SBP
From RiceWiki
Brief Introduction
- SBP-box gene family belongs to plant-specific zinc finger transcription factor which was first identified in Antirrhinum majus for their interaction with the promoter sequence of the floral meristem identity gene SQUAMOSA [1][2][3][4][5][6]. SBP-box genes encode proteins sharing a conserved DNA-binding domain of 70 ~ 80 amino acid residues, with a novel zinc finger motif that contains two zinc-binding sites. It also has a nuclear localization signal (NLS) at its C-terminus[3][4][5][6].
Figure 1. Gene structure of BGIOSGA020577 - As no SBP-box gene has been found in animals to this day, it was suggested that SPL genes might appear after the divergenece of plants and animals[6].
- As an ubiquitous TF in higher plants, SBP-box genes play important roles in plant growth and flower development. It has been reported that AtSPL8 in Arabidopsis can affect pollen sac development[3][7] and SPL14 can conferring resistance to the programmed cell death (PCD)-inducing fungal toxin fumonisin B1 (FB1)[4][8].
- Pfam: PF03110 || InterPro: IPR004333 ||
Japonica Group
Indica Group
References
- ↑
Klein J, Saedler H, Huijser P. A new family of DNA binding proteins includes putative transcriptional regulators of theAntirrhinum majus floral meristem identity geneSQUAMOSA[J]. Molecular and General Genetics MGG, 1996, 250(1): 7-16.
- ↑
Cardon G, Höhmann S, Klein J, et al. Molecular characterisation of the Arabidopsis SBP-box genes[J]. Gene, 1999, 237(1): 91-104.
- ↑ 3.0 3.1 3.2
Yang Z, Wang X, Gu S, et al. Comparative study of SBP-box gene family in Arabidopsis and rice[J]. Gene, 2008, 407(1): 1-11.
- ↑ 4.0 4.1 4.2
Riese M, Höhmann S, Saedler H, et al. Comparative analysis of the SBP-box gene families in P. patens and seed plants[J]. Gene, 2007, 401(1): 28-37.
- ↑ 5.0 5.1
Guo A Y, Zhu Q H, Gu X, et al. Genome-wide identification and evolutionary analysis of the plant specific SBP-box transcription factor family[J]. Gene, 2008, 418(1): 1-8.
- ↑ 6.0 6.1 6.2
Xie K, Wu C, Xiong L. Genomic organization, differential expression, and interaction of SQUAMOSA promoter-binding-like transcription factors and microRNA156 in rice[J]. Plant physiology, 2006, 142(1): 280-293.
- ↑
Unte U S, Sorensen A M, Pesaresi P, et al. SPL8, an SBP-box gene that affects pollen sac development in Arabidopsis[J]. The Plant Cell Online, 2003, 15(4): 1009-1019.
- ↑
Stone J M, Liang X, Nekl E R, et al. Arabidopsis AtSPL14, a plant‐specific SBP‐domain transcription factor, participates in plant development and sensitivity to fumonisin B1[J]. The Plant Journal, 2005, 41(5): 744-754.
