Published in J Virol on September 01, 1987
Isolation of poliovirus 2C mutants defective in viral RNA synthesis. J Virol (1988) 2.65
Plasma membrane receptors for ecotropic murine retroviruses require a limiting accessory factor. J Virol (1991) 2.05
Overcoming interference to retroviral superinfection results in amplified expression and transmission of cloned genes. Proc Natl Acad Sci U S A (1988) 2.02
Ping-pong amplification of a retroviral vector achieves high-level gene expression: human growth hormone production. J Virol (1990) 1.78
Friend spleen focus-forming virus induces factor independence in an erythropoietin-dependent erythroleukemia cell line. J Virol (1990) 1.66
Mechanism of leukemogenesis induced by mink cell focus-forming murine leukemia viruses. J Virol (1991) 1.44
Activation of erythropoietin receptors by Friend viral gp55 and by erythropoietin and down-modulation by the murine Fv-2r resistance gene. Proc Natl Acad Sci U S A (1990) 1.33
The erythropoietin receptor transmembrane region is necessary for activation by the Friend spleen focus-forming virus gp55 glycoprotein. Mol Cell Biol (1992) 1.30
Transmembrane domain of the envelope gene of a polycythemia-inducing retrovirus determines erythropoietin-independent growth. Proc Natl Acad Sci U S A (1989) 1.23
A tagged helper-free Friend virus causes clonal erythroblast immortality by specific proviral integration in the cellular genome. J Virol (1988) 1.11
Erythropoietin receptor. Subunit structure and activation. J Clin Invest (1990) 1.05
Env-derived gp55 gene of Friend spleen focus-forming virus specifically induces neoplastic proliferation of erythroid progenitor cells. EMBO J (1990) 1.02
The spleen focus-forming virus (SFFV) envelope gene, when introduced into mice in the absence of other SFFV genes, induces acute erythroleukemia. J Virol (1988) 0.98
A deletion in the Friend spleen focus-forming virus env gene is necessary for its product (gp55) to be leukemogenic. J Virol (1990) 0.98
A direct demonstration of recombination between an injected virus and endogenous viral sequences, resulting in the generation of mink cell focus-inducing viruses in AKR mice. J Virol (1993) 0.94
Conversion of Friend mink cell focus-forming virus to Friend spleen focus-forming virus by modification of the 3' half of the env gene. J Virol (1991) 0.92
A constitutively activated erythropoietin receptor stimulates proliferation and contributes to transformation of multipotent, committed nonerythroid and erythroid progenitor cells. Mol Cell Biol (1994) 0.92
Friend Spleen Focus-Forming Virus Activates the Tyrosine Kinase sf-Stk and the Transcription Factor PU.1 to Cause a Multi-Stage Erythroleukemia in Mice. Viruses (2010) 0.91
Fusion of the erythropoietin receptor and the Friend spleen focus-forming virus gp55 glycoprotein transforms a factor-dependent hematopoietic cell line. Mol Cell Biol (1993) 0.91
The hydrophobic membrane-spanning sequences of the gp52 glycoprotein are required for the pathogenicity of Friend spleen focus-forming virus. J Virol (1991) 0.86
Cell surface activation of the erythropoietin receptor by Friend spleen focus-forming virus gp55. J Virol (1995) 0.86
Homologous interference resulting from the presence of defective particles of human immunodeficiency virus type 1. J Virol (1995) 0.84
Deletions in one domain of the Friend virus-encoded membrane glycoprotein overcome host range restrictions for erythroleukemia. J Virol (1995) 0.83
Intracellular transport and leukemogenicity of spleen focus-forming virus envelope glycoproteins with altered transmembrane domains. J Virol (1987) 0.82
Mapping of a major osteomagenic determinant of murine leukemia virus RFB-14 to non-long terminal repeat sequences. J Virol (1997) 0.80
The erythropoietin receptor: its role in hematopoiesis and myeloproliferative diseases. J Cell Biol (1993) 0.79
A Friend virus mutant encodes a small glycoprotein that causes erythroleukemia. J Virol (1994) 0.77
