1zo9: Difference between revisions

From Proteopedia
Jump to navigation Jump to search
← Older edit
No edit summary
No edit summary
 
(11 intermediate revisions by the same user not shown)
Line 1: Line 1:
{{Seed}}
[[Image:1zo9.png|left|200px]]


<!--
==Crystal Structure Of The Wild Type Heme Domain Of P450BM-3 with N-palmitoylmethionine==
The line below this paragraph, containing "STRUCTURE_1zo9", creates the "Structure Box" on the page.
<StructureSection load='1zo9' size='340' side='right'caption='[[1zo9]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1zo9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Priestia_megaterium Priestia megaterium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZO9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZO9 FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7&#8491;</td></tr>
-->
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EPM:N-PALMITOYL-L-METHIONINE'>EPM</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene></td></tr>
{{STRUCTURE_1zo9|  PDB=1zo9  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1zo9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zo9 OCA], [https://pdbe.org/1zo9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zo9 RCSB], [https://www.ebi.ac.uk/pdbsum/1zo9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zo9 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CPXB_PRIM2 CPXB_PRIM2] Functions as a fatty acid monooxygenase (PubMed:3106359, PubMed:1727637, PubMed:16566047, PubMed:7578081, PubMed:11695892, PubMed:14653735, PubMed:16403573, PubMed:18004886, PubMed:17077084, PubMed:17868686, PubMed:18298086, PubMed:18619466, PubMed:18721129, PubMed:19492389, PubMed:20180779, PubMed:21110374, PubMed:21875028). Catalyzes hydroxylation of fatty acids at omega-1, omega-2 and omega-3 positions (PubMed:1727637, PubMed:21875028). Shows activity toward medium and long-chain fatty acids, with optimum chain lengths of 12, 14 and 16 carbons (lauric, myristic, and palmitic acids). Able to metabolize some of these primary metabolites to secondary and tertiary products (PubMed:1727637). Marginal activity towards short chain lengths of 8-10 carbons (PubMed:1727637, PubMed:18619466). Hydroxylates highly branched fatty acids, which play an essential role in membrane fluidity regulation (PubMed:16566047). Also displays a NADPH-dependent reductase activity in the C-terminal domain, which allows electron transfer from NADPH to the heme iron of the cytochrome P450 N-terminal domain (PubMed:3106359, PubMed:1727637, PubMed:16566047, PubMed:7578081, PubMed:11695892, PubMed:14653735, PubMed:16403573, PubMed:18004886, PubMed:17077084, PubMed:17868686, PubMed:18298086, PubMed:18619466, PubMed:18721129, PubMed:19492389, PubMed:20180779, PubMed:21110374, PubMed:21875028). Involved in inactivation of quorum sensing signals of other competing bacteria by oxidazing efficiently acyl homoserine lactones (AHLs), molecules involved in quorum sensing signaling pathways, and their lactonolysis products acyl homoserines (AHs) (PubMed:18020460).<ref>PMID:11695892</ref> <ref>PMID:14653735</ref> <ref>PMID:16403573</ref> <ref>PMID:16566047</ref> <ref>PMID:17077084</ref> <ref>PMID:1727637</ref> <ref>PMID:17868686</ref> <ref>PMID:18004886</ref> <ref>PMID:18020460</ref> <ref>PMID:18298086</ref> <ref>PMID:18619466</ref> <ref>PMID:18721129</ref> <ref>PMID:19492389</ref> <ref>PMID:20180779</ref> <ref>PMID:21110374</ref> <ref>PMID:21875028</ref> <ref>PMID:3106359</ref> <ref>PMID:7578081</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zo/1zo9_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1zo9 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Cytochrome P450s are a superfamily of heme containing enzymes that use molecular oxygen and electrons from reduced nicotinamide cofactors to monooxygenate organic substrates. The fatty acid hydroxylase P450BM-3 has been particularly widely studied due to its stability, high activity, similarity to mammalian P450s, and presence of a cytochrome P450 reductase domain that allows the enzyme to directly receive electrons from NADPH without a requirement for additional redox proteins. We previously characterized the substrate N-palmitoylglycine, which found extensive use in studies of P450BM-3 due to its high affinity, high turnover number, and increased solubility as compared to fatty acid substrates. Here, we report that even higher affinity substrates can be designed by acylation of other amino acids, resulting in P450BM-3 substrates with dissociation constants below 100 nM. N-Palmitoyl-l-leucine and N-palmitoyl-l-methionine were found to have the highest affinity, with dissociation constants of less than 8 nM and turnover numbers similar to palmitic acid and N-palmitoylglycine. The interactions of the amino acid side chains with a hydrophobic pocket near R47, as revealed by our crystal structure determination of N-palmitoyl-l-methionine bound to the heme domain of P450BM-3, appears to be responsible for increasing the affinity of substrates. The side chain of R47, previously shown to be important in interactions with negatively charged substrates, does not interact strongly with N-palmitoyl-l-methionine and is found positioned at the enzyme-solvent interface. These are the tightest binding substrates for P450BM-3 reported to date, and the affinity likely approaches the maximum attainable affinity for the binding of substrates of this size to P450BM-3.


