Plant Transcription factor database - Universität Potsdam
version: 3.0

Zea mays MBF1 Family


Tsuda et al. 2004: Multiprotein bridging factor 1 (MBF1) is known to be a transcriptional co-activator that mediates transcriptional activation by bridging between an activator and a TATA-box binding protein (TBP). We demonstrated that expression of every three MBF1 from Arabidopsis partially rescues the yeast mbf1 mutant phenotype, indicating that all of them function as co-activators for GCN4-dependent transcriptional activation. We also report that each of their subtypes shows distinct tissue-specific expression patterns and responses to phytohormones. These observations suggest that even though they share a similar biochemical function, each MBF1 has distinct roles in various tissues and conditions.

Members of this family
  SHOULD possess MBF1 domain

Domain alignments

This family is also present in:


There are 12 gene models in this family

Gene modelDescriptionDomains
GRMZM2G019031_P01 HTH_3 MBF1
GRMZM2G019031_P02 MBF1
GRMZM2G051135_P01 MBF1
GRMZM2G094912_P01 HTH_3 MBF1
GRMZM2G094912_P02 MBF1
GRMZM2G094912_P03 HTH_3 MBF1
GRMZM2G101480_P01 HTH_3 MBF1
GRMZM2G101480_P02 HTH_3 MBF1
GRMZM2G101480_P03 MBF1
GRMZM2G101480_P04 MBF1
GRMZM2G101480_P05 MBF1
GRMZM2G101480_P07 MBF1

General references

Tsuda, K; Tsuji, T; Hirose, S; Yamazaki, K. 2004. Three Arabidopsis MBF1 homologs with distinct expression profiles play roles as transcriptional co-activators. Plant Cell Physiol. 45(2):225-31 PUBMEDID:14988493