Published in Mol Cell Biol on April 01, 2001
Glucose signaling in Saccharomyces cerevisiae. Microbiol Mol Biol Rev (2006) 3.16
The ubiquitin-proteasome pathway and plant development. Plant Cell (2004) 2.72
Substrate recognition by the Cdc20 and Cdh1 components of the anaphase-promoting complex. Genes Dev (2001) 2.66
Arabidopsis EIN3-binding F-box 1 and 2 form ubiquitin-protein ligases that repress ethylene action and promote growth by directing EIN3 degradation. Proc Natl Acad Sci U S A (2004) 2.40
Glucose sensing and signaling in Saccharomyces cerevisiae through the Rgt2 glucose sensor and casein kinase I. Proc Natl Acad Sci U S A (2004) 2.10
Grr1-dependent inactivation of Mth1 mediates glucose-induced dissociation of Rgt1 from HXT gene promoters. Mol Biol Cell (2003) 1.96
Ubiquitination and auxin signaling: a degrading story. Plant Cell (2002) 1.85
Adaptive evolution in two large families of ubiquitin-ligase adapters in nematodes and plants. Genome Res (2006) 1.84
Polyelectrostatic interactions of disordered ligands suggest a physical basis for ultrasensitivity. Proc Natl Acad Sci U S A (2007) 1.65
SCRAPPER-dependent ubiquitination of active zone protein RIM1 regulates synaptic vesicle release. Cell (2007) 1.60
Degradation of Hof1 by SCF(Grr1) is important for actomyosin contraction during cytokinesis in yeast. EMBO J (2005) 1.44
Regulation and recognition of SCFGrr1 targets in the glucose and amino acid signaling pathways. Mol Cell Biol (2004) 1.34
Npr2, yeast homolog of the human tumor suppressor NPRL2, is a target of Grr1 required for adaptation to growth on diverse nitrogen sources. Eukaryot Cell (2010) 0.96
Cks1, Cdk1, and the 19S proteasome collaborate to regulate gene induction-dependent nucleosome eviction in yeast. Mol Cell Biol (2010) 0.95
Controlling transcription by destruction: the regulation of yeast Gcn4p stability. Curr Genet (2003) 0.94
Transferable domain in the G(1) cyclin Cln2 sufficient to switch degradation of Sic1 from the E3 ubiquitin ligase SCF(Cdc4) to SCF(Grr1). Mol Cell Biol (2002) 0.94
A novel degron-mediated degradation of the RTG pathway regulator, Mks1p, by SCFGrr1. Mol Biol Cell (2005) 0.94
PP2A(Cdc55) regulates G1 cyclin stability. Cell Cycle (2013) 0.88
Deletion of RTS1, encoding a regulatory subunit of protein phosphatase 2A, results in constitutive amino acid signaling via increased Stp1p processing. Eukaryot Cell (2006) 0.87
The Drosophila F-box protein Fbxl7 binds to the protocadherin fat and regulates Dachs localization and Hippo signaling. Elife (2014) 0.86
Structure of an SspH1-PKN1 complex reveals the basis for host substrate recognition and mechanism of activation for a bacterial E3 ubiquitin ligase. Mol Cell Biol (2013) 0.85
Stress-induced ceramide-activated protein phosphatase can compensate for loss of amphiphysin-like activity in Saccharomyces cerevisiae and functions to reinitiate endocytosis. J Biol Chem (2009) 0.85
Ubiquitin ligase trapping identifies an SCF(Saf1) pathway targeting unprocessed vacuolar/lysosomal proteins. Mol Cell (2014) 0.85
Psy2 targets the PP4 family phosphatase Pph3 to dephosphorylate Mth1 and repress glucose transporter gene expression. Mol Cell Biol (2013) 0.83
Characterization of KlGRR1 and SMS1 genes, two new elements of the glucose signaling pathway of Kluyveromyces lactis. Eukaryot Cell (2008) 0.83
Grr1p is required for transcriptional induction of amino acid permease genes and proper transcriptional regulation of genes in carbon metabolism of Saccharomyces cerevisiae. Curr Genet (2004) 0.83
Ndd1 turnover by SCF(Grr1) is inhibited by the DNA damage checkpoint in Saccharomyces cerevisiae. PLoS Genet (2015) 0.76
Identification of She3 as an SCF(Grr1) substrate in budding yeast. PLoS One (2012) 0.75
The ubiquitin system. Annu Rev Biochem (1998) 43.36
