Gene Details:

• Gene ID: AT2G42870
• Gene Symbol: HLH1, PAR1
• Gene Name: HELIX-LOOP-HELIX 1, PHY RAPIDLY REGULATED 1
• Description: phy rapidly regulated 1;(source:Araport11)
• TAIR Accession: locus:2052372
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT2G42870.1

Plant Ontology Annotations:

• PO:0000037  — shoot axis apex — ápice del epiblasto (epiblastema) (Spanish, exact), シュート頂、茎頂 (Japanese, exact)
• PO:0008019  — leaf lamina base — base de la lámina de la hoja (Spanish, exact), 葉身基部 (Japanese, exact)
• PO:0009005  — root — raíz (Spanish, exact), radices (exact, plural), radix (exact), 根 (Japanese, exact), aerial root (narrow), climbing root (narrow)
• PO:0009009  — plant embryo — embrión (Spanish, exact), 植物胚 (Japanese, exact), germ (related), embryo (broad)
• PO:0009025  — vascular leaf — foliage leaf (exact), hoja vascular (Spanish, exact), leaf, vascular (exact), vascular leaves (exact, plural), 維管束のある葉, または維管束植物の葉 (Japanese, exact), crozier (related), macrophyll (related), megaphyll (related), ascidia (narrow), ascidium (narrow), fiddlehead (narrow), frond (narrow), needle-like leaf (narrow), pitcher (narrow), pitcher blade (narrow), pitcher-blade (narrow), scale-like leaf (narrow), sterile frond (narrow), trophophyll (narrow)
• PO:0009031  — sepal — sépalo (Spanish, exact), がく片 (Japanese, exact)
• PO:0009046  — flower — flor (Spanish, exact), 花 (Japanese, exact), floret (related), Asteraceae floret (narrow), basal flower (narrow), double flower (narrow), hermaphrodite flower (narrow), monoclinous flower (narrow), perfect flower (narrow)
• PO:0020038  — petiole — pecíolo (Spanish, exact), 葉柄 (Japanese, exact)
• PO:0025022  — collective leaf structure — estructura colectiva de hoja (Spanish, exact), leaf series (exact), 葉が集まった構造 (Japanese, exact), leaf whorl (narrow), rosette (narrow), cycle (broad), verticil (broad)

Gene Ontology:

• GO:0009641  — acts upstream of or within — shade avoidance
• GO:0003712  — enables — transcription coregulator activity
• GO:0045892  — acts upstream of or within — negative regulation of DNA-templated transcription
• GO:0042803  — enables — protein homodimerization activity
• GO:0005634  — located in — nucleus
• GO:0009507  — located in — chloroplast
• GO:0032502  — acts upstream of or within — developmental process

Germplasm Phenotype:

• SAIL_668_E10 (homo)  — Under FRc conditions, the length mutant hypocotyls is decreased compared to that of wild-type plants. Under Rc conditions, the hypocotyl length is decreased and the cotyledon area is similar to that of wild type.

Function-related keywords:

• shoot axis apex ,  leaf lamina base ,  root ,  plant embryo ,  vascular leaf ,  sepal ,  flower ,  petiole ,  collective leaf structure

Literature:

• Inactivation of the chloroplast ATP synthase gamma subunit results in high non-photochemical fluorescence quenching and altered nuclear gene expression in Arabidopsis thaliana.   DOI:  10.1074/jbc.M308435200 ;  PMID:  14576160
• Identification of primary target genes of phytochrome signaling. Early transcriptional control during shade avoidance responses in Arabidopsis.   DOI:  10.1104/pp.105.076331 ;  PMID:  16565297
• Functional profiling reveals that only a small number of phytochrome-regulated early-response genes in Arabidopsis are necessary for optimal deetiolation.   DOI:  10.1105/tpc.106.042200 ;  PMID:  16891401
• Analysis of transcription factor HY5 genomic binding sites revealed its hierarchical role in light regulation of development.   DOI:  10.1105/tpc.106.047688 ;  PMID:  17337630
• Interaction of shade avoidance and auxin responses: a role for two novel atypical bHLH proteins.   DOI:  10.1038/sj.emboj.7601890 ;  PMID:  17948056
• PAR1 and PAR2 integrate shade and hormone transcriptional networks.   DOI:  10.4161/psb.3.7.5599 ;  PMID:  19704482
• The Arabidopsis mitogen-activated protein kinase phosphatase PP2C5 affects seed germination, stomatal aperture, and abscisic acid-inducible gene expression.   DOI:  10.1104/pp.110.156109 ;  PMID:  20488890
• Genome-wide classification and evolutionary analysis of the bHLH family of transcription factors in Arabidopsis, poplar, rice, moss, and algae.   DOI:  10.1104/pp.110.153593 ;  PMID:  20472752
• The shade avoidance syndrome in Arabidopsis: a fundamental role for atypical basic helix-loop-helix proteins as transcriptional cofactors.   DOI:  10.1111/j.1365-313X.2011.04485.x ;  PMID:  21205034
• A dual mechanism controls nuclear localization in the atypical basic-helix-loop-helix protein PAR1 of Arabidopsis thaliana.   DOI:  10.1093/mp/sss006 ;  PMID:  22311779
• Interactions between HLH and bHLH factors modulate light-regulated plant development.   DOI:  10.1093/mp/sss011 ;  PMID:  22331621
• The bHLH proteins BEE and BIM positively modulate the shade avoidance syndrome in Arabidopsis seedlings.   DOI:  10.1111/tpj.12264 ;  PMID:  23763263
• Four distinct types of dehydration stress memory genes in Arabidopsis thaliana.   DOI:  10.1186/1471-2229-13-229 ;  PMID:  24377444
• Both PHYTOCHROME RAPIDLY REGULATED1 (PAR1) and PAR2 promote seedling photomorphogenesis in multiple light signaling pathways.   DOI:  10.1104/pp.113.227231 ;  PMID:  24335334
• Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis.   DOI:  10.1093/jxb/eru083 ;  PMID:  24609653
• Regulation of Carotenoid Biosynthesis by Shade Relies on Specific Subsets of Antagonistic Transcription Factors and Cofactors.   DOI:  10.1104/pp.15.00552 ;  PMID:  26082398
• FAR-RED INSENSITIVE 219/JAR1 Contributes to Shade Avoidance Responses of Arabidopsis Seedlings by Modulating Key Shade Signaling Components.   DOI:  10.3389/fpls.2017.01901 ;  PMID:  29163619
• Arabidopsis FHY3 and FAR1 Regulate the Balance between Growth and Defense Responses under Shade Conditions.   DOI:  10.1105/tpc.18.00991 ;  PMID:  31311834
• FAR-RED ELONGATED HYPOCOTYLS3 negatively regulates shade avoidance responses in Arabidopsis.   DOI:  10.1111/pce.13630 ;  PMID:  31351015
• and heat-inducible cell elongation via a two-step HLH/bHLH system.   DOI:  10.1093/jxb/eraa567 ;  PMID:  33258952
• Photodamage of the photosynthetic apparatus and its dependence on the leaf developmental stage in the npq1 Arabidopsis mutant deficient in the xanthophyll cycle enzyme violaxanthin de-epoxidase.   DOI:  10.1104/pp.124.1.273 ;  PMID:  10982442
• Interaction of shade avoidance and auxin responses: a role for two novel atypical bHLH proteins.   DOI:  10.1038/sj.emboj.7601890 ;  PMID:  17948056

Sequence: