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Showing content from https://link.springer.com/doi/10.1007/PL00008693 below:

Identification of a hybrid-specific expressed gene encoding novel RNA-binding protein in wheat seedling leaves using differential display of mRNA

A hybrid-specific expressed cDNA fragment, designated as AG5, has been identified in wheat seedling leaves using differential mRNA display. AG5 contains an open reading frame (ORF) encoding 183 amino acid residues. Comparison with amino acid sequences in GenBank revealed that the AG5 protein is homologous to a group of Gly-rich proteins with consensus sequence-type RNA-binding domains (CS-RBD). Structural analysis showed that AG5 protein contains five motifs, including a consensus sequence-type RNA-binding domain near its N-terminus, arginine/aspartic acid repeats and a Gly-rich region in its center, a Cys-X₂-Cys-X₄-His-X₄-Cys (CCHC) zinc finger motif in the Gly-rich region, and TrySer₂ArgAsp₂Arg repeats towards its C-terminus. Of all previously described RNA-binding proteins, only RZ-1 from tobacco has a similar structure to the AG5 protein, but RZ-1 lacks a TrySer2ArgAsp2Arg repeat motif, indicating that the two proteins may belong to a family of closely related proteins in plants. The possible role of AG5 and its relation to wheat heterosis are discussed.

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1. Department of Plant Genetics and Breeding, China Agricultural University, Beijing 100094, China e-mail: QXSUN62@public.bta.net.cn Tel.: +86-10-62892571; Fax: +86-10-62891821, , , , , , CN

   Z. Ni, Q. Sun, Z. Liu, L. Wu & X. Wang

1. Z. Ni
2. Q. Sun
3. Z. Liu
4. L. Wu
5. X. Wang

Received: 21 November 1999 / Accepted: 20 March 2000

Ni, Z., Sun, Q., Liu, Z. et al. Identification of a hybrid-specific expressed gene encoding novel RNA-binding protein in wheat seedling leaves using differential display of mRNA. Mol Gen Genet 263, 934–938 (2000). https://doi.org/10.1007/PL00008693

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• Issue Date: August 2000

• DOI: https://doi.org/10.1007/PL00008693

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