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.


1jvz

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (07:55, 3 April 2024) (edit) (undo)
 
(13 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1jvz.gif|left|200px]]
 
-
{{Structure
+
==Structure of cephalosporin acylase in complex with glutaryl-7-aminocephalosporanic acid==
-
|PDB= 1jvz |SIZE=350|CAPTION= <scene name='initialview01'>1jvz</scene>, resolution 2.6&Aring;
+
<StructureSection load='1jvz' size='340' side='right'caption='[[1jvz]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
-
|SITE=
+
== Structural highlights ==
-
|LIGAND= <scene name='pdbligand=CEN:7BETA-(4CARBOXYBUTANAMIDO) CEPHALOSPORANIC ACID'>CEN</scene>
+
<table><tr><td colspan='2'>[[1jvz]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Brevundimonas_diminuta Brevundimonas diminuta]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JVZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JVZ FirstGlance]. <br>
-
|ACTIVITY=
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6&#8491;</td></tr>
-
|GENE=
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CEN:7BETA-(4CARBOXYBUTANAMIDO)+CEPHALOSPORANIC+ACID'>CEN</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></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=1jvz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jvz OCA], [https://pdbe.org/1jvz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jvz RCSB], [https://www.ebi.ac.uk/pdbsum/1jvz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jvz ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/G7AC_BREDI G7AC_BREDI] Catalyzes the deacylation of 7 beta-(4-carboxybutanamido)cephalosporanic acid (glutaryl-7-aminocephalosporanic acid or GL-7-ACA) to 7-aminocephalosporanic acid (7-ACA). Can not efficiently use cephalosporin C (CPC), penicillin G, or ampicillin as substrates.<ref>PMID:11080627</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/jv/1jvz_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=1jvz ConSurf].
 +
<div style="clear:both"></div>
-
'''Structure of cephalosporin acylase in complex with glutaryl-7-aminocephalosporanic acid'''
+
==See Also==
-
 
+
*[[Cephalosporin acylase 3D structures|Cephalosporin acylase 3D structures]]
-
 
+
== References ==
-
==Overview==
+
<references/>
-
BACKGROUND: Semisynthetic cephalosporins are primarily synthesized from 7-aminocephalosporanic acid (7-ACA), which is obtained by environmentally toxic chemical deacylation of cephalosporin C (CPC). Thus, the enzymatic conversion of CPC to 7-ACA by cephalosporin acylase (CA) would be of great interest. However, CAs use glutaryl-7-ACA (GL-7-ACA) as a primary substrate and the enzyme has low turnover rates for CPC. RESULTS: The binary complex structures of CA with GL-7-ACA and glutarate (the side-chain of GL-7-ACA) show extensive interactions between the glutaryl moiety of GL-7-ACA and the seven residues that form the side-chain pocket. These interactions explain why the D-alpha-aminoadipyl side-chain of CPC yields a poorer substrate than GL-7-ACA. CONCLUSIONS: This understanding of the nature of substrate specificity may be useful in the design of an enzyme with an improved performance for the conversion of CPC to 7-ACA. Additionally, the catalytic mechanism of the deacylation reaction was revealed by the ligand bound structures.
+
__TOC__
-
 
+
</StructureSection>
-
==About this Structure==
+
-
1JVZ is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Brevundimonas_diminuta Brevundimonas diminuta]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JVZ OCA].
+
-
 
+
-
==Reference==
+
-
Structure of cephalosporin acylase in complex with glutaryl-7-aminocephalosporanic acid and glutarate: insight into the basis of its substrate specificity., Kim Y, Hol WG, Chem Biol. 2001 Dec;8(12):1253-64. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11755403 11755403]
+
[[Category: Brevundimonas diminuta]]
[[Category: Brevundimonas diminuta]]
-
[[Category: Protein complex]]
+
[[Category: Large Structures]]
-
[[Category: Hol, W G.J.]]
+
[[Category: Hol WGJ]]
-
[[Category: Kim, Y.]]
+
[[Category: Kim Y]]
-
[[Category: CEN]]
+
-
[[Category: cephalosporin acylase]]
+
-
[[Category: glutaryl-7-aminocephalosporanic acid]]
+
-
 
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:09:14 2008''
+

Current revision

Structure of cephalosporin acylase in complex with glutaryl-7-aminocephalosporanic acid

PDB ID 1jvz

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1jvz"
Personal tools