Subcellular localization of human Nedd4-2 splice isoforms.

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Neural precursor cell-expressed developmentally downregulated 4 (Nedd4) is an E3 ubiquitin-protein ligase that has an N-terminal C2 domain, three or four WW domains and a C-terminal HECT domain. The C2 domain is a small (∼130 amino acid) calcium binding, lipid-binding and protein-protein interaction domain. In polarized MDCK cells V5 epitope-tagged human Nedd4-2(+C2) and hNedd4-2(+C2) were used for both confocal and EM experiments. hNedd4-2(+C2) localized to the apical and lateral membranes of MDCK cells both in the presence and absence of increased cystolic calcium levels, and the hNedd4-2(DeltaC2) isoform demonstrated cystolic localization. Binding of GST-tagged C2 domains from rat Nedd4-1, hNedd4-1 and hNedd4-2 to nitrocellulose-bound phospholipids showed binding of all C2 domains to phosphatidylinositols (PtdIns) that increased with addition of calcium. This study has provided evidence that the C2 domain of hNedd4-2 serves to target the protein to the apical membrane of polarized epithelium where it can interact with its substrates.

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Pagination116 leaves.
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Open LibraryOL19214614M
ISBN 139780494160657

Stahelin RV, Rafter JD, Das S, Cho W. The molecular basis of differential subcellular localization of C2 domains of protein kinase C-alpha and group IVa cytosolic phospholipase A2. J Biol Chem. ; – Zhou R, Patel SV, Snyder PM.

Nedd catalyzes ubiquitination and degradation of cell surface by: We previously reported the existence of multiple isoforms of human Nedd (Am J Physiol Renal Physiol F–F, ). When overexpressed in Cited by: Subcellular localization of the EGFP tagged NEDD4L-C2(+) isoform and the NEDD4L C2 domain (C2(only)) in response to ionomycin and Ca2+ treatment.

Ubiquitination serves multiple cellular functions, including proteasomal degradation and the control of stability, function, and intracellular localization of a wide variety of proteins. NEDD4L is a member of the HECT class of E3 ubiquitin ligases. A defining feature of NEDD4L protein isoforms is the presence or absence of an amino-terminal C2 domain, a class of subcellular, calcium-dependent Cited by:   The localization maps permit comparison of the differential localization of each of these two isoforms in cortex, hippocampus, striatum, and lower brain regions.

The images have been loaded into the Cell-centered Data Base maintained by the National Cited by: In human the protein is encoded by the NEDD4L gene. In mouse the protein is commonly known as NEDD and the gene Nedd NEDD has been shown to ubiquitinate and therefore down regulate the epithelial sodium channel (ENaC) in the collecting ducts of the kidneys, therefore opposing the actions of aldosterone and increasing salt excretion.

Title: Truncated Human Cathepsin L, Encoded by a Novel Splice Variant, Exhibits Altered Subcellular Localization and Cytotoxicity VOLUME: 17 ISSUE: 2 Author(s):Poonam Sansanwal, Abhay A. Shukla, Taposh K. Das and Shyam S. Chauhan Affiliation:Room No, Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.

Next, we sought to determine the subcellular localization of the four BmYki isoforms. BmN cells expressing each of the BmYki isoforms fused with EGFP were collected and analyzed after 24 h of culture.

As shown in Fig. 3, BmYEGFP and BmYEGFP were observed in both the cytoplasm and the nucleus in BmN cells.

Description Subcellular localization of human Nedd4-2 splice isoforms. EPUB

They were also found to be. However, the secondary structure of the isoforms was found to have 74% similarity with the human stromal antigen 2 (SA2) forming a complex with two sister chromatid cohesion protein 1 (SCC1).

Concerning their subcellular localization, the STAG3 proteins were found to be dispersed in different regions of the cell.

eukaryote, human, plant, virus, gram-positive bacteria, gram-negative bacteria: Chou, K. and Shen, H. () Cell-PLoc an improved package of web-servers for predicting subcellular localization of proteins in various organisms. Natural Science, 2, Two isoforms of the DMT1 transcript generated by alternative splicing of the 3′ exons have been identified in mouse, rat, and human.

These isoforms can be distinguished by the different C-terminal amino acid sequences and by the presence (DMT1A) or absence (DMT1B) of an iron response element located in the 3′ untranslated region of the.

Constitutive expression of SR and SR fused to fluorescent proteins revealed their identical subcellular localization in the nucleoplasm and nuclear speckles. Furthermore, expression of either variant shifted splicing of a genomic SR30 reporter toward SR, suggesting that an autoregulatory feedback loop affects SR30 splicing.

The other PPARG isoforms showed great differences in protein properties, structures, and subcellular localization, suggesting that their functions in buffalo mammary glands were different. The existence of various potential protein isoforms increases the diversity of PPARG proteins in buffalo mammary tissue, suggesting that post-transcriptional.

Alternative splicing regulates the subcellular localization of A-kinase anchoring protein 18 isoforms. Cell Biol. Crossref, Medline, Google Scholar; 45 Vidal S.M., Malo D., Vogan K., Skamene E., Gros P.

Natural resistance to infection with intracellular parasites: isolation of a candidate for Bcg. C NEDD4L (NEDD4 Like E3 Ubiquitin Protein Ligase) is a Protein Coding gene. Diseases associated with NEDD4L include Periventricular Nodular Heterotopia 7 and Periventricular Nodular its related pathways are Signaling by GPCR and TGF-beta receptor signaling activates Ontology (GO) annotations related to this gene include ligase activity and ion channel binding.