An array of novel murine spleen focus-forming viruses that activate the erythropoietin receptor. J Virol (1998) 0.77
Origin and rapid evolution of a novel murine erythroleukemia virus of the spleen focus-forming virus family. J Virol (1998) 0.76
c-myc protooncogene expression in mouse erythroleukemia cells. Environ Health Perspect (1989) 0.75
New M13 vectors for cloning. Methods Enzymol (1983) 90.74
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Construction of a retrovirus packaging mutant and its use to produce helper-free defective retrovirus. Cell (1983) 25.46
A new class of murine leukemia virus associated with development of spontaneous lymphomas. Proc Natl Acad Sci U S A (1977) 13.96
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Interference grouping of murine leukemia viruses: a distinct receptor for the MCF-recombinant viruses in mouse cells. Virology (1982) 3.86
Analysis of the transforming potential of the human H-ras gene by random mutagenesis. Proc Natl Acad Sci U S A (1984) 3.64
Friend strain of spleen focus-forming virus is a recombinant between ecotropic murine type C virus and the env gene region of xenotropic type C virus. Proc Natl Acad Sci U S A (1977) 3.62
Nucleotide sequence of the envelope gene of Friend murine leukemia virus. J Virol (1983) 3.41
Evidence for a glycoprotein "signal" involved in transport between subcellular organelles. Two membrane glycoproteins encoded by murine leukemia virus reach the cell surface at different rates. J Biol Chem (1982) 3.24
Molecular analysis of the envelope gene and long terminal repeat of Friend mink cell focus-inducing virus: implications for the functions of these sequences. J Virol (1984) 3.09
Three human transforming genes are related to the viral ras oncogenes. Proc Natl Acad Sci U S A (1983) 3.06
Different recombinant murine leukemia viruses use different cell surface receptors. Virology (1984) 2.85
Different murine cell lines manifest unique patterns of interference to superinfection by murine leukemia viruses. Virology (1985) 2.44
Envelope gene sequences which encode the gp52 protein of spleen focus-forming virus are required for the induction of erythroid cell proliferation. J Virol (1982) 2.39
Complete nucleotide sequence of an infectious clone of Friend spleen focus-forming provirus: gp55 is an envelope fusion glycoprotein. Proc Natl Acad Sci U S A (1983) 2.23
Identification of functional regions in the transforming protein of Fujinami sarcoma virus by in-phase insertion mutagenesis. Cell (1984) 2.12
A mouse gene on chromosome 5 that restricts infectivity of mink cell focus-forming recombinant murine leukemia viruses. J Exp Med (1983) 2.08
Glycoprotein encoded by the Friend spleen focus-forming virus. J Virol (1979) 1.89
Envelope gene of the Friend spleen focus-forming virus: deletion and insertions in 3' gp70/p15E-encoding region have resulted in unique features in the primary structure of its protein product. Proc Natl Acad Sci U S A (1983) 1.87
Complete nucleotide sequence of the gene for the specific glycoprotein (gp55) of Friend spleen focus-forming virus. Proc Natl Acad Sci U S A (1983) 1.86
Biological activity of the spleen focus-forming virus is encoded by a molecularly cloned subgenomic fragment of spleen focus-forming virus DNA. Proc Natl Acad Sci U S A (1981) 1.86
Polycythemia- and anemia-inducing erythroleukemia viruses exhibit differential erythroid transforming effects in vitro. Cell (1980) 1.81
Malignant transformation of erythroid cells in vivo by introduction of a nonreplicating retrovirus vector. Science (1985) 1.73
Characterization of the env gene and long terminal repeat of molecularly cloned Friend mink cell focus-inducing virus DNA. J Virol (1984) 1.71
Loss of leukemogenicity caused by mutations in the membrane glycoprotein structural gene of Friend spleen focus-forming virus. Proc Natl Acad Sci U S A (1983) 1.47
Plasma membrane glycoproteins encoded by cloned Rauscher and Friend spleen focus-forming viruses. J Virol (1980) 1.46
