1a33
From Proteopedia
(New page: 200px<br /><applet load="1a33" size="450" color="white" frame="true" align="right" spinBox="true" caption="1a33, resolution 2.15Å" /> '''PEPTIDYLPROLYL ISOME...) |
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| - | [[Image:1a33.gif|left|200px]]<br /><applet load="1a33" size=" | + | [[Image:1a33.gif|left|200px]]<br /><applet load="1a33" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1a33, resolution 2.15Å" /> | caption="1a33, resolution 2.15Å" /> | ||
'''PEPTIDYLPROLYL ISOMERASE, CYCLOPHILIN-LIKE DOMAIN FROM BRUGIA MALAYI'''<br /> | '''PEPTIDYLPROLYL ISOMERASE, CYCLOPHILIN-LIKE DOMAIN FROM BRUGIA MALAYI'''<br /> | ||
==Overview== | ==Overview== | ||
| - | Cyclophilins are a family of proteins that exhibit peptidyl-prolyl | + | Cyclophilins are a family of proteins that exhibit peptidyl-prolyl cis-trans isomerase activity and bind the immunosuppressive agent cyclosporin A (CsA). Brugia malayi is a filarial nematode parasite of humans, for which a cyclophilin-like domain was identified at the N-terminal of a protein containing 843 amino acid residues. There are two differences in sequence in the highly conserved CsA binding site: A histidine and a lysine replace a tryptophan and an alanine, respectively. The crystal structure of this domain has been determined by the molecular replacement method and refined to an R-factor of 16.9% at 2.15 A resolution. The overall structure is similar to other cyclophilins; however, major differences occur in two loops. Comparison of the CsA binding site of this domain with members of the cyclophilin family shows significant structural differences, which can account for the reduced sensitivity of the Brugia malayi protein to inhibition by CsA. |
==About this Structure== | ==About this Structure== | ||
| - | 1A33 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Brugia_malayi Brugia malayi]. Active as [http://en.wikipedia.org/wiki/Peptidylprolyl_isomerase Peptidylprolyl isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.2.1.8 5.2.1.8] Full crystallographic information is available from [http:// | + | 1A33 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Brugia_malayi Brugia malayi]. Active as [http://en.wikipedia.org/wiki/Peptidylprolyl_isomerase Peptidylprolyl isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.2.1.8 5.2.1.8] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1A33 OCA]. |
==Reference== | ==Reference== | ||
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[[Category: Peptidylprolyl isomerase]] | [[Category: Peptidylprolyl isomerase]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
| - | [[Category: Carlow, C | + | [[Category: Carlow, C K.S.]] |
[[Category: Ma, D.]] | [[Category: Ma, D.]] | ||
[[Category: Mikol, V.]] | [[Category: Mikol, V.]] | ||
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[[Category: peptidylprolyl isomerase]] | [[Category: peptidylprolyl isomerase]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 11:40:16 2008'' |
Revision as of 09:40, 21 February 2008
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PEPTIDYLPROLYL ISOMERASE, CYCLOPHILIN-LIKE DOMAIN FROM BRUGIA MALAYI
Overview
Cyclophilins are a family of proteins that exhibit peptidyl-prolyl cis-trans isomerase activity and bind the immunosuppressive agent cyclosporin A (CsA). Brugia malayi is a filarial nematode parasite of humans, for which a cyclophilin-like domain was identified at the N-terminal of a protein containing 843 amino acid residues. There are two differences in sequence in the highly conserved CsA binding site: A histidine and a lysine replace a tryptophan and an alanine, respectively. The crystal structure of this domain has been determined by the molecular replacement method and refined to an R-factor of 16.9% at 2.15 A resolution. The overall structure is similar to other cyclophilins; however, major differences occur in two loops. Comparison of the CsA binding site of this domain with members of the cyclophilin family shows significant structural differences, which can account for the reduced sensitivity of the Brugia malayi protein to inhibition by CsA.
About this Structure
1A33 is a Single protein structure of sequence from Brugia malayi. Active as Peptidylprolyl isomerase, with EC number 5.2.1.8 Full crystallographic information is available from OCA.
Reference
Crystal structure of the cyclophilin-like domain from the parasitic nematode Brugia malayi., Mikol V, Ma D, Carlow CK, Protein Sci. 1998 Jun;7(6):1310-6. PMID:9655334
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