Table 1. Top 20 unique PCMC releasate proteins.

Ex-vivo IgE-activated mouse peritoneal-derived mast cell extracellular proteins that were not observed in the IgE-activated bone marrow-derived mast cell supernatants (top 20 proteins identified, according to spectral counts).

Gene name	UniProt ID	Uniprot description	Normalized PCMC spectral counts (avg.)	Normalized BMCMC spectral counts (avg.)
Mcpt4	MCPT4_MOUSE	Mast cell protease 4 (mMCP-4)	62.34	0.81
Ahnak	E9Q616_MOUSE	Protein Ahnak	20.38	0.81
Flna	FLNA_MOUSE	Filamin-A	19.54	0.00
Mcpt1	Q496V0_MOUSE	Mast cell protease 1	15.14	0.00
Aoah	AOAH_MOUSE	Acyloxyacyl hydrolase	12.82	0.40
Cpq	CBPQ_MOUSE	Carboxypeptidase Q	12.66	0.00
Galc	GALC_MOUSE	Galactocerebrosidase	12.27	0.28
Ecm1	ECM1_MOUSE	Extracellular matrix protein 1	12.17	0.00
Ddah2	DDAH2_MOUSE	N(G),N(G)-dimethylarginine dimethylaminohydrolase 2	8.65	0.81
Papss2	PAPS2_MOUSE	Bifunctional 3′-phosphoadenosine 5′-phosphosulfate synthase 2	8.64	0.00
Lap3	AMPL_MOUSE	Cytosol aminopeptidase	8.56	0.00
Syngr1	SNG1_MOUSE	Synaptogyrin-1	7.53	0.81
Ckb	KCRB_MOUSE	Creatine kinase B-type	7.06	0.00
Aars	SYA_MOUSE	Alanine--tRNA ligase, cytoplasmic	6.45	0.13
Rbp1	Q58EU7_MOUSE	Rbp1 protein	6.38	0.00
Ide	IDE_MOUSE	Insulin-degrading enzyme	6.19	0.27
Kv2a7	KV2A7_MOUSE	Ig kappa chain V-II region 26–10	5.89	0.67
Ptprg	PTPRG_MOUSE	Receptor-type tyrosine-protein phosphatase gamma	5.60	0.00
Prkar2b	KAP3_MOUSE	cAMP-dependent protein kinase type II-beta regulatory subunit	5.50	0.14
Pacsin2	Q3TDA7_MOUSE	Protein kinase C and casein kinase substrate in neurons 2,	5.04	0.68