At1g09795.1

In the plant Arabidopsis thaliana, At1g09795.1 is a gene model for the locus At1g09795.^[1]

Also known as HISN1B, and ATATP-PRT2, this gene model is classified by TAIR as "ATATP-PRT2 (ATP PHOSPHORIBOSYL TRANSFERASE 2); ATP phosphoribosyltransferase". It is located on chr1, region 3173590-3176692 FORWARD.

Physiological function[]

At1g09795.1/Function_____________The entry below does not belong to this gene_________________ ___________________________ ____________________ ___________ __________ __________________ __________________ _________________ _________________ ______________ ________________ (At1g78590) 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.

Tissue expression[]

At1g09795.1/Expression

Subcellular localization[]

At1g09795.1/Localization_____________The entry below does not belong to this gene_________________ ___________________________ ____________________ ___________ __________ __________________ __________________ _________________ _________________

NADK3-GFP has been shown by in vivo transient expression to be localized to the cytosol, confirmed by immunoblotting.

Biophysical properties[]

The gene model At1g09795.1 has 413 amino-acid residues and a molecular weight Mw = 44.754 kDa.

The protein is relatively neutral; at the physiological pH 7.4, its net charge is -2.00, or -0.005 per residue._____________The entry below does not belong to this gene_________________ ___________________________ ____________________ ___________ __________ __________________ __________________ _________________ _________________ NADK3-GFP has been shown by in vivo transient expression to be localized to the cytosol, confirmed by immunoblotting.

Knockout phenotype[]

At1g09795.1/Knockout

Protein interactions[]

At1g09795.1/Interactions_____________The entry below does not belong to this gene_________________ ___________________________ ____________________ ___________ __________ __________________ __________________ _________________ _________________ 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.

Domain structure[]

The gene model At1g09795.1 has 2 recognized domains:

Domain_0128_0308 HisG domain (PF01634, IPR001348) Description: Histidine biosynthesis HisG: ATP phosphoribosyltransferase;Biological Process: histidine biosynthesis (GO:0000105), Molecular Function: ATP phosphoribosyltransferase activity (GO:0003879)

Domain_0309_0396 HisG_C domain (PF08029, IPR013115) Description: Histidine biosynthesis HisG, C-terminal_____________The entry below does not belong to this gene_________________ ___________________________ ____________________ ___________ __________ __________________ __________________ _________________ _________________

NADK3 contains the conserved NAD(H) kinase domain, GSTAAMQSAGG for binding NAD and the upstream GGDGT ATP-binding domain.

Amino-acid sequence[]

>At1g09795.1 MPISIPLNAT LQYSSPSSSS SSSSLVPSSP LFSPIPSTTV SLTGIRQRCL RMVTSCVSNA QKSVLNGATD SVSVVGREQI RLGLPSKGRM AADSLDLLKD CQLFVKQVNP RQYVAQIPQL PNTEVWFQRP KDIVRKLLSG DLDLGIVGLD IVGEFGQGNE DLIIVHEALN FGDCHLSLAI PNYGIFENIK SLKELAQMPQ WTEERPLRVA TGFTYLGPKF MKDNGIKHVT FSTADGALEA APAMGIADAI LDLVSSGTTL KENNLKEIEG GVVLESQAAL VASRRALTER KGALETVHEI LERLEAHLKA NGQFTVVANM RGTDAEEVAE RVKTQPSLSG LQGPTISPVY CKRDGKVTIE YYAIVICVPK KALYESVQQL RAVGGSGVLV SPVTYIFHEE TPRWSQLLSN LGL ________________Given the above incorrect annotations, this may, or may not, be the correct sequence for At1g57680.1 _________________ ___________________________ ____________________ ___________ __________ __________________ __________________ _________________ _________________ MAIRKLLLLLKPIDPYPFLQTEGASLIKNPQVLQYLESRCKVHKNAIKFCQEILSKKPVE WKPISRNDLSHPIRDVDMVITVGGDGTLLHASHFIDDSVPVLGVNSDPTQAHEVEELSDQ FDASRSTGHLCAATVENFEQVLDDILFGRVVPAKVSRISLKLNSETLLSHALNDILIAQP CPAAVSRFSFKIKNKDGASSPKTVNCRSSGLRICTAAGSTAAMQSAGGFVMPMLSRDLQF MVREPISPGSTASLMHSTFKPDQFMDVNWYSDHGTIYIDGCQVQHSVQLGDTIEISSDAP VLNVFLSHGISQIRSRY-