LMPD Database

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LMP010485

UniProt Annotations

Entry Information
Gene Namehomeobox-leucine zipper protein MERISTEM L1
Protein EntryATML1_ARATH
UniProt IDQ8RWU4
SpeciesArabidopsis
Comments
Comment typeDescription
Developmental StageFirst expressed in the apical cell after the first asymmetric division of the zygote. Expressed in all proembryo cells until the eight-cell stage, and then restricted to the protoderm in the 16-cell proembryo. Not detected in the torpedo stage, but reappeared later in the L1 layer of the shoot apical meristem in the mature embryo. After germination, the L1 layer-specific expression pattern is maintained in the vegetative shoot apical meristem, inflorescence, floral meristems, and the young floral organ primordia. Finally, expressed in the protoderm of the ovule primordia and integuments and gradually restricted to the endothelium surrounding the embryo sac. {ECO:0000269|PubMed:10571886, ECO:0000269|PubMed:8989876}.
FunctionProbable transcription factor involved in cell specification and pattern formation during embryogenesis. Binds to the L1 box DNA sequence 5'-TAAATG[CT]A-3'. Plays a role in maintaining the identity of L1 cells, possibly by interacting with their L1 box or other target-gene promoters. Functionally redundant to PDF2. {ECO:0000269|PubMed:11439135, ECO:0000269|PubMed:12505995}.
Sequence CautionSequence=AAB49378.1; Type=Miscellaneous discrepancy; Note=Probable cloning artifact leading to a deletion into the sequence.; Evidence={ECO:0000305}; Sequence=CAB36819.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305}; Sequence=CAB81282.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
SimilarityBelongs to the HD-ZIP homeobox family. Class IV subfamily. {ECO:0000305}.
SimilarityContains 1 homeobox DNA-binding domain. {ECO:0000255|PROSITE-ProRule:PRU00108}.
SimilarityContains 1 START domain. {ECO:0000255|PROSITE- ProRule:PRU00197}.
Subcellular LocationNucleus {ECO:0000305}.