Hemoglobin subunit beta

Basic Information
Short Name	HBB
UNP ID	P68871
Organism	Homo sapiens
Cys Site	Cys94
Family/Domain	Globin family
Known Ligand	Ligand list
Function Type	Transporter

Summary

Protein Function

Beta globin (also referred to as HBB, β-globin, haemoglobin beta, hemoglobin beta, or preferably haemoglobin subunit beta) is a globin protein, which along with alpha globin (HBA), makes up the most common form of haemoglobin in adult humans, the HbA. It is 146 amino acids long and has a molecular weight of 15,867 Da. Normal adult human HbA is a heterotetramer consisting of two alpha chains and two beta chains.
HBB is encoded by the HBB gene on human chromosome 11. Mutations in the gene produce several variants of the proteins which are implicated with genetic disorders such as sickle-cell disease and beta thalassemia, as well as beneficial traits such as genetic resistance to malaria. (From Wikipedia)

Cys Function & Property

Cys94 is besides the metal binding site of HBB, His93.

• Hydrophobic property:

• SASA：

Cys94: 7.012 A^2

Protein Sequence

MVHLTPEEKS AVTALWGKVN VDEVGGEALG RLLVVYPWTQ RFFESFGDLS
TPDAVMGNPK VKAHGKKVLG AFSDGLAHLD NLKGTFATLS ELHCDKLHVD
PENFRLLGNV LVCVLAHHFG KEFTPPVQAA YQKVVAGVAN ALAHKYH

Structural Information

• Known structure with covalent ligand:
  

Unknown

• Protein structure:

Related Pathway

• African trypanosomiasis
  
• Malaria
  

Experimental Evidence

FTIR spectra, Electrospray Mass Spectra

Reference

1. Romeo A A, Filosa A, Capobianco J A, et al. Metal chelators inhibit S-nitrosation of Cysβ93 in oxyhemoglobin[J]. Journal of the American Chemical Society, 2001, 123(8): 1782-1783. 11456789