Erythroid bursts produced by Friend leukaemia virus in vitro. Nature (1978) 1.44
Molecular cloning of biologically active Rauscher spleen focus-forming virus and the sequences of its env gene and long terminal repeat. J Virol (1984) 1.38
Sequence comparisons of the anemia- and polycythemia-inducing strains of Friend spleen focus-forming virus. J Virol (1985) 1.28
Role of a membrane glycoprotein in Friend virus-induced erythroleukemia: studies of mutant and revertant viruses. Virology (1985) 1.25
Genetic and sialylation sources of heterogeneity of the murine leukemia virus membrane envelope glycoproteins gp69/71. J Biol Chem (1979) 1.24
Heterogeneous metabolism and subcellular localization of a potentially leukemogenic membrane glycoprotein encoded by Friend erythroleukemia virus. Isolation of viral and cellular processing mutants. J Biol Chem (1982) 1.22
Polycythaemia- and anaemia-inducing strains of spleen focus-forming virus differ in post-translational processing of envelope-related glycoproteins. Nature (1981) 1.19
The mature form of the Friend spleen focus-forming virus envelope protein, gp65, is efficiently secreted from cells. Virology (1985) 1.12
A graded-response assay for the Friend leukemia virus. J Natl Cancer Inst (1959) 1.09
Reduced leukemogenicity caused by mutations in the membrane glycoprotein gene of Rauscher spleen focus-forming virus. J Virol (1984) 1.07
Immunoselection of mutants deficient in cell surface glycoproteins encoded by murine erythroleukemia viruses. Proc Natl Acad Sci U S A (1980) 1.05
Roles of helper and defective retroviral genomes in murine erythroleukemia: studies of spleen focus-forming virus in the absence of helper. J Virol (1985) 1.04
A weakly pathogenic Rauscher spleen focus-forming virus mutant that lacks the carboxyl-terminal membrane anchor of its envelope glycoprotein. J Virol (1985) 1.02
Biological and biochemical differences between variants of spleen focus-forming virus can be localized to a region containing the 3' end of the envelope gene. J Virol (1985) 1.01
Role of a membrane glycoprotein in Friend virus erythroleukemia: nucleotide sequences of nonleukemogenic mutant and spontaneous revertant viruses. J Virol (1986) 0.97
Fluidity of a retrovirus genome. J Virol (1984) 0.95
Protein A-coated erythrocyte binding to cell surface antigens: application to quantitate retrovirus infectivity in vitro. Virology (1981) 0.80
Effects of CCR5 and CD4 cell surface concentrations on infections by macrophagetropic isolates of human immunodeficiency virus type 1. J Virol (1998) 10.94
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Cell-surface receptor for ecotropic murine retroviruses is a basic amino-acid transporter. Nature (1991) 4.84
Cell-surface receptors for gibbon ape leukemia virus and amphotropic murine retrovirus are inducible sodium-dependent phosphate symporters. Proc Natl Acad Sci U S A (1994) 4.07
Structure-activity relationships of an exotoxin of Pseudomonas aeruginosa. Infect Immun (1977) 3.63
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Selective employment of chemokine receptors as human immunodeficiency virus type 1 coreceptors determined by individual amino acids within the envelope V3 loop. J Virol (1997) 3.44
Evidence for a glycoprotein "signal" involved in transport between subcellular organelles. Two membrane glycoproteins encoded by murine leukemia virus reach the cell surface at different rates. J Biol Chem (1982) 3.24
Mechanism of action of Pseudomonas aeruginosa exotoxin Aiadenosine diphosphate-ribosylation of mammalian elongation factor 2 in vitro and in vivo. Infect Immun (1977) 3.17
CD4, CXCR-4, and CCR-5 dependencies for infections by primary patient and laboratory-adapted isolates of human immunodeficiency virus type 1. J Virol (1997) 3.04
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An endogenous inhibitor of human immunodeficiency virus in human lymphocytes is overcome by the viral Vif protein. J Virol (1998) 2.73
