Reviewed,
UniProtKB/Swiss-Prot O22476 (BRI1_ARATH)
Last modified
June 16, 2009.
Version 91.
History...
Clusters with 100%,
90%,
50% identity |
Documents (2) |
Third-party data |
Customize display | text xml rdf/xml gff fasta |
Names and origin
| Protein names | Recommended name: Protein BRASSINOSTEROID INSENSITIVE 1 Short name=AtBRI1 EC=2.7.11.1 Alternative name(s): Brassinosteroid LRR receptor kinase | ||||||
| Gene names |
| ||||||
| Organism | Arabidopsis thaliana (Mouse-ear cress) [Complete proteome] | ||||||
| Taxonomic identifier | 3702 [NCBI] | ||||||
| Taxonomic lineage | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › rosids › eurosids II › Brassicales › Brassicaceae › Arabidopsis |
Protein attributes
| Sequence length | 1196 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Receptor with a serine/threonine-protein kinase activity. Regulates, in response to brassinosteroid binding, a signaling cascade involved in plant development, including expression of light- and stress-regulated genes, promotion of cell elongation, normal leaf and chloroplast senescence, and flowering. Binds brassinolide, and less effectively castasterone, but not 2,3,22,23-O-tetramethylbrassinolide or ecdysone. May be involved in a feedback regulation of brassinosteroid biosynthesis. Phosphorylates BRI1-associated receptor kinase 1 (BAK1) and Transthyretin-Like protein (TTL) in vitro. Ref.2 Ref.3 |
| Catalytic activity | ATP + a protein = ADP + a phosphoprotein. |
| Enzyme regulation | Activated by Ser and Thr phosphorylation. |
| Subunit structure | Homodimer in the plasma membrane Probable. Heterodimer with BAK1 in the endosomes. Interacts with TTL in a kinase-dependent manner. |
| Subcellular location | Cell membrane; Single-pass type I membrane protein. Endosome membrane; Single-pass type I membrane protein. Ref.3 Ref.7 Ref.8 Ref.10 |
| Tissue specificity | |
| Developmental stage | Expressed constitutively in either dark- or light-grown seedlings. |
| Domain | Contains one leucine-zipper motif and two pairs of conservatively spaced Cys (Cys pair 1 and 2) involved in forming heterodimers. A 70 amino acid island between the 20th and the 21th LRR is essential for the binding of brassinosteroids. |
| Post-translational modification | Phosphorylated on at least 12 sites, with a preference for Ser residues. Ref.7 Ref.8 Ref.5 Ref.9 Ref.12 |
| Miscellaneous | Binding of brassinosteroid induces intramolecular autophosphorylation of BRI1. Interaction with BAK1 activates both receptor kinases and the full activation of either receptor kinase requires transphosphorylation by their partners. Optimum in vitro phosphorylation of the substrate requires Arg or Lys residues at P-3, P-4, and P+5 (relative to the phosphorylated amino acid at P=0). |
| Sequence similarities | Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. Contains 25 LRR (leucine-rich) repeats. Contains 1 protein kinase domain. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| itself | 2 | EBI-1797828,EBI-1797828 | ||
| Q94AG2 | 2 | EBI-1797828,EBI-1555537 | ||
| At4g35230 | Q944A7 | 4 | EBI-1797828,EBI-1797846 | |
| BAK1 | Q94F62 | 4 | EBI-1797828,EBI-617138 | |
| F6N23.9 | O65280 | 2 | EBI-1797828,EBI-1797930 | |
| TTL | Q9LVM5 | 3 | EBI-1797828,EBI-1803584 |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 23 | 23 | Potential | ||||||
| Chain | 24 – 1196 | 1173 | Protein BRASSINOSTEROID INSENSITIVE 1 | PRO_0000024305 | |||||
Regions | |||||||||
| Transmembrane | 793 – 813 | 21 | Potential | ||||||
| Repeat | 98 – 121 | 24 | LRR 1 | ||||||
| Repeat | 122 – 146 | 25 | LRR 2 | ||||||
| Repeat | 148 – 169 | 22 | LRR 3 | ||||||
| Repeat | 172 – 197 | 26 | LRR 4 | ||||||
| Repeat | 199 – 221 | 23 | LRR 5 | ||||||
| Repeat | 222 – 244 | 23 | LRR 6 | ||||||
| Repeat | 245 – 268 | 24 | LRR 7 | ||||||
| Repeat | 269 – 290 | 22 | LRR 8 | ||||||
| Repeat | 291 – 314 | 24 | LRR 9 | ||||||
| Repeat | 316 – 338 | 23 | LRR 10 | ||||||
| Repeat | 339 – 363 | 25 | LRR 11 | ||||||
| Repeat | 364 – 388 | 25 | LRR 12 | ||||||
| Repeat | 390 – 413 | 24 | LRR 13 | ||||||
| Repeat | 415 – 439 | 25 | LRR 14 | ||||||
