22. Introduction Figure 22.1 hnRNP hnrna 200A 40S exists as a ribonuclear otein particle 500-800 bases RNA organized as Core proteins (-30-40 KD) a series of b A1A2日1日2C1c2 eads 请莘大Figure 22.1 hnRNA exists as a ribonucleopr otein particle organized as a series of beads. 22.1 Introduction