===Crystal Structure Of The Wild Type Heme Domain Of P450BM-3 with N-palmitoylmethionine===
Interactions of substrates at the surface of P450s can greatly enhance substrate potency.,Hegde A, Haines DC, Bondlela M, Chen B, Schaffer N, Tomchick DR, Machius M, Nguyen H, Chowdhary PK, Stewart L, Lopez C, Peterson JA Biochemistry. 2007 Dec 11;46(49):14010-7. Epub 2007 Nov 16. PMID:18004886<ref>PMID:18004886</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1zo9" style="background-color:#fffaf0;"></div>


<!--
==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_18004886}}, adds the Publication Abstract to the page
*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 18004886 is the PubMed ID number.
== References ==
-->
<references/>
{{ABSTRACT_PUBMED_18004886}}
__TOC__
 
</StructureSection>
==About this Structure==
[[Category: Large Structures]]
1ZO9 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_megaterium Bacillus megaterium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZO9 OCA].
[[Category: Priestia megaterium]]
 
[[Category: Bondlela M]]
==Reference==
[[Category: Chen B]]
Interactions of substrates at the surface of P450s can greatly enhance substrate potency., Hegde A, Haines DC, Bondlela M, Chen B, Schaffer N, Tomchick DR, Machius M, Nguyen H, Chowdhary PK, Stewart L, Lopez C, Peterson JA, Biochemistry. 2007 Dec 11;46(49):14010-7. Epub 2007 Nov 16. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/18004886 18004886]
[[Category: Graham SE]]
[[Category: Bacillus megaterium]]
[[Category: Haines DC]]
[[Category: Single protein]]
[[Category: Hegda A]]
[[Category: Unspecific monooxygenase]]
[[Category: Machius M]]
[[Category: Bondlela, M.]]
[[Category: Peterson JA]]
[[Category: Chen, B.]]
[[Category: Schaffer N]]
[[Category: Graham, S E.]]
[[Category: Tomchick DR]]
[[Category: Haines, D C.]]
[[Category: Hegda, A.]]
[[Category: Machius, M.]]
[[Category: Peterson, J A.]]
[[Category: Schaffer, N.]]
[[Category: Tomchick, D R.]]
[[Category: Cytochrome p-450]]
[[Category: Oxidoreductase]]
[[Category: Wild type heme protein]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Nov 26 20:22:13 2008''

Latest revision as of 10:11, 23 August 2023

Crystal Structure Of The Wild Type Heme Domain Of P450BM-3 with N-palmitoylmethionineCrystal Structure Of The Wild Type Heme Domain Of P450BM-3 with N-palmitoylmethionine

Structural highlights

1zo9 is a 2 chain structure with sequence from Priestia megaterium. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.7Å
Ligands:, , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CPXB_PRIM2 Functions as a fatty acid monooxygenase (PubMed:3106359, PubMed:1727637, PubMed:16566047, PubMed:7578081, PubMed:11695892, PubMed:14653735, PubMed:16403573, PubMed:18004886, PubMed:17077084, PubMed:17868686, PubMed:18298086, PubMed:18619466, PubMed:18721129, PubMed:19492389, PubMed:20180779, PubMed:21110374, PubMed:21875028). Catalyzes hydroxylation of fatty acids at omega-1, omega-2 and omega-3 positions (PubMed:1727637, PubMed:21875028). Shows activity toward medium and long-chain fatty acids, with optimum chain lengths of 12, 14 and 16 carbons (lauric, myristic, and palmitic acids). Able to metabolize some of these primary metabolites to secondary and tertiary products (PubMed:1727637). Marginal activity towards short chain lengths of 8-10 carbons (PubMed:1727637, PubMed:18619466). Hydroxylates highly branched fatty acids, which play an essential role in membrane fluidity regulation (PubMed:16566047). Also displays a NADPH-dependent reductase activity in the C-terminal domain, which allows electron transfer from NADPH to the heme iron of the cytochrome P450 N-terminal domain (PubMed:3106359, PubMed:1727637, PubMed:16566047, PubMed:7578081, PubMed:11695892, PubMed:14653735, PubMed:16403573, PubMed:18004886, PubMed:17077084, PubMed:17868686, PubMed:18298086, PubMed:18619466, PubMed:18721129, PubMed:19492389, PubMed:20180779, PubMed:21110374, PubMed:21875028). Involved in inactivation of quorum sensing signals of other competing bacteria by oxidazing efficiently acyl homoserine lactones (AHLs), molecules involved in quorum sensing signaling pathways, and their lactonolysis products acyl homoserines (AHs) (PubMed:18020460).[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18]

