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PDBsum entry 2p1p

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Signaling protein PDB id
2p1p

 

 

 

 

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Contents
Protein chains
91 a.a. *
571 a.a. *
Ligands
IHP
IAC
Waters ×439
* Residue conservation analysis
PDB id:
2p1p
Name: Signaling protein
Title: Mechanism of auxin perception by the tir1 ubiquitin ligase
Structure: Skp1-like protein 1a. Chain: a. Synonym: skp1-like 1, ufo-binding protein 1. Engineered: yes. Transport inhibitor response 1 protein. Chain: b. Synonym: f-box/lrr-repeat protein 1. Engineered: yes
Source: Arabidopsis thaliana. Thale cress. Organism_taxid: 3702. Gene: skp1a, ask1, skp1, uip1. Expressed in: spodoptera frugiperda. Expression_system_taxid: 7108. Gene: tir1, fbl1, wei1.
Resolution:
2.21Å     R-factor:   0.163     R-free:   0.237
Authors: X.Tan,L.I.A.Calderon-Villalobos,M.Sharon,C.V.Robinson,M.Estelle, N.Zheng
Key ref:
X.Tan et al. (2007). Mechanism of auxin perception by the TIR1 ubiquitin ligase. Nature, 446, 640-645. PubMed id: 17410169 DOI: 10.1038/nature05731
Date:
06-Mar-07     Release date:   10-Apr-07    
PROCHECK
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 Headers
 References

Protein chain
Pfam   ArchSchema ?
Q39255  (SKP1A_ARATH) -  SKP1-like protein 1A from Arabidopsis thaliana
Seq:
Struc:
160 a.a.
91 a.a.
Protein chain
Pfam   ArchSchema ?
Q570C0  (TIR1_ARATH) -  Protein TRANSPORT INHIBITOR RESPONSE 1 from Arabidopsis thaliana
Seq:
Struc:
 
Seq:
Struc:
594 a.a.
571 a.a.
Key:    PfamA domain  Secondary structure  CATH domain

 

 
DOI no: 10.1038/nature05731 Nature 446:640-645 (2007)
PubMed id: 17410169  
 
 
Mechanism of auxin perception by the TIR1 ubiquitin ligase.
X.Tan, L.I.Calderon-Villalobos, M.Sharon, C.Zheng, C.V.Robinson, M.Estelle, N.Zheng.
 
  ABSTRACT  
 
Auxin is a pivotal plant hormone that controls many aspects of plant growth and development. Perceived by a small family of F-box proteins including transport inhibitor response 1 (TIR1), auxin regulates gene expression by promoting SCF ubiquitin-ligase-catalysed degradation of the Aux/IAA transcription repressors, but how the TIR1 F-box protein senses and becomes activated by auxin remains unclear. Here we present the crystal structures of the Arabidopsis TIR1-ASK1 complex, free and in complexes with three different auxin compounds and an Aux/IAA substrate peptide. These structures show that the leucine-rich repeat domain of TIR1 contains an unexpected inositol hexakisphosphate co-factor and recognizes auxin and the Aux/IAA polypeptide substrate through a single surface pocket. Anchored to the base of the TIR1 pocket, auxin binds to a partially promiscuous site, which can also accommodate various auxin analogues. Docked on top of auxin, the Aux/IAA substrate peptide occupies the rest of the TIR1 pocket and completely encloses the hormone-binding site. By filling in a hydrophobic cavity at the protein interface, auxin enhances the TIR1-substrate interactions by acting as a 'molecular glue'. Our results establish the first structural model of a plant hormone receptor.
 
  Selected figure(s)  
 
Figure 1.
Figure 1: Crystal structure of the TIR1–ASK1 complex with auxin and the IAA7 degron peptide. a, b, Two views of the complex structure are shown as a ribbon diagram. TIR1, ASK1 and the IAA7 substrate peptide are coloured grey, blue and orange, respectively. The F-box and LRR domains of TIR1 are labelled. Auxin is represented by a space-filling model (CPK). The InsP[6] molecule is shown as a stick model.
Figure 6.
Figure 6: A model of auxin-regulated TIR1–substrate interactions. A schematic diagram of auxin functioning as a 'molecular glue' to enhance TIR1–substrate interactions. In contrast to an allosteric mechanism, auxin binds to the same TIR1 pocket that docks the Aux/IAA substrate. Without inducing significant conformational changes in its receptor, auxin increases the affinity of two proteins by simultaneously interacting with both in a cavity at the protein interface.
 
  The above figures are reprinted by permission from Macmillan Publishers Ltd: Nature (2007, 446, 640-645) copyright 2007.  
  Figures were selected by an automated process.  

