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Figure 4 | BMC Genomics

Figure 4

From: Identification of G protein-coupled receptor signaling pathway proteins in marine diatoms using comparative genomics

Figure 4

Structure and size of putative diatom GPCRs. A reference structure for a mammalian class C GPCR is provided for comparison. Conserved domains are boxed and include: PBP1, periplasmic binding protein domain which is considered to be the evolutionary origin of the class C GPCR ligand binding domain; 7tm_3, seven transmembrane domain of class C GPCRs; 5-nucleotide-C, associated with enzymatic degradation of sugars; Cache 1, extracellular protein domain involved in recognition of small molecules. TMD, transmembrane domain.

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