Cloning and characterization of a cell surface receptor for xenotropic and polytropic murine leukemia viruses. Proc Natl Acad Sci U S A (1999) 2.62
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Improved methods for purification and assay of eukaryotic messenger ribonucleic acids and ribosomes. Quantitative analysis of their interaction in a fractionated reticulocyte cell-free system. J Biol Chem (1975) 2.30
Synthesis and glycosylation of polyprotein precursors to the internal core proteins of Friend murine leukemia virus. J Virol (1977) 2.26
Isotopic labeling and analysis of phosphoproteins from mammalian ribosomes. Methods Enzymol (1974) 2.19
Plasma membrane receptors for ecotropic murine retroviruses require a limiting accessory factor. J Virol (1991) 2.05
Overcoming interference to retroviral superinfection results in amplified expression and transmission of cloned genes. Proc Natl Acad Sci U S A (1988) 2.02
Glycoprotein encoded by the Friend spleen focus-forming virus. J Virol (1979) 1.89
Induction of tyrosine phosphorylation by the erythropoietin receptor correlates with mitogenesis. Mol Cell Biol (1991) 1.81
Ping-pong amplification of a retroviral vector achieves high-level gene expression: human growth hormone production. J Virol (1990) 1.78
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Identification and characterization of a widely expressed phosphate transporter/retrovirus receptor family. Kidney Int (1996) 1.66
The Sfpi-1 proviral integration site of Friend erythroleukemia encodes the ets-related transcription factor Pu.1. J Virol (1991) 1.58
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Polymorphisms of the cell surface receptor control mouse susceptibilities to xenotropic and polytropic leukemia viruses. J Virol (1999) 1.55
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A putative cell surface receptor for anemia-inducing feline leukemia virus subgroup C is a member of a transporter superfamily. J Virol (1999) 1.48
Substrate specificity of heparanases from human hepatoma and platelets. J Biol Chem (1998) 1.47
Loss of leukemogenicity caused by mutations in the membrane glycoprotein structural gene of Friend spleen focus-forming virus. Proc Natl Acad Sci U S A (1983) 1.47
Infectious properties of human immunodeficiency virus type 1 mutants with distinct affinities for the CD4 receptor. J Virol (1997) 1.47
Plasma membrane glycoproteins encoded by cloned Rauscher and Friend spleen focus-forming viruses. J Virol (1980) 1.46
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The envelope glycoprotein of an amphotropic murine retrovirus binds specifically to the cellular receptor/phosphate transporter of susceptible species. J Virol (1995) 1.43
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Role of the PU.1 transcription factor in controlling differentiation of Friend erythroleukemia cells. Mol Cell Biol (1992) 1.41
Molecular cloning of biologically active Rauscher spleen focus-forming virus and the sequences of its env gene and long terminal repeat. J Virol (1984) 1.38
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Identification of an allatotropin from adult manduca sexta. Science (1989) 1.35
A murine leukemia virus mutant with a temperature-sensitive defect in membrane glycoprotein synthesis. Cell (1979) 1.34
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Activation of erythropoietin receptors by Friend viral gp55 and by erythropoietin and down-modulation by the murine Fv-2r resistance gene. Proc Natl Acad Sci U S A (1990) 1.33
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Heterogeneous metabolism and subcellular localization of a potentially leukemogenic membrane glycoprotein encoded by Friend erythroleukemia virus. Isolation of viral and cellular processing mutants. J Biol Chem (1982) 1.22
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