Abstract: Disclosed are markers associated with sensitivity to treatment with proteasome inhibitors. Sensitivity is observed when RAS gene is wild type in tumor cells. Compositions and methods are further provided to assess markers of marker genes to predict outcome of treatment using proteasome inhibitors to patients having a solid tumor, such as a lung tumor or a colon tumor.

Abstract: The invention provides isolated nucleic acids molecules, designated UBA3, UAE, or UBA6, or other E1 enzyme variant nucleic acid molecules, which encode novel E1 enzyme variant proteins. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing UBA3, UAE, or UBA6, or other E1 enzyme variant nucleic acid molecules, host cells into which the expression vectors have been introduced, and nonhuman transgenic animals in which a UBA3, UAE, or UBA6, or other E1 enzyme variant gene has been introduced or disrupted. The invention still further provides isolated UBA3, UAE, or UBA6, or other E1 enzyme variant proteins, fusion proteins, antigenic peptides and anti-UBA3, UAE, or UBA6, or other E1 enzyme variant antibodies. The invention provides methods to identify agents that inhibit UBA3, UAE, or UBA6, or other E1 enzyme variant expression or activity. Diagnostic and therapeutic methods utilizing compositions of the invention are also provided.

Abstract: Disclosed herein are markers associated with sensitivity to treatment with proteasome inhibitors. Sensitivity is observed when RAS gene is wild type in tumor cells.

Abstract: Disclosed are markers associated with sensitivity to treatment with proteasome inhibitors. Sensitivity is observed when RAS gene is wild type in tumor cells. Compositions and methods are further provided to assess markers of marker genes to predict outcome of treatment using proteasome inhibitors to patients having a solid tumor, such as a lung tumor or a colon tumor.

Abstract: The invention provides isolated nucleic acids molecules, designated UBA3, UAE, or UBA6, or other E1 enzyme variant nucleic acid molecules, which encode novel E1 enzyme variant proteins. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing UBA3, UAE, or UBA6, or other E1 enzyme variant nucleic acid molecules, host cells into which the expression vectors have been introduced, and nonhuman transgenic animals in which a UBA3, UAE, or UBA6, or other E1 enzyme variant gene has been introduced or disrupted. The invention still further provides isolated UBA3, UAE, or UBA6, or other E1 enzyme variant proteins, fusion proteins, antigenic peptides and anti-UBA3, UAE, or UBA6, or other E1 enzyme variant antibodies. The invention provides methods to identify agents that inhibit UBA3, UAE, or UBA6, or other E1 enzyme variant expression or activity. Diagnostic and therapeutic methods utilizing compositions of the invention are also provided.