 This study investigated the association between single nucleotide polymorphisms, SNPs, in the SUMF1 gene and chronic obstructive pulmonary disease, copped. The results suggest that certain SNPs in the SUMF1 gene are associated with reduced lung function and increased risk of developing copped. Furthermore, these SNPs may contribute to the development of copped by affecting the sulfation balance in the extracellular matrix of the lung tissue. This article was authored by Linnea Jarenback, Sophia Frantz, Julie Weidner, and others.