2hhd Summary

pdbe.org/2hhd
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OXYGEN AFFINITY MODULATION BY THE N-TERMINI OF THE BETA-CHAINS IN HUMAN AND BOVINE HEMOGLOBIN

The structure was published by Pechik, I., Ji, X., Fidelis, K., et al., Brinigar, W.S., Fronticelli, C., and Gilliland, G.L., in 1996 in a paper entitled "Crystallographic, molecular modeling, and biophysical characterization of the valine beta 67 (E11)-->threonine variant of hemoglobin." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.2 Å and deposited in 1994.

The experimental data on which the structure is based was not deposited.

This PDB entry contains a complex of 2 biomacromolecules, namely HEMOGLOBIN (DEOXY) (ALPHA CHAIN) and HEMOGLOBIN (DEOXY) (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 HEMOGLOBIN (DEOXY) (ALPHA CHAIN) P69905 (2-142) (HBA_HUMAN)search Homo sapienssearch 98% 141 100%
C HEMOGLOBIN (DEOXY) (ALPHA CHAIN) P69905 (2-142) (HBA_HUMAN)search Homo sapienssearch 98% 141 100%
B HEMOGLOBIN (DEOXY) (BETA CHAIN) P68871 (2-147) (HBB_HUMAN)search Homo sapienssearch 98% 146 100%
D HEMOGLOBIN (DEOXY) (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 (2 - 142) HEMOGLOBIN (DEOXY) (ALPHA CHAIN) Homo sapiens
P68871 (2 - 147) HEMOGLOBIN (DEOXY) (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 oxygen transporter activitysearch peroxidase activitysearch metal ion bindingsearch haptoglobin bindingsearch oxygen transportsearch bicarbonate transportsearch protein heterooligomerizationsearch hydrogen peroxide catabolic processsearch response to hydrogen peroxidesearch transportsearch oxidation-reduction processsearch small molecule metabolic processsearch positive regulation of cell deathsearch cytosolsearch cytosolic small ribosomal subunitsearch membranesearch extracellular vesicular exosomesearch blood microparticlesearch hemoglobin complexsearch haptoglobin-hemoglobin complexsearch extracellular regionsearch endocytic vesicle lumensearch
B, D (P68871) iron ion bindingsearch heme bindingsearch oxygen bindingsearch metal ion bindingsearch protein bindingsearch oxygen transporter activitysearch hemoglobin bindingsearch peroxidase activitysearch haptoglobin bindingsearch oxygen transportsearch hydrogen peroxide catabolic processsearch transportsearch bicarbonate transportsearch blood coagulationsearch oxidation-reduction processsearch response to hydrogen peroxidesearch regulation of blood vessel sizesearch protein heterooligomerizationsearch renal absorptionsearch small molecule metabolic processsearch positive regulation of nitric oxide biosynthetic processsearch regulation of blood pressuresearch nitric oxide transportsearch positive regulation of cell deathsearch extracellular regionsearch blood microparticlesearch haptoglobin-hemoglobin complexsearch hemoglobin complexsearch extracellular vesicular exosomesearch cytosolsearch 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