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{{STRUCTURE_1kr2|  PDB=1kr2  |  SCENE=  }}
===CRYSTAL STRUCTURE OF HUMAN NMN/NAMN ADENYLYL TRANSFERASE COMPLEXED WITH TIAZOFURIN ADENINE DINUCLEOTIDE (TAD)===
{{ABSTRACT_PUBMED_11788603}}


==Disease==
==CRYSTAL STRUCTURE OF HUMAN NMN/NAMN ADENYLYL TRANSFERASE COMPLEXED WITH TIAZOFURIN ADENINE DINUCLEOTIDE (TAD)==
[[http://www.uniprot.org/uniprot/NMNA1_HUMAN NMNA1_HUMAN]] Defects in NMNAT1 are the cause of Leber congenital amaurosis 9 (LCA9) [MIM:[http://omim.org/entry/608553 608553]]. A severe dystrophy of the retina, typically becoming evident in the first years of life. Visual function is usually poor and often accompanied by nystagmus, sluggish or near-absent pupillary responses, photophobia, high hyperopia and keratoconus.<ref>PMID:22842230</ref><ref>PMID:22842231</ref><ref>PMID:22842229</ref><ref>PMID:22842227</ref>  
<StructureSection load='1kr2' size='340' side='right'caption='[[1kr2]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
 
== Structural highlights ==
==Function==
<table><tr><td colspan='2'>[[1kr2]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KR2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KR2 FirstGlance]. <br>
[[http://www.uniprot.org/uniprot/NMNA1_HUMAN NMNA1_HUMAN]] Catalyzes the formation of NAD(+) from nicotinamide mononucleotide (NMN) and ATP. Can also use the deamidated form; nicotinic acid mononucleotide (NaMN) as substrate with the same efficiency. Can use triazofurin monophosphate (TrMP) as substrate. Also catalyzes the reverse reaction, i.e. the pyrophosphorolytic cleavage of NAD(+). For the pyrophosphorolytic activity, prefers NAD(+) and NAAD as substrates and degrades NADH, nicotinic acid adenine dinucleotide phosphate (NHD) and nicotinamide guanine dinucleotide (NGD) less effectively. Fails to cleave phosphorylated dinucleotides NADP(+), NADPH and NAADP(+). Protects against axonal degeneration following mechanical or toxic insults.<ref>PMID:17402747</ref>  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
 
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=TAD:BETA-METHYLENE-THIAZOLE-4-CARBOXYAMIDE-ADENINE+DINUCLEOTIDE'>TAD</scene></td></tr>
==About this Structure==
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1kr2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kr2 OCA], [https://pdbe.org/1kr2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kr2 RCSB], [https://www.ebi.ac.uk/pdbsum/1kr2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kr2 ProSAT]</span></td></tr>
[[1kr2]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KR2 OCA].  
</table>
 
== Disease ==
==Reference==
[https://www.uniprot.org/uniprot/NMNA1_HUMAN NMNA1_HUMAN] Defects in NMNAT1 are the cause of Leber congenital amaurosis 9 (LCA9) [MIM:[https://omim.org/entry/608553 608553]. A severe dystrophy of the retina, typically becoming evident in the first years of life. Visual function is usually poor and often accompanied by nystagmus, sluggish or near-absent pupillary responses, photophobia, high hyperopia and keratoconus.<ref>PMID:22842230</ref> <ref>PMID:22842231</ref> <ref>PMID:22842229</ref> <ref>PMID:22842227</ref>  
<ref group="xtra">PMID:011788603</ref><ref group="xtra">PMID:011959140</ref><references group="xtra"/><references/>
== Function ==
[https://www.uniprot.org/uniprot/NMNA1_HUMAN NMNA1_HUMAN] Catalyzes the formation of NAD(+) from nicotinamide mononucleotide (NMN) and ATP. Can also use the deamidated form; nicotinic acid mononucleotide (NaMN) as substrate with the same efficiency. Can use triazofurin monophosphate (TrMP) as substrate. Also catalyzes the reverse reaction, i.e. the pyrophosphorolytic cleavage of NAD(+). For the pyrophosphorolytic activity, prefers NAD(+) and NAAD as substrates and degrades NADH, nicotinic acid adenine dinucleotide phosphate (NHD) and nicotinamide guanine dinucleotide (NGD) less effectively. Fails to cleave phosphorylated dinucleotides NADP(+), NADPH and NAADP(+). Protects against axonal degeneration following mechanical or toxic insults.<ref>PMID:17402747</ref>  
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kr/1kr2_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1kr2 ConSurf].
<div style="clear:both"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Nicotinamide-nucleotide adenylyltransferase]]
[[Category: Large Structures]]
[[Category: Binns, D D.]]
[[Category: Binns DD]]
[[Category: Grishin, N V.]]
[[Category: Grishin NV]]
[[Category: Kurnasov, O.]]
[[Category: Kurnasov O]]
[[Category: Marquez, V E.]]
[[Category: Marquez VE]]
[[Category: Osterman, A L.]]
[[Category: Osterman AL]]
[[Category: Tomchick, D R.]]
[[Category: Tomchick DR]]
[[Category: Zhang, H.]]
[[Category: Zhang H]]
[[Category: Zhou, T.]]
[[Category: Zhou T]]
[[Category: Nucleotidyltransferase superfamily]]
[[Category: Transferase]]

