Crystallization and preliminary X-ray crystallographic analysis of the 30 kDa membrane-­binding domain of protein 4.1 from human erythrocytes

The 30 kDa membrane-binding domain of protein 4.1 from human erythrocytes has been expressed in Escherichia coli and crystallized in a form suitable for X-ray crystallographic study. Crystals were grown using a salting-in technique. Crystals have a tetragonal plate shape and belong to the C2 space group, with unit-cell parameters a = 163.9, b = 106.5, c = 93.5 Å, β = 95.5°. The crystals diffract to 2.8 Å resolution.