Table 1. Non-gonadotropin protein profile identified in u-hCG products.

N	Identified human proteins	Accession number	u-hCG manufacturer A	u-hCG manufacturer B
1	Major prion protein	P04156	X	X
2	Apolipoprotein D	P05090	X	X
3	Beta-2-glycoprotein 1	P02749	X	X
4	Complement decay-accelerating factor	P08174	X	X
5	Alpha-1-microglobulin (protein AMBP)	P02760	X	X
6	CD59 glycoprotein	P13987	X	X
7	Uromodulin	P07911	X	X
8	Growth/differentiation factor 15	Q99988	X	X
9	Endosialin	Q9HCU0	X	X
10	Protein delta homolog 1	P80370	X	X
11	Fibrillin-1	P35555	X	X
12	Matrix metalloproteinase-9	P14780	X	X
13	Plasminogen	P00747	X
14	Complement factor B	P00751	X
15	Tumor necrosis factor receptor superfamily member 1B	P20333	X
16	Hepatocyte growth factor activator	Q04756	X
17	EGF-containing fibulin-like extracellular matrix protein 1	Q12805	X
18	Tumor necrosis factor receptor superfamily member 1A	P19438	X
19	Connective tissue growth factor	O18739	X
20	Basement membrane-specific heparan sulfate proteoglycan core protein	P98160	X
21	Plasma serine protease inhibitor (protein C inhibitor)	P05154		X
22	Insulin-like growth factor-binding protein 7	Q16270		X
23	Zinc-alpha-2-glycoprotein	P25311		X
24	Folate receptor alpha	P15328		X
25	Kininogen-1	P01042		X
26	Protein S100-A7 (Psoriasin)	P31151		X
27	Pro-epidermal growth factor	P01133		X
28	Fibulin-2	P98095		X
29	Collagen alpha-1(III) chain	P02461		X
30	Apolipoprotein(a)	P08519		X
31	Probable carboxypeptidase PM20D1	Q6GTS8		X
32	Complement factor H-related protein 1	Q03591		X
33	Cystatin-M	Q15828		X

u-hCG  =  urinary human chorionic gonadotropin.