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1tco

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Revision as of 14:30, 18 December 2019

TERNARY COMPLEX OF A CALCINEURIN A FRAGMENT, CALCINEURIN B, FKBP12 AND THE IMMUNOSUPPRESSANT DRUG FK506 (TACROLIMUS)

Structural highlights

1tco is a 3 chain structure with sequence from Bovin. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , ,
Activity:	Phosphoprotein phosphatase, with EC number 3.1.3.16
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PP2BA_BOVIN] Calcium-dependent, calmodulin-stimulated protein phosphatase. This subunit may have a role in the calmodulin activation of calcineurin. Dephosphorylates DNM1L, HSPB1 and SSH1 (By similarity). [FKB1A_HUMAN] Keeps in an inactive conformation TGFBR1, the TGF-beta type I serine/threonine kinase receptor, preventing TGF-beta receptor activation in absence of ligand. Recruites SMAD7 to ACVR1B which prevents the association of SMAD2 and SMAD3 with the activin receptor complex, thereby blocking the activin signal. May modulate the RYR1 calcium channel activity. PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides.^[1] ^[2] [CANB1_BOVIN] Regulatory subunit of calcineurin, a calcium-dependent, calmodulin stimulated protein phosphatase. Confers calcium sensitivity.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The X-ray structure of the ternary complex of a calcineurin A fragment, calcineurin B, FKBP12, and the immunosuppressant drug FK506 (also known as tacrolimus) has been determined at 2.5 A resolution, providing a description of how FK506 functions at the atomic level. In the structure, the FKBP12-FK506 binary complex does not contact the phosphatase active site on calcineurin A that is more than 10 A removed. Instead, FKBP12-FK506 is so positioned that it can inhibit the dephosphorylation of its macromolecular substrates by physically hindering their approach to the active site. The ternary complex described here represents the three-dimensional structure of a Ser/Thr protein phosphatase and provides a structural basis for understanding calcineurin inhibition by FKBP12-FK506.

X-ray structure of calcineurin inhibited by the immunophilin-immunosuppressant FKBP12-FK506 complex.,Griffith JP, Kim JL, Kim EE, Sintchak MD, Thomson JA, Fitzgibbon MJ, Fleming MA, Caron PR, Hsiao K, Navia MA Cell. 1995 Aug 11;82(3):507-22. PMID:7543369^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Chen YG, Liu F, Massague J. Mechanism of TGFbeta receptor inhibition by FKBP12. EMBO J. 1997 Jul 1;16(13):3866-76. PMID:9233797 doi:10.1093/emboj/16.13.3866
↑ Yamaguchi T, Kurisaki A, Yamakawa N, Minakuchi K, Sugino H. FKBP12 functions as an adaptor of the Smad7-Smurf1 complex on activin type I receptor. J Mol Endocrinol. 2006 Jun;36(3):569-79. PMID:16720724 doi:10.1677/jme.1.01966
↑ Griffith JP, Kim JL, Kim EE, Sintchak MD, Thomson JA, Fitzgibbon MJ, Fleming MA, Caron PR, Hsiao K, Navia MA. X-ray structure of calcineurin inhibited by the immunophilin-immunosuppressant FKBP12-FK506 complex. Cell. 1995 Aug 11;82(3):507-22. PMID:7543369

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1tco"

@@ Line 1: / Line 1: @@
 ==TERNARY COMPLEX OF A CALCINEURIN A FRAGMENT, CALCINEURIN B, FKBP12 AND THE IMMUNOSUPPRESSANT DRUG FK506 (TACROLIMUS)==
-<StructureSection load='1tco' size='340' side='right' caption='[[1tco]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
+<StructureSection load='1tco' size='340' side='right'caption='[[1tco]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1tco]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Bovin Bovin]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TCO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1TCO FirstGlance]. <br>
@@ Line 31: / Line 31: @@
 ==See Also==
-*[[Calcineurin|Calcineurin]]
+*[[Calcineurin 3D structures|Calcineurin 3D structures]]
 *[[FK506 binding protein|FK506 binding protein]]
 == References ==
@@ Line 38: / Line 38: @@
 </StructureSection>
 [[Category: Bovin]]
+[[Category: Large Structures]]
 [[Category: Phosphoprotein phosphatase]]
 [[Category: Caron, P R]]

1tco

From Proteopedia

Revision as of 14:30, 18 December 2019

TERNARY COMPLEX OF A CALCINEURIN A FRAGMENT, CALCINEURIN B, FKBP12 AND THE IMMUNOSUPPRESSANT DRUG FK506 (TACROLIMUS)

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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