Custom Peptide Modifications

We offer over 400 N- and C-terminal and internal peptide modifications to give you the custom peptides that you need to propel your research forward. This table separates modifications based on type to help you quickly determine which modification will best suit your needs.

Modification types

• Miscellaneous modifications range from biotinylation and carboxymethylation (CAM) to protecting groups such as Fmoc, lysine modifications and enzyme conjugation
• Fluorescent dyes that include emitting and quenching dyes for fluorescence (or Förster) resonance energy transfer (FRET) and other fluorescence applications
• Linkers, spacers and polyethylene glycol (PEG) modifications for various labeling applications
• D-stereoisomers and non-natural and special amino acids
• Post-translational modifications (PTMs) and specific amino acids
• Isotopically labeled (heavy) amino acids and isobaric tags (e.g., TMT*) for relative and absolute proteomic quantitation
• Carrier proteins to prepare peptide immunogens
• Cyclization, dimerization and other special synthesis methods

The table below separates the available modifications by type and provides the name, abbreviations and location (N- or C-terminal or internal) to help you determine the best modification when ordering custom peptides.

Simply enter any search text into the “Filter” search box below, and the table will dynamically list only those products that include your text. The table can also be sorted based on any of the column headings.

Related Resources:

• Peptide Analysis Tool
• Amino Acid Single-letter Codes and Physical Properties
• Review of Peptide Design

Related Products:

• Custom Peptide Synthesis Service
• HeavyPeptide AQUA Custom Synthesis Service
• HeavyPeptide AQUA FasTrack Service
• Imject KLH-Peptide Conjugation Service

