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<StructureSection load='7aaj' size='340' side='right'caption='[[7aaj]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
<StructureSection load='7aaj' size='340' side='right'caption='[[7aaj]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[7aaj]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7AAJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AAJ FirstGlance]. <br>
<table><tr><td colspan='2'>[[7aaj]] is a 2 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=7AAJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AAJ FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DPM:3-[5-{[3-(2-CARBOXYETHYL)-4-(CARBOXYMETHYL)-5-METHYL-1H-PYRROL-2-YL]METHYL}-4-(CARBOXYMETHYL)-1H-PYRROL-3-YL]PROPANOIC+ACID'>DPM</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</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]] 1.8&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[7aak|7aak]]</div></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DPM:3-[5-{[3-(2-CARBOXYETHYL)-4-(CARBOXYMETHYL)-5-METHYL-1H-PYRROL-2-YL]METHYL}-4-(CARBOXYMETHYL)-1H-PYRROL-3-YL]PROPANOIC+ACID'>DPM</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HMBS, PBGD, UPS ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Hydroxymethylbilane_synthase Hydroxymethylbilane synthase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.61 2.5.1.61] </span></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=7aaj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7aaj OCA], [https://pdbe.org/7aaj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7aaj RCSB], [https://www.ebi.ac.uk/pdbsum/7aaj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7aaj ProSAT]</span></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=7aaj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7aaj OCA], [https://pdbe.org/7aaj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7aaj RCSB], [https://www.ebi.ac.uk/pdbsum/7aaj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7aaj ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
[[https://www.uniprot.org/uniprot/HEM3_HUMAN HEM3_HUMAN]] Defects in HMBS are the cause of acute intermittent porphyria (AIP) [MIM:[https://omim.org/entry/176000 176000]]. AIP is a form of porphyria. Porphyrias are inherited defects in the biosynthesis of heme, resulting in the accumulation and increased excretion of porphyrins or porphyrin precursors. They are classified as erythropoietic or hepatic, depending on whether the enzyme deficiency occurs in red blood cells or in the liver. AIP is an autosomal dominant form of hepatic porphyria characterized by acute attacks of neurological dysfunctions with abdominal pain, hypertension, tachycardia, and peripheral neuropathy. Most attacks are precipitated by drugs, alcohol, caloric deprivation, infections, or endocrine factors.<ref>PMID:2243128</ref> <ref>PMID:1714233</ref> <ref>PMID:1496994</ref> <ref>PMID:1427766</ref> <ref>PMID:1301948</ref> <ref>PMID:8262523</ref> <ref>PMID:8401516</ref> <ref>PMID:8268934</ref> <ref>PMID:8270254</ref> <ref>PMID:8270256</ref> <ref>PMID:8081367</ref> <ref>PMID:7962538</ref> <ref>PMID:7757070</ref> <ref>PMID:8825929</ref> <ref>PMID:9199558</ref> <ref>PMID:9225970</ref> <ref>PMID:9654202</ref> <ref>PMID:9463797</ref> <ref>PMID:10494093</ref> <ref>PMID:10453740</ref> <ref>PMID:10502788</ref> <ref>PMID:10657149</ref> <ref>PMID:10602775</ref> <ref>PMID:11399210</ref> <ref>PMID:11030413</ref> <ref>PMID:10782018</ref> <ref>PMID:11013452</ref> [:]<ref>PMID:12406973</ref> <ref>PMID:12372055</ref> <ref>PMID:11857754</ref> <ref>PMID:14669009</ref> <ref>PMID:14970743</ref> <ref>PMID:15669678</ref>
[https://www.uniprot.org/uniprot/HEM3_HUMAN HEM3_HUMAN] Defects in HMBS are the cause of acute intermittent porphyria (AIP) [MIM:[https://omim.org/entry/176000 176000]. AIP is a form of porphyria. Porphyrias are inherited defects in the biosynthesis of heme, resulting in the accumulation and increased excretion of porphyrins or porphyrin precursors. They are classified as erythropoietic or hepatic, depending on whether the enzyme deficiency occurs in red blood cells or in the liver. AIP is an autosomal dominant form of hepatic porphyria characterized by acute attacks of neurological dysfunctions with abdominal pain, hypertension, tachycardia, and peripheral neuropathy. Most attacks are precipitated by drugs, alcohol, caloric deprivation, infections, or endocrine factors.<ref>PMID:2243128</ref> <ref>PMID:1714233</ref> <ref>PMID:1496994</ref> <ref>PMID:1427766</ref> <ref>PMID:1301948</ref> <ref>PMID:8262523</ref> <ref>PMID:8401516</ref> <ref>PMID:8268934</ref> <ref>PMID:8270254</ref> <ref>PMID:8270256</ref> <ref>PMID:8081367</ref> <ref>PMID:7962538</ref> <ref>PMID:7757070</ref> <ref>PMID:8825929</ref> <ref>PMID:9199558</ref> <ref>PMID:9225970</ref> <ref>PMID:9654202</ref> <ref>PMID:9463797</ref> <ref>PMID:10494093</ref> <ref>PMID:10453740</ref> <ref>PMID:10502788</ref> <ref>PMID:10657149</ref> <ref>PMID:10602775</ref> <ref>PMID:11399210</ref> <ref>PMID:11030413</ref> <ref>PMID:10782018</ref> <ref>PMID:11013452</ref> [:]<ref>PMID:12406973</ref> <ref>PMID:12372055</ref> <ref>PMID:11857754</ref> <ref>PMID:14669009</ref> <ref>PMID:14970743</ref> <ref>PMID:15669678</ref>  
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/HEM3_HUMAN HEM3_HUMAN]] Tetrapolymerization of the monopyrrole PBG into the hydroxymethylbilane pre-uroporphyrinogen in several discrete steps.  
[https://www.uniprot.org/uniprot/HEM3_HUMAN HEM3_HUMAN] Tetrapolymerization of the monopyrrole PBG into the hydroxymethylbilane pre-uroporphyrinogen in several discrete steps.
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</div>
</div>
<div class="pdbe-citations 7aaj" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 7aaj" style="background-color:#fffaf0;"></div>
==See Also==
*[[Porphobilinogen Deaminase|Porphobilinogen Deaminase]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Hydroxymethylbilane synthase]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Bustad, H J]]
[[Category: Bustad HJ]]
[[Category: Kallio, J P]]
[[Category: Kallio JP]]
[[Category: Martinez, A]]
[[Category: Martinez A]]
[[Category: Acute intermittent porphyria]]
[[Category: Heme biosynthesis]]
[[Category: Hmb]]
[[Category: Pbg-d]]
[[Category: Porphobilinogen deaminase]]
[[Category: Porphyria]]
[[Category: Transferase]]