Table 1.

Positive Ion Fragment List for Multivariate Analysis with Amino Acids Adapted from Previous Work^a

Molecular Fragment	Mass	Prevalent Amino Acid	Extracellular Matrix Protein Association
CH4N	30.036	Gly	Collagen I
CH3N2	43.029	Arg	Laminin
C2H6N	44.052	Ala/Cys
C3H3O	55.020	Tyr	Fibronectin
C2H4NO	58.029	Gly	Collagen I
CH5N3	59.048	Arg	Laminin
C2H6NO	60.045	Ser	Fibronectin
C2H5S	61.011	Met	Collagen I
C4H6N	68.068	Pro	Collagen I
C4H5O	69.039	Thr	Fibronectin
C3H4NO	70.035	Asn	Laminin
C3H3O2	71.013	Ser	Fibronectin
C3H6NO	72.047	Gly	Collagen I
C4H10N	72.088	Val	Fibronectin
C2H7N3	73.070	Arg	Laminin
C3H8NO	74.065	Thr	Fibronectin
C2H6NS	76.028	Cys	Laminin
C4H5N2	81.037	His
C5H7O	83.053	Val	Fibronectin
C4H6NO	84.048	Glu	Fibronectin
C5H10N	84.086	Lys
C3H5N2O	85.051	Gly	Collagen I
C3H7N2O	87.062	Asn/Gly
C3H6NO2	88.047	Asn/Asp
C5H7N2	95.060	His
C4H4NO2	98.024	Asn	Laminin
C4H10N3	100.091	Arg	Laminin
C4H11N3	101.038	Arg	Laminin
C4H10NS	104.070	Met	Collagen I
C7H7O	107.060	Tyr	Fibronectin
C5H8N3	110.027	Arg/His
C4H5N2O2	113.052	Gly	Collagen I
C4H7N2O2	115.059	Gly	Collagen I
C5H9OS	117.074	Met	Collagen I
C8H10N	120.099	Phe
C6H5N2O	121.068	His
C5H11N4	127.096	Arg	Laminin
C9H8O	132.092	Phe
C8H10NO	136.078	Tyr	Fibronectin
C10H11N2	159.122	Trp	Fibronectin
C11H8NO	170.086	Trp	Fibronectin

^aadapted from Canavan et al (34) and Wagner et al (35)