Recently, we disclosed that KIAA1199-mediated hyaluronan (HA) depolymerization requires an acidic cellular microenvironment (e.g. clathrin-coated vesicles or early endosomes), but no information about the structural basis underlying the cellular targeting and functional modification of KIAA1199 was available. Here, we show that the cleavage of N-terminal 30 amino acids occurs in functionally matured KIAA1199, and the deletion of the N-terminal portion results in altered intracellular trafficking of the molecule and loss of cellular HA depolymerization. These results suggest that the N-terminal portion of KIAA1199 functions as a cleavable signal sequence required for proper KIAA1199 translocation and KIAA1199-mediated HA depolymerization.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.febslet.2013.11.017 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The impact of CD3ζ ITAM multiplicity and sequence on CAR T-cell survival and function.
Front Immunol
January 2025
Department of Pathology, University of Utah, Salt Lake City, UT, United States.
Introduction: Chimeric antigen receptor (CAR) expressing T-cells have shown great promise for the future of cancer immunotherapy with the recent clinical successes achieved in treating different hematologic cancers. Despite these early successes, several challenges remain in the field that require to be solved for the therapy to be more efficacious. One such challenge is the lack of long-term persistence of CD28 based CAR T-cells in patients.
View Article and Find Full Text PDFOptimized convolutional neural network using African vulture optimization algorithm for the detection of exons.
Sci Rep
January 2025
Department of Communication Engineering, School of Electronics Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
The detection of exons is an important area of research in genomic sequence analysis. Many signal-processing methods have been established successfully for detecting the exons based on their periodicity property. However, some improvement is still required to increase the identification accuracy of exons.
View Article and Find Full Text PDFIdentification, molecular characterization and expression patterns of Cathepsin L in Yesso scallop (Patinopecten yessoensis) shell-infested by Polydora.
Comp Biochem Physiol B Biochem Mol Biol
January 2025
Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China.
Patinopecten yessoensis (Yesso scallop), one of the most important aquaculture molluscs in China, has recently suffered severe Polydora disease, causing economic losses. Cathepsin L (CatL), a cysteine protease, has important functions in immune responses in vertebrates and invertebrates. However, little is known regarding the structure and function of CatL in scallops.
View Article and Find Full Text PDFTheoretical insights on the double ESIPT mechanism and fluorescence properties of HBIo chromophore.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004 PR China. Electronic address:
2-{[3-(1H-benzoimidazol-2-yl)-2-hydroxy-5-methylbenzylidene] amino}-benzoic acid (HBIo) based on proton transfer can serve as the fluorescent probe for detecting heavy metal ions. The excited-state intramolecular proton transfer (ESIPT) reaction mechanism of the HBIo chromophore with an intramolecular asymmetric double hydrogen bond in different solvents are investigated. The reaction barrier of the ESIPT along hydrogen bond O1-H2···N3 is higher than that of ESIPT along O4-H5···N6, which indicates that the double ESIPT is a stepwise process.
View Article and Find Full Text PDFA conserved element in the first intron of has a lineage specific, TCR signal-responsive, canonical enhancer function that matches the timing of cell surface CD4 upregulation required to prevent lineage choice error.
Front Immunol
January 2025
Integrative Immunobiology Department, Duke University, Durham, NC, United States.
Introduction: The regulation of expression during T-cell development and immune responses is essential for proper lineage commitment and function in the periphery. However, the mechanisms of genetic and epigenetic regulation are complex, and their interplay not entirely understood. Previously, we demonstrated the need for CD4 upregulation during positive selection to ensure faithful commitment of MHC-II-restricted T cells to the CD4 lineage.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!