Protein Levels in Human Plasma

PLASMA PROTEIN	NORMAL RANGE (mg/dL)
Albumin	3,500 - 4,500
Prealbumin (Transthyretin)	10 - 40
α1-Globulins	300 - 600
α1 Acid Glycoprotein (orosomucoid)	55 - 140
α-Fetoprotein	approx. 0.001
Retinol Binding Protein	3 - 6
Thyroxine Binding Globulin	1 - 2
Transcortin	3 - 3.5
α2 Globulins (excluding lipoproteins)________	400 - 900
Ceruloplasmin	15 - 60
Haptoglobin Type 1-1	100 - 220
Haptoglobin Type 2-1	160 - 300
Haptoglobin Type 2-2	120 - 260
α2 Macroglobulin	100 - 280
β-Globulins (excluding lipoproteins)	600 - 1,100
C-Reactive Protein	< 1
Hemopexin	50 - 100
β2 Microglobulin	approx. 0.2
Transferrin	200 - 320
γ-Globulins	700 - 1,500