Table 1. Peptides Detected Directly from Supraoptic Magnocellular and Hippocampal Neurons in Coculture^a.

prohormone	obsd (m/z)	theor. (m/z)	error (Da)	putative magnocellular neuron	putative hippocampal neuron	presence in supraoptic nucleus (MSMS)b
neurokinin A [98−107]	1132.87	1132.55	−0.32		x
POMC[103−120]/J peptide	1882.93	1882.83	−0.10	x	x	x
neurokinin B[95−116]	2345.58	2344.51	−1.48		x
provasopressin[24−32]	1084.49	1084.44	−0.05	x		x
provasopressin[24−33]	1142.49	1142.46	−0.03	x		neuropred-rat model
provasopressin[158−168]	1250.49	1250.37	−0.86	x		x
provasopressin[36−54]	1920.36	1920.20	−0.16	x		neuropred-rat model
secretogranin2[571−583]	1354.49	1354.67	0.18	x		x
thymosin beta-10	4932.10	4932.51	0.41	x	x	x
thymosin beta-4	4959.30	4960.48	1.18	x	x	x
unknown	863.74			x	x
unknown	1021.50				x
unknown	1044.75			x	x
unknown	1521.62				x
unknown	1586.61			x	x
unknown	1799.60				x
unknown	1870.50				x
unknown	1997.85				x
unknown	2256.34			x
unknown	2481.59			x
unknown	2808.30			x	x
unknown	2923.80				x
unknown	2985.70			x	x
unknown	3004.60			x
unknown	3056.38			x	x
unknown	3516.44			x	x
unknown	4174.70				x

^aSummary of direct MALDI-TOF MS results for magnocellular neurons and hippocampal neurons in serum-free coculture after a single-step application of DHB matrix.

^bReference (1).