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

Cytochrome P450s are a superfamily of heme containing enzymes that use molecular oxygen and electrons from reduced nicotinamide cofactors to monooxygenate organic substrates. The fatty acid hydroxylase P450BM-3 has been particularly widely studied due to its stability, high activity, similarity to mammalian P450s, and presence of a cytochrome P450 reductase domain that allows the enzyme to directly receive electrons from NADPH without a requirement for additional redox proteins. We previously characterized the substrate N-palmitoylglycine, which found extensive use in studies of P450BM-3 due to its high affinity, high turnover number, and increased solubility as compared to fatty acid substrates. Here, we report that even higher affinity substrates can be designed by acylation of other amino acids, resulting in P450BM-3 substrates with dissociation constants below 100 nM. N-Palmitoyl-l-leucine and N-palmitoyl-l-methionine were found to have the highest affinity, with dissociation constants of less than 8 nM and turnover numbers similar to palmitic acid and N-palmitoylglycine. The interactions of the amino acid side chains with a hydrophobic pocket near R47, as revealed by our crystal structure determination of N-palmitoyl-l-methionine bound to the heme domain of P450BM-3, appears to be responsible for increasing the affinity of substrates. The side chain of R47, previously shown to be important in interactions with negatively charged substrates, does not interact strongly with N-palmitoyl-l-methionine and is found positioned at the enzyme-solvent interface. These are the tightest binding substrates for P450BM-3 reported to date, and the affinity likely approaches the maximum attainable affinity for the binding of substrates of this size to P450BM-3.

Interactions of substrates at the surface of P450s can greatly enhance substrate potency.,Hegde A, Haines DC, Bondlela M, Chen B, Schaffer N, Tomchick DR, Machius M, Nguyen H, Chowdhary PK, Stewart L, Lopez C, Peterson JA Biochemistry. 2007 Dec 11;46(49):14010-7. Epub 2007 Nov 16. PMID:18004886[19]

