Protein: BTB/POZ and TAZ domain-containing protein 2 (BTB and TAZ domain protein 2) (Q94BN0)
Organism: Arabidopsis thaliana (Mouse-ear cress)
Function: May act as a substrate-specific adapter of an E3 ubiquitin-protein ligase complex (CUL3-RBX1-BTB) which mediates the ubiquitination and subsequent proteasomal degradation of target proteins. Plays a key role as a component of the TAC1-mediated telomerase activation pathway certainly by targeting a telomerase repressor to degradation. Seems to occupy an integral position in a complex signaling network that perceives, integrates, and responds to multiple, and sometimes competing, signals. Enhances responses to auxin in postgermination and vegetative development. Also negatively regulates ABA- and sugar-mediated inhibition of the germination. Essential for female and male gametophyte development.
Subcellular location: Nucleus {ECO:0000269|PubMed:19054356}. Cytoplasm {ECO:0000269|PubMed:19054356}.
Sequence: MEAVLVAMSVPATTEDDGFSLITDKLSYNLTPTSDVEIVTSDNRRIPAHSGVLASASPVLMNIMKKPMRRYRGCGSKRVIKILGVPCDAVSVFIKFLYSSSLTEDEMERYGIHLLALSHVYMVTQLKQRCSKGVVQRLTTENVVDVLQLARLCDAPDVCLRSMRLIHSQFKTVEQTEGWKFIQEHDPFLELDILQFIDDAESRKKRRRRHRKEQDLYMQLSEAMECIEHICTQGCTLVGPSNVVDNNKKSMTAEKSEPCKAFSTCYGLQLLIRHFAVCKRRNNDKGCLRCKRMLQLFRLHSLICDQPDSCRVPLCRQFRKRGEQDKKMGEDTKWKLLVTRVVSAKAMTSLCQSKKNKCEQAQGV
InterPro domains: - IPR035898: TAZ domain superfamily (homologous_superfamily) [209-345]
- IPR000210: BTB/POZ domain (domain) [33-138]
- IPR011333: SKP1/BTB/POZ domain superfamily (homologous_superfamily) [25-137]
- IPR044513: BTB/POZ and TAZ domain-containing protein 1/2/3/4/5 (family) [28-356]
- IPR000197: Zinc finger, TAZ-type (domain) [214-316]
Interaction partners: - Transcription factor GTE11
- Transcription factor GTE9
- Cullin-3A
- Transcriptional regulator TAC1
- Granule-bound starch synthase 1, chloroplastic/amyloplastic
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0005515 (protein binding), GO:0005516 (calmodulin binding)
Biological Process (BP): GO:0008150 (biological process), GO:0065007 (biological regulation), GO:0050896 (response to stimulus), GO:0050789 (regulation of biological process), GO:0032502 (developmental process), GO:0032501 (multicellular organismal process), GO:0048856 (anatomical structure development), GO:0007275 (multicellular organism development), GO:0042221 (response to chemical), GO:0019222 (regulation of metabolic process), GO:0009719 (response to endogenous stimulus), GO:0050794 (regulation of cellular process), GO:0006950 (response to stress), GO:0010035 (response to inorganic substance), GO:0006979 (response to oxidative stress), GO:0009889 (regulation of biosynthetic process), GO:0051171 (regulation of nitrogen compound metabolic process), GO:0060255 (regulation of macromolecule metabolic process), GO:0031323 (regulation of cellular metabolic process), GO:1901700 (response to oxygen-containing compound), GO:0080090 (regulation of primary metabolic process), GO:0048229 (gametophyte development), GO:0010033 (response to organic substance), GO:0009725 (response to hormone), GO:0009555 (pollen development), GO:0010556 (regulation of macromolecule biosynthetic process), GO:0009553 (embryo sac development), GO:0009751 (response to salicylic acid), GO:0031326 (regulation of cellular biosynthetic process), GO:0019219 (regulation of nucleobase-containing compound metabolic process), GO:0009733 (response to auxin), GO:0051252 (regulation of RNA metabolic process), GO:0042542 (response to hydrogen peroxide), GO:0014070 (response to organic cyclic compound), GO:0000302 (response to reactive oxygen species), GO:0010468 (regulation of gene expression), GO:2001141 (regulation of RNA biosynthetic process), GO:0006355 (regulation of DNA-templated transcription), GO:1903506 (regulation of nucleic acid-templated transcription)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0005737 (cytoplasm), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0043231 (intracellular membrane-bounded organelle), GO:0005634 (nucleus)