This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

2azj

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Current revision

Crystal structure for the mutant D81C of Sulfolobus solfataricus hexaprenyl pyrophosphate synthase

Structural highlights

2azj is a 2 chain structure with sequence from Saccharolobus solfataricus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.4Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

HEXPP_SACS2 Catalyzes consecutive E-type condensation of two isopentenyl pyrophosphate (IPP) molecules with an allylic substrate such as geranylgeranyl diphosphate (GGPP), farnesyl diphosphate (FPP) or geranyl diphosphate (GPP) to yield the medium-chain product trans-C30-hexaprenyl pyrophosphate (HexPP). GGPP is the physiological substrate.^[1] ^[2]

Evolutionary Conservation

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

Publication Abstract from PubMed

Hexaprenyl pyrophosphate synthase (HexPPs) from Sulfolobus solfataricus catalyzes the synthesis of trans-C(30)-hexaprenyl pyrophosphate (HexPP) by reacting two isopentenyl pyrophosphate molecules with one geranylgeranyl pyrophosphate. The crystal structure of the homodimeric C(30)-HexPPs resembles those of other trans-prenyltransferases, including farnesyl pyrophosphate synthase (FPPs) and octaprenyl pyrophosphate synthase (OPPs). In both subunits, 10 core helices are arranged about a central active site cavity. Leu164 in the middle of the cavity controls the product chain length. Two protein conformers are observed in the S. solfataricus HexPPs structure, and the major difference between them occurs in the flexible region of residues 84 to 100. Several helices (alphaI, alphaJ, alphaK, and part of alphaH) and the associated loops have high-temperature factors in one monomer, which may be related to the domain motion that controls the entrance to the active site. Different side chain conformations of Trp136 in two HexPPs subunits result in weaker hydrophobic interactions at the dimer interface, in contrast to the symmetric pi-pi stacking interactions of aromatic side chains found in FPPs and OPPs. Finally, the three-conformer switched model may explain the catalytic process for HexPPs.

Homodimeric hexaprenyl pyrophosphate synthase from the thermoacidophilic crenarchaeon Sulfolobus solfataricus displays asymmetric subunit structures.,Sun HY, Ko TP, Kuo CJ, Guo RT, Chou CC, Liang PH, Wang AH J Bacteriol. 2005 Dec;187(23):8137-48. PMID:16291686^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Hemmi H, Ikejiri S, Yamashita S, Nishino T. Novel medium-chain prenyl diphosphate synthase from the thermoacidophilic archaeon Sulfolobus solfataricus. J Bacteriol. 2002 Feb;184(3):615-20. PMID:11790729 doi:10.1128/JB.184.3.615-620.2002
↑ Sun HY, Ko TP, Kuo CJ, Guo RT, Chou CC, Liang PH, Wang AH. Homodimeric hexaprenyl pyrophosphate synthase from the thermoacidophilic crenarchaeon Sulfolobus solfataricus displays asymmetric subunit structures. J Bacteriol. 2005 Dec;187(23):8137-48. PMID:16291686 doi:http://dx.doi.org/187/23/8137
↑ Sun HY, Ko TP, Kuo CJ, Guo RT, Chou CC, Liang PH, Wang AH. Homodimeric hexaprenyl pyrophosphate synthase from the thermoacidophilic crenarchaeon Sulfolobus solfataricus displays asymmetric subunit structures. J Bacteriol. 2005 Dec;187(23):8137-48. PMID:16291686 doi:http://dx.doi.org/187/23/8137

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2azj"

@@ Line 3: / Line 3: @@
 <StructureSection load='2azj' size='340' side='right'caption='[[2azj]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2azj]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/'saccharolobus_solfataricus' 'saccharolobus solfataricus']. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AZJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AZJ FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2azj]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharolobus_solfataricus Saccharolobus solfataricus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AZJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AZJ FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2azk|2azk]]</div></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]] 2.4&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">gdS-2 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 'Saccharolobus solfataricus'])</td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Dimethylallyltranstransferase Dimethylallyltranstransferase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.1 2.5.1.1] </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=2azj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2azj OCA], [https://pdbe.org/2azj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2azj RCSB], [https://www.ebi.ac.uk/pdbsum/2azj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2azj ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/HEXPP_SACS2 HEXPP_SACS2] Catalyzes consecutive E-type condensation of two isopentenyl pyrophosphate (IPP) molecules with an allylic substrate such as geranylgeranyl diphosphate (GGPP), farnesyl diphosphate (FPP) or geranyl diphosphate (GPP) to yield the medium-chain product trans-C30-hexaprenyl pyrophosphate (HexPP). GGPP is the physiological substrate.<ref>PMID:11790729</ref> <ref>PMID:16291686</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 35: / Line 35: @@
 __TOC__
 </StructureSection>
-[[Category: Saccharolobus solfataricus]]
-[[Category: Dimethylallyltranstransferase]]
 [[Category: Large Structures]]
-[[Category: Chou, C C]]
+[[Category: Saccharolobus solfataricus]]
-[[Category: Guo, R T]]
+[[Category: Chou CC]]
-[[Category: Ko, T P]]
+[[Category: Guo RT]]
-[[Category: Kuo, C J]]
+[[Category: Ko TP]]
-[[Category: Liang, P H]]
+[[Category: Kuo CJ]]
-[[Category: Sun, H Y]]
+[[Category: Liang PH]]
-[[Category: Wang, A H.J]]
+[[Category: Sun HY]]
-[[Category: Hexpp]]
+[[Category: Wang AHJ]]
-[[Category: Trans-prenyltransferase]]
-[[Category: Transferase]]

2azj

From Proteopedia

Current revision

Crystal structure for the mutant D81C of Sulfolobus solfataricus hexaprenyl pyrophosphate synthase

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox