Physician

Gastroenterology

Avedis Tavitian practices Gastroenterology. He went to medical school at American University of the Caribbean School of Medicine. Avedis Tavitian is a published doctor and has 100 publications published. The lastest was: 'Identification of a specific effector of the small GTP-binding protein Rap2.'

Publications

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• Suppression and restoration of v-SRC expression in rsv transformed-cells after transfection with N-ras and its antagonist.
• A novel group IIA phospholipase A2 interacts with v-Src oncoprotein from RSV-transformed hamster cells.
• Phosphorylation of p125FAK and paxillin focal adhesion proteins in src-transformed cells with different metastatic capacity.
• Identification of a specific effector of the small GTP-binding protein Rap2.
• The transcription factor Spi-1/PU.1 interacts with the potential splicing factor TLS.
• C-terminal end of v-src protein interacts with peptide coded by gadd7/adapt15-like RNA in two-hybrid system.
• Small GTP-binding proteins in Plasmodium falciparum.
• A new member of the amphiphysin family connecting endocytosis and signal transduction pathways.
• RhoGDI-3 is a new GDP dissociation inhibitor (GDI). Identification of a non-cytosolic GDI protein interacting with the small GTP-binding proteins RhoB and RhoG.
• An alternatively spliced isoform of the Spi-B transcription factor.
• Differential phosphorylations of Spi-B and Spi-1 transcription factors.
• Spi-1/PU.1 transgenic mice develop multistep erythroleukemias.
• The transcription factor Spi-1/PU.1 binds RNA and interferes with the RNA-binding protein p54nrb.
• A possible role for the Ras-related Rab2 protein in the immunological events associated with hematological malignancies.
• Isoprenylation of Rab proteins possessing a C-terminal CaaX motif.
• Insulin and okadaic acid induce Rab4 redistribution in adipocytes.
• Identification of small GTP-binding rab proteins in human platelets: thrombin-induced phosphorylation of rab3B, rab6, and rab8 proteins.
• A small rab GTPase is distributed in cytoplasmic vesicles in non polarized cells but colocalizes with the tight junction marker ZO-1 in polarized epithelial cells.
• Inhibition of Friend cells proliferation by spi-1 antisense oligodeoxynucleotides.
• Cellular traffic and markers of subcellular compartments.
• Characterization of the Ras-related RAP2A protein expressed in the baculovirus-insect cell system: processing of the protein in insect cells and comparison with the ba...
• A small GTP-binding protein is frequently overexpressed in peripheral blood mononuclear cells from patients with solid tumours.
• Phosphorylation of Rap1GAP during the cell cycle.
• EGF modulation of the ras-related rhoB gene expression in human breast-cancer cell lines.
• Bridging Ral GTPase to Rho pathways. RLIP76, a Ral effector with CDC42/Rac GTPase-activating protein activity.
• [RAS proteins and related proteins].
• DNA binding specificities of Spi-1/PU.1 and Spi-B transcription factors and identification of a Spi-1/Spi-B binding site in the c-fes/c-fps promoter.
• Regulation of Ras-related RhoB protein expression during the cell cycle.
• Characterization of a large genomic size Moloney murine sarcoma virus produced by a transformed rat cell line.
• Effect of toyocamycin on oncornaviral production by acutely infected cells.
• [Effect of a selective inhibitor of ribosomal RNA on induction of differentiation of the Friend cell].
• [A virus produced by human embryonic cells infected with Moloney murine sarcoma virus].
• Expression of c-ras and c-myc oncogenes in murine erythroleukemias induced by Friend viruses.
• [Characterization of a subgenomic viral RNA in the polysomes of cells infected with the Moloney murine sarcoma virus].
• Characterization of viral RNA in cells transformed by various isolates of Moloney murine sarcoma virus.
• Comparative immunochemical study of ribosomal proteins from various mammalian cells by two-dimensional immunoelectrophoresis.
• Granulomatous involvement of the liver in patients with AIDS.
• Oral candidiasis as a marker for esophageal candidiasis in the acquired immunodeficiency syndrome.
• [Construction of an infectious retroviral vector for the expression of eucaryotic genes].
• Nucleotide sequence of human rho cDNA clone 12.
• Structure and expression of the chicken epidermal growth factor receptor gene locus.
• Focal esophageal candidiasis in acquired immunodeficiency syndrome (AIDS).
• Presence of a c-myc transcript initiated in intron 1 in Friend erythroleukemia cells and in other murine cell types with no evidence of c-myc gene rearrangement.
• Ketoconazole-resistant Candida esophagitis in patients with acquired immunodeficiency syndrome.
• Complete coding sequences of the ras related rab 3 and 4 cDNAs.
• Four additional members of the ras gene superfamily isolated by an oligonucleotide strategy: molecular cloning of YPT-related cDNAs from a rat brain library.
• The ras-related ral gene maps to chromosome 7p15-22.
• Coding sequence of human rho cDNAs clone 6 and clone 9.
• N-ras gene activation in the RD human rhabdomyosarcoma cell line.
• Nucleotide sequence of a human cDNA encoding a ras-related protein (rap1B).
• Human cDNAs rap1 and rap2 homologous to the Drosophila gene Dras3 encode proteins closely related to ras in the ''effector'' region.
