3hsd: Difference between revisions

From Proteopedia
Jump to navigation Jump to search
← Older edit
No edit summary
No edit summary
 
(2 intermediate revisions by the same user not shown)
Line 1: Line 1:


==Crystal structure of E. coli HPPK(Y53A)==
==Crystal structure of E. coli HPPK(Y53A)==
<StructureSection load='3hsd' size='340' side='right' caption='[[3hsd]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
<StructureSection load='3hsd' size='340' side='right'caption='[[3hsd]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3hsd]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3HSD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3HSD FirstGlance]. <br>
<table><tr><td colspan='2'>[[3hsd]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3HSD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3HSD FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.652&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1hka|1hka]], [[1g4c|1g4c]], [[3hsg|3hsg]], [[3hsj|3hsj]], [[3hsz|3hsz]], [[3ht0|3ht0]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">b0142, foIK, folK, JW0138 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3hsd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hsd OCA], [https://pdbe.org/3hsd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3hsd RCSB], [https://www.ebi.ac.uk/pdbsum/3hsd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3hsd ProSAT]</span></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/2-amino-4-hydroxy-6-hydroxymethyldihydropteridine_diphosphokinase 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.6.3 2.7.6.3] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3hsd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hsd OCA], [http://pdbe.org/3hsd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3hsd RCSB], [http://www.ebi.ac.uk/pdbsum/3hsd PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3hsd ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/HPPK_ECOLI HPPK_ECOLI]
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hs/3hsd_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hs/3hsd_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
Line 20: Line 20:
</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=3hsd ConSurf].
</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=3hsd ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
BACKGROUND: Folate cofactors are essential for life. Mammals derive folates from their diet, whereas most microorganisms must synthesize folates de novo. Enzymes of the folate pathway therefore provide ideal targets for the development of antimicrobial agents. 6-Hydroxymethyl-7,8-dihydropterin pyrophosphokinase (HPPK) catalyzes the transfer of pyrophosphate from ATP to 6-hydroxymethyl-7,8-dihydropterin (HP), the first reaction in the folate biosynthetic pathway. RESULTS: The crystal structure of HPPK from Escherichia coli has been determined at 1.5 A resolution with a crystallographic R factor of 0.182. The HPPK molecule has a novel three-layered alpha beta alpha fold that creates a valley approximately 26 A long, 10 A wide and 10 A deep. The active center of HPPK is located in the valley and the substrate-binding sites have been identified with the aid of NMR spectroscopy. The HP-binding site is located at one end of the valley, near Asn55, and is sandwiched between two aromatic sidechains. The ATP-binding site is located at the other end of the valley. The adenine base of ATP is positioned near Leu111 and the ribose and the triphosphate extend across and reach the vicinity of HP. CONCLUSIONS: The HPPK structure provides a framework to elucidate structure/function relationships of the enzyme and to analyze mechanisms of pyrophosphoryl transfer. Furthermore, this work may prove useful in the structure-based design of new antimicrobial agents.
Crystal structure of 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase, a potential target for the development of novel antimicrobial agents.,Xiao B, Shi G, Chen X, Yan H, Ji X Structure. 1999 May;7(5):489-96. PMID:10378268<ref>PMID:10378268</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3hsd" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[6-hydroxymethyl-7%2C8-dihydropterin pyrophosphokinase|6-hydroxymethyl-7%2C8-dihydropterin pyrophosphokinase]]
*[[HPPK 3D structures|HPPK 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase]]
[[Category: Escherichia coli K-12]]
[[Category: Ecoli]]
[[Category: Large Structures]]
[[Category: Blaszczyk, J]]
[[Category: Blaszczyk J]]
[[Category: Ji, X]]
[[Category: Ji X]]
[[Category: Li, Y]]
[[Category: Li Y]]
[[Category: Yan, H]]
[[Category: Yan H]]
[[Category: Alpha beta]]
[[Category: Atp-binding]]
[[Category: Folate biosynthesis]]
[[Category: Kinase]]
[[Category: Nucleotide-binding]]
[[Category: Transferase]]

Latest revision as of 16:09, 30 August 2023

Crystal structure of E. coli HPPK(Y53A)Crystal structure of E. coli HPPK(Y53A)

Structural highlights

3hsd is a 2 chain structure with sequence from Escherichia coli K-12. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.652Å
Ligands:, ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

HPPK_ECOLI

Evolutionary Conservation

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

See Also

3hsd, resolution 1.65Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA
Retrieved from "https://proteopedia.openfox.io/wiki/index.php?title=3hsd&oldid=3858509"