Saporin: Difference between revisions

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==Your Heading Here (maybe something like 'Structure')==
==Your Heading Here (maybe something like 'Structure')==
<StructureSection load='1QI7' size='340' side='right' caption='Caption for this structure' scene=''>
<StructureSection load='1stp' size='340' side='right' caption='Caption for this structure' scene=''>
This is a default text for your page '''Saporin'''. Click above on '''edit this page''' to modify. Be careful with the &lt; and &gt; signs.
This is a default text for your page '''Saporin'''. Click above on '''edit this page''' to modify. Be careful with the &lt; and &gt; signs.
You may include any references to papers as in: the use of JSmol in Proteopedia <ref>DOI 10.1002/ijch.201300024</ref> or to the article describing Jmol <ref>PMID:21638687</ref> to the rescue.
You may include any references to papers as in: the use of JSmol in Proteopedia <ref>DOI 10.1002/ijch.201300024</ref> or to the article describing Jmol <ref>PMID:21638687</ref> to the rescue.


== Function ==
== Function ==
Saporin is a ribosome-inactivating protein (RIP); alone, saporin does not selectively inactive ribosomes but rather conjugate with other molecules like peptides <ref name="basel">DOI:
 
10.3390/toxins12090546</ref>. Saponaria officinalis is the plant from which saporin is extracted <ref name="ncbi">DOI: 10.3390/toxins5101698</ref>. Type I and type II RIPS exist. Of these types, saporin is a type I. Ribosome inactivating proteins catalyze a cleavages N-glycosidic bond that is formed between the ribosome and adenine <ref name="rcsb">DOI: 10.1016/s0014-5793(00)01325-9</ref>. This adenine has the role of binding EF-1 and EF-2 to a ribosome <ref name="rcsb" />.  EF stands for elongation factor. Since adenine no longer has a bond to the ribosome, the elongation step in translation cannot occur because the elongation factors cannot bind to just the ribosome. The specific elongation factor that is inhibited is elongation factor 2, which causes irreversible damage and disallows protein synthesis <ref name="ncbi" />. 
== Disease ==
== Disease ==



Revision as of 17:54, 21 April 2022

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Jessica Dempsey