DP00185: Late embryogenesis-abundant proteinFASTA viewXML view

General information
DisProt:DP00185
Name:Late embryogenesis-abundant protein
Synonym(s):P93165_SOYBN
Em protein
First appeared in release:Release 3.0 (02/17/2006)
UniProt:P93165
UniGene:Gma.10
SwissProt: P93165_SOYBN
TrEMBL:  
NCBI (GI): 75101067
Source organism:Glycine max (soybean)
Sequence length:105
Percent disordered:100%
Homologues: 


Native sequence

        10         20         30         40         50         60
         |          |          |          |          |          |
MASRQNNKQE LDERARQGET VVPGGTGGKS LEAQQHLAEG RSKGGQTRKE QLGTEGYQEM - 60
GRKGGLSTVD KSGEERAQEE GIGIDESKFR TGNNKNQNQN EDQDK



Functional narrative    

"Late embryogenesis-abundant (LEA) proteins accumulate to high concentrations in plant embryos during the latter stages of seed development before desiccation. LEA proteins also accumulate in vegetative tissues exposed to exogenous abscisic acid, as well as dehydration, osmotic, and lowtemperature stress.... Various functions have been proposed for different groups of LEA proteins ranging from water binding to minimize water loss and protein and membrane stabilization or protection to ion sequestration and scavenging. LEA proteins also display diverse subcellular and tissue-specific localization patterns, suggesting that different groups or group members fulfill specific functional roles.... However, the exact in planta function of these different groups of LEA proteins remain unknown.... The predicted hydrophilic and high degree of random coil structure of group 1 LEA proteins have led some researchers to propose these proteins may serve as water-binding proteins that can minimize water loss, act as hydration buffers to regulate water status, or interact with the surface of macromolecules as a water matrix or replacement to oppose protein denaturation in dehydrating tissues." (Soulages et al. 2002)

Region 1: 1-105

Map of ordered and disordered regions







Note: 'Mouse' over a region to see the start and stop residues. Click on a region to see detailed information.


Region 1
Type:Disordered - Extended
Name: 
Location:1 - 105
Length:105
Region sequence:

MASRQNNKQELDERARQGETVVPGGTGGKSLEAQQHLAEGRSKGGQTRKEQLGTEGYQEM
GRKGGLSTVDKSGEERAQEEGIGIDESKFRTGNNKNQNQNEDQDK

Modification type: Native
PDB:  
Structural/functional type: Function arises from the disordered state
Functional classes: Unknown
Functional subclasses: Unknown
Detection methods:
  1. Circular dichroism (CD) spectroscopy, far-UV (0.1-cm path-length; 7.7 microM protein solution in 50 mM buffer Na-phosphate; pH 5, 8, and 9; temperature from 10°C to 80°C)

References:
  1. Soulages JL, Kim K, Walters C, Cushman JC. "Temperature-induced extended helix/random coil transitions in a group 1 late embryogenesis-abundant protein from soybean." Plant Physiol. 2002; 128(3): 822-32. PubMed: 11891239

Comments:
 



References

  1. Wise MJ, Tunnacliffe A. "POPP the question: what do LEA proteins do?" Trends Plant Sci. 2004; 9(1): 13-7. PubMed: 14729214


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