List of PTMs

Below is a list of post-translational modifications (PTMs) that are currently supported. Additional ones may be considered as well, please open an issue detailing the significance of the request.

original	modified	name	pubchem	chemspider
ARG	RCI	citrulline	9750	9367
ARG	RSM	symmetric-dimethylarginine (0)	169148	147942
ARG	RMS	symmetric-dimethylarginine (+1)	25320698	21239047
ARG	RAM	asymmetric-dimethylarginine (0)	123831	110375
ARG	RMA	asymmetric-dimethylarginine (+1)
ARG	RMN	omega-N-methylarginine (0)	132862	117259
ARG	RMC	omega-N-methylarginine
ARG	R0P
ARG	GSA	glutamic semialdehyde	193305	167744
ARG	R1P	phosphoarginine (-1)
ASN	N3H	3-hydroxyasparagine (R)	4471902	3670287
ASN	NH3	3-hydroxyasparagine (S)	15991574	13122509
ASN	NNG	N-acetylglucosamine	1738118	1376695
ASN	NME	N4-methylasparagine	325695	288387
ASN	ASP	aspartic acid (-1)
ASN	ASPH
ASP	DN3	3-hydroxyaspartate (0, R)	11788378	9963052
ASP	D3N	3-hydroxyaspartate (0, S)	5425	5232
ASP	D3H	3-hydroxyaspartate (-1, S)
ASP	DH3	3-hydroxyaspartate (-1, R)
ASP	DMA	aspartate methyl ester	97368	87886
ASP	D1P	phosphoaspartate (-1)
ASP	D2P	phosphoaspartate (-2)
CYS	CSE	cysteic acid	25701	23942
CYS	CAM	S-carbamoyl-cysteine	90546	81753
CYS	CSA	cysteine sulfinic acid	109	107
CYS	CYH	cysteine sulfenic acid	165339	144942
CYS	CSN	S-nitrosocysteine	9793848	7969615
CYS	CYM	S-methylcysteine	24417	22826
GLN	Q4H	4-hydroxyglutamine (R)	22621570	13488647
GLN	QH4	4-hydroxyglutamine (S)	54409926	61327209
GLN	QME	N5-methylglutamine	439925	388957
GLN	GLU	glutamic acid (-1)
GLN	GLUH
GLU	ECA	4-carboxyglutamate (-2)
GLU	ECN	4-carboxyglutamate (-1)
GLU	EME	glutamate methyl ester	68662	61916
HIS	H2X	2-oxo-histidine	127761	113326
HIS	H3M	3-methylhistidine (0)	64969	58494
HIS	H3C	3-methylhistidine (+1)
HIS	H1C	1-methylhistidine (+1)
HIS	H1M	1-methylhistidine (0)	92105	83153
HIS	H32	3-phosphohistidine (-2)
HIS	H31	3-phosphohistidine (-1)
HIS	H12	1-phosphohistidine (-2)
HIS	H11	1-phosphohistidine (-1)
HIS	ASP	aspartic acid (-1)
HIS	ASPH
HIS	ASN	asparagine	6267	6031
LEU	L3H	3-hydroxyleucine (R)
LEU	LH3	3-hydroxyleucine (S)	6994741	5362730
LEU	L4H	4-hydroxyleucine	21087467	19895986
LEU	LH5	5-hydroxyleucine (S)	15927962	32970047
LEU	L5H	5-hydroxyleucine (R)	15927964	32970048
LEU	LNO	norleucine	21236	19964
LYS	KAL	allysine	160603	141126
LYS	KAM	homocitrulline	65072	58582
LYS	KH5	5-hydroxylysine (0, R)	3032849	2297721
LYS	K5H	5-hydroxylysine (0, S)
LYS	KHP	5-hydroxylysine (+1, S)
LYS	KPH	5-hydroxylysine (+1, R)
LYS	KCA	carboxylysine (-1)
LYS	KCN	carboxylysine (0)
LYS	KHR	hypusine (R)	10922432	9097677
LYS	KHS	hypusine (S)
LYS	KLA	alpha-lysyllysine
LYS	KLB	beta-lysyllysine
LYS	KAC	N-acetyllysine	92907	83869
LYS	K3C	N6,N6,N6-trimethyllysine	440121	389121
LYS	K2M	N6,N6-dimethyllysine (0)	193344	167778
LYS	KMN	methyllysine (0)	541646	471673
LYS	KMC	N6-methyllysine (+1)
LYS	K2C	N6,N6-dimethyllysine (+1)
LYS	K1P	phospholysine (-1)
LYS	LNO	norleucine	21236	19964
LYS	K2P	phospholysine (-2)
MET	MES	methionine sulfone	445282	392966
MET	MXS	methionine sulfoxide (S)	158980	139840
MET	MSX	methionine sulfoxide (R)	148508	130911
MET	LNO	norleucine	21236	19964
PHE	F23
PHE	F2H	2-hydroxyphenylalanine	91482	82607
PHE	F3H	3-hydroxyphenylalanine	6950578	5323512
PHE	TYR	tyrosine	6057	5833
PRO	PGA	3-hydroxyproline (S)
PRO	PHH	3,4-dihydroxyproline	6454515	4956829
PRO	HY2	4-hydroxyproline (R)	5810	5605
PRO	PH3	3-hydroxyproline (R)
PRO	P3H	3-hydroxyproline (S)	150779	132893
PRO	HYP	4-hydroxyproline (S)
PRO	P5H	5-hydroxyproline (S)	14325405	25943482
PRO	PH5	5-hydroxyproline (R)	6338400	32989511
PRO	GSA	glutamic semialdehyde	193305	167744
SER	SOG	serine-O-acetylglucosamine
SER	S1P	phosphoserine (-1)
SER	SDH	dehydroalanine	123991	110510
SER	S2P	phosphoserine (-2)
THR	TOX	2-amino-3-ketobutyric acid	440033
THR	TOG	threonine-O-acetylglucosamine
THR	T1P	phosphothreonine (-1)
THR	TDH	2,3-didehydrobutyrine	3082167
THR	T2P	phosphothreonine (-2)
TRP	W2H	2-hydroxytryptophan	17754204	16744237
TRP	W4H	4-hydroxytryptophan	589768	512674
TRP	W5H	5-hydroxytryptophan	144	141
TRP	W6H	6-hydroxytryptophan	49867758	25058065
TRP	W7H	7-hydroxytryptophan	2763071	2043769
TRP	WNI	6-nitrotryptophan	3246256	2496980
TRP	WBR	6-bromotryptophan	9856996	8032696
TRP	WKF	formyl-kynurenine	910	886
TRP	WKH	3-hydroxykynurenine	89	87
TRP	WKY	kynurenine	161166	141580
TYR	YSU	sulfotyrosine	514186	448617
TYR	HTY	3,4-dihydroxyphenylalanine	6047	5824
TYR	YNB	nitrotyrosine (neutral) old
TYR	YNN	nitrotyrosine (0) pre-revised	65124	58633
TYR	YNI	nitrotyrosine (-1)
TYR	Y1P	phosphotyrosine (-1)
TYR	YCH	chlorotyrosine	110992	99636
TYR	Y2P	phosphotyrosine (-2)
VAL	V3H	3-hydroxyvaline	192763	167279