Comparative study of CCCH Zinc finger gene family in Arabidopsis thaliana and rice

Zincfinger CCCH (C3HZNF) genes encode proteins with three cysteines and one histidine. The proteins of this family are an important group of zinc finger transcription factors that are effective in various activities such as plant growth and response to biotic and abiotic stresses and actually They are effective in stresses tolarance. In this article, C3HZNF protein data of Arabidopsis and rice plants were used to analyze phylogenetic relationships, exon/intron structure, motifs/domains organization. These studies showed the high homology of these genes with CCCH genes in rice. Analysis of the gene structure showed that AtC3Hs have a variable number of exons, but in general, genes with 1 and 7 exons contain the largest number. study the physical and chemical properties of this family showed that AtC3H36 is the most stable protein among the members of this family, and the highest isoelectric point belongs to the AtC3H7(9.96) protein. The observations showed that the members of this gene family have 1 to 6 Znf C3H domains and a total of 17 functional domains. Phylogeny comparison between C3H proteins in rice and Arabidopsis showed that these proteins are highly conserved. In the comparative phylogenetic analysis of AtC3H and OsC3H, the orthologous genes were placed in one group. For example, OsC3H8 showed close homology to HUA1 in Arabidopsis (AtC3H37), suggesting that this gene is involved in flower development. This study provides valuable information about the important CCCH zinc finger gene family in Arabidopsis and rice. This information can be helpful in understanding how these genes work to help plant tolarance when faced with biotic and abiotic stresses.