1h75

<StructureSection load='1h75' size='340' side='right' caption='[[1h75]], [[Resolution|resolution]] 1.70&Aring;' scene=''>

<table><tr><td colspan='2'>[[1h75]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H75 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1H75 FirstGlance]. <br>

</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=1h75 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h75 OCA], [http://pdbe.org/1h75 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1h75 RCSB], [http://www.ebi.ac.uk/pdbsum/1h75 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1h75 ProSAT]</span></td></tr>

[[http://www.uniprot.org/uniprot/NRDH_ECOLI NRDH_ECOLI]] Electron transport system for the ribonucleotide reductase system NrdEF.

<div style="background-color:#fffaf0;">

== Publication Abstract from PubMed ==

NrdH-redoxin is a representative of a class of small redox proteins that contain a conserved CXXC motif and are characterized by a glutaredoxin-like amino acid sequence and thioredoxin-like activity profile. The crystal structure of recombinant Escherichia coli NrdH-redoxin in the oxidized state has been determined at 1.7 A resolution by multiwavelength anomalous diffraction. NrdH-redoxin belongs to the thioredoxin superfamily and is structurally most similar to E. coli glutaredoxin 3 and phage T4 glutaredoxin. The angle between the C-terminal helix alpha3 and strand beta4, which differs between thioredoxin and glutaredoxin, has an intermediate value in NrdH-redoxin. The orientation of this helix is to a large extent determined by an extended hydrogen-bond network involving the highly conserved sequence motif (61)WSGFRP(D/E)(67), which is unique to this subclass of the thioredoxin superfamily. Residues that bind glutathione in glutaredoxins are in general not conserved in NrdH-redoxin, and no glutathione-binding cleft is present. Instead, NrdH-redoxin contains a wide hydrophobic pocket at the surface, similar to thioredoxin. Modeling studies suggest that NrdH-redoxin can interact with E. coli thioredoxin reductase at this pocket and also via a loop that is complementary to a crevice in the reductase in a similar manner as observed in the E. coli thioredoxin-thioredoxin reductase complex.

Structural basis for the thioredoxin-like activity profile of the glutaredoxin-like NrdH-redoxin from Escherichia coli.,Stehr M, Schneider G, Aslund F, Holmgren A, Lindqvist Y J Biol Chem. 2001 Sep 21;276(38):35836-41. Epub 2001 Jul 5. PMID:11441020<ref>PMID:11441020</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

</div>

<div class="pdbe-citations 1h75" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Bacillus coli migula 1895]]

[[Category: Aslund, F]]

[[Category: Holmgren, A]]

[[Category: Lindqvist, Y]]

[[Category: Schneider, G]]

[[Category: Stehr, M]]

[[Category: Thioredoxin]]