At5g20720.2
From Proteins Wiki
In the plant Arabidopsis thaliana, At5g20720.2 is a gene model for the locus At5g20720.[1]
Also known as CPN10, CHCPN10, ATCPN21, CPN21, and CPN20, this gene model is classified by TAIR as "CPN20 (CHAPERONIN 20); calmodulin binding". It is located on chr5, region 7015017-7016356 FORWARD.
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[edit] Physiological function
At5g20720.2/Function NADK3 (At1g78590) is a NAD(H) kinase with a strong preference for NADH over NAD+. NAD(H) kinases phosphorylate NAD(H) with ATP (other phosphoryl donors are not used preferentially) to form NADP(H). Phosphorylation of NAD(H) is the sole known means of generating NADP(H) de novo.
[edit] Tissue expression
[edit] Subcellular localization
NADK3-GFP has been shown by in vivo transient expression to be localized to the cytosol, confirmed by immunoblotting.
[edit] Biophysical properties
The gene model At5g20720.2 has 253 amino-acid residues and a molecular weight Mw = 26.805 kDa.
The protein is relatively neutral; at the physiological pH 7.4, its net charge is 3.10, or 0.012 per residue. NADK3-GFP has been shown by in vivo transient expression to be localized to the cytosol, confirmed by immunoblotting.
[edit] Knockout phenotype
[edit] Protein interactions
At5g20720.2/Interactions This protein does not interact with calmodulin in the presence or absence of calcium or EGTA. NADK3 has been reported to be phosphorylated in vitro by AtMAPK4. NADK3 forms a homodimer.
[edit] Domain structure
The gene model At5g20720.2 has 2 recognized domains:
- Domain_0061_0152 Cpn10 domain (PF00166, IPR001476) Description: Chaperonin Cpn10;Molecular Function: ATP binding (GO:0005524), Biological Process: protein folding (GO:0006457)
- Domain_0159_0252 Cpn10 domain (PF00166, IPR001476) Description: Chaperonin Cpn10;Molecular Function: ATP binding (GO:0005524), Biological Process: protein folding (GO:0006457)
NADK3 contains the conserved NAD(H) kinase domain, GSTAAMQSAGG for binding NAD and the upstream GGDGT ATP-binding domain.
[edit] Amino-acid sequence
>At5g20720.2
MAATQLTASP
VTMSARSLAS
LDGLRASSVK
FSSLKPGTLR
QSQFRRLVVK
AASVVAPKYT
SIKPLGDRVL
VKIKEAEEKT
LGGILLPSTA
QSKPQGGEVV
AVGEGRTIGK
NKIDITVPTG
AQIIYSKYAG
TEVEFNDVKH
LILKEDDIVG
ILETEDIKDL
KPLNDRVFIK
VAEAEEKTAG
GLLLTETTKE
KPSIGTVIAV
GPGSLDEEGK
ITPLPVSTGS
TVLYSKYAGN
DFKGKDGSNY
IALRASDVMA
ILS
MAIRKLLLLLKPIDPYPFLQTEGASLIKNPQVLQYLESRCKVHKNAIKFCQEILSKKPVE
WKPISRNDLSHPIRDVDMVITVGGDGTLLHASHFIDDSVPVLGVNSDPTQAHEVEELSDQ
FDASRSTGHLCAATVENFEQVLDDILFGRVVPAKVSRISLKLNSETLLSHALNDILIAQP
CPAAVSRFSFKIKNKDGASSPKTVNCRSSGLRICTAAGSTAAMQSAGGFVMPMLSRDLQF
MVREPISPGSTASLMHSTFKPDQFMDVNWYSDHGTIYIDGCQVQHSVQLGDTIEISSDAP
VLNVFLSHGISQIRSRY-
[edit] Multiple sequence alignment
A full-length multiple-sequence alignment (MSA) is available here. This MSA may be visualized by submitting it to a server such as ESPript.
[edit] Protein structure
A predicted structure for this protein is available here.
[edit] References
- ↑ This is a test reference.