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Type	Name	Abbreviation - Alternative name	Position within sequence	Graphical representation of available positions
Misc	1-Adamantanecarbonyl -	1-Adamantanecarbonyl-NH	N-term	■□□□...□□□□
Misc	2,4,6-Trinitrophenyl - TNP	TNP-NH	N-term	■□□□...□□□□
Misc	2-Furoyl -	2-Furoyl-NH	N-term	■□□□...□□□□
Misc	2-Naphtoic acid -	Naphtyl-NH	N-term	■□□□...□□□□
Misc	3-(Maleimido)propionyl -	Maleimide-NH	N-term	■□□□...□□□□
Misc	3,5-Diiodo-Tyrosine -	[Y(I)2]	Internal	■■■■...■■■■
Misc	3-Chloro-Tyrosine -	[Y(Cl)]	Internal	■■■■...■■■■
Misc	3-nitro-2-pyridylthio-L-Cys -	[C(Npys)]	Internal	■■■■...■■■■
Misc	3-Nitro-Indole -	[3-Nitro-Indole]	Internal	■■■■...■■■■
Misc	3-Nitro-Pyrrol -	[3-Nitro-Pyrrol]	Internal	■■■■...■■■■
Misc	3-Nitro-Tyrosine -	[Y(NO2)]	Internal	■■■■...■■■■
Misc	4-Methylthio-2-oxobutanoic ac. -	[H3C-S-CH2-CH2-CO-CO-NH]	N-term	■□□□...□□□□
Misc	4-nitrobenzo-2-oxa-1,3-diazole - NBD	NBD-NH	N-term	■□□□...□□□□
Misc	4-Pentynoic acid -	4-Pentynoic acid-NH	N-term	■□□□...□□□□
Misc	4-Phenylazophenol - O-PAP	CO-PAP	C-term	□□□□...□□□■
Misc	6-Bromo-D/L-Tryptophan -	[D/L-W(Br)]	Internal	■■■■...■■■■
Misc	6-Cloro-Tryptophan -	[W(Cl)]	Internal	■■■■...■■■■
Misc	Acetylation -	Acetyl-NH	N-term	■□□□...□□□□
Misc	Aldehyde -	CHO	C-term	□□□□...□□□■
Misc	Amidation -	CONH2	C-term	□□□□...□□□■
Misc	Amino nitrophenyl prop. acid -	[Amino nitrophenyl prop. acid]	Internal	■■■■...■■■■
Misc	Amino-nitrophenyl propion. ac. - ANP-linker	[ANP]	Internal	■■■■...■■■■
Misc	Aminooxyacetyl -	H2N-O-CH2-CO-NH	N-term	■□□□...□□□□
Misc	Benzoyl - Bz	Benzoyl-NH	N-term	■□□□...□□□□
Misc	Benzyloxycarbonyl - Cbz, Z	Z-NH	N-term	■□□□...□□□□
Misc	Biotin -	Biotin-NH	N-term	■□□□...□□□□
Misc	Biotin - Ethylenediamin-Biotin	CO-NH-CH2-CH2-NH-Biotin	C-term	□□□□...□□□■
Misc	Biotin-SS-linker -	Biotin-SS-NH	N-term	■□□□...□□□□
Misc	Bis(aminoethyl)ethylene glycol -	CO-NH-(CH2-CH2-O)2-CH2-CH2-NH2	C-term	□□□□...□□□■
Misc	Brom acetic acid -	BrCH2CO-NH	N-term	■□□□...□□□□
Misc	Chlormethylketon - CMK	CMK	C-term	□□□□...□□□■
Misc	Cys(4-Methoxytrityl) - Cys(MMT)	[C(Mmt)]	Internal	■■■■...■■■■
Misc	Cys(Acetamidomethyl) - Cys(Acm)	[C(Acm)]	Internal	■■■■...■■■■
Misc	Cys(Carbamidomethyl) - Cys(CAM) / Cys(CH2CONH2)	[C(Cam)]	Internal	■■■■...■■■■
Misc	Cys(Carboxymethyl) - Cys(CMC) / Cys(CH2COOH)	[C(Cmc)]	Internal	■■■■...■■■■
Misc	Cys(di(palmitoyloxy)-propyl) - Cys(Pam2)	[C(Pam2)]	Internal	■■■■...■■■■
Misc	Cys(Farnesyl) -	[C(Farnesyl)]	Internal	■■■■...■■■■
Misc	Cys(HRP) - Cys(horseradish peroxidase)	[C(HRP)]	Internal	■■■■...■■■■
Misc	Cys(MTSL) -	[C(MTSL)]	Internal	■■■■...■■■■
Misc	Cys(Myristyl) - Cys(CH2(CH2)12CH3)	[C(Myristyl)]	Internal	■■■■...■■■■
Misc	Cys(Palmitoyl) -	[C(Palm)]	Internal	■■■■...■■■■
Misc	Cys(S-Butyl) -	[C(S-But)]	Internal	■■■■...■■■■
Misc	Cys(S-Ethyl) -	[C(S-Et)]	Internal	■■■■...■■■■
Misc	Cys(S-Isobutyl) -	[C(S-Isobut)]	Internal	■■■■...■■■■
Misc	Cys(S-Isopropyl) -	[C(S-Isoprop)]	Internal	■■■■...■■■■
Misc	Cys(S-Methyl) -	[C(S-Me)]	Internal	■■■■...■■■■
Misc	Cys(S-Pentyl) -	[C(S-Pentyl)]	Internal	■■■■...■■■■
Misc	Cys(S-Propyl) -	[C(S-Prop)]	Internal	■■■■...■■■■
Misc	Cys(S-tert-Butyl) -	[C(S-tert-But]	Internal	■■■■...■■■■
Misc	Cysteamide -	Cysteamide	C-term	□□□□...□□□■
Misc	Decanoyl -	Decanoyl-NH	N-term	■□□□...□□□□
Misc	Desthiobiotin -	Desthiobiotin-NH	N-term	■□□□...□□□□
Misc	Digoxigenin -	Digoxigenin-NH	N-term	■□□□...□□□□
Misc	DOTA -	[DOTA]	N-term	■□□□...□□□□
Misc	Ethylamide - N-Ethyl	CONH(C2H5)	C-term	□□□□...□□□■
Misc	Ethylester - O-Ethyl	COOEt	C-term	□□□□...□□□■
Misc	Fmoc -	Fmoc-NH	N-term	■□□□...□□□□
Misc	Formyl -	Formyl-NH	N-term	■□□□...□□□□
Misc	Glu(Arg) - Arg at side chain of Glu	[Glu(Arg)]	Internal	■■■■...■■■■
Misc	HRP -	CO-NH -HRP	C-term	□□□□...□□□■
Misc	HRP -	HRP-NH	N-term	■□□□...□□□□
Misc	Hydrazide -	CO-NH -NH2	C-term	□□□□...□□□■
Misc	Hydrazine-succinyl -	H2N-NH-CO-CH2-CH2-CO-NH-	N-term	■□□□...□□□□
Misc	Iodoacetyl -	IH2C-CO-	N-term	■□□□...□□□□
Misc	Lys(2-Aminooxy acetic acid) - Lys(Aoa)	[K(Aoa)]	Internal	■■■■...■■■■
Misc	Lys(Acetyl) -	[K(Ac)]	Internal	■■■■...■■■■
Misc	Lys(Ahx-Biotin) -	[K(Ahx-Biotin)]	Internal	■■■■...■■■■
Misc	Lys(Ahx-SS-Biotin) -	[K(Ahx-SS-Biotin)]	Internal	■■■■...■■■■
Misc	Lys(Biotin) -	[K(Biotin)]	Internal	■■■■...■■■■
Misc	Lys(Boc) -	[K(Boc)]	Internal	■■■■...■■■■
Misc	Lys(Butyryl) -	[K(Butyryl)]	Internal	■■■■...■■■■
Misc	Lys(Crotonyl) -	[K(Crotonyl)]	Internal	■■■■...■■■■
Misc	Lys(Desthiobiotin) -	[K(