This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1qdq

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 12:25, 10 September 2015

X-RAY CRYSTAL STRUCTURE OF BOVINE CATHEPSIN B-CA074 COMPLEX

Structural highlights

1qdq is a 1 chain structure with sequence from Bos taurus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Activity:	Cathepsin B, with EC number 3.4.22.1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[CATB_BOVIN] Thiol protease which is believed to participate in intracellular degradation and turnover of proteins. Has also been implicated in tumor invasion and metastasis.

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 crystal structure of the bovine spleen cathepsin B (BSCB)-CA074 complex was refined to R = 0.152 using X-ray diffraction data up to 2.18 A resolution. BSCB is characterized by an extra Cys148-Cys252 disulfide bridge, as compared with rat and human CBs. Although the crystal structures of these enzymes showed similar overall folding, a difference was observed in the occluding loop, a structural element specific only to CB. Comparison of the torsion angles indicated the different flexibilities of their loop structures. The oxirane C6 atom of CA074 was covalently bonded to the Cys29 S(gamma) atom (C3-S(gamma)=1.81 A), where the S-configuration was transformed to the R-form. Concerning the oxirane carbon atom that participates in the covalent bonding with the Cys residue, an acceptable rule has been proposed. The substrate specificities at the Sn (n = 1-3) and Sn' (n=1 and 2) subsites of CB, together with the interaction features as to CA074, have been discussed in comparison with the crystal structure of the papain-CA028 (a CA074-related inhibitor) complex.

Substrate specificity of bovine cathepsin B and its inhibition by CA074, based on crystal structure refinement of the complex.,Yamamoto A, Tomoo K, Hara T, Murata M, Kitamura K, Ishida T J Biochem. 2000 Apr;127(4):635-43. PMID:10739956^[1]

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

References

↑ Yamamoto A, Tomoo K, Hara T, Murata M, Kitamura K, Ishida T. Substrate specificity of bovine cathepsin B and its inhibition by CA074, based on crystal structure refinement of the complex. J Biochem. 2000 Apr;127(4):635-43. PMID:10739956

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/1qdq"

@@ Line 5: / Line 5: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=074:[PROPYLAMINO-3-HYDROXY-BUTAN-1,4-DIONYL]-ISOLEUCYL-PROLINE'>074</scene></td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cathepsin_B Cathepsin B], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.22.1 3.4.22.1] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1qdq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qdq OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1qdq RCSB], [http://www.ebi.ac.uk/pdbsum/1qdq PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1qdq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qdq OCA], [http://pdbe.org/1qdq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1qdq RCSB], [http://www.ebi.ac.uk/pdbsum/1qdq PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 27: / Line 27: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1qdq" style="background-color:#fffaf0;"></div>
 ==See Also==

1qdq

From Proteopedia

Revision as of 12:25, 10 September 2015

X-RAY CRYSTAL STRUCTURE OF BOVINE CATHEPSIN B-CA074 COMPLEX

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox