3.4.21.41	?	x * 68000, SDS-PAGE	753085	
3.4.21.41	?	x * 69500, enzyme fused to maltose binding protein, SDS-PAGE	753377	
3.4.21.41	?	x * 75900, calculated from amino acid sequence	753377	
3.4.21.41	?	x * 78000, calculated from amino acid sequence	753598	
3.4.21.41	?	x * 88000, C1r zymogen, domain structure, overview	683195	
3.4.21.41	dimer	2 * 83000, SDS-PAGE of reduced protein, gel filtration in 6 M guanidinium hydrochloride	81393	
3.4.21.41	dimer	2 * 85000, the C1rbar subunits consist of one polypeptide chain of 56000 Da, A-chain, that is disulfide-linked to a 27000 Da B-chain, SDS-PAGE	81395	
3.4.21.41	dimer	CCP1 is essential to the assembly of the dimer, but formation of a stable dimer is not a prerequisite for self-activation	652176	
3.4.21.41	dimer	deletion of CCP1 domain from CCP1-CCP2-SP fragment results in the loss of the dimeric structure. Dimerization of C1r is not a prerequisite for autoactivation	652680	
3.4.21.41	heteropentamer	C1q, 2 * C1s, 2 * C1r	717805