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CHY2 CHY2 At4g25700 At4g25700 LTO1 LTO1 CYP97A3 CYP97A3 LUT2 LUT2 ABA1 ABA1 NPQ1 NPQ1 CP29 CP29 NPQ4 NPQ4 LHCB5 LHCB5 AT2G31040 AT2G31040
"NPQ1" - Violaxanthin de-epoxidase in Arabidopsis thaliana
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NPQ1Violaxanthin de-epoxidase; Part of the xanthophyll (or violaxanthin) cycle for controlling the concentration of zeaxanthin in chloroplasts. Catalyzes the two-step mono de-epoxidation reaction. Stereospecific for all-trans xanthophylls. Zeaxanthin induces the dissipation of excitation energy in the chlorophyll of the light- harvesting protein complex of photosystem II (462 aa)    
Predicted Functional Partners:
ABA1
ABA DEFICIENT 1; Zeaxanthin epoxidase that plays an important role in the xanthophyll cycle and abscisic acid (ABA) biosynthesis. Converts zeaxanthin into antheraxanthin and subsequently violaxanthin. Required for resistance to osmotic and drought stresses, ABA- dependent stomatal closure, seed development and dormancy, modulation of defense gene expression and disease resistance and non-photochemical quencing (NPQ). Through its role in ABA biosynthesis, regulates the expression of stress-responsive genes such as RD29A during osmotic stress and is required for normal plant growth durin [...] (667 aa)
         
  0.986
CYP97A3
Cytochrome P450, family 97, subfamily A, polypeptide 3; Heme-containing cytochrome P450 involved in the biosynthesis of xanthophylls. Specific for beta-ring hydroxylation of alpha- and beta-carotene. Has also a low activity toward the epsilon-rings of alpha-carotene. The beta-ring of alpha-carotene is the preferred substrate in planta (595 aa)
     
 
  0.973
NPQ4
NONPHOTOCHEMICAL QUENCHING 4; Seems to be involved in non-photochemical quenching, a process maintains the balance between dissipation and utilization of light energy to minimize generation of oxidizing molecules, thereby protecting the plant against photo-oxidative damage (265 aa)
     
   
  0.963
CHY2
Beta-carotene hydroxylase 2; Nonheme diiron monooxygenase involved in the biosynthesis of xanthophylls. Specific for beta-ring hydroxylations of beta-carotene. Has also a low activity toward the beta- and epsilon-rings of alpha-carotene. No activity with acyclic carotenoids such as lycopene and neurosporene. Uses ferredoxin as an electron donor (Probable) (303 aa)
         
  0.947
LUT2
LUTEIN DEFICIENT 2; Catalyzes the single epsilon-cyclization reaction which converts lycopene to delta-carotene and neurosporene to alpha- zeacarotene. Required for lutein biosynthesis (524 aa)
     
   
  0.937
At4g25700
Beta-hydroxylase 1; Nonheme diiron monooxygenase involved in the biosynthesis of xanthophylls. Specific for beta-ring hydroxylations of beta-carotene. Has also a low activity toward the beta- and epsilon-rings of alpha-carotene. No activity with acyclic carotenoids such as lycopene and neurosporene. Uses ferredoxin as an electron donor (Probable) (310 aa)
         
  0.930
CP29
Chloroplast RNA-binding protein 29 (363 aa)
     
   
  0.890
LHCB5
Chlorophyll a-b binding protein CP26; The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated (280 aa)
     
   
  0.817
LTO1
Lumen Thiol Oxidoreductase 1; Thiol-disulfide oxidoreductase catalyzing disulfide bond formation of chloroplast proteins and involved in redox regulation and photosynthetic electron transport. Required for the assembly of photosystem II (PSII) through the formation of disulfide bond in PSBO, a subunit of the PSII oxygen-evolving complex in the thylakoid lumen. Involved in the formation of disulfide bonds in the lumenal protein FKBP13. In vitro, reduces phylloquinone (vitamin K1) and menaquinone (vitamin K2) to their respective quinol. Cannot reduce phylloquinone epoxide to phylloquinon [...] (376 aa)
     
 
  0.748
AT2G31040
ATP synthase protein I (350 aa)
     
   
  0.733
Your Current Organism:
Arabidopsis thaliana
NCBI taxonomy Id: 3702
Other names: A. thaliana, Arabidopsis thaliana, Arabidopsis thaliana (L.) Heynh., mouse-ear cress, thale cress, thale-cress
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