Latest revision as of 10:27, 14 February 2024

CRYSTAL STRUCTURE OF HUMAN NMN/NAMN ADENYLYL TRANSFERASE COMPLEXED WITH TIAZOFURIN ADENINE DINUCLEOTIDE (TAD)CRYSTAL STRUCTURE OF HUMAN NMN/NAMN ADENYLYL TRANSFERASE COMPLEXED WITH TIAZOFURIN ADENINE DINUCLEOTIDE (TAD)

Structural highlights

1kr2 is a 6 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.3Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

NMNA1_HUMAN Defects in NMNAT1 are the cause of Leber congenital amaurosis 9 (LCA9) [MIM:608553. A severe dystrophy of the retina, typically becoming evident in the first years of life. Visual function is usually poor and often accompanied by nystagmus, sluggish or near-absent pupillary responses, photophobia, high hyperopia and keratoconus.[1] [2] [3] [4]

Function

NMNA1_HUMAN Catalyzes the formation of NAD(+) from nicotinamide mononucleotide (NMN) and ATP. Can also use the deamidated form; nicotinic acid mononucleotide (NaMN) as substrate with the same efficiency. Can use triazofurin monophosphate (TrMP) as substrate. Also catalyzes the reverse reaction, i.e. the pyrophosphorolytic cleavage of NAD(+). For the pyrophosphorolytic activity, prefers NAD(+) and NAAD as substrates and degrades NADH, nicotinic acid adenine dinucleotide phosphate (NHD) and nicotinamide guanine dinucleotide (NGD) less effectively. Fails to cleave phosphorylated dinucleotides NADP(+), NADPH and NAADP(+). Protects against axonal degeneration following mechanical or toxic insults.[5]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

References

  1. ↑ Koenekoop RK, Wang H, Majewski J, Wang X, Lopez I, Ren H, Chen Y, Li Y, Fishman GA, Genead M, Schwartzentruber J, Solanki N, Traboulsi EI, Cheng J, Logan CV, McKibbin M, Hayward BE, Parry DA, Johnson CA, Nageeb M, Poulter JA, Mohamed MD, Jafri H, Rashid Y, Taylor GR, Keser V, Mardon G, Xu H, Inglehearn CF, Fu Q, Toomes C, Chen R. Mutations in NMNAT1 cause Leber congenital amaurosis and identify a new disease pathway for retinal degeneration. Nat Genet. 2012 Sep;44(9):1035-9. doi: 10.1038/ng.2356. Epub 2012 Jul 29. PMID:22842230 doi:10.1038/ng.2356
  2. ↑ Chiang PW, Wang J, Chen Y, Fu Q, Zhong J, Chen Y, Yi X, Wu R, Gan H, Shi Y, Chen Y, Barnett C, Wheaton D, Day M, Sutherland J, Heon E, Weleber RG, Gabriel LA, Cong P, Chuang K, Ye S, Sallum JM, Qi M. Exome sequencing identifies NMNAT1 mutations as a cause of Leber congenital amaurosis. Nat Genet. 2012 Sep;44(9):972-4. doi: 10.1038/ng.2370. Epub 2012 Jul 29. PMID:22842231 doi:10.1038/ng.2370
  3. ↑ Perrault I, Hanein S, Zanlonghi X, Serre V, Nicouleau M, Defoort-Delhemmes S, Delphin N, Fares-Taie L, Gerber S, Xerri O, Edelson C, Goldenberg A, Duncombe A, Le Meur G, Hamel C, Silva E, Nitschke P, Calvas P, Munnich A, Roche O, Dollfus H, Kaplan J, Rozet JM. Mutations in NMNAT1 cause Leber congenital amaurosis with early-onset severe macular and optic atrophy. Nat Genet. 2012 Sep;44(9):975-7. doi: 10.1038/ng.2357. Epub 2012 Jul 29. PMID:22842229 doi:10.1038/ng.2357
  4. ↑ Falk MJ, Zhang Q, Nakamaru-Ogiso E, Kannabiran C, Fonseca-Kelly Z, Chakarova C, Audo I, Mackay DS, Zeitz C, Borman AD, Staniszewska M, Shukla R, Palavalli L, Mohand-Said S, Waseem NH, Jalali S, Perin JC, Place E, Ostrovsky J, Xiao R, Bhattacharya SS, Consugar M, Webster AR, Sahel JA, Moore AT, Berson EL, Liu Q, Gai X, Pierce EA. NMNAT1 mutations cause Leber congenital amaurosis. Nat Genet. 2012 Sep;44(9):1040-5. doi: 10.1038/ng.2361. Epub 2012 Jul 29. PMID:22842227 doi:10.1038/ng.2361
  5. ↑ Sorci L, Cimadamore F, Scotti S, Petrelli R, Cappellacci L, Franchetti P, Orsomando G, Magni G. Initial-rate kinetics of human NMN-adenylyltransferases: substrate and metal ion specificity, inhibition by products and multisubstrate analogues, and isozyme contributions to NAD+ biosynthesis. Biochemistry. 2007 Apr 24;46(16):4912-22. Epub 2007 Apr 3. PMID:17402747 doi:10.1021/bi6023379

1kr2, resolution 2.30Å

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