1hm0

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[[Image:1hm0.gif|left|200px]]
 
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{{Structure
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==CRYSTAL STRUCTURE OF S.PNEUMONIAE N-ACETYLGLUCOSAMINE 1-PHOSPHATE URIDYLTRANSFERASE, GLMU==
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|PDB= 1hm0 |SIZE=350|CAPTION= <scene name='initialview01'>1hm0</scene>, resolution 2.3&Aring;
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<StructureSection load='1hm0' size='340' side='right'caption='[[1hm0]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>
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<table><tr><td colspan='2'>[[1hm0]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_pneumoniae Streptococcus pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HM0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HM0 FirstGlance]. <br>
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/UDP-N-acetylglucosamine_diphosphorylase UDP-N-acetylglucosamine diphosphorylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.23 2.7.7.23] </span>
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</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>
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|GENE= GLMU ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1313 Streptococcus pneumoniae])
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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|DOMAIN=
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1hm0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hm0 OCA], [https://pdbe.org/1hm0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hm0 RCSB], [https://www.ebi.ac.uk/pdbsum/1hm0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hm0 ProSAT]</span></td></tr>
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|RELATEDENTRY=[[1fwy|1FWY]], [[1fxj|1FXJ]], [[1hm8|1HM8]], [[1hm9|1HM9]]
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1hm0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hm0 OCA], [http://www.ebi.ac.uk/pdbsum/1hm0 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1hm0 RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/GLMU_STRPN GLMU_STRPN] Catalyzes the last two sequential reactions in the de novo biosynthetic pathway for UDP-N-acetylglucosamine (UDP-GlcNAc). The C-terminal domain catalyzes the transfer of acetyl group from acetyl coenzyme A to glucosamine-1-phosphate (GlcN-1-P) to produce N-acetylglucosamine-1-phosphate (GlcNAc-1-P), which is converted into UDP-GlcNAc by the transfer of uridine 5-monophosphate (from uridine 5-triphosphate), a reaction catalyzed by the N-terminal domain (By similarity).
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hm/1hm0_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1hm0 ConSurf].
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<div style="clear:both"></div>
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'''CRYSTAL STRUCTURE OF S.PNEUMONIAE N-ACETYLGLUCOSAMINE 1-PHOSPHATE URIDYLTRANSFERASE, GLMU'''
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==See Also==
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*[[N-acetylglucosamine-1-phosphate uridyltransferase|N-acetylglucosamine-1-phosphate uridyltransferase]]
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__TOC__
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==Overview==
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</StructureSection>
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The bifunctional bacterial enzyme N-acetyl-glucosamine-1-phosphate uridyltransferase (GlmU) catalyzes the two-step formation of UDP-GlcNAc, a fundamental precursor in bacterial cell wall biosynthesis. With the emergence of new resistance mechanisms against beta-lactam and glycopeptide antibiotics, the biosynthetic pathway of UDP-GlcNAc represents an attractive target for drug design of new antibacterial agents. The crystal structures of Streptococcus pneumoniae GlmU in unbound form, in complex with acetyl-coenzyme A (AcCoA) and in complex with both AcCoA and the end product UDP-GlcNAc, have been determined and refined to 2.3, 2.5, and 1.75 A, respectively. The S. pneumoniae GlmU molecule is organized in two separate domains connected via a long alpha-helical linker and associates as a trimer, with the 50-A-long left-handed beta-helix (LbetaH) C-terminal domains packed against each other in a parallel fashion and the C-terminal region extended far away from the LbetaH core and exchanged with the beta-helix from a neighboring subunit in the trimer. AcCoA binding induces the formation of a long and narrow tunnel, enclosed between two adjacent LbetaH domains and the interchanged C-terminal region of the third subunit, giving rise to an original active site architecture at the junction of three subunits.
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[[Category: Large Structures]]
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==About this Structure==
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1HM0 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Streptococcus_pneumoniae Streptococcus pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HM0 OCA].
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==Reference==
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Crystal structure of Streptococcus pneumoniae N-acetylglucosamine-1-phosphate uridyltransferase bound to acetyl-coenzyme A reveals a novel active site architecture., Sulzenbacher G, Gal L, Peneff C, Fassy F, Bourne Y, J Biol Chem. 2001 Apr 13;276(15):11844-51. Epub 2000 Dec 15. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11118459 11118459]
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[[Category: Single protein]]
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[[Category: Streptococcus pneumoniae]]
[[Category: Streptococcus pneumoniae]]
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[[Category: UDP-N-acetylglucosamine diphosphorylase]]
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[[Category: Bourne Y]]
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[[Category: Bourne, Y.]]
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[[Category: Fassy F]]
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[[Category: Fassy, F.]]
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[[Category: Gal L]]
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[[Category: Gal, L.]]
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[[Category: Peneff C]]
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[[Category: Peneff, C.]]
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[[Category: Sulzenbacher G]]
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[[Category: Sulzenbacher, G.]]
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[[Category: domain-interchange]]
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[[Category: left-handed-beta-helix]]
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[[Category: rossmann-like fold]]
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[[Category: trimer]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:07:28 2008''
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Current revision

CRYSTAL STRUCTURE OF S.PNEUMONIAE N-ACETYLGLUCOSAMINE 1-PHOSPHATE URIDYLTRANSFERASE, GLMU

PDB ID 1hm0

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