Human CD59, a membrane-bound glycoprotein involved in regulation of the complement system. It is a member of the three-finger protein superfamily, the same structural superfamily as snake three-finger toxin proteins. The characteristic disulfide bonds are shown in yellow. (Compare 1qkd_3ftx.png.)

Rendered from PDB ID 2J8B:

High-Resolution Structures of Bacterially Expressed Soluble Human Cd59. Leath, K.J., Johnson, S., Roversi, P., Hughes, T.R., Smith, R.A.G., Mackenzie, L., Morgan, B.P., Lea, S.M. (2007) Acta Crystallogr.,Sect.F 63: 648 PMID: 17671359 PMCID: PMC2335151 DOI: 10.1107/S1744309107033477

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