Literature references that cite this PDB file's key reference

  PubMed id Reference
22246322 G.Brunoud, D.M.Wells, M.Oliva, A.Larrieu, V.Mirabet, A.H.Burrow, T.Beeckman, S.Kepinski, J.Traas, M.J.Bennett, and T.Vernoux (2012).
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Defining an allosteric circuit in the cysteine protease domain of Clostridium difficile toxins.
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PDB code: 3pee
21052782 C.Nibau, D.J.Gibbs, K.A.Bunting, L.A.Moody, E.J.Smiles, J.A.Tubby, S.J.Bradshaw, and J.C.Coates (2011).
ARABIDILLO proteins have a novel and conserved domain structure important for the regulation of their stability.
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Hormone signalling crosstalk in plant growth regulation.
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21118264 S.Meldau, I.T.Baldwin, and J.Wu (2011).
SGT1 regulates wounding- and herbivory-induced jasmonic acid accumulation and Nicotiana attenuata's resistance to the specialist lepidopteran herbivore Manduca sexta.
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The Molecular Mechanism and Evolution of the GA-GID1-DELLA Signaling Module in Plants.
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The auxin signalling network translates dynamic input into robust patterning at the shoot apex.
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Characterization of JAZ-interacting bHLH transcription factors that regulate jasmonate responses in Arabidopsis.
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21370976 Z.Hua, and R.D.Vierstra (2011).
The cullin-RING ubiquitin-protein ligases.
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20409276 A.Santner, and M.Estelle (2010).
The ubiquitin-proteasome system regulates plant hormone signaling.
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The role of Phe82 and Phe351 in auxin-induced substrate perception by TIR1 ubiquitin ligase: a novel insight from molecular dynamics simulations.
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Jasmonate perception by inositol-phosphate-potentiated COI1-JAZ co-receptor.
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PDB codes: 3ogk 3ogl 3ogm
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21115822 R.Carranco, J.M.Espinosa, P.Prieto-Dapena, C.Almoguera, and J.Jordano (2010).
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Plant nuclear hormone receptors: a role for small molecules in protein-protein interactions.
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21143673 S.P.Pandey, M.Roccaro, M.Schön, E.Logemann, and I.E.Somssich (2010).
Transcriptional reprogramming regulated by WRKY18 and WRKY40 facilitates powdery mildew infection of Arabidopsis.
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20980270 T.Umezawa, K.Nakashima, T.Miyakawa, T.Kuromori, M.Tanokura, K.Shinozaki, and K.Yamaguchi-Shinozaki (2010).
Molecular basis of the core regulatory network in aba responses: sensing, signaling and transport.
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Auxin at the shoot apical meristem.
  Cold Spring Harb Perspect Biol, 2, a001487.  
20192752 T.W.Kim, and Z.Y.Wang (2010).
Brassinosteroid signal transduction from receptor kinases to transcription factors.
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19663905 A.Chini, M.Boter, and R.Solano (2009).
Plant oxylipins: COI1/JAZs/MYC2 as the core jasmonic acid-signalling module.
  FEBS J, 276, 4682-4692.  
19695945 A.S.Lokerse, and D.Weijers (2009).
Auxin enters the matrix--assembly of response machineries for specific outputs.
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19553990 A.Santner, and M.Estelle (2009).
Recent advances and emerging trends in plant hormone signalling.
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19777056 A.Tromas, N.Braun, P.Muller, T.Khodus, I.A.Paponov, K.Palme, K.Ljung, J.Y.Lee, P.Benfey, J.A.Murray, B.Scheres, and C.Perrot-Rechenmann (2009).
The AUXIN BINDING PROTEIN 1 is required for differential auxin responses mediating root growth.
  PLoS One, 4, e6648.  
  20066117 B.Möller, and D.Weijers (2009).
Auxin control of embryo patterning.
  Cold Spring Harbor Perspect Biol, 1, a001545.  
19619340 B.Molesini, G.L.Rotino, A.Spena, and T.Pandolfini (2009).
Expression profile analysis of early fruit development in iaaM-parthenocarpic tomato plants.
  BMC Res Notes, 2, 143.  
19479259 B.Singh, H.D.Cheek, and C.H.Haigler (2009).
A synthetic auxin (NAA) suppresses secondary wall cellulose synthesis and enhances elongation in cultured cotton fiber.
  Plant Cell Rep, 28, 1023-1032.  
18797999 B.Veit (2009).
Hormone mediated regulation of the shoot apical meristem.
  Plant Mol Biol, 69, 397-408.  
19392692 C.L.Thomas, D.Schmidt, E.M.Bayer, R.Dreos, and A.J.Maule (2009).
Arabidopsis plant homeodomain finger proteins operate downstream of auxin accumulation in specifying the vasculature and primary root meristem.
  Plant J, 59, 426-436.  
19654206 D.J.Lee, J.W.Park, H.W.Lee, and J.Kim (2009).
Genome-wide analysis of the auxin-responsive transcriptome downstream of iaa1 and its expression analysis reveal the diversity and complexity of auxin-regulated gene expression.
  J Exp Bot, 60, 3935-3957.  
