The coding sequence for the human 18,000-dalton hydrophobic pulmonary surfactant protein is located on chromosome 2 and identifies a restriction fragment length polymorphism.
The 18-kd hydrophobic pulmonary surfactant protein (PSP-B) is a developmentally regulated protein which is important for normal lung function. A complementary DNA probe for 221 NH2 terminal amino acids of PSP-B was used to determine the chromosomal location of this gene and identify a restriction fragment length polymorphism (RFLP). Southern blot hybridization to genomic DNA isolated from a panel of human-CHO somatic cell hybrids unambiguously maps this gene to chromosome 2. Human DNA cut with BamHI yields a RFLP with variable bands at 2.8 and 2.6 kb. Since there is a relative lack of polymorphic markers for chromosome 2, this sequence may be useful in linkage analysis.
D000818:Animals; D002874:Chromosome Mapping; D002889:Chromosomes, Human, Pair 2; D006224:Cricetinae; D003412:Cricetulus; D005819:Genetic Markers; D006801:Humans; D006822:Hybrid Cells; D008970:Molecular Weight; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length; D011510:Proteolipids / Q000235:genetics*; D037661:Pulmonary Surfactant-Associated Proteins; D011663:Pulmonary Surfactants / Q000235:genetics*
D005819:Genetic Markers; D011510:Proteolipids; D037661:Pulmonary Surfactant-Associated Proteins; D011663:Pulmonary Surfactants