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Three new U2 small nuclear RNA (U2snRNA) genes from rice ( Oryza sativa} were isolated and se-quenced. The upstream sequence elements, TATA elements, monocot-specific promoter elements and the conserved four-stem-loop secondary structure shared by all plant snRNA genes were identified . The rice U2snRNA genes are shown to be present as a multi - gene family in the genome. The homology of the rice U2snRNA genes is high, with the minimum of 80% . Two pairs of the U2snRNA genes with the same transcriptional direction are found to be linked. One pseudogene in rice was firstly discovered.
Three new U2 small nuclear RNA (U2 snRNA) genes from rice (Oryza sativa} were isolated and se quenched. The upstream sequence elements, TATA elements, monocot-specific promoter elements and the conserved four-stem-loop secondary structure shared by all plant The homology of the rice U2 snRNA genes is high, with the minimum of 80%. The two U2 snRNA genes are shown as be a multi-gene family in the genome. transcriptional direction are found to be linked. One pseudogene in rice was initially discovered.