Mathew, Porunelloor A.2019-08-222019-08-222001-08-012014-02-11https://hdl.handle.net/20.500.12503/29450Huynh, Van T., Molecular Basis for 2B4-CD48 Interactions. Master of Science, Molecular Biology and Immunology, August 2001, 93 pp., 3 tables, 19 illustrations, bibliography, 51 titles. Natural killer cells are lymphocytes that play a role against cancer and viral infections. 2B4 is a membrane glycoprotein expressed on natural killer cells. In the present study we characterized 2B4 from mice strains BALB/c, 129/svj and A.CA. Nucleotide and peptide analysis revealed that polymorphyic residues in 2B4 are located in the variable domain. My second project was to determine the amino acids involved in the binding between 2B4 and CD48. Twelve mutations were made in human 2B4 to disrupt their interaction. In the last part of the study, an attempt has been made to elucidate the role of tyrosine and threonine amino acids found in the novel tyrosine motifs (TxYxxI/V) that reside in the cytoplasmic domain.application/pdfenCancer BiologyCell and Developmental BiologyCell BiologyCellsCellular and Molecular PhysiologyHemic and Immune SystemsImmunityImmunology and Infectious DiseaseLife SciencesMedical Cell BiologyMedical ImmunologyMedical Molecular BiologyMedicine and Health SciencesMolecular BiologyOther Cell and Developmental BiologyMolecular basis2B4-CD48 interactionsmolecular biologyimmunologynatural killer cells2B4miceamino acidsbindingCD48mutationshumantyrosinethreoninetyrosine motifsTxYxxl/Vcytoplasmic domainThesis