NCBI Accession #
NP_193612.1
NCBI GenBank Nucleotide #
NM_117993.3
NCBI Official Full Name
myb domain protein 98
NCBI Official Symbol
MYB98
NCBI Official Synonym Symbols
AtMYB98; F28A21.180; F28A21_180; myb domain protein 98
NCBI Protein Information
myb domain protein 98
NCBI Summary
MYB98 is a member of the R2R3-MYB gene family, the members of which likely encode transcription factors. Within an ovule, MYB98 is expressed exclusively in the synergid cells, and mutations in this gene affect the female gametophyte specifically. myb98 female gametophytes are affected in two unique features of the synergid cell, pollen tube guidance and the filiform apparatus, but are otherwise normal. This suggests that MYB98 controls the development of specific features within the synergid cell during female gametophyte development. MYB98 also is expressed in trichomes and endosperm. Homozygous myb98 mutants exhibit no sporophytic defects, including trichome and endosperm defects.
UniProt Synonym Gene Names
AtMYB98
UniProt Protein Name
Transcription factor MYB98
UniProt Synonym Protein Names
Myb-related protein 98
UniProt Primary Accession #
Q9S7L2
UniProt Secondary Accession #
Q3HSE6; A0MF81
UniProt Related Accession #
Q9S7L2
UniProt Comments
Transcription factor that binds to the motif 5'-GTAACNT-3' in the promoter of target genes (e.g. DD11 and DD18) and promotes their expression within synergid cells (e.g. in the filiform apparatus) in ovules (PubMed:16214903, PubMed:17693534, PubMed:18410484, PubMed:17937500). Required for the formation of the filiform apparatus during synergid cell differentiation in the female gametophyte (PubMed:16214903). Involved in pollen tube guidance to the micropyle (PubMed:16214903, PubMed:17937500, PubMed:23093426).