New yeast-Escherichia coli shuttle vectors constructed with in vitro mutagenized yeast genes lacking six-base pair restriction sites. Gene (1988) 42.65
Phosphorylation meets ubiquitination: the control of NF-[kappa]B activity. Annu Rev Immunol (2000) 20.70
F-box proteins are receptors that recruit phosphorylated substrates to the SCF ubiquitin-ligase complex. Cell (1997) 11.62
SKP1 connects cell cycle regulators to the ubiquitin proteolysis machinery through a novel motif, the F-box. Cell (1996) 11.22
SKP2 is required for ubiquitin-mediated degradation of the CDK inhibitor p27. Nat Cell Biol (1999) 9.92
SCF and Cullin/Ring H2-based ubiquitin ligases. Annu Rev Cell Dev Biol (1999) 9.54
A complex of Cdc4p, Skp1p, and Cdc53p/cullin catalyzes ubiquitination of the phosphorylated CDK inhibitor Sic1p. Cell (1997) 8.97
An essential G1 function for cyclin-like proteins in yeast. Cell (1989) 7.43
Targeted disruption of Skp2 results in accumulation of cyclin E and p27(Kip1), polyploidy and centrosome overduplication. EMBO J (2000) 5.61
G1-specific cyclins of S. cerevisiae: cell cycle periodicity, regulation by mating pheromone, and association with the p34CDC28 protein kinase. Cell (1990) 5.55
p27(Kip1) ubiquitination and degradation is regulated by the SCF(Skp2) complex through phosphorylated Thr187 in p27. Curr Biol (1999) 5.40
A structural basis of the interactions between leucine-rich repeats and protein ligands. Nature (1995) 4.70
Reconstitution of G1 cyclin ubiquitination with complexes containing SCFGrr1 and Rbx1. Science (1999) 4.65
Insights into SCF ubiquitin ligases from the structure of the Skp1-Skp2 complex. Nature (2000) 4.52
Cdc53/cullin and the essential Hrt1 RING-H2 subunit of SCF define a ubiquitin ligase module that activates the E2 enzyme Cdc34. Genes Dev (1999) 4.17
Induction of pseudohyphal growth by overexpression of PHD1, a Saccharomyces cerevisiae gene related to transcriptional regulators of fungal development. Mol Cell Biol (1994) 4.13
Metabolism of sulfur amino acids in Saccharomyces cerevisiae. Microbiol Mol Biol Rev (1997) 4.11
Cdc53 targets phosphorylated G1 cyclins for degradation by the ubiquitin proteolytic pathway. Cell (1996) 4.06
Function and regulation of yeast hexose transporters. Microbiol Mol Biol Rev (1999) 3.96
Cdc53 is a scaffold protein for multiple Cdc34/Skp1/F-box proteincomplexes that regulate cell division and methionine biosynthesis in yeast. Genes Dev (1998) 3.91
Modification of yeast Cdc53p by the ubiquitin-related protein rub1p affects function of the SCFCdc4 complex. Genes Dev (1998) 3.84
Three different regulatory mechanisms enable yeast hexose transporter (HXT) genes to be induced by different levels of glucose. Mol Cell Biol (1995) 3.74
Interaction between ubiquitin-protein ligase SCFSKP2 and E2F-1 underlies the regulation of E2F-1 degradation. Nat Cell Biol (1999) 3.74
Nedd8 modification of cul-1 activates SCF(beta(TrCP))-dependent ubiquitination of IkappaBalpha. Mol Cell Biol (2000) 3.51
Symmetric cell division in pseudohyphae of the yeast Saccharomyces cerevisiae. Mol Biol Cell (1994) 3.50
The Cdc4/34/53 pathway targets Cdc6p for proteolysis in budding yeast. EMBO J (1997) 3.35
Rapid degradation of the G1 cyclin Cln2 induced by CDK-dependent phosphorylation. Science (1996) 3.30
SGT1 encodes an essential component of the yeast kinetochore assembly pathway and a novel subunit of the SCF ubiquitin ligase complex. Mol Cell (1999) 3.19
Proteins with leucine-rich repeats. Curr Opin Struct Biol (1995) 3.18
Ubiquitination and degradation of the substrate recognition subunits of SCF ubiquitin-protein ligases. Mol Cell (1998) 3.12
Structural diversity of leucine-rich repeat proteins. J Mol Biol (1998) 3.03
Grr1 of Saccharomyces cerevisiae is connected to the ubiquitin proteolysis machinery through Skp1: coupling glucose sensing to gene expression and the cell cycle. EMBO J (1997) 2.97
