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.


1lbe

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (08:08, 3 April 2024) (edit) (undo)
 
(14 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1lbe.gif|left|200px]]<br /><applet load="1lbe" size="350" color="white" frame="true" align="right" spinBox="true"
 
-
caption="1lbe, resolution 2.4&Aring;" />
 
-
'''APLYSIA ADP RIBOSYL CYCLASE'''<br />
 
-
==Overview==
+
==APLYSIA ADP RIBOSYL CYCLASE==
-
ADP ribosyl cyclase synthesizes the novel secondary messenger cyclic ADP ribose (cADPR) utilizing NAD as a substrate. The enzyme shares extensive sequence similarity with two lymphocyte antigens, CD38 and BST-1, which hydrolyse as well as synthesize cADPR. The crystal structure provides a model for these cell surface enzymes. Cyclase contains two spatially separated pockets composed of sequence conserved residues, suggesting that the cyclization reaction may entail use of distinct sites. The enzyme dimer encloses a cavity which may entrap the intermediate, ADP ribose.
+
<StructureSection load='1lbe' size='340' side='right'caption='[[1lbe]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
-
 
+
== Structural highlights ==
-
==About this Structure==
+
<table><tr><td colspan='2'>[[1lbe]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Aplysia_californica Aplysia californica]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LBE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LBE FirstGlance]. <br>
-
1LBE is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Aplysia_californica Aplysia californica]. Active as [http://en.wikipedia.org/wiki/NAD(+)_nucleosidase NAD(+) nucleosidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.2.5 3.2.2.5] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LBE OCA].
+
</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='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1lbe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lbe OCA], [https://pdbe.org/1lbe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lbe RCSB], [https://www.ebi.ac.uk/pdbsum/1lbe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lbe ProSAT]</span></td></tr>
-
==Reference==
+
</table>
-
Crystal structure of Aplysia ADP ribosyl cyclase, a homologue of the bifunctional ectozyme CD38., Prasad GS, McRee DE, Stura EA, Levitt DG, Lee HC, Stout CD, Nat Struct Biol. 1996 Nov;3(11):957-64. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8901875 8901875]
+
== Function ==
 +
[https://www.uniprot.org/uniprot/NADA_APLCA NADA_APLCA] Synthesizes the second messagers cyclic ADP-ribose and nicotinate-adenine dinucleotide phosphate, the former a second messenger for calcium mobilization from endoplasmic reticulum. Also has cADPr hydrolase activity.<ref>PMID:11829748</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/lb/1lbe_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=1lbe ConSurf].
 +
<div style="clear:both"></div>
 +
== References ==
 +
<references/>
 +
__TOC__
 +
</StructureSection>
[[Category: Aplysia californica]]
[[Category: Aplysia californica]]
-
[[Category: NAD(+) nucleosidase]]
+
[[Category: Large Structures]]
-
[[Category: Single protein]]
+
[[Category: Lee HC]]
-
[[Category: Lee, H C.]]
+
[[Category: Levitt DG]]
-
[[Category: Levitt, D G.]]
+
[[Category: Mcree DE]]
-
[[Category: Mcree, D E.]]
+
[[Category: Prasad GS]]
-
[[Category: Prasad, G S.]]
+
[[Category: Stout CD]]
-
[[Category: Stout, C D.]]
+
[[Category: Stura EA]]
-
[[Category: Stura, E A.]]
+
-
[[Category: hydrolase]]
+
-
[[Category: nad(+) nucleosidase]]
+
-
[[Category: nadase]]
+
-
 
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 13:43:22 2008''
+

Current revision

APLYSIA ADP RIBOSYL CYCLASE

PDB ID 1lbe

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools