1bz1 Summary

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HEMOGLOBIN (ALPHA + MET) VARIANT

The structure was published by Hui, H.L., Kavanaugh, J.S., Doyle, M.L., et al., Holt, J.M., Ackers, G.K., and Noble, R.W., in 1999 in a paper entitled "Structural and functional properties of human hemoglobins reassembled after synthesis in Escherichia coli." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.59 Å and deposited in 1998.

The experimental data on which the structure is based was also deposited.

This PDB entry contains a complex of 2 biomacromolecules, namely PROTEIN (HEMOGLOBIN ALPHA CHAIN) and PROTEIN (HEMOGLOBIN BETA CHAIN).

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule most likely forms heterotetramers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A PROTEIN (HEMOGLOBIN ALPHA CHAIN) P69905 (1-142) (HBA_HUMAN)search Homo sapienssearch 98% 142 100%
C PROTEIN (HEMOGLOBIN ALPHA CHAIN) P69905 (1-142) (HBA_HUMAN)search Homo sapienssearch 98% 142 100%
B PROTEIN (HEMOGLOBIN BETA CHAIN) P68871 (2-147) (HBB_HUMAN)search Homo sapienssearch 98% 146 100%
D PROTEIN (HEMOGLOBIN BETA CHAIN) P68871 (2-147) (HBB_HUMAN)search Homo sapienssearch 98% 146 100%


This entry contains 2 unique UniProt proteins:

UniProt accession Name Organism PDB
P69905 (1 - 142) PROTEIN (HEMOGLOBIN ALPHA CHAIN) Homo sapiens
P68871 (2 - 147) PROTEIN (HEMOGLOBIN BETA CHAIN) Homo sapiens

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A, C (P69905) Globinssearch Globinssearch PF00042: Globinsearch
B, D (P68871) Globinssearch Globinssearch PF00042: Globinsearch

Chain ID Molecular function (GO) Biological process (GO) Cellular component (GO)
A, C (P69905) oxygen bindingsearch iron ion bindingsearch heme bindingsearch protein bindingsearch peroxidase activitysearch metal ion bindingsearch haptoglobin bindingsearch oxygen transporter activitysearch oxygen transportsearch protein heterooligomerizationsearch bicarbonate transportsearch hydrogen peroxide catabolic processsearch transportsearch oxidation-reduction processsearch small molecule metabolic processsearch response to hydrogen peroxidesearch positive regulation of cell deathsearch hemoglobin complexsearch extracellular regionsearch extracellular vesicular exosomesearch cytosolsearch haptoglobin-hemoglobin complexsearch endocytic vesicle lumensearch membranesearch cytosolic small ribosomal subunitsearch blood microparticlesearch
B, D (P68871) oxygen transporter activitysearch protein bindingsearch hemoglobin bindingsearch oxygen bindingsearch peroxidase activitysearch metal ion bindingsearch heme bindingsearch haptoglobin bindingsearch iron ion bindingsearch oxygen transportsearch regulation of blood vessel sizesearch hydrogen peroxide catabolic processsearch positive regulation of nitric oxide biosynthetic processsearch oxidation-reduction processsearch bicarbonate transportsearch transportsearch blood coagulationsearch response to hydrogen peroxidesearch platelet aggregationsearch renal absorptionsearch protein heterooligomerizationsearch regulation of blood pressuresearch small molecule metabolic processsearch nitric oxide transportsearch positive regulation of cell deathsearch hemoglobin complexsearch blood microparticlesearch cytosolsearch extracellular regionsearch extracellular vesicular exosomesearch haptoglobin-hemoglobin complexsearch endocytic vesicle lumensearch

Chain InterPro annotation
A, C Globinsearch Haemoglobin, alphasearch Haemoglobin, pisearch Globin-likesearch Globin, structural domainsearch
B, D Globinsearch Haemoglobin, betasearch Globin-likesearch Globin, structural domainsearch