| Repeat | 441 – 463 | 23 | LRR 15 | ||||||
| Repeat | 464 – 487 | 24 | LRR 16 | ||||||
| Repeat | 488 – 511 | 24 | LRR 17 | ||||||
| Repeat | 513 – 535 | 23 | LRR 18 | ||||||
| Repeat | 536 – 559 | 24 | LRR 19 | ||||||
| Repeat | 561 – 583 | 23 | LRR 20 | ||||||
| Repeat | 653 – 677 | 25 | LRR 21 | ||||||
| Repeat | 678 – 701 | 24 | LRR 22 | ||||||
| Repeat | 702 – 725 | 24 | LRR 23 | ||||||
| Repeat | 727 – 750 | 24 | LRR 24 | ||||||
| Domain | 883 – 1158 | 276 | Protein kinase | ||||||
| Repeat | 1175 – 1195 | 21 | LRR 25 | ||||||
| Nucleotide binding | 889 – 897 | 9 | ATP By similarity | ||||||
| Motif | 62 – 69 | 8 | Cys pair 1 | ||||||
| Motif | 763 – 770 | 8 | Cys pair 2 | ||||||
Sites | |||||||||
| Active site | 1009 | 1 | Proton acceptor By similarity | ||||||
| Binding site | 911 | 1 | ATP By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 838 | 1 | Phosphoserine | ||||||
| Modified residue | 842 | 1 | Phosphothreonine | ||||||
| Modified residue | 846 | 1 | Phosphothreonine | ||||||
| Modified residue | 851 | 1 | Phosphothreonine Potential | ||||||
| Modified residue | 858 | 1 | Phosphoserine | ||||||
| Modified residue | 872 | 1 | Phosphothreonine | ||||||
| Modified residue | 880 | 1 | Phosphothreonine | ||||||
| Modified residue | 887 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 891 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 981 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 982 | 1 | Phosphothreonine | ||||||
| Modified residue | 1035 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 1039 | 1 | Phosphothreonine Potential | ||||||
| Modified residue | 1042 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 1044 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 1045 | 1 | Phosphothreonine Potential | ||||||
| Modified residue | 1049 | 1 | Phosphothreonine Potential | ||||||
| Modified residue | 1060 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 1166 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 1168 | 1 | Phosphoserine | ||||||
| Modified residue | 1169 | 1 | Phosphothreonine Potential | ||||||
| Modified residue | 1172 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 1179 | 1 | Phosphoserine Potential | ||||||
| Modified residue | 1180 | 1 | Phosphothreonine Potential | ||||||
| Modified residue | 1187 | 1 | Phosphoserine Potential | ||||||
| Glycosylation | 112 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 154 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 233 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 275 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 351 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 387 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 401 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 438 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 510 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 545 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 573 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 636 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 653 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 737 | 1 | N-linked (GlcNAc...) Potential | ||||||
Experimental info | |||||||||
| Mutagenesis | 69 | 1 | C → Y in bri1-5; brassinosteroid-insensitive semi-dwarf mutant. | ||||||
| Mutagenesis | 611 | 1 | G → E in bri1-113; brassinosteroid-insensitive semi-dwarf mutant. | ||||||
| Mutagenesis | 613 | 1 | G → S in bri1-7; brassinosteroid-insensitive semi-dwarf mutant. | ||||||
| Mutagenesis | 644 | 1 | G → D in bri1-6; brassinosteroid-insensitive semi-dwarf mutant. | ||||||
| Mutagenesis | 662 | 1 | S → F in bri1-9; brassinosteroid-insensitive semi-dwarf mutant. | ||||||
| Mutagenesis | 750 | 1 | T → I in bri1-102; brassinosteroid-insensitive dwarf mutant. | ||||||
| Mutagenesis | 838 | 1 | S → A: Decreases peptide phosphorylation, but no effect on autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 842 | 1 | T → A: Decreases peptide phosphorylation, but no effect on autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 846 | 1 | T → A: Decreases peptide phosphorylation, but no effect on autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 858 | 1 | S → A: Decreases peptide phosphorylation, but no effect on autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 872 | 1 | T → A: 10-fold increase in peptide phosphorylation. Ref.12 | ||||||
