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Figure 2
Flexibility of the large extracellular loop. (a) Superimposition of the large extracellular loops of the human CD81 structures [PDB entries 1g8q (green and cyan) and 1iv5 (orange and red)], viewed from the extracellular side. The inset shows a schematic diagram, with green and pink stars representing cysteine residues forming intramolecular disulfide bonds. (b) Amino-acid sequence alignment of the large extracellular loops of human CD81, mouse CD81, rat CD81 and human CD9. Fully and partially conserved residues are highlighted by blue panels and blue letters, respectively. The secondary structure of CD81 is indicated above the alignment. Residues are numbered according to human CD81. Green and pink stars indicate the cysteine residues shown in the diagram in (a).

Journal logoSTRUCTURAL BIOLOGY
COMMUNICATIONS
ISSN: 2053-230X
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