1HSR

BINDING MODE OF BENZHYDROXAMIC ACID TO ARTHROMYCES RAMOSUS PEROXIDASE

Summary for 1HSR

• Entry DOI: 10.2210/pdb1hsr/pdb
• Descriptor: PEROXIDASE, 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose, CALCIUM ION, ... (6 entities in total)
• Functional Keywords: oxidoreductase, glycoprotein, peroxidase
• Biological source: 'Arthromyces ramosus'
• Cellular location: Secreted: P28313
• Total number of polymer chains: 1
• Total formula weight: 36980.98

Authors

Fukuyama, K.,Itakura, H. (deposition date: 1997-07-01, release date: 1998-07-01, Last modification date: 2024-11-06)

Primary citation

Itakura, H.,Oda, Y.,Fukuyama, K.
Binding mode of benzhydroxamic acid to Arthromyces ramosus peroxidase shown by X-ray crystallographic analysis of the complex at 1.6 A resolution.
FEBS Lett., 412:107-110, 1997

PubMed Abstract: The crystal structure of Arthromyces ramosus peroxidase (ARP) in complex with benzhydroxamic acid (BHA) as determined by X-ray analysis at 1.6 A shows unambiguously how BHA binds to ARP. BHA is located in the distal heme pocket. Its functional groups are held by three hydrogen bonds to His56N(epsilon), Arg52N(epsilon), and Pro(154)O, but are too far away to interact with the heme iron. The aromatic ring of BHA is positioned at the entrance of the channel to the heme pocket, approximately parallel to the heme group. Most water molecules at the active site of the native enzyme are replaced by BHA, leaving a ligand, probably a water molecule, at the sixth position of the heme. Results are compared with spectroscopic data.

PubMed: 9257700
DOI: 10.1016/S0014-5793(97)00751-5

Experimental method

X-RAY DIFFRACTION (1.6 Å)