The Rbx1 subunit of SCF and VHL E3 ubiquitin ligase activates Rub1 modification of cullins Cdc53 and Cul2. Genes Dev (1999) 2.78
G1 cyclin turnover and nutrient uptake are controlled by a common pathway in yeast. Genes Dev (1995) 2.77
Phosphorylation- and ubiquitin-dependent degradation of the cyclin-dependent kinase inhibitor Far1p in budding yeast. Genes Dev (1997) 2.77
Cdc34 and the F-box protein Met30 are required for degradation of the Cdk-inhibitory kinase Swe1. Genes Dev (1998) 2.75
SIC1 is ubiquitinated in vitro by a pathway that requires CDC4, CDC34, and cyclin/CDK activities. Mol Biol Cell (1997) 2.38
GRR1 of Saccharomyces cerevisiae is required for glucose repression and encodes a protein with leucine-rich repeats. Mol Cell Biol (1991) 2.34
Covalent modifier NEDD8 is essential for SCF ubiquitin-ligase in fission yeast. EMBO J (2000) 2.27
Regulation of transcription by ubiquitination without proteolysis: Cdc34/SCF(Met30)-mediated inactivation of the transcription factor Met4. Cell (2000) 2.26
Feedback-regulated degradation of the transcriptional activator Met4 is triggered by the SCF(Met30 )complex. EMBO J (2000) 2.02
Rgt1p of Saccharomyces cerevisiae, a key regulator of glucose-induced genes, is both an activator and a repressor of transcription. Mol Cell Biol (1996) 1.85
Altered regulatory responses to glucose are associated with a glucose transport defect in grr1 mutants of Saccharomyces cerevisiae. Genetics (1994) 1.81
Mechanism of ribonuclease inhibition by ribonuclease inhibitor protein based on the crystal structure of its complex with ribonuclease A. J Mol Biol (1996) 1.70
Saccharomyces cerevisiae G1 cyclins are differentially involved in invasive and pseudohyphal growth independent of the filamentation mitogen-activated protein kinase pathway. Genetics (1999) 1.60
Mutational analysis of morphologic differentiation in Saccharomyces cerevisiae. Genetics (1995) 1.56
The Cdc42p effector Gic2p is targeted for ubiquitin-dependent degradation by the SCFGrr1 complex. EMBO J (1998) 1.50
Subcellular localization of a protein kinase required for cell cycle initiation in Saccharomyces cerevisiae: evidence for an association between the CDC28 gene product and the insoluble cytoplasmic matrix. J Cell Biol (1987) 1.46
Glucose uptake and metabolism in grr1/cat80 mutants of Saccharomyces cerevisiae. Eur J Biochem (1994) 1.30
Identification of genes controlling growth polarity in the budding yeast Saccharomyces cerevisiae: a possible role of N-glycosylation and involvement of the exocyst complex. Genetics (1997) 1.25
An essential function of Grr1 for the degradation of Cln2 is to act as a binding core that links Cln2 to Skp1. J Cell Sci (1998) 1.16
Reversible pseudohyphal growth in haploid Saccharomyces cerevisiae is an aerobic process. Curr Genet (1993) 0.95
The acid-labile subunit of the serum insulin-like growth factor-binding protein complexes. Structural determination by molecular modeling and electron microscopy. J Biol Chem (1999) 0.86
Choline esters in tissue extracts. J Physiol (1933) 62.88
A multidisciplinary intervention to prevent the readmission of elderly patients with congestive heart failure. N Engl J Med (1995) 10.32
An essential G1 function for cyclin-like proteins in yeast. Cell (1989) 7.43
A family of cyclin homologs that control the G1 phase in yeast. Proc Natl Acad Sci U S A (1989) 5.09
A cyclin B homolog in S. cerevisiae: chronic activation of the Cdc28 protein kinase by cyclin prevents exit from mitosis. Cell (1991) 4.90
The Wilson disease gene is a copper transporting ATPase with homology to the Menkes disease gene. Nat Genet (1993) 4.70
A soluble CD4 protein selectively inhibits HIV replication and syncytium formation. Nature (1988) 4.15
Cdc53 targets phosphorylated G1 cyclins for degradation by the ubiquitin proteolytic pathway. Cell (1996) 4.06
Rapid degradation of the G1 cyclin Cln2 induced by CDK-dependent phosphorylation. Science (1996) 3.30