19618939 D.R.Davies, B.Mamat, O.T.Magnusson, J.Christensen, M.H.Haraldsson, R.Mishra, B.Pease, E.Hansen, J.Singh, D.Zembower, H.Kim, A.S.Kiselyov, A.B.Burgin, M.E.Gurney, and L.J.Stewart (2009).
Discovery of leukotriene A4 hydrolase inhibitors using metabolomics biased fragment crystallography.
  J Med Chem, 52, 4694-4715.
PDB codes: 3fts 3ftu 3ftv 3ftw 3ftx 3fty 3fu0 3fu3 3fu5 3fu6 3fud 3fue 3fuf 3fuh 3fui 3fuj 3fuk 3fum 3fun
19686081 E.J.Chapman, and M.Estelle (2009).
Mechanism of auxin-regulated gene expression in plants.
  Annu Rev Genet, 43, 265-285.  
19473324 F.Carland, and T.Nelson (2009).
CVP2- and CVL1-mediated phosphoinositide signaling as a regulator of the ARF GAP SFC/VAN3 in establishment of foliar vein patterns.
  Plant J, 59, 895-907.  
19309453 F.d.o.s. .S.Maraschin, J.Memelink, and R.Offringa (2009).
Auxin-induced, SCF(TIR1)-mediated poly-ubiquitination marks AUX/IAA proteins for degradation.
  Plant J, 59, 100-109.  
20018756 G.Parry, L.I.Calderon-Villalobos, M.Prigge, B.Peret, S.Dharmasiri, H.Itoh, E.Lechner, W.M.Gray, M.Bennett, and M.Estelle (2009).
Complex regulation of the TIR1/AFB family of auxin receptors.
  Proc Natl Acad Sci U S A, 106, 22540-22545.  
19309458 H.Yang, and A.S.Murphy (2009).
Functional expression and characterization of Arabidopsis ABCB, AUX 1 and PIN auxin transporters in Schizosaccharomyces pombe.
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19493348 I.A.Paponov, W.Teale, D.Lang, M.Paponov, R.Reski, S.A.Rensing, and K.Palme (2009).
The evolution of nuclear auxin signalling.
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19025383 J.Browse (2009).
Jasmonate passes muster: a receptor and targets for the defense hormone.
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19114460 J.Gilkerson, J.Hu, J.Brown, A.Jones, T.P.Sun, and J.Callis (2009).
Isolation and characterization of cul1-7, a recessive allele of CULLIN1 that disrupts SCF function at the C terminus of CUL1 in Arabidopsis thaliana.
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19357428 J.J.Holland, D.Roberts, and E.Liscum (2009).
Understanding phototropism: from Darwin to today.
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The mechanism of ubiquitination in the cullin-RING E3 ligase machinery: conformational control of substrate orientation.
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19559643 K.Kazan, and J.M.Manners (2009).
Linking development to defense: auxin in plant-pathogen interactions.
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19452560 K.L.Hindle, J.Bella, and S.C.Lovell (2009).
Quantitative analysis and prediction of curvature in leucine-rich repeat proteins.
  Proteins, 77, 342-358.  
19915560 K.Nishimura, T.Fukagawa, H.Takisawa, T.Kakimoto, and M.Kanemaki (2009).
An auxin-based degron system for the rapid depletion of proteins in nonplant cells.
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Cytokinin-auxin crosstalk.
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Structural Mechanism of Abscisic Acid Binding and Signaling by Dimeric PYR1.
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PDB code: 3k3k
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The ubiquitin-26S proteasome system at the nexus of plant biology.
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19489725 R.J.Deshaies, and C.A.Joazeiro (2009).
RING domain E3 ubiquitin ligases.
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Plant hormone receptors: new perceptions.
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Inositol polyphosphates: a new frontier for regulating gene expression.
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Metabolic and signaling properties of an Itpk gene family in Glycine max.
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Overexpression of the non-canonical Aux/IAA genes causes auxin-related aberrant phenotypes in Arabidopsis.
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What's the physiological role of domain II-less Aux/IAA proteins?
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The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses.
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Origin and evolution of GALA-LRR, a new member of the CC-LRR subfamily: from plants to bacteria?
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Auxin dynamics: the dazzling complexity of a small molecule's message.
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Plant immunity to insect herbivores.
  Annu Rev Plant Biol, 59, 41-66.  
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LRRCE: a leucine-rich repeat cysteine capping motif unique to the chordate lineage.
  BMC Genomics, 9, 599.  
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Towards understanding the function of stress-inducible PtdIns(4,5)P(2) in plants.
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18776215 J.C.Cheung, B.Salerno, and L.A.Hanakahi (2008).
Evidence for an inositol hexakisphosphate-dependent role for Ku in mammalian nonhomologous end joining that is independent of its role in the DNA-dependent protein kinase.
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18084274 J.D.York, and D.J.Lew (2008).
IP7 guards the CDK gate.
