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2cmg

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Crystal Structure of Spermidine Synthase from Helicobacter Pylori

Structural highlights

2cmg is a 2 chain structure with sequence from Helicobacter pylori 26695. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

SPEE_HELPY Catalyzes the production of spermidine from putrescine and decarboxylated S-adenosylmethionine (dcSAM), which serves as an aminopropyl donor.^[1]

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

Spermidine synthase (putrescine aminopropyltransferase, PAPT) catalyzes the transfer of the aminopropyl group from decarboxylated S-adenosylmethionine to putrescine during spermidine biosynthesis. Helicobacter pylori PAPT (HpPAPT) has a low sequence identity with other PAPTs and lacks the signature sequence found in other PAPTs. The crystal structure of HpPAPT, determined by multiwavelength anomalous dispersion, revealed an N-terminal beta-stranded domain and a C-terminal Rossmann-like domain. Structural comparison with other PAPTs showed that HpPAPT has a unique binding pocket between two domains, numerous non-conserved residues, a less acidic electrostatic surface potential, and a large buried space within the structure. HpPAPT lacks the gatekeeping loop that facilitates substrate binding in other PAPTs. PAPTs are essential for bacterial cell viability; thus, HpPAPT may be a potential antimicrobial drug target for H. pylori owing to its characteristic PAPT sequence and distinct conformation.

Crystal structure of Helicobacter pylori spermidine synthase: a Rossmann-like fold with a distinct active site.,Lu PK, Tsai JY, Chien HY, Huang H, Chu CH, Sun YJ Proteins. 2007 May 15;67(3):743-54. PMID:17357156^[2]

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

References

↑ Lee MJ, Huang CY, Sun YJ, Huang H. Cloning and characterization of spermidine synthase and its implication in polyamine biosynthesis in Helicobacter pylori strain 26695. Protein Expr Purif. 2005 Oct;43(2):140-8. PMID:16009566 doi:http://dx.doi.org/S1046-5928(05)00153-1
↑ Lu PK, Tsai JY, Chien HY, Huang H, Chu CH, Sun YJ. Crystal structure of Helicobacter pylori spermidine synthase: a Rossmann-like fold with a distinct active site. Proteins. 2007 May 15;67(3):743-54. PMID:17357156 doi:10.1002/prot.21315

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/2cmg"

Categories: Helicobacter pylori 26695 | Large Structures | Lu p-k | Sun y-j

@@ Line 3: / Line 3: @@
 <StructureSection load='2cmg' size='340' side='right'caption='[[2cmg]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2cmg]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Campylobacter_pylori Campylobacter pylori]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CMG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CMG FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2cmg]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Helicobacter_pylori_26695 Helicobacter pylori 26695]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CMG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CMG 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;'>[[2cmh|2cmh]]</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&#8491;</td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Spermidine_synthase Spermidine synthase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.16 2.5.1.16] </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=2cmg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cmg OCA], [https://pdbe.org/2cmg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2cmg RCSB], [https://www.ebi.ac.uk/pdbsum/2cmg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2cmg ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/SPEE_HELPY SPEE_HELPY]] Catalyzes the production of spermidine from putrescine and decarboxylated S-adenosylmethionine (dcSAM), which serves as an aminopropyl donor.<ref>PMID:16009566</ref>
+[https://www.uniprot.org/uniprot/SPEE_HELPY SPEE_HELPY] Catalyzes the production of spermidine from putrescine and decarboxylated S-adenosylmethionine (dcSAM), which serves as an aminopropyl donor.<ref>PMID:16009566</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 36: / Line 35: @@
 __TOC__
 </StructureSection>
-[[Category: Campylobacter pylori]]
+[[Category: Helicobacter pylori 26695]]
 [[Category: Large Structures]]
-[[Category: Spermidine synthase]]
+[[Category: Lu p-k]]
-[[Category: Lu, p k]]
+[[Category: Sun y-j]]
-[[Category: Sun, y j]]
-[[Category: Polyamine biosynthesis]]
-[[Category: Putrescine aminopropyltransferase]]
-[[Category: Spee]]
-[[Category: Spermidine biosynthesis]]
-[[Category: Transferase]]

2cmg

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Current revision

Crystal Structure of Spermidine Synthase from Helicobacter Pylori

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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