Homeodomain-leucine zipper proteins interact with a plant homologue of the transcriptional coactivator multiprotein bridging factor 1
StMStMBF1 (Solanum tuberosum multiprotein bridging factor 1) is a plant member of the MBF1 family of transcriptional co-activators. In an attempt to understand the role of StMBF1, we analyzed its interaction with plant transcription factors of the homeodomain-leucine zipper (Hd-Zip) family, a group...
| Authors: | , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2004 |
| Country: | Argentina |
| Institution: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repository: | CONICET Digital (CONICET) |
| Language: | English |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/85773 |
| Online Access: | http://hdl.handle.net/11336/85773 |
| Access Level: | Open access |
| Keyword: | DNA-BINDING Hd-Zip protein Leucine zipper https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| Summary: | StMStMBF1 (Solanum tuberosum multiprotein bridging factor 1) is a plant member of the MBF1 family of transcriptional co-activators. In an attempt to understand the role of StMBF1, we analyzed its interaction with plant transcription factors of the homeodomain-leucine zipper (Hd-Zip) family, a group of proteins with a typical leucine zipper motif adjacent to a homeodomain. StMBF1 is able to interact in vitro with the Hd-Zip protein Hahb-4 both in the presence and absence of DNA. Upon binding, StMBF1 increases the DNA binding affinity of Hahb-4, and of another plant homeodomain containing protein from the GL2/Hd-Zip IV family, HAHR-1. The biological role of interactions is discussed in this paper. |
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