View source for 7d48


==apo-form cyclic trinucleotide synthase CdnD==
<StructureSection load='7d48' size='340' side='right'caption='[[7d48]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7d48]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Enterobacter_cloacae Enterobacter cloacae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7D48 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7D48 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.15&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NA:SODIUM+ION'>NA</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=7d48 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7d48 OCA], [https://pdbe.org/7d48 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7d48 RCSB], [https://www.ebi.ac.uk/pdbsum/7d48 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7d48 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CDND2_ENTCL CDND2_ENTCL] CBASS (cyclic oligonucleotide-based antiphage signaling system) provides immunity against bacteriophage. The CD-NTase protein synthesizes cyclic nucleotides in response to infection; these serve as specific second messenger signals. The signals activate a diverse range of effectors, leading to bacterial cell death and thus abortive phage infection. A type II-C(AAG) CBASS system (PubMed:32839535).<ref>PMID:32544385</ref> <ref>PMID:32839535</ref>   Cyclic trinucleotide synthase that catalyzes the synthesis of 3',3',3'-cyclic AMP-AMP-GMP as the major product, a second messenger for cell signal transduction.<ref>PMID:30787435</ref>   Protects E.coli against phage T2 infection. When the cdnD-cap2-cap3-cap4 operon is introduced in E.coli there is a more than 10(3) decrease in the efficiency of T2 plaque formation. The operon does not protect against phage T5 and only about 10-fold against T7.<ref>PMID:32544385</ref> 

==See Also==
*[[Cyclic GMP-AMP synthase 3D synthase|Cyclic GMP-AMP synthase 3D synthase]]
== References ==
<references/>
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</StructureSection>
[[Category: Enterobacter cloacae]]
[[Category: Large Structures]]
[[Category: Chen Y]]
[[Category: Hou M-H]]
[[Category: Ko T-P]]
[[Category: Tsai C-L]]
[[Category: Wang Y-C]]
[[Category: Yang C-S]]