KSR, a novel protein kinase required for RAS signal transduction. Cell (1995) 3.27
The crystal structure of a T cell receptor in complex with peptide and MHC class II. Science (1999) 3.23
CLN3, not positive feedback, determines the timing of CLN2 transcription in cycling cells. Genes Dev (1995) 3.14
DNA polymerase epsilon catalytic domains are dispensable for DNA replication, DNA repair, and cell viability. Mol Cell (1999) 2.92
The enzymatic carboxylation of phosphoenolpyruvate. II. Purification and properties of liver mitochondrial phosphoenolpyruvate carboxykinase. J Biol Chem (1966) 2.89
Mitotic role for the Cdc28 protein kinase of Saccharomyces cerevisiae. Proc Natl Acad Sci U S A (1990) 2.31
The Saccharomyces cerevisiae CKS1 gene, a homolog of the Schizosaccharomyces pombe suc1+ gene, encodes a subunit of the Cdc28 protein kinase complex. Mol Cell Biol (1989) 2.31
T cell responses modulated through interaction between CD8alphaalpha and the nonclassical MHC class I molecule, TL. Science (2001) 2.30
A cyclophilin function in Hsp90-dependent signal transduction. Science (1996) 2.28
Regulation of transcription by ubiquitination without proteolysis: Cdc34/SCF(Met30)-mediated inactivation of the transcription factor Met4. Cell (2000) 2.26
Familial risk of hepatocellular carcinoma among chronic hepatitis B carriers and their relatives. J Natl Cancer Inst (2000) 2.23
The enzymatic carboxylation of phosphoenolpyruvate. I. Purification and properties of phosphoenolpyruvate carboxylase. J Biol Chem (1966) 2.20
CLB5 and CLB6 are required for premeiotic DNA replication and activation of the meiotic S/M checkpoint. Genes Dev (1998) 2.18
A screen for genes that function downstream of Ras1 during Drosophila eye development. Genetics (1996) 2.17
A Saccharomyces cerevisiae homologue of mammalian translation initiation factor 4B contributes to RNA helicase activity. EMBO J (1993) 1.80
Functional and molecular aspects of human T lymphocyte activation via T3-Ti and T11 pathways. Immunol Rev (1987) 1.79
Cloning and characterization of androgen receptor coactivator, ARA55, in human prostate. J Biol Chem (1999) 1.76
Atomic structure of an alphabeta T cell receptor (TCR) heterodimer in complex with an anti-TCR fab fragment derived from a mitogenic antibody. EMBO J (1998) 1.74
Predicting antigenic determinants in proteins: looking for unidimensional solutions to a three-dimensional problem? Pept Res (1995) 1.70
CD2-mediated adhesion facilitates T lymphocyte antigen recognition function. Nature (1989) 1.70
The structural biology of CD2. Immunol Rev (1989) 1.62
Cell cycle-dependent transcription of CLN2 is conferred by multiple distinct cis-acting regulatory elements. Mol Cell Biol (1994) 1.58
Rme1, a negative regulator of meiosis, is also a positive activator of G1 cyclin gene expression. EMBO J (1995) 1.56
Structural basis of CD8 coreceptor function revealed by crystallographic analysis of a murine CD8alphaalpha ectodomain fragment in complex with H-2Kb. Immunity (1998) 1.51
FAR1 is required for posttranscriptional regulation of CLN2 gene expression in response to mating pheromone. Mol Cell Biol (1993) 1.50
Analysis of soy isoflavone conjugation in vitro and in human blood using liquid chromatography-mass spectrometry. Drug Metab Dispos (2000) 1.49
Molecular cloning and expression of T11 cDNAs reveal a receptor-like structure on human T lymphocytes. Proc Natl Acad Sci U S A (1987) 1.49
Predicting location of continuous epitopes in proteins from their primary structures. Methods Enzymol (1991) 1.48
DNA replication checkpoint promotes G1-S transcription by inactivating the MBF repressor Nrm1. Proc Natl Acad Sci U S A (2008) 1.46
Liver acetyl CoA carboxylase and fatty acid synthetase: relative activities in the normal state and in hereditary obesity. Biochem Biophys Res Commun (1967) 1.45
