Macromolecule Content

Total Structure Weight: 32.40 kDa
Atom Count: 2291
Residue Count: 287
Unique protein chains: 2

2MHB

THE STRUCTURE OF HORSE METHAEMOGLOBIN AT 2.0 ANGSTROMS RESOLUTION

DOI: 10.2210/pdb2MHB/pdb
Entry: 2MHB supersedes: 1MHB

Classification: OXYGEN TRANSPORT
Organism(s): Equus caballus
Mutation(s): No

Deposited: 1977-02-14 Released: 1983-01-20
Deposition Author(s): Ladner, R.C., Heidner, E.G., Perutz, M.F.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Work: 0.230
R-Value Observed: 0.230

wwPDB Validation3D Report Full Report

This is version 1.3 of the entry. See complete history.

Literature

The structure of horse methaemoglobin at 2-0 A resolution.

Ladner, R.C., Heidner, E.J., Perutz, M.F.

(1977) J Mol Biol 114: 385-414

PubMed: 561852 Search on PubMed
DOI: 10.1016/0022-2836(77)90256-x
Primary Citation of Related Structures:
2MHB

Macromolecules

Find similar proteins by:

(by identity cutoff) | Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HEMOGLOBIN (AQUO MET) (ALPHA CHAIN)	A	141	Equus caballus	Mutation(s): 0 Gene Names: HBA
Find proteins for P01958 (Equus caballus) Explore P01958 Go to UniProtKB: P01958
Protein Feature View Expand
( Mouse scroll to zoom / Hold left click to move ) Reference Sequence

Find similar proteins by:

(by identity cutoff) | Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
HEMOGLOBIN (AQUO MET) (BETA CHAIN)	B	146	Equus caballus	Mutation(s): 0 Gene Names: HBB
Find proteins for P02062 (Equus caballus) Explore P02062 Go to UniProtKB: P02062
Protein Feature View Expand
( Mouse scroll to zoom / Hold left click to move ) Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
HEM Query on HEM Download CCD File	A, B	PROTOPORPHYRIN IX CONTAINING FE C₃₄ H₃₂ Fe N₄ O₄ KABFMIBPWCXCRK-RGGAHWMASA-L		Ligand Interaction

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Work: 0.230
R-Value Observed: 0.230
Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 108.24	α = 90
b = 63.13	β = 110.85
c = 54.54	γ = 90

Structure Validation

View Full Validation Report

Entry History

Deposition Data

Deposited Date: 1977-02-14
Released Date: 1983-01-20

Deposition Author(s):

This entry supersedes: 1MHB

Revision History

Version 1.0: 1983-01-20
Type: Initial release
Version 1.1: 2008-03-03
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Version format compliance
Version 1.3: 2012-11-28
Changes: Other

RCSB PDB is funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.