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18653378 J.M.Chico, A.Chini, S.Fonseca, and R.Solano (2008).
JAZ repressors set the rhythm in jasmonate signaling.
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18088308 J.Salmon, J.Ramos, and J.Callis (2008).
Degradation of the auxin response factor ARF1.
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Staying in the fold: The SGT1/chaperone machinery in maintenance and evolution of leucine-rich repeat proteins.
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18785832 J.Vadassery, C.Ritter, Y.Venus, I.Camehl, A.Varma, B.Shahollari, O.Novák, M.Strnad, J.Ludwig-Müller, and R.Oelmüller (2008).
The role of auxins and cytokinins in the mutualistic interaction between Arabidopsis and Piriformospora indica.
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18612170 J.W.Chandler (2008).
Cotyledon organogenesis.
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18391211 K.Hayashi, X.Tan, N.Zheng, T.Hatate, Y.Kimura, S.Kepinski, and H.Nozaki (2008).
Small-molecule agonists and antagonists of F-box protein-substrate interactions in auxin perception and signaling.
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PDB codes: 3c6n 3c6o 3c6p
18337155 K.Hirano, M.Ueguchi-Tanaka, and M.Matsuoka (2008).
GID1-mediated gibberellin signaling in plants.
  Trends Plant Sci, 13, 192-199.  
18532977 K.Matsui, Y.Umemura, and M.Ohme-Takagi (2008).
AtMYBL2, a protein with a single MYB domain, acts as a negative regulator of anthocyanin biosynthesis in Arabidopsis.
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18631113 K.Mockaitis, and M.Estelle (2008).
Auxin receptors and plant development: a new signaling paradigm.
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Gibberellin-induced DELLA recognition by the gibberellin receptor GID1.
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PDB codes: 2zsh 2zsi
18591243 K.Prochazkova, and K.J.Satchell (2008).
Structure-Function Analysis of Inositol Hexakisphosphate-induced Autoprocessing of the Vibrio cholerae Multifunctional Autoprocessing RTX Toxin.
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SPOROCYTELESS modulates YUCCA expression to regulate the development of lateral organs in Arabidopsis.
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18458331 L.Katsir, A.L.Schilmiller, P.E.Staswick, S.Y.He, and G.A.Howe (2008).
COI1 is a critical component of a receptor for jasmonate and the bacterial virulence factor coronatine.
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Jasmonate signaling: a conserved mechanism of hormone sensing.
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Identification of auxins by a chemical genomics approach.
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Role of stomata in plant innate immunity and foliar bacterial diseases.
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Localization of myo-inositol-1-phosphate synthase to the endosperm in developing seeds of Arabidopsis.
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JAZing up jasmonate signaling.
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Plant biology: Gibberellins close the lid.
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Inositol derivatives: evolution and functions.
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SKP2A, an F-box protein that regulates cell division, is degraded via the ubiquitin pathway.
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SKP2A protein, an F-box that regulates cell division, is degraded via the ubiquitin pathway.
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Diversity of degradation signals in the ubiquitin-proteasome system.
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Domain II mutations in CRANE/IAA18 suppress lateral root formation and affect shoot development in Arabidopsis thaliana.
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Evolutionarily conserved DELLA-mediated gibberellin signaling in plants.
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Phytohormone collaboration: zooming in on auxin-brassinosteroid interactions.
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Auxin herbicide action: lifting the veil step by step.
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The circadian clock regulates auxin signaling and responses in Arabidopsis.
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Protein-protein interactions regulate Ubl conjugation.
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Plant biology: sticking with auxin.
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NPY1, a BTB-NPH3-like protein, plays a critical role in auxin-regulated organogenesis in Arabidopsis.
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The most recent references are shown first. Citation data come partly from CiteXplore and partly from an automated harvesting procedure. Note that this is likely to be only a partial list as not all journals are covered by either method. However, we are continually building up the citation data so more and more references will be included with time. Where a reference describes a PDB structure, the PDB code is shown on the right.

 

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