1y5y

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 1: Line 1:
-
[[Image:1y5y.gif|left|200px]]
+
{{Seed}}
 +
[[Image:1y5y.png|left|200px]]
<!--
<!--
Line 9: Line 10:
{{STRUCTURE_1y5y| PDB=1y5y | SCENE= }}
{{STRUCTURE_1y5y| PDB=1y5y | SCENE= }}
-
'''Structure of the tetrahydromethanopterin dependent formaldehyde-activating enzyme (Fae) from Methylobacterium extorquens AM1'''
+
===Structure of the tetrahydromethanopterin dependent formaldehyde-activating enzyme (Fae) from Methylobacterium extorquens AM1===
-
==Overview==
+
<!--
-
Tetrahydromethanopterin (H4 MPT) is a tetrahydrofolate analogue involved as a C1 carrier in the metabolism of various groups of microorganisms. How H4MPT is bound to the respective C1 unit converting enzymes remained elusive. We describe here the structure of the homopentameric formaldehyde-activating enzyme (Fae) from Methylobacterium extorquens AM1 established at 2.0 angstrom without and at 1.9 angstrom with methylene-H4MPT bound. Methylene-H4MPT is bound in an "S"-shaped conformation into the cleft formed between two adjacent subunits. Coenzyme binding is accompanied by side chain rearrangements up to 5 angstrom and leads to a rigidification of the C-terminal arm, a formation of a new hydrophobic cluster, and an inversion of the amide side chain of Gln88. Methylene-H4MPT in Fae shows a characteristic kink between the tetrahydropyrazine and the imidazolidine rings of 70 degrees that is more pronounced than that reported for free methylene-H4MPT in solution (50 degrees). Fae is an essential enzyme for energy metabolism and formaldehyde detoxification of this bacterium and catalyzes the formation of methylene-H4MPT from H4MPT and formaldehyde. The molecular mechanism ofthis reaction involving His22 as acid catalyst is discussed.
+
The line below this paragraph, {{ABSTRACT_PUBMED_15632161}}, adds the Publication Abstract to the page
 +
(as it appears on PubMed at http://www.pubmed.gov), where 15632161 is the PubMed ID number.
 +
-->
 +
{{ABSTRACT_PUBMED_15632161}}
==About this Structure==
==About this Structure==
Line 32: Line 36:
[[Category: Flexible c-terminus]]
[[Category: Flexible c-terminus]]
[[Category: Pentamer]]
[[Category: Pentamer]]
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 15:54:47 2008''
+
 
 +
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 00:13:49 2008''

Revision as of 21:13, 27 July 2008

Image:1y5y.png

Template:STRUCTURE 1y5y

Structure of the tetrahydromethanopterin dependent formaldehyde-activating enzyme (Fae) from Methylobacterium extorquens AM1

Template:ABSTRACT PUBMED 15632161

About this Structure

1Y5Y is a Single protein structure of sequence from Thermomicrobium roseum. Full crystallographic information is available from OCA.

Reference

How an enzyme binds the C1 carrier tetrahydromethanopterin. Structure of the tetrahydromethanopterin-dependent formaldehyde-activating enzyme (Fae) from Methylobacterium extorquens AM1., Acharya P, Goenrich M, Hagemeier CH, Demmer U, Vorholt JA, Thauer RK, Ermler U, J Biol Chem. 2005 Apr 8;280(14):13712-9. Epub 2005 Jan 4. PMID:15632161

Page seeded by OCA on Mon Jul 28 00:13:49 2008

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1y5y"
Personal tools