| Mutagenesis | 909 | 1 | A → T in bri1-1; brassinosteroid-insensitive dwarf mutant. | ||||||
| Mutagenesis | 911 | 1 | K → E: Loss of kinase activity; dwarf mutant. Ref.5 | ||||||
| Mutagenesis | 983 | 1 | R → N in bri1-8; brassinosteroid-insensitive dwarf mutant. | ||||||
| Mutagenesis | 983 | 1 | R → Q in bri1-108; brassinosteroid-insensitive dwarf mutant. | ||||||
| Mutagenesis | 1031 | 1 | A → W in bri1-104; brassinosteroid-insensitive dwarf mutant, but no effect on interaction with TTL. | ||||||
| Mutagenesis | 1039 | 1 | T → A: Abolishes peptide phosphorylation, and to a lower level autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 1042 | 1 | S → A: Abolishes peptide phosphorylation, and to a lower level autophosphorylation. | ||||||
| Mutagenesis | 1044 | 1 | S → A: Abolishes peptide phosphorylation, and autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 1045 | 1 | T → A: Abolishes peptide phosphorylation, and autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 1048 | 1 | G → D in bri1-115; brassinosteroid-insensitive dwarf mutant and no interaction with TTL. | ||||||
| Mutagenesis | 1049 | 1 | T → A: Abolishes peptide phosphorylation, and autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 1078 | 1 | E → K in bri1-101; brassinosteroid-insensitive dwarf mutant and no interaction with TTL. | ||||||
| Mutagenesis | 1139 | 1 | D → N in bri1-117; brassinosteroid-insensitive dwarf mutant. | ||||||
| Mutagenesis | 1168 | 1 | S → A: Decreases peptide phosphorylation, but no effect on autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 1172 | 1 | S → A: Decreases peptide phosphorylation, but no effect on autophosphorylation. Ref.12 | ||||||
| Mutagenesis | 1179 – 1180 | 2 | ST → A: Decreases peptide phosphorylation, but no effect on autophosphorylation. | ||||||
| Mutagenesis | 1187 | 1 | S → A: Decreases peptide phosphorylation, but no effect on autophosphorylation. Ref.12 | ||||||
Sequences
| ||||||||||||||||||
References
| « Hide 'large scale' references | |
| [1] | "A putative leucine-rich repeat receptor kinase involved in brassinosteroid signal transduction." Li J., Chory J. Cell 90:929-938(1997) [PubMed: 9298904] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], TISSUE SPECIFICITY, MUTANTS BRI1-101; BRI1-104; BRI1-113 AND BRI1-115. Strain: cv. Columbia. |
| [2] | "Brassinosteroid-insensitive dwarf mutants of Arabidopsis accumulate brassinosteroids." Noguchi T., Fujioka S., Choe S., Takatsuto S., Yoshida S., Yuan H., Feldmann K.A., Tax F.E. Plant Physiol. 121:743-752(1999) [PubMed: 10557222] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION, MUTANTS BRI1-5/DWF2-W41; BRI1-6/BRI1-119/DWF2-399; BRI1-7/DWF2-WM3-2; BRI1-8/DWF2-WM6-2 AND BRI1-9/DWF2-WMB19. Strain: cv. En-2 and cv. Wassilewskija-2. |
| [3] | "BRASSINOSTEROID-INSENSITIVE-1 is a ubiquitously expressed leucine-rich repeat receptor serine/threonine kinase." Friedrichsen D.M., Joazeiro C.A.P., Li J., Hunter T., Chory J. Plant Physiol. 123:1247-1256(2000) [PubMed: 10938344] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, MUTANTS BRI1-1; BRI1-108; BRI1-117 AND BRI1-102. Strain: cv. Columbia. |
| [4] | "Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana." Mayer K.F.X., Schueller C., Wambutt R., Murphy G., Volckaert G., Pohl T., Duesterhoeft A., Stiekema W., Entian K.-D., Terryn N., Harris B., Ansorge W., Brandt P., Grivell L.A., Rieger M., Weichselgartner M., de Simone V., Obermaier B. McCombie W.R.Nature 402:769-777(1999) [PubMed: 10617198] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: cv. Columbia. |
| [5] | "Recombinant BRASSINOSTEROID INSENSITIVE 1 receptor-like kinase autophosphorylates on serine and threonine residues and phosphorylates a conserved peptide motif in vitro." Oh M.-H., Ray W.K., Huber S.C., Asara J.M., Gage D.A., Clouse S.D. Plant Physiol. 124:751-766(2000) [PubMed: 11027724] [Abstract] Cited for: PHOSPHORYLATION, MUTAGENESIS OF LYS-911. |