Effect of a multidisciplinary intervention on medication compliance in elderly patients with congestive heart failure. Am J Med (1996) 1.41
Purification of a new antifungal compound produced by Lactobacillus plantarum AF1 isolated from kimchi. Int J Food Microbiol (2010) 1.40
Protein phosphatase 2A positively and negatively regulates Ras1-mediated photoreceptor development in Drosophila. Genes Dev (1996) 1.36
Course and prognosis in patients > or = 70 years of age with congestive heart failure and normal versus abnormal left ventricular ejection fraction. Am J Cardiol (1997) 1.33
Thy-1 cDNA sequence suggests a novel regulatory mechanism. Nature (1983) 1.32
The heavy chain of human B-cell alloantigen HLA-DS has a variable N-terminal region and a constant immunoglobulin-like region. Nature (1983) 1.31
The enzymatic carboxylation of phosphoenolpyruvate. 3. Investigation of the kinetics and mechanism of the mitochondrial phosphoenolpyruvate carboxykinase-catalyzed reaction. J Biol Chem (1966) 1.30
The SH2-containing tyrosine phosphatase corkscrew is required during signaling by sevenless, Ras1 and Raf. Development (1996) 1.29
Expression of the Thy-1 glycoprotein gene by DNA-mediated gene transfer. Proc Natl Acad Sci U S A (1984) 1.28
Structural organization of the rat thy-1 gene. Nature (1985) 1.27
CTG repeats show bimodal amplification in E. coli. Cell (1998) 1.24
A hydrophobic transmembrane segment at the carboxyl terminus of thy-1. Science (1985) 1.22
Androgen-receptor gene CAG repeats, plasma testosterone levels, and risk of hepatitis B-related hepatocellular carcinoma. J Natl Cancer Inst (2000) 1.22
PARK6-linked autosomal recessive early-onset parkinsonism in Asian populations. Neurology (2004) 1.22
Liver acetyl coenzyme A carboxylase. II. Further molecular characterization. J Biol Chem (1968) 1.21
Yeast G1 cyclins are unstable in G1 phase. Nature (1998) 1.19
Regulation of cell size by glucose is exerted via repression of the CLN1 promoter. Mol Cell Biol (1998) 1.17
Intrathoracic extramedullary haematopoiesis complicated by massive haemothorax in alpha-thalassaemia. Thorax (1999) 1.16
Microalbuminuria after pregnancy complicated by pre-eclampsia. Nephrol Dial Transplant (1999) 1.16
Purification and some physicochemical properties of staphylococcal enterotoxin D. Biochemistry (1979) 1.16
One of the CD3epsilon subunits within a T cell receptor complex lies in close proximity to the Cbeta FG loop. J Exp Med (1998) 1.16
Structural and binding analysis of a two domain extracellular CD2 molecule. J Exp Med (1989) 1.14
Diverticular disease of colon in China. A 60-year retrospective study. Chin Med J (Engl) (1984) 1.12
Identification of a common docking topology with substantial variation among different TCR-peptide-MHC complexes. Curr Biol (1998) 1.11
Isolation and characterization of mouse Thy-1 genomic clones. Proc Natl Acad Sci U S A (1985) 1.07
Signal transduction downstream from Ras in Drosophila. Cold Spring Harb Symp Quant Biol (1997) 1.07
Partial phenotypic correction of human Lesch-Nyhan (hypoxanthine-guanine phosphoribosyltransferase-deficient) lymphoblasts with a transmissible retroviral vector. J Biol Chem (1984) 1.05
Provocation of hypotension and pain during upright tilt table testing in adults with fibromyalgia. Clin Exp Rheumatol (1997) 1.05
A 70-kilodalton recombinant heat shock protein of Candida albicans is highly immunogenic and enhances systemic murine candidiasis. Infect Immun (1998) 1.04
Liver acetyl CoA carboxylase: insight into the mechanism of activation by tricarboxylic acids and acetyl CoA. Proc Natl Acad Sci U S A (1967) 1.04
Particle-bound PAH content in ambient air. Environ Pollut (1997) 1.04
Enzymatic and non-enzymatic reduction of nitrite by extracts of Neurospora crassa. J Bacteriol (1975) 1.03
A case of Bizarre Parosteal Osteochondromatous Proliferation of the hand. Singapore Med J (2003) 1.03
