Claim: Integrin alpha 5 is a protein, or large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues, that in humans is encoded by the ITGA5 gene and and in which the product of such belongs to the integrin alpha chain family.
Evidence: Integrin alpha-5 is a protein that in humans is encoded by the ITGA5 gene. 
Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. 
The product of this gene belongs to the integrin alpha chain family.