1jps

From Proteopedia

(Difference between revisions)

Revision as of 06:55, 10 July 2019

Crystal structure of tissue factor in complex with humanized Fab D3h44

Structural highlights

1jps is a 3 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1jpt, 2hft
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[TF_HUMAN] Initiates blood coagulation by forming a complex with circulating factor VII or VIIa. The [TF:VIIa] complex activates factors IX or X by specific limited protolysis. TF plays a role in normal hemostasis by initiating the cell-surface assembly and propagation of the coagulation protease cascade.^[1]

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 outstanding importance of the antigen-antibody recognition process for the survival and defence strategy of higher organisms is in sharp contrast to the limited high resolution structural data available on antibody-antigen pairs with antigenic proteins. The limitation is the most severe for structural data not restricted to the antigen-antibody complex but extending to the uncomplexed antigen and antibody. We report the crystal structure of the complex between tissue factor (TF) and the humanized Fab fragment D3h44 at a resolution of 1.85 A together with the structure of uncomplexed D3h44 at the same resolution. In conjunction with the previously reported 1.7 A crystal structure of uncomplexed TF, a unique opportunity is generated to explore details of the recognition process. The TF.D3h44 interface is characterised by a high number of polar interactions, including as may as 46 solvent molecules. Conformational changes upon complex formation are very small and almost exclusively limited to the reorientation of side-chains. The binding epitope is in complete agreement with earlier mutagenesis experiments. A revaluation of two other antibody-antigen pairs reported at similar resolutions, shows that all these complexes are very similar with respect to the solvation of the interface, the number of solvent positions conserved in the uncomplexed and complexed proteins and the number of water molecules expelled from the surface and replaced by hydrophilic atoms from the binding partner upon complex formation. A strategy is proposed on how to exploit this high resolution structural data to guide the affinity maturation of humanised antibodies.

The 1.85 A resolution crystal structures of tissue factor in complex with humanized Fab D3h44 and of free humanized Fab D3h44: revisiting the solvation of antigen combining sites.,Faelber K, Kirchhofer D, Presta L, Kelley RF, Muller YA J Mol Biol. 2001 Oct 12;313(1):83-97. PMID:11601848^[2]

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

References

↑ Bogdanov VY, Balasubramanian V, Hathcock J, Vele O, Lieb M, Nemerson Y. Alternatively spliced human tissue factor: a circulating, soluble, thrombogenic protein. Nat Med. 2003 Apr;9(4):458-62. Epub 2003 Mar 24. PMID:12652293 doi:10.1038/nm841
↑ Faelber K, Kirchhofer D, Presta L, Kelley RF, Muller YA. The 1.85 A resolution crystal structures of tissue factor in complex with humanized Fab D3h44 and of free humanized Fab D3h44: revisiting the solvation of antigen combining sites. J Mol Biol. 2001 Oct 12;313(1):83-97. PMID:11601848 doi:10.1006/jmbi.2001.5036

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/1jps"

@@ Line 1: / Line 1: @@
 ==Crystal structure of tissue factor in complex with humanized Fab D3h44==
-<StructureSection load='1jps' size='340' side='right' caption='[[1jps]], [[Resolution|resolution]] 1.85&Aring;' scene=''>
+<StructureSection load='1jps' size='340' side='right'caption='[[1jps]], [[Resolution|resolution]] 1.85&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1jps]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JPS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1JPS FirstGlance]. <br>
@@ Line 13: / Line 13: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/jp/1jps_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/jp/1jps_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 30: / Line 30: @@
 ==See Also==
+*[[Antibody 3D structures|Antibody 3D structures]]
 *[[Tissue factor|Tissue factor]]
-*[[3D structures of antibody|3D structures of antibody]]
 == References ==
 <references/>
@@ Line 37: / Line 37: @@
 </StructureSection>
 [[Category: Human]]
+[[Category: Large Structures]]
 [[Category: Faelber, K]]
 [[Category: Kelley, R F]]

1jps

From Proteopedia

Revision as of 06:55, 10 July 2019

Crystal structure of tissue factor in complex with humanized Fab D3h44

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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