1	42Y	O-propanoyl-L-serine	1.000
2	1X6	O-[(2e)-3-aminoprop-2-enoyl]-L-serine	0.917
3	432	O-butanoyl-L-serine	0.917
4	7BC	3-(acryloyloxy)propanoic acid	0.909
5	OAS	O-acetylserine	0.909
6	J8W	(2~{S})-2-azanyl-3-(3-oxidanyl-3-oxidanylidene-propanoyl)oxy-propanoic acid	0.846
7	K5L	(2~{R})-2-azanyl-3-(3-oxidanyl-3-oxidanylidene-propanoyl)oxy-propanoic acid	0.846
8	0AH	O-(bromoacetyl)-L-serine	0.833
9	73C	(2~{S})-2-azanyl-3-butoxy-propanoic acid	0.833
10	SRZ	Propoxy-L-serine	0.833
11	TH5	O-acetyl-L-threonine	0.833
12	TIS	O-(1,1-dihydroxyethyl)-L-serine	0.833
13	AZS	O-diazoacetyl-L-serine	0.769
14	OLZ	O-(2-aminoethyl)-L-serine	0.750
15	7C9	O-methyl-L-serine	0.727
16	2JG	(2s)-2-amino-3-oxopropyl hexanoate	0.714