Transcription Factor Family: SBP
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.
There are 16 transcription factors which have been predicted for 3D structure in this family:
| Transcription Factor ID | Gene Description |
| AT1G02065.1 | Description: SPL8 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 8); DNA binding; Organism: Arabidopsis thaliana; Chromosome: 1; GeneType: Protein Coding; NCBI gene id: 839275 |
| AT1G02065.2 | Description: SPL8 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 8); DNA binding; Organism: Arabidopsis thaliana; Chromosome: 1; GeneType: Protein Coding; NCBI gene id: 839275 |
| AT1G20980.1 | Description: SPL14 (squamosa promoter binding protein-like 14); DNA binding / transcription activator/ transcription factor; Organism: Arabidopsis thaliana; Chromosome: 1; GeneType: Protein Coding; NCBI gene id: 838692 |
| AT1G27360.1 | Description: squamosa promoter-binding protein-like 11 (SPL11); Organism: Arabidopsis thaliana; Chromosome: 1; GeneType: Protein Coding; NCBI gene id: 839625 |
| AT1G27370.1 | Description: squamosa promoter-binding protein-like 10 (SPL10); Organism: Arabidopsis thaliana; Chromosome: 1; GeneType: Protein Coding; NCBI gene id: 839626 |
| AT1G53160.1 | Description: SPL4 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 4); DNA binding / transcription factor; Organism: Arabidopsis thaliana; Chromosome: 1; GeneType: Protein Coding; NCBI gene id: 841749 |
| AT1G69170.1 | Description: squamosa promoter-binding protein-like 6 (SPL6); Organism: Arabidopsis thaliana; Chromosome: 1; GeneType: Protein Coding; NCBI gene id: 843248 |
| AT2G33810.1 | Description: SPL3 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 3); DNA binding / transcription factor; Organism: Arabidopsis thaliana; Chromosome: 2; GeneType: Protein Coding; NCBI gene id: 817948 |
| AT2G42200.1 | Description: SPL9 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 9); transcription factor; Organism: Arabidopsis thaliana; Chromosome: 2; GeneType: Protein Coding; NCBI gene id: 818820 |
| AT2G47070.1 | Description: SPL1 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 1); DNA binding / transcription factor; Organism: Arabidopsis thaliana; Chromosome: 2; GeneType: Protein Coding; NCBI gene id: 819321 |
| AT3G15270.1 | Description: SPL5 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 5); DNA binding / transcription factor; Organism: Arabidopsis thaliana; Chromosome: 3; GeneType: Protein Coding; NCBI gene id: 820758 |
| AT3G57920.1 | Description: SPL15 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 15); DNA binding / transcription factor; Organism: Arabidopsis thaliana; Chromosome: 3; GeneType: Protein Coding; NCBI gene id: 824961 |
| AT3G60030.1 | Description: SPL12 (squamosa promoter-binding protein-like 12); transcription factor; Organism: Arabidopsis thaliana; Chromosome: 3; GeneType: Protein Coding; NCBI gene id: 825173 |
| AT5G18830.1 | Description: SPL7 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 7); DNA binding / transcription factor; Organism: Arabidopsis thaliana; Chromosome: 5; GeneType: Protein Coding; NCBI gene id: 832001 |
| AT5G43270.1 | Description: SPL2 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 2); DNA binding / transcription factor; Organism: Arabidopsis thaliana; Chromosome: 5; GeneType: Protein Coding; NCBI gene id: 834345 |
| AT5G50670.1 | Description: squamosa promoter-binding protein, putative; Organism: Arabidopsis thaliana; Chromosome: 5; GeneType: Protein Coding; NCBI gene id: 835138 |