2RU1 | pdb_00002ru1

Solution structure of esf3

• PDB DOI: https://doi.org/10.2210/pdb2RU1/pdb
• BMRB: 11540

• Classification: HORMONE
• Organism(s): Arabidopsis thaliana
• Expression System: Tomato mosaic virus
• Mutation(s): No 


• Deposited: 2013-11-06 Released: 2014-04-23 
• Deposition Author(s): Umetsu, Y., Mori, M., Ohki, S.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

Central cell-derived peptides regulate early embryo patterning in flowering plants

Costa, L.M., Marshall, E., Tesfaye, M., Silverstein, K.A., Mori, M., Umetsu, Y., Otterbach, S.L., Papareddy, R., Dickinson, H.G., Boutiller, K., Vandenbosch, K.A., Ohki, S., Gutierrez-marcos, J.F.

(2014) Science 344: 168-172

• PubMed: 24723605 
• DOI: https://doi.org/10.1126/science.1243005
• Primary Citation Related Structures: 
  2RU1


• PubMed Abstract: 
  

  Plant embryogenesis initiates with the establishment of an apical-basal axis; however, the molecular mechanisms accompanying this early event remain unclear. Here, we show that a small cysteine-rich peptide family is required for formation of the zygotic basal cell lineage and proembryo patterning in Arabidopsis. EMBRYO SURROUNDING FACTOR 1 (ESF1) peptides accumulate before fertilization in central cell gametes and thereafter in embryo-surrounding endosperm cells. Biochemical and structural analyses revealed cleavage of ESF1 propeptides to form biologically active mature peptides. Further, these peptides act in a non-cell-autonomous manner and synergistically with the receptor-like kinase SHORT SUSPENSOR to promote suspensor elongation through the YODA mitogen-activated protein kinase pathway. Our findings demonstrate that the second female gamete and its sexually derived endosperm regulate early embryonic patterning in flowering plants.

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Organizational Affiliation: 
• Department of Plant Sciences, University of Oxford, South Parks Road, OX1 3RB, UK.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 7.98 kDa 
• Atom Count: 550 
• Modeled Residue Count: 70 
• Deposited Residue Count: 70 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Uncharacterized protein	A	70	Arabidopsis thaliana	Mutation(s): 0  Gene Names: AT1G10717, At1g10717
UniProt
Find proteins for A8MQA5 (Arabidopsis thaliana) Explore A8MQA5  Go to UniProtKB:  A8MQA5

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-04-23 
Deposition Author(s): Umetsu, Y., Mori, M., Ohki, S.

Revision History  

• Version 1.0: 2014-04-23
  Type: Initial release
  
• Version 1.1: 2023-06-14
  Changes: Data collection, Database references, Other
• Version 1.2: 2024-10-16
  Changes: Data collection, Database references, Structure summary