; Not Available · Responsible for the biosynthesis of pyroglutamyl peptides. For instance, research has identified potent benzonitrile-based inhibitors of QPCTL that demonstrate antitumor efficacy. These inhibitors represent promising lead compounds for drug development in cancer immunotherapy. The discovery of novel QPCTL inhibitors like QP5038 signifies a critical step forward in harnessing the therapeutic potential of targeting this enzyme.Predicted to enable glutaminyl-peptide cyclotransferase activityand zinc ion binding activity. Predicted to be involved in peptidyl-pyroglutamic acid ...
The therapeutic strategy involves developing molecules that can effectively inhibit QPCTL's enzymatic activity, thereby disrupting its pro-cancerous functions. This approach aims to restore anti-tumor immunity and inhibit cancer cell proliferation.
QPCTL belongs to a family of enzymes involved in peptide modification, including glutaminyl cyclases (QC). While QPCTL is a "like" protein, suggesting a close relationship, it's important to distinguish its specific functions and targets. Glutaminyl cyclase (EC 2.3.2.5) is a well-known enzyme with similar catalytic activitySCOPe 2.04: Protein: Glutaminyl-peptide cyclotransferase, QPCT. Research into glutaminyl cyclases, in general, highlights their potential as targets for various diseases, including cancer.Showing Protein Glutaminyl-peptide cyclotransferase-like ...
Further research areas include the development of specific antibodies against QPCTL and the creation of diagnostic tools like Human Glutaminyl-Peptide Cyclotransferase-Like (QPCTL) ELISA Kits for quantitative measurement.Showing Protein Glutaminyl-peptide cyclotransferase-like protein (CDBP05457) ; Not Available · Responsible for the biosynthesis of pyroglutamyl peptides. The availability of made-to-order human QPCTL membrane proteins and recombinant transmembrane proteins expressed in cell-free systems facilitates in-depth laboratory research and drug screening.
Glutaminyl-peptide cyclotransferase-like protein (QPCTL) is a vital enzyme involved in peptide biosynthesis and plays a significant role in cellular processes, particularly within the tumor microenvironmentRole of glutaminyl-peptide cyclo-transferase-like protein .... Its association with cancer progression has positioned it as a key target for novel therapeutic interventions, especially in the field of cancer immunotherapy. Ongoing research into QPCTL inhibitors and related enzymes promises to unlock new strategies for treating various diseases, underscoring the importance of continued exploration into this critical protein.
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