• The ral gene: a new ras related gene isolated by the use of a synthetic probe.
• Isolation from the spleen of myeloproliferative sarcoma virus-infected mice of a myelomonocytic tumor cell line secreting hematopoietic colony stimulating factors.
• Analysis of integrated proviral DNA sequences with an octadecanucleotide probe designed for specific identification of spleen focus-forming virus in the mouse genome.
• Study of the 78A1 isolate of Moloney murine sarcoma virus. II. Haematopoietic tropism and tumourigenicity.
• Study of the 78A1 isolate of Moloney murine sarcoma virus. I. Molecular cloning and characterization.
• Integration of spleen focus-forming virus proviruses in Friend tumor cells.
• Study of oncogenic potentialities of human melanoma: identification of N-ras oncogene after DNA transfer and tumour induction.
• Spi-1 is a putative oncogene in virally induced murine erythroleukaemias.
• Chromosome mapping of the human ras-related rab3A gene to 19p13.2.
• Coding sequences of human ralA and ralB cDNAs.
• The putative oncogene Spi-1: murine chromosomal localization and transcriptional activation in murine acute erythroleukemias.
• Developmental and regional expression of three new members of the ras-gene family in the mouse brain.
• Developmental and regional regulation of rab3: a new brain specific "ras-like" gene.
• Expression of the ras-related rap genes in human tumors.
• Biochemical properties of the YPT-related rab1B protein. Comparison with rab1A.
• The human Rab genes encode a family of GTP-binding proteins related to yeast YPT1 and SEC4 products involved in secretion.
• Nucleotide sequence of a rat cDNA: rab1B, encoding a rab1-YPT related protein.
• Expression of the ras-related ralA, rho12 and rab genes in adult mouse tissues.
• Association of the GTP-binding protein Rab3A with bovine adrenal chromaffin granules.
• Inhibition of GTPase activating protein stimulation of Ras-p21 GTPase by the Krev-1 gene product.
• Spi-1 oncogene activation in Rauscher and Friend murine virus-induced acute erythroleukemias.
• Small GTP-binding protein associated with Golgi cisternae.
• The product of rab2, a small GTP binding protein, increases neuronal adhesion, and neurite growth in vitro.
• Chromosome mapping of the human RAS-related RAP1A, RAP1B, and RAP2 genes to chromosomes 1p12----p13, 12q14, and 13q34, respectively.
• Chromosome assignment of four RAS-related RAB genes.
• Post-translational processing and subcellular localization of the Ras-related Rap2 protein.
• The small GTP-binding protein rab4 is associated with early endosomes.
• The cAMP-dependent protein kinase phosphorylates the rap1 protein in vitro as well as in intact fibroblasts, but not the closely related rap2 protein.
• Association of the Ras-antagonistic Rap1/Krev-1 proteins with the Golgi complex.
• The product of the rap2 gene, member of the ras superfamily. Biochemical characterization and site-directed mutagenesis.
• Effects of the ras-related rap2 protein on cellular proliferation.
• Overexpression of the ras-related rab2 gene product in peripheral blood mononuclear cells from patients with hematological and solid neoplasms.
• [Oncogenes and mitotic signal transduction].
• Rab proteins and gene family in animals.
• Regulation of the GTPase activity of the ras-related rap2 protein.
• Characterization of Spi-B, a transcription factor related to the putative oncoprotein Spi-1/PU.1.
• Localization of the ras-like rab3A protein in the adult rat brain.
• Evidence for a role of rap1 protein in the regulation of human platelet Ca2+ fluxes.
• Influence of toyocamycin on the assembly and processing of preribosomal ribonucleoproteins in the nucleolus of mammalian cells.
• [Viral RNA of cells infected with murine retrovirus: (II). Effect of toyocamycin on the metabolism of viral RNA].
• Ribosomal proteins synthesis and exchange in the absence of 28-S and 18-S ribosomal RNA synthesis in L5178Y cells.
• Kinetic studies on ribosomal proteins assembly in preribosomal particles and ribosomal subunits of mammalian cells.
• [Characterization of the viral-type nucleotide sequences detected in the RNA of human leukaemic cells by probes of murine and simian origins (author''s transl)].
• [Multiplication of murine C-type viruses in mouse teratocarcinoma cell lines].
• [Compared expression of murine plasmacytoma associated virus in tumor cells and in mouse embryo cells].
• Studies on the distribution of ribosomal proteins in mammalian ribosomal subunits.
• Effects of toyocamycin on the biological activity of a murine oncornavirus produced by a chronically infected cell line.
• Effect of toyocamycin on the synthesis of the 70S RNA of a murine retrovirus.

Schools

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• American University Of The Caribbean

• Cumberland Med Center

• Suny Downstate Med Center

Doctors Specialties

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• Internal Medicine
• Gastroenterology

Accepted Insurances

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Education

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• SUNY Health Science Center at Brooklyn
• Brooklyn Hospital Center
• American University of the Caribbean School of Medicine

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