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Differential gene expression in anaplastic lymphoma kinase-positive and anaplastic lymphoma kinase-negative anaplastic large cell lymphomas.

Anaplastic large cell lymphoma (ALCL) is an aggressive large T- or null-cell lymphoma. Most ALCLs arising in children and young adults express a constitutively active receptor tyrosine kinase, anaplastic lymphoma kinase (ALK). Anaplastic large cell lymphomas lacking ALK are clinically heterogeneous and their pathogenesis is unknown. This study is the first complementary DNA (cDNA) microarray analysis using RNA extracted from tumor tissue (7 ALK+ ALCLs and 7 ALK- ALCLs) to identify genes differentially expressed or shared between the ALK+ and ALK- tumors. Unsupervised hierarchical clustering using the top 11 most statistically significant discriminator cDNAs correctly grouped all ALK+ and ALK- tumors. Hierarchical clustering analysis using the 44 cDNAs with the greatest differential expression between ALK+ and ALK- RNAs grouped 6 of 7 ALK+ ALCLs together and 1 ALK+ ALCL with the ALK- group. In general, ALK+ tumors overexpress genes encoding signal transduction molecules (SYK , LYN , CDC37) and underexpress transcription factor genes (including HOXC6 and HOX A3 ) compared with the ALK- group. Cyclin D3 was overexpressed in the ALK+ group and the cell cycle inhibitor p19INK4D was decreased in the ALK- group, suggesting different mechanisms of promoting G 1 /S transition. Both groups had similar proliferation rates. Genes highly expressed in both ALK- and ALK+ ALCLs included kinases (LCK, protein kinase C, vav2, and NKIAMRE) and antiapoptotic molecules, suggesting possible common pathogenetic mechanisms as well.

2466 related Products with: Differential gene expression in anaplastic lymphoma kinase-positive and anaplastic lymphoma kinase-negative anaplastic large cell lymphomas.

Recombinant Human Anaplas Recombinant Human Anaplas Diffuse large B cell lymp Diffuse large-B cell lymp Diffuse large B cell lymp Diffuse large B-cell lymp CD5 (Mantel Cell Lymphom CD5 (Mantel Cell Lymphom CD5 (Mantel Cell Lymphom CD5 (Mantel Cell Lymphom DNA (cytosine 5) methyltr Aurora Kinase B Inhibitor

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NKIAMRE, a novel conserved CDC2-related kinase with features of both mitogen-activated protein kinases and cyclin-dependent kinases.

We report the cloning of the NKIAMRE gene located on human chromosome 5q31.1. It encodes a novel 52kDa Cdc2-related kinase with a 1.5kb open reading frame. Like MAP kinases, NKIAMRE contains a Thr-X-Tyr (TXY) motif in the activation loop domain. Similar to cdks, NKIAMRE contains the putative negative regulatory Ser14 and Tyr15 residues and the cyclin-binding motif, NKIAMRE, from which it derives its name. Human NKIAMRE has significant amino acid identity to related kinases in rat, mouse, Caenorhabditis elegans, and Drosophila, and is widely expressed in human tissues and cell lines. Confocal microscopy demonstrates that NKIAMRE localizes to the cytoplasm. NKIAMRE is activated by treatment of cells with phorbol 12-myristate 13-acetate. Mutation of the ATP-binding Lys-33 to arginine and the Thr-Glu-Tyr motif to Ala-Glu-Phe abolished its ability to phosphorylate myelin basic protein. NKIAMRE is a member of a conserved family of kinases with homology to both MAP kinases and cyclin-dependent kinases.

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Primary antibody DRAK2 A Primary antibody DRAK1 A Myotubularin related prot Tubby-related protein 1 a Recombinant Human p21 Act myotubularin related prot Primary antibody low den Apoptosis Phospho-Specifi EGF Phospho-Specific Arra Tyrosine Kinase Adaptors Rabbit Anti-IEX1 Differen Rabbit Anti-IEX1 Differen

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NKIATRE is a novel conserved cdc2-related kinase.

The mitogen-activated protein kinases (MAPKs) and the cyclin-dependent kinases (CDKs) are key mediators of cell proliferation in response to extracellular signals. Recent additions to each of these families and the identification of kinases with structural features of both have provided insights into fundamental processes, such as cell division and differentiation. To identify novel serine kinases with features of MAPKs or CDKs, a degenerate PCR-based amplification approach was undertaken. The 57- and 52-kDa isoforms of a novel protein kinase, termed NKIATRE, were molecularly cloned from rat brain and jejunum cDNA libraries. Like the MAPKs, NKIATRE has a Thr-Xaa-Tyr motif in kinase subdomain VIII. NKIATRE also shows close homology to the cyclin-dependent kinase class of protein kinases and the cdc2-related kinases NKIAMRE, KKIALRE, and KKIAMRE, containing both conserved inhibitory phosphorylation sites and a putative cyclin-binding domain. Two isoforms of NKIATRE that differ in their carboxy-terminal ends have been identified. A functional nuclear localization signal is specific to the longer 57-kDa alpha isoform. Sequence similarity to the putative human tumor suppressor gene NKIAMRE, which is lost in leukemic patients with chromosome 5q deletions, suggests that NKIATRE may have a role in restricting cell growth or maintaining differentiation.

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Primary antibody low den Tyrosine Kinase Adaptors Mouse Anti-M2-PK (pyruvat Mouse Anti-M2-PK (pyruvat Mouse Anti-M2-PK (pyruvat Mouse Anti-M2-PK (pyruvat Mouse Anti-M2-PK (pyruvat Mouse Anti-M2-PK (pyruvat Rabbit Anti-CDK1 Cdc2 Pol Rabbit Anti-CDK1 Cdc2 Pol Rabbit Anti-CDK1 Cdc2 Pol Rabbit Anti-CDK1 Cdc2 Pol

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Identification of NKIAMRE, the human homologue to the mitogen-activated protein kinase-/cyclin-dependent kinase-related protein kinase NKIATRE, and its loss in leukemic blasts with chromosome arm 5q deletion.

Human acute leukemia and myelodysplasia are often associated with an interstitial deletion in chromosome arm 5q. The deleted region is hypothesized to contain tumor suppressor loci that are critical to the maintenance of normal hematopoiesis. We have identified NKIAMRE, a novel cyclin-dependent kinase-related molecule that is closely related to the rat serine/threonine kinase NKIATRE. Human NKIAMRE localizes to chromosome band 5q31.1, centromeric to the interleukin 9 locus and telomeric to IFN response factor-1. NKIAMRE was deleted at both alleles in 9 of 18 leukemic samples with chromosome band 5q31 abnormalities studied by fluorescence in situ chromosomal hybridization. NKIAMRE loss may be an important determinant of dysmyelopoiesis.

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