HIV1 p17 is the matrix protein of the Gag polyprotein which performs highly complex tasks during the assembly, budding, maturation, and infection stages of the viral replication cycle. During viral assembly, the proteins form membrane associations and self-associations that ultimately result in budding of an immature virion from the infected cell. Gag precursors also function during viral assembly to selectively bind and package two plus strands of genomic RNA. . Alternative Names: HIV1 p17, HIV 1 p17 protein, HIV 1 p17 protein, HIV-1 p17 protein, HIV-1 p17, Human Immunodeficiency Virus 1 protein, HIV 1 p17, HIV1 matrix protein p17 protein, Matrix protein p17 protein, HIV-1 p17 protein, MA protein, p17 protein