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

See Also

References

  1. ↑ Haines DC, Tomchick DR, Machius M, Peterson JA. Pivotal role of water in the mechanism of P450BM-3. Biochemistry. 2001 Nov 13;40(45):13456-65. PMID:11695892
  2. ↑ Ost TW, Clark J, Mowat CG, Miles CS, Walkinshaw MD, Reid GA, Chapman SK, Daff S. Oxygen activation and electron transfer in flavocytochrome P450 BM3. J Am Chem Soc. 2003 Dec 10;125(49):15010-20. PMID:14653735 doi:http://dx.doi.org/10.1021/ja035731o
  3. ↑ Clark JP, Miles CS, Mowat CG, Walkinshaw MD, Reid GA, Daff SN, Chapman SK. The role of Thr268 and Phe393 in cytochrome P450 BM3. J Inorg Biochem. 2006 May;100(5-6):1075-90. Epub 2006 Jan 5. PMID:16403573 doi:10.1016/j.jinorgbio.2005.11.020
  4. ↑ Budde M, Morr M, Schmid RD, Urlacher VB. Selective hydroxylation of highly branched fatty acids and their derivatives by CYP102A1 from Bacillus megaterium. Chembiochem. 2006 May;7(5):789-94. PMID:16566047 doi:http://dx.doi.org/10.1002/cbic.200500444
  5. ↑ Girvan HM, Seward HE, Toogood HS, Cheesman MR, Leys D, Munro AW. Structural and spectroscopic characterization of P450 BM3 mutants with unprecedented P450 heme iron ligand sets. New heme ligation states influence conformational equilibria in P450 BM3. J Biol Chem. 2007 Jan 5;282(1):564-72. Epub 2006 Oct 31. PMID:17077084 doi:10.1074/jbc.M607949200
  6. ↑ Boddupalli SS, Pramanik BC, Slaughter CA, Estabrook RW, Peterson JA. Fatty acid monooxygenation by P450BM-3: product identification and proposed mechanisms for the sequential hydroxylation reactions. Arch Biochem Biophys. 1992 Jan;292(1):20-8. PMID:1727637
  7. ↑ Huang WC, Westlake AC, Marechal JD, Joyce MG, Moody PC, Roberts GC. Filling a hole in cytochrome P450 BM3 improves substrate binding and catalytic efficiency. J Mol Biol. 2007 Oct 26;373(3):633-51. Epub 2007 Aug 21. PMID:17868686 doi:S0022-2836(07)01086-8
  8. ↑ Hegde A, Haines DC, Bondlela M, Chen B, Schaffer N, Tomchick DR, Machius M, Nguyen H, Chowdhary PK, Stewart L, Lopez C, Peterson JA. Interactions of substrates at the surface of P450s can greatly enhance substrate potency. Biochemistry. 2007 Dec 11;46(49):14010-7. Epub 2007 Nov 16. PMID:18004886 doi:10.1021/bi701667m
  9. ↑ Chowdhary PK, Keshavan N, Nguyen HQ, Peterson JA, Gonzalez JE, Haines DC. Bacillus megaterium CYP102A1 oxidation of acyl homoserine lactones and acyl homoserines. Biochemistry. 2007 Dec 18;46(50):14429-37. Epub 2007 Nov 20. PMID:18020460 doi:http://dx.doi.org/10.1021/bi701945j
  10. ↑ Haines DC, Chen B, Tomchick DR, Bondlela M, Hegde A, Machius M, Peterson JA. Crystal structure of inhibitor-bound P450BM-3 reveals open conformation of substrate access channel. Biochemistry. 2008 Mar 25;47(12):3662-70. Epub 2008 Feb 26. PMID:18298086 doi:10.1021/bi7023964
  11. ↑ Fasan R, Meharenna YT, Snow CD, Poulos TL, Arnold FH. Evolutionary history of a specialized p450 propane monooxygenase. J Mol Biol. 2008 Nov 28;383(5):1069-80. Epub 2008 Jun 28. PMID:18619466 doi:10.1016/j.jmb.2008.06.060
  12. ↑ Girvan HM, Toogood HS, Littleford RE, Seward HE, Smith WE, Ekanem IS, Leys D, Cheesman MR, Munro AW. Novel haem co-ordination variants of flavocytochrome P450BM3. Biochem J. 2009 Jan 1;417(1):65-76. PMID:18721129 doi:BJ20081133
  13. ↑ Whitehouse CJ, Bell SG, Yang W, Yorke JA, Blanford CF, Strong AJ, Morse EJ, Bartlam M, Rao Z, Wong LL. A Highly Active Single-Mutation Variant of P450(BM3) (CYP102A1). Chembiochem. 2009 Jun 2;10(10):1654-1656. PMID:19492389 doi:10.1002/cbic.200900279
  14. ↑ Girvan HM, Levy CW, Williams P, Fisher K, Cheesman MR, Rigby SE, Leys D, Munro AW. Glutamate-haem ester bond formation is disfavoured in flavocytochrome P450 BM3: characterization of glutamate substitution mutants at the haem site of P450 BM3. Biochem J. 2010 Apr 14;427(3):455-66. PMID:20180779 doi:10.1042/BJ20091603
  15. ↑ Whitehouse CJ, Yang W, Yorke JA, Rowlatt BC, Strong AJ, Blanford CF, Bell SG, Bartlam M, Wong LL, Rao Z. Structural basis for the properties of two single-site proline mutants of CYP102A1 (P450BM3). Chembiochem. 2010 Dec 10;11(18):2549-56. doi: 10.1002/cbic.201000421. PMID:21110374 doi:http://dx.doi.org/10.1002/cbic.201000421
  16. ↑ Haines DC, Hegde A, Chen B, Zhao W, Bondlela M, Humphreys JM, Mullin DA, Tomchick DR, Machius M, Peterson JA. A single active-site mutation of P450BM-3 dramatically enhances substrate binding and rate of product formation. Biochemistry. 2011 Oct 4;50(39):8333-41. Epub 2011 Sep 6. PMID:21875028 doi:10.1021/bi201099j
  17. ↑ Wen LP, Fulco AJ. Cloning of the gene encoding a catalytically self-sufficient cytochrome P-450 fatty acid monooxygenase induced by barbiturates in Bacillus megaterium and its functional expression and regulation in heterologous (Escherichia coli) and homologous (Bacillus megaterium) hosts. J Biol Chem. 1987 May 15;262(14):6676-82. PMID:3106359
  18. ↑ Yeom H, Sligar SG, Li H, Poulos TL, Fulco AJ. The role of Thr268 in oxygen activation of cytochrome P450BM-3. Biochemistry. 1995 Nov 14;34(45):14733-40. PMID:7578081
  19. ↑ Hegde A, Haines DC, Bondlela M, Chen B, Schaffer N, Tomchick DR, Machius M, Nguyen H, Chowdhary PK, Stewart L, Lopez C, Peterson JA. Interactions of substrates at the surface of P450s can greatly enhance substrate potency. Biochemistry. 2007 Dec 11;46(49):14010-7. Epub 2007 Nov 16. PMID:18004886 doi:10.1021/bi701667m

1zo9, resolution 1.70Å

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=1zo9&oldid=3843039"