214 The KRASG12D(ON) covalent tricomplex inhibitor RM-044 increases tumor antigen presentation and TCR repertoire diversity to promote anti-tumor immunity in a preclinical model of... by Nataliya Tovbis Shifrin, Marie Menard, Haley Courtney, Swetha Ganesh, Alice Kumamoto, Lillian Seu, Jacqueline AM Smith, Elsa Quintana