Plant Transcription factor database - Universität Potsdam
version: 3.0

Chlamydomonas reinhardtii SBP Family


Cardon et al. 1999: The Arabidopsis thaliana SPL gene family represents a group of structurally diverse genes encoding putative transcription factors found apparently only in plants. The distinguishing characteristic of the SPL gene family is the SBP-box encoding a conserved protein domain of 76 amino acids in length, the SBP-domain, which is responsible for the interaction with DNA. We present here characterisation of 12 members of the SPL gene family. These genes show highly diverse genomic organisations and are found scattered over the Arabidopsis genome. Some SPL genes are constitutively expressed, while transcriptional activity of others is under developmental control. Based on phylogenetic reconstruction, gene structure and expression patterns, they can be divided into subfamilies. In addition to the Arabidopsis SPL genes, we isolated and determined the sequences of three SBP-box genes from Antirrhinum majus and seven from Zea mays.

Members of this family
  SHOULD possess SBP domain

Domain alignments

This family is also present in:


There are 23 gene models in this family

Gene modelDescriptionDomains
101247 e_gwH.16.186.1 SBP
101657 e_gwH.1.761.1 SBP
105679 e_gwH.38.75.1 SBP
106739 e_gwH.46.36.1 SBP
108149 e_gwH.74.33.1 SBP
108444 e_gwH.81.18.1 SBP
115124 e_gwW.12.216.1 SBP
115254 e_gwW.13.162.1 SBP
118761 e_gwW.28.194.1 SBP
120852 e_gwW.40.103.1 SBP
121606 e_gwW.50.58.1 SBP
121939 e_gwW.51.40.1 SBP
170753 fgenesh2_pg.C_scaffold_14000203 SBP
171833 fgenesh2_pg.C_scaffold_1000454 SBP
186869 estExt_fgenesh2_pg.C_50271 SBP
195928 MER_Chlre2_kg.scaffold_24000220 SBP
288620 au.g6774_t1 SBP
290479 au.g8505_t1 SBP
291579 au.g9524_t1 Pericardin_rpt SBP
405089 pasa_Sanger_mRNA2634 SBP
414856 pasa_Sanger_mRNA20741 SBP
93505 fgenesh1_est.C_scaffold_5000041 SBP
96716 e_gwH.8.287.1 SBP

General references

Guo, AY; Zhu, QH; Gu, X; Ge, S; Yang, J; Luo, J. 2008. Genome-wide identification and evolutionary analysis of the plant specific SBP-box transcription factor family. Gene 418(1-2):1-8 PUBMEDID:18495384
Klein, J; Saedler, H; Huijser, P. 1996. A new family of DNA binding proteins includes putative transcriptional regulators of the Antirrhinum majus floral meristem identity gene SQUAMOSA. Mol. Gen. Genet. 250(1):7-16 PUBMEDID:8569690