Serpin: Difference between revisions

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<StructureSection load='3ndd' size='400' side='right' caption='Structure of cleaved human serpin A1 (PDB entry [[3ndd]])' scene=''>
<StructureSection load='2xn6' size='350' side='right' caption='Structure of cleaved human serpin A7.  Residues 32-380 (cyan), residues 381-415 (salmon) complex with thyroxine-fluoresein, ethylene glycol and Ca+2 ion (green) (PDB entry [[2xn6]])' scene='51/517379/Cv/1'>
== Function ==
'''Serpin or serine protease inhibitor''' (Ser) are protease inhibitors.<br />
* Ser C1 is [[Antithrombin]].<br />
* Ser A5 is protein C inhibitor.<br />
* Ser A6 is [[Corticosteroid-binding globulin]]. <br />
* Ser A8 is angiotensinogen. <br />
* Ser A7 is a thyroxine-binding globulin.<br />
* Ser B1 is leukocyte elastase inhibitor<ref>PMID:26701651</ref>.<br />
* Ser B3 is squamos cell carcinoma antigen 1<ref>PMID:20527027</ref>. <br />
* Ser B5 is Maspin<ref>PMID:11309327</ref>.<br />
* Ser crmA is cysteine and serine proteinase inhibitor<ref>PMID:9065443</ref>.<br />
* Ser I1 is neuroserpin. <br />
* Ser A10 is protein Z-related protease inhibitor. <br />
* Ser A1 is [[Alpha-1-antitrypsin]]. <br />
* Ser A3 is α 1-antichymotrypsin.<br />
* Ser E1 is [[Plasminogen activator inhibitor]]. 


'''Serpin or serine protease inhibitor''' (Ser) are protease inhibitors.  Ser E1 is antithrombin.  Ser C1 is  antithrombin .  Ser A5 is protein C inhibitor.  Ser A6 is a cortisol-binding globulin.  Ser A8 is angiotensinogen.    Ser A7 is a thyroxine-binding globulin.  Ser B3 is squamos cell carcinoma antigen 1.  Ser I1 is neuroserpin. Ser A10 is protein Z-related protease inhibitor.  Ser A1 is alpha-1 antitrypsin.   Ser E1 is plasminogen activator inhibitor 1.
== Disease ==
Mutation in Ser A7 causes partial thyroxine-binding globulin deficiency<ref>PMID:24356794</ref>.  Ser B3 may contribute to tumor cell resistance to anti-neoplastic drugs<ref>PMID:25332258</ref>.  Ser A3 promotes growth of endometrial cancer cells <ref>PMID:24817931</ref>.
 
==Structural highlights ==
Ser A7 - a thyrosine-binding globulin - <scene name='51/517379/Cv/3'>binding site contains thyroxin derivative</scene><ref>PMID:21325280</ref>. Water molecules are shown as red spheres.  


==3D structures of serpin==
==3D structures of serpin==
[[Serpin 3D structures]]


===Ser===
</StructureSection>
 
[[1mtp]], [[1sng]] – Ser – ''Thermobifida fusca''
 
===Ser A1===
 
[[Alpha-1-antitrypsin]]
 
===Ser A5===
 
[[2ol2]] – hSer-A5<br />
[[3dy0]] – hSer-A5 + heparin
 
===Ser A6===
 
[[2v95]] – rSer-A6 – rat<br />
[[2vdx]] – hSer-A6 (mutant) <br />
‪[[2vdx]] – hSer-A6 (mutant) + cortisol‬
 
===Ser A7===
 
[[2riv]] – hSer-A7<br />
[[2riw]] – hSer-A7 + thyroxine<br />
[[2xn3]] – hSer-A7 + mefenamic acid<br />
[[2xn5]] – hSer-A7 + furosemide<br />
[[2xn6]], [[2xn7]] – hSer-A7 + thyroxine-fluoresein
 
===Ser A8===
 
[[2jp8]] – hSer-A8 – NMR<br />
[[2wxw]] – hSer-A8<br />
[[2x0b]] – hSer-A8 + renin<br />
[[2wxx]], [[2wxy]], [[2wy0]] – Ser-A8 – mouse<br />
[[2wxz]], [[2wy1]] – rSer-A8
 
===Ser A10===
 
[[3h5c]], [[3f1s]] – hSer-A10 + vitamin K-dependent protein Z
 
===Ser B3===
 
[[2zv6]] – hSer-B3
 
===Ser C1===
 
[[Antithrombin]]
 
===Ser E1===
 
[[Plasminogen activator inhibitor]]
 
===Ser E2===
 
[[4dy0]] – hSer-E2 + heparin
 
===Ser-I1===
 
[[3fgq]], [[2f02]], [[3f5n]] – hSer-I1
 
===Ser K===
 
[[1sek]] – ThSer-K – Tobacco hornworm
 
===Ser 1===


[[1k9o]] – ThSer-1 (mutant) + trypsin II<br />
== References ==
[[3le2]] – Ser-1 – ''Arabidopsis thaliana''
<references/>  
 
===Ser 2===
 
[[1m93]] – Ser-2 – Cowpox virus<br />
[[3nda]] – Ser-2 – Sheep tick<br />
[[3pzf]] – Ser-2 – malaria mosquito
 
===Maspin===
 
[[1xqg]], [[1xqj]], [[1wz9]], [[1xu8]] - hMapsin
 
 
 
</StructureSection>
[[Category:Topic Page]]
[[Category:Topic Page]]

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky