Table 2.

Complement System Protein Folds

Protein	PDB entrya	Reference
C3 fragment C3d	1c3d	Nagar et al. (1998)
C5a anaphylatoxin	1kjs	Zhang et al. (1997)
Complement factor D	1dsu	Narayana et al. (1994)
CD59 (1‐70)	1cdq, 1erg	Fletcher et al. (1994), Kieffer et al. (1994)
Factor H CCP module 16	1hcc	Norman et al. (1991), Barlow et al. (1992)
Factor H CCP modules 15 and 16	1hfh	Barlow et al. (1993)
CCP modules 3 and 4b	1vvc	Wiles et al. (1997)
SCR modules 1 and 2c	1ckl	Casasnovas et al. (1999)

^asee Web‐Based Structural Bioinformatics and http://www.rcsb.org/pdb.

^bFrom Vaccinia virus complement control protein mimic.

^cFrom CD46.

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