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. 2022 May 25;10:851042. doi: 10.3389/fped.2022.851042

Figure 1.

Figure 1

The reference transcript for the SFTPB gene (green section) and the SP-B preprotein (red section). The SFTPB gene reference transcript ENSG00000168878 is composed of 11 exons, with dark green rectangles aligning the exons that encode the SP-B preprotein, which is composed of 381 amino acid residues (CCDS1983.2, red section below transcript). The mature SP-B protein contains amino acid residues at codons 201 to 279 (28, 29), and protein-encoding exons 6 and 7 are indicated by a large red rectangle. Three of the tagged SNPs (rs893159, rs2304566, and rs762548) are in the second exon encoding mature SP-B, and SNP rs9752 is at 3′UTR in the flanking arm of the preprotein (light green transcript rectangle). https://www.ncbi.nlm.nih.gov/gene/6439 (modified).