| 1GCG: reference: The 1.9 A x-ray structure of a closed unliganded form of the periplasmic glucose/galactose receptor from Salmonella typhimurium., Flocco MM, Mowbray SL, J Biol Chem 1994 Mar 25;269(12):8931-6. PMID: 8132630 |
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