ISDA

Entry Detail

PDB ID:

4M4B

Keywords:

OXYGEN TRANSPORT

Title:

Human Hemoglobin Nitroethane Modified

Biological Source:

Source Organism:

Homo sapiens

PDB Version:

Deposition Date:

2013-08-06

Release Date:

2014-07-16

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Free:

0.27

R-Value Work:

0.22

R-Value Observed:

0.23

Space Group:

P 41 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Hemoglobin subunit alpha
Chain IDs:A
Chain Length:141
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P69905 Pfam ID:PF00042

Protein Blast

Polymer Type:polypeptide(L)
Description:Hemoglobin subunit beta
Chain IDs:B
Chain Length:146
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P68871 Pfam ID:PF00042

Ligand Molecules

GOL

HEM

NOE

Primary Citation

Degradation of human hemoglobin by organic C-nitroso compounds.

Yi, J, Ye, G, Thomas, L.M, Richter-Addo, G.B.Show

Chem.Commun.(Camb.) 49 11179 11181 (2013)

PMID: 24149619 DOI: 10.1039/c3cc46174b

Abstact

The crystal structure of the nitrosomethane adduct of human Hb shows N-binding of the MeNO ligands to heme Fe. The structure of the EtNO adduct reveals a surprising 4.9 Å heme slippage in the β subunit, and explains the ability of C-nitroso compounds to degrade Hb removing it from circulation.

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Protein

Chemical

Disease

Primary Citation of related structures