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| | Please input one-sentence summary here. | | Please input one-sentence summary here. |
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| | ==Annotated Information== | | ==Annotated Information== |
| | ===Function=== | | ===Function=== |
| − | The Shortened Uppermost Internode 1(SUI1) family of genes are pivotal for development of rice stems. SUI-family genes regulate the development of intercalary meristem(IM) for internode elongation and also the cell expansion of the panicle stem rachis in rice. The SUI-family genes encode base-exchange types of phosphatidylserine synthases (PSSs), which possess enzymatic activity in a yeast complementary assay.
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| | ===Expression=== | | ===Expression=== |
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| | ===Evolution=== | | ===Evolution=== |
| − | Saccharomyces cerevisiae strains containing mutations of the HIS4 translation initiation AUG codon were studied by reversion analysis in an attempt to identify components of the translation initiation complex that might participate in initiation site selection during the scanning process. The genetic characterization of these revertants identified three unlinked suppressor loci: SUI1, SUI2 and sui3, which when mutated restored the expression of the HIS4 allele despite the absence of the AUG initiator codon. Both sui1 and sui2 are recessive and cause temperature-sensitive growth on enriched medium. The temperature-sensitive phenotype and the ability to restore HIS4 expression associated with either sui1 or sui2 mutations cosegregate in crosses. SUI3 mutations are dominant and do not alter the thermal profile for growth. None of the mutations at the three loci suppresses known frameshift, missense or nonsense mutations. Each is capable of suppressing the nine different point mutations of the initiator codon at HIS4 or HIS4-lacZ as well as a two base change (ACC) and a three base deletion of the AUG codon, suggesting that the site of suppression resides outside the normal initiator region. sui1 and sui2 suppressor mutations were mapped to chromosomes XIV and X, respectively. Suppression by sui1, sui2 and SUI3 mutations results in 14-, 11- and 47-fold increases, respectively, relative to isogenic parent strains, in the expression of a HIS4 allele lacking the initiator AUG codon. Part of this increase in the HIS4 expression by sui2 and SUI3 can be attributed to increases of HIS4 mRNA levels, presumably mediated by perturbation of the general amino acid control system of yeast.
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| | ==Labs working on this gene== | | ==Labs working on this gene== |
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| | ==References== | | ==References== |
| − | 1.Hengfu Yin;Peng Gao;Chengwu Liu;Jun Yang;Zhongchi Liu;Da Luo
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| − | SUI-family genes encode phosphatidylserine synthases and regulate stem development in rice
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| − | Planta, 2013, 237(1): 15-27
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| | ==Structured Information== | | ==Structured Information== |
| | + | [[Category:Genes]][[Category:Oryza Sativa Japonica Group]][[Category:Japonica Chromosome 01]] |
Latest revision as of 08:38, 16 June 2015
Please input one-sentence summary here.
Annotated Information
Function
Please input function information here.
Expression
Please input expression information here.
Evolution
Please input evolution information here.
You can also add sub-section(s) at will.
Labs working on this gene
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References
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Structured Information