The SLC2A14 gene encodes for GLUT14, an orphan member of the facilitated membrane glucose transporter family, which was originally described to be exclusively expressed in human testis.

However, genetic variations in SLC2A14 are associated with chronic diseases such as Alzheimer’s disease and Inflammatory Bowel Disease, which cannot be explained by a strictly testicular expression.

Protein serine/threonine phosphatase 5 (PP5) plays an important role in signal transduction in animal cells, but in plants, knowledge about PP5 is scarce.

Here, we describe the isolation of a full-length cDNA encoding tomato (Lycopersicon esculentum) PP5 (LePP5) and its expression in Escherichia coli. Biochemical characterization showed that recombinant LePP5 has a low intrinsic protein.

Targets the cAMP-dependent protein kinase (PKA) to the plasma membrane, and permits functional coupling to the L-type calcium channel.

The membrane-associated form reduces epithelial sodium channel (ENaC) activity, whereas the free cytoplasmic form may negatively regulate ENaC channel feedback inhibition by intracellular sodium. The SLC2A14 gene: genomic locus, tissue expression, splice variants, and subcellular localization of the protein.

Mandana Amir Shaghaghi, a Brent Murphy, b Peter Eck a. a Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada. b Department of Plant Science, University of Manitoba, Winnipeg, MB, Canada.

Furthermore, the PP-1 isoforms each localize to distinct sites both in mitotic cells and in interphase nuclei. A previous study of the subcellular localization of PP-1 used an antibody raised against the common catalytic domain sequence and thus did not distinguish between PP-1 isoforms (Fernandez et al., ).

In contrast, using isoform.

Details Subcellular localization of human Nedd4-2 splice isoforms. FB2

Differential Subcellular Localization of the Splice Variants of the Zinc Transporter ZnT5 Is Dictated by the Different C-Terminal Regions Jared K. Thornton1,2, Kathryn M. Taylor4, Dianne Ford1,3, Ruth A. Valentine1,2* 1The Human Nutrition Research Centre, Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, United Kingdom, 2School of Dental.

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receptor isoforms may be modulated in a tissue-specific fashion. One of the most important aspects of D2 receptor function that may result from the splicing mechanism is a different subcellular localization of the protein.

Indeed, the differential distribution of D2a and D2b mRNAs in the rat central nervous. A human polymorphism affects NEDD4L subcellular targeting by leading to two isoforms that contain or lack a C2 domain RNA interference screen reveals an essential role of Nedd in dopamine transporter ubiquitination and endocytosis.

The molecular basis of differential subcellular localization of C2 domains of protein kinase C-alpha. Plays a role in preventing exon skipping, ensuring the accuracy of splicing and regulating alternative splicing.

Interacts with other spliceosomal components, via the RS domains, to form a bridge between the 5'- and 3'-splice site binding components, U1 snRNP and U2AF. Can stimulate binding of U1 snRNP to a 5'-splice site-containing pre-mRNA.

With the aim of unambiguously establishing the subcellular localization of all physiologically relevant GLXI and GLXII isoforms of a model plant cell, we amplified the full-length coding sequences of all predominant splice forms from Arabidopsis leaves and roots (Figures 3B and 3C) and performed reporter gene-targeting analysis of the encoded.

An ongoing debate is whether most mammalian genes produce more than one functional isoform [1,2,3].The mere presence of multiple isoforms in public sequence databases is clearly insufficient to settle the question [].Arguments against widespread functional alternative isoforms include the fact that the splicing machinery’s limited fidelity causes the stochastic generation of “junk.

The Human Secretome: extensive dictionary for cells, tissues and organs. more than 10 million annotated IHC images. Recent news. Mon, 21 Sep Movie of the month - the nervous heart. Thu, 10 Sep Integration of molecular profiles in a longitudinal wellness profiling cohort.

NEDD), which are specific binding partners of DLG3 [16]. Fig. Subcellular localization of DLG1. Changes in DLG1 localization (shown in green) in epithelial cells as determined by immunofluorescence microscopy following Ca2+-induced differentiation (A), during cell cycle progression (B) and in migrating cells (C).

This isoform does not harbor the “GYDQL” sequence at its carboxy terminal tail and has a subcellular localization similar to the experimentally generated cystinosin variant described by Cherqui et al. Part of the protein is still targeted to the lysosome compartment, as shown by colocalization with the more abundant cystinosin isoform.

Tau alternative splicing generates six isoforms in the adult human brain due to the inclusion or exclusion of exons 2, 3, and The failure in the splicing process of exon 10 generates a tauopathy, which can be carried out by the amyloid peptide; however, the splicing of other exons is less studied.

Thus, non-SNARE isoforms with Longin domain and non-longin SNARE isoforms might have somehow opposite regulatory functions. When considering splice variants as "natural mutants", evidence on modulation of subcellular localization by variation in domain combination can shed further light on targeting determinants.Suggesting that during this period other isoforms would have a more prominent role.

Furthermore, we observed subcellular localization differences between isoforms, particularly throughout postnatal development. Consistent with previous reports, SynGAP was enriched in the postsynaptic density in the mature forebrain.Figure 1. Western blot analysis of NEDD using anti-NEDD antibody (A).

Electrophoresis was performed on a % SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for hours. The sample well of each lane was loaded with 50ug of sample under reducing conditions. Lane 1: human 22RV1 whole cell lysates.