| [6] | "Perception of brassinosteroids by the extracellular domain of the receptor kinase BRI1." He Z., Wang Z.-Y., Li J., Zhu Q., Lamb C., Ronald P., Chory J. Science 288:2360-2363(2000) [PubMed: 10875920] [Abstract] Cited for: STEROID-BINDING. |
| [7] | "BRI1 is a critical component of a plasma-membrane receptor for plant steroids." Wang Z.-Y., Seto H., Fujioka S., Yoshida S., Chory J. Nature 410:380-383(2001) [PubMed: 11268216] [Abstract] Cited for: SUBCELLULAR LOCATION, STEROID-BINDING, AUTOPHOSPHORYLATION. |
| [8] | "BRI1/BAK1, a receptor kinase pair mediating brassinosteroid signaling." Nam K.H., Li J. Cell 110:203-212(2002) [PubMed: 12150928] [Abstract] Cited for: SUBCELLULAR LOCATION, PHOSPHORYLATION, INTERACTION WITH BAK1. |
| [9] | "BAK1, an Arabidopsis LRR receptor-like protein kinase, interacts with BRI1 and modulates brassinosteroid signaling." Li J., Wen J., Lease K.A., Doke J.T., Tax F.E., Walker J.C. Cell 110:213-222(2002) [PubMed: 12150929] [Abstract] Cited for: PHOSPHORYLATION, INTERACTION WITH BAK1. |
| [10] | "Heterodimerization and endocytosis of Arabidopsis brassinosteroid receptors BRI1 and AtSERK3 (BAK1)." Russinova E., Borst J.-W., Kwaaitaal M., Cano-Delgado A., Yin Y., Chory J., de Vries S.C. Plant Cell 16:3216-3229(2004) [PubMed: 15548744] [Abstract] Cited for: SUBCELLULAR LOCATION, INTERACTION WITH BAK1. |
| [11] | "The Arabidopsis transthyretin-like protein is a potential substrate of BRASSINOSTEROID-INSENSITIVE 1." Nam K.H., Li J. Plant Cell 16:2406-2417(2004) [PubMed: 15319482] [Abstract] Cited for: INTERACTION WITH TTL. |
| [12] | "Identification and functional analysis of in vivo phosphorylation sites of the Arabidopsis BRASSINOSTEROID-INSENSITIVE1 receptor kinase." Wang X., Goshe M.B., Soderblom E.J., Phinney B.S., Kuchar J.A., Li J., Asami T., Yoshida S., Huber S.C., Clouse S.D. Plant Cell 17:1685-1703(2005) [PubMed: 15894717] [Abstract] Cited for: PHOSPHORYLATION, INTERACTION WITH BAK1, MUTAGENESIS OF SER-838; THR-842; THR-846; SER-858; THR-872; THR-1039; SER-1044; THR-1045; THR-1049; SER-1168; SER-1172; 1179-SER-THR-1180 AND SER-1187. |
Cross-references
Sequence databases | |
|---|---|
| AF017056 Genomic DNA. Translation: AAC49810.1. AL078620 Genomic DNA. Translation: CAB44675.1. AL161595 Genomic DNA. Translation: CAB80603.1. | |
| IPI | IPI00528172. |
| PIR | T09356. |
| RefSeq | NP_195650.1. |
| UniGene | At.27898 At.69020 |
3D structure databases | |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | O22476. 7 interactions. |
Proteomic databases | |
| PRIDE | O22476. |
Genome annotation databases | |
| GeneID | 830095. |
| GenomeReviews | Gene locus AT4G39400 in contig CT486007_GR. |
| KEGG | ath:AT4G39400. |
| NMPDR | fig|3702.1.peg.22077. |
Organism-specific databases | |
| GeneFarm | 612. 54. |
| TAIR | At4g39400. |
Phylogenomic databases | |
| OMA | O22476. DCRSLIW. |
Enzyme and pathway databases | |
| BRENDA | 2.7.11.1. 302. |
Gene expression databases | |
| ArrayExpress | O22476. |
| GermOnline | AT4G39400. Arabidopsis thaliana. |
Family and domain databases | |
| InterPro | IPR001611. Leu-rich_rpt. IPR013210. Leu-rich_rpt_N. IPR000719. Prot_kinase_core. IPR017441. Protein_kinase_ATP_BS. IPR017442. Se/Thr_pkinase-rel. IPR008271. Ser_thr_pkin_AS. [Graphical view] |
| Pfam | PF00560. LRR_1. 12 hits. PF08263. LRRNT_2. 1 hit. PF00069. Pkinase. 1 hit. [Graphical view] |
| ProDom | PD000001. Prot_kinase. 1 hit. [Graphical view] [Entries sharing at least one domain] |
| PROSITE | PS00107. PROTEIN_KINASE_ATP. 1 hit. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00108. PROTEIN_KINASE_ST. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | BRI1_ARATH | ||||||||
| Accession | Primary (citable) accession number: O22476 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | PPAP (Plant Proteome Annotation Project) | ||||||||
Relevant documents
| Arabidopsis thaliana Arabidopsis thaliana: entries and gene names |
| SIMILARITY comments Index of protein domains and families |

Clusters with


