1zdp: Difference between revisions
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==Crystal Structure Analysis of Thermolysin Complexed with the Inhibitor (S)-thiorphan== | ==Crystal Structure Analysis of Thermolysin Complexed with the Inhibitor (S)-thiorphan== | ||
<StructureSection load='1zdp' size='340' side='right' caption='[[1zdp]], [[Resolution|resolution]] 1.70Å' scene=''> | <StructureSection load='1zdp' size='340' side='right'caption='[[1zdp]], [[Resolution|resolution]] 1.70Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1zdp]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/'bacillus_thermoproteolyticus' 'bacillus thermoproteolyticus']. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZDP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZDP FirstGlance]. <br> | <table><tr><td colspan='2'>[[1zdp]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/'bacillus_thermoproteolyticus' 'bacillus thermoproteolyticus']. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZDP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZDP FirstGlance]. <br> | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zd/1zdp_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zd/1zdp_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Bacillus thermoproteolyticus]] | [[Category: Bacillus thermoproteolyticus]] | ||
[[Category: Large Structures]] | |||
[[Category: Thermolysin]] | [[Category: Thermolysin]] | ||
[[Category: Fournie-Zaluski, M C]] | [[Category: Fournie-Zaluski, M C]] | ||
Revision as of 12:35, 24 July 2019
Crystal Structure Analysis of Thermolysin Complexed with the Inhibitor (S)-thiorphanCrystal Structure Analysis of Thermolysin Complexed with the Inhibitor (S)-thiorphan
Structural highlights
Function[THER_BACTH] Extracellular zinc metalloprotease. 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 PubMedThe three-dimensional structures of (S)-thiorphan and (R)-retro-thiorphan bound to thermolysin have been determined crystallographically and refined to residuals of 0.183 and 0.187 at 1.7-A resolution. Thiorphan [N-[(S)-2-(mercaptomethyl)-1-oxo-3-phenylpropyl]glycine] [HSCH2CH(CH2C6H5)CONHC-H2COOH] and retro-thiorphan [[[(R)-1-(mercaptomethyl)-2-phenylethyl] amino]-3-oxopropanoic acid] [HSCH2CH(CH2C6H5)NHCOCH2COOH] are isomeric thiol-containing inhibitors of endopeptidase EC 24-11 (also called "enkephalinase"). The mode of binding of thiorphan to thermolysin is similar to that of (2-benzyl-3-mercaptopropanoyl)-L-alanylglycinamide [Monzingo, A.F., & Matthews, B.W. (1982) Biochemistry 21, 3390-3394] with the inhibitor sulfur atom coordinated to the active site zinc and the peptide portion forming substrate-like interactions with the enzyme. The isomeric inhibitor retro-thiorphan, which differs from thiorphan by the inversion of an amide bond, utilizes very similar interactions with enzyme. Despite the inversion of the -CO-NH- linkage the carbonyl oxygen and amide nitrogen display very similar hydrogen bonding, as anticipated by B.P. Roques et al. [(1983) Proc. Natl. Acad. Sci. U.S.A. 80, 3178-3182]. These results explain why thermolysin and possibly other zinc endopeptidases such as endopeptidase EC 24-11 fail to discriminate between these retro-inverso inhibitors. Thiorphan and retro-thiorphan display equivalent interactions when bound to crystalline thermolysin.,Roderick SL, Fournie-Zaluski MC, Roques BP, Matthews BW Biochemistry. 1989 Feb 21;28(4):1493-7. PMID:2719912[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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