Proteins
Curated comments from UniProt
Type | Comment | Proteins |
---|---|---|
HNRPQ_ARATH HNRPQ_ARATH-3 HNRPQ_ARATH-2 | developmental stage | In young plants, expressed in the distal regions of cotyledons, throughout leaves and root apical meristem, lateral root meristems and young floral buds. Strongly detected in the vascular tissues of various organs (e.g. roots, leaves, hypocotyls, sepals, petals, anther filaments) as well as in the gynophore. In the gynoecium, mainly detected in apical and basal regions as well as in the developing ovules in these regions. |
HNRPQ_ARATH HNRPQ_ARATH-3 HNRPQ_ARATH-2 | function | Transcriptional activator that binds DNA on GAGA-like motif and 5'-(C/G)ACGTG(G/T)C(A/G)-3' consensus motif in the promoters of target genes (PubMed:27495811). Component of ribonucleosomes, which are complexes of at least 20 other different heterogeneous nuclear ribonucleoproteins (hnRNP). hnRNP play an important role in processing of precursor mRNA in the nucleus (By similarity). Required during flower development and for cell fate determination (PubMed:21304947). Acts both as an antagonist and as a promoter of polycomb LHP1 gene regulation activity, depending of target genes, to regulate the transcription of stress-responsive and flowering genes (PubMed:21304947, PubMed:27495811). May regulate histone H3 trimethylation on lysine 27 (H3K27me3) (PubMed:21304947). Recognizes and binds histone H3 tails methylated at 'Lys-4' (H3K4me) and acetylated at 'Lys-9' (H3K9ac), leading to epigenetic activation. When in complex with LHP1, recognizes and binds histone H3 tails methylated at 'Lys-4' (H3K4me) and 'Lys-27' (H3K27me), mostly corresponding to stress-responsive genes (PubMed:27495811). May function as a suppressor of cell-autonomous immune responses involving glucosinolates, salicylic acid (SA) and jasmonic acid (JA) pathways toward pathogenic bacteria and fungi (PubMed:24914891). |
HNRPQ_ARATH HNRPQ_ARATH-3 HNRPQ_ARATH-2 | subcellular location | Localized in cytoplasmic mRNP granules containing untranslated mRNAs. |
HNRPQ_ARATH HNRPQ_ARATH-3 HNRPQ_ARATH-2 | tissue specificity | Predominantly expressed in vascular and meristematic tissues. Expressed throughout development in seedlings, roots, leaves, floral buds and siliques. |
Function
Gene Ontology
cellular component | |
---|---|
endoplasmic reticulum | ECO |
nucleus | ECO |
cytoplasm | ECO |
molecular function | |
chromatin binding | ECO |
sequence-specific DNA binding | ECO |
mRNA binding | ECO |
biological process | |
regulation of gene expression | ECO |
innate immune response | ECO |
positive regulation of DNA-templated transcription | ECO |
negative regulation of innate immune response | ECO |
response to bacterium | ECO |
epigenetic regulation of gene expression | ECO |
defense response to bacterium | ECO |
regulation of cell fate determination | ECO |
cellular response to jasmonic acid stimulus | ECO |
defense response to fungus | ECO |
regulation of flower development | ECO |
regulation of glucosinolate biosynthetic process | ECO |