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. 2013 Mar 19;8(3):e59421. doi: 10.1371/journal.pone.0059421

Figure 1. The schematic diagram of TNF-α −308G>A.

Figure 1

In this graph, SNP rs1800629 locates on 5' upstream promoter region of TNF-α gene. “+1″ means the transcription initiation site, “ATG” represents the start codon, and “E1”, “E2”, “E3”, “E4” are 4 exons of TNF-α gene.