Characterization of recombinant human and bovine thyroid-stimulating hormone preparations by mass spectrometry and determination of their endotoxin content

Table 1 Selected proteins identified in the bTSH product 1 (Thyrotropic hormone from bovine pituitary, Sigma Aldrich; 3 lot numbers) by database search following mass spectrometry

Identified proteins	LOT 069 K1588	LOT 119 K1583	LOT 040 M1246
Prolactin	143	105	60
Lutropin subunit beta	100	84	86
Vasopressin-neurophysin2-copeptin	85	87	61
Thyrotropin subunit beta	76	64	44
Glycoprotein hormones alpha chain	57	73	75
Pro-opiomelanocortin	36	35	42
Serum albumin	25	1	0
Somatotropin	12	11	8
Beta-2-glycoprotein 1	5	2	0
Hemoglobin subunit beta	4	2	3
Oxytocin-neurophysin 1	4	2	2

Numbers of assigned spectra are given (corresponding to the numbers of the acquired spectra per protein).

ISSN: 1746-6148