Substrate specificity of prostate-specific antigen (PSA). Chem Biol (1998) 1.03
Expression, purification, and functional analysis of murine ectodomain fragments of CD8alphaalpha and CD8alphabeta dimers. J Biol Chem (1999) 1.02
CD3 zeta dependence of the CD2 pathway of activation in T lymphocytes and natural killer cells. Proc Natl Acad Sci U S A (1992) 1.02
The enzymatic carboxylation of phosphoenolpyruvate. IV. The binding of manganese and substrates by phosphoenolpyruvate carbosy-kinase and phosphoenolypyruvate carboxylase. J Biol Chem (1968) 1.02
Induction of p27(KIP1) as a mechanism underlying NS398-induced growth inhibition in human lung cancer cells. Mol Pharmacol (2000) 1.01
Anti-thyroid isoflavones from soybean: isolation, characterization, and mechanisms of action. Biochem Pharmacol (1997) 1.01
Expression of estrogen and progesterone receptors in non-small-cell lung cancer: immunohistochemical study. Anticancer Res (1997) 0.99
Activation of caspase-3-like proteases in apoptosis induced by sphingosine and other long-chain bases in Hep3B hepatoma cells. Biochem J (1999) 0.98
Differential induction of androgen receptor transactivation by different androgen receptor coactivators in human prostate cancer DU145 cells. Endocrine (1999) 0.98
Placental transfer of the soy isoflavone genistein following dietary and gavage administration to Sprague Dawley rats. Reprod Toxicol (2001) 0.98
Crystallization of a deglycosylated T cell receptor (TCR) complexed with an anti-TCR Fab fragment. J Biol Chem (1996) 0.98
Determination of berberine in plasma, urine and bile by high-performance liquid chromatography. J Chromatogr B Biomed Appl (1995) 0.98
Risk factors for prostate carcinoma in Taiwan: a case-control study in a Chinese population. Cancer (1999) 0.97
Prognostic factors and impacts of adjuvant therapy in early-stage cervical carcinoma with pelvic node metastases. Gynecol Oncol (1993) 0.97
Antigenic properties and processing requirements of 65-kilodalton mannoprotein, a major antigen target of anti-Candida human T-cell response, as disclosed by specific human T-cell clones. Infect Immun (2001) 0.96
The CD8alphabeta co-receptor on double-positive thymocytes binds with differing affinities to the products of distinct class I MHC loci. Eur J Immunol (2001) 0.96
Double-positive T cell receptor(high) thymocytes are resistant to peptide/major histocompatibility complex ligand-induced negative selection. Eur J Immunol (1997) 0.96
Adding ketamine in a multimodal patient-controlled epidural regimen reduces postoperative pain and analgesic consumption. Anesth Analg (1998) 0.96
The histidine-221 to tyrosine substitution in v-mos abolishes its biological function and its protein kinase activity. Virology (1988) 0.95
Moloney murine sarcoma virus encoded p37mos expressed in yeast has protein kinase activity. Virology (1986) 0.94
The peptidyl-prolyl isomerase domain of the CyP-40 cyclophilin homolog Cpr7 is not required to support growth or glucocorticoid receptor activity in Saccharomyces cerevisiae. J Biol Chem (1998) 0.93
Susceptibility-weighted imaging in patients with pyogenic brain abscesses at 1.5T: characteristics of the abscess capsule. AJNR Am J Neuroradiol (2012) 0.93
Effect of ammonium ions on the induction of nitrite reductase in Neurospora crassa. J Bacteriol (1976) 0.93
Rapid identification of yeasts commonly found in positive blood cultures by amplification of the internal transcribed spacer regions 1 and 2. Eur J Clin Microbiol Infect Dis (2003) 0.93
Differential thymic selection outcomes stimulated by focal structural alteration in peptide/major histocompatibility complex ligands. Proc Natl Acad Sci U S A (1998) 0.93
Expression of a functional CD3-Ti antigen/MHC receptor in the absence of surface CD2. Analysis with clonal Jurkat cell mutants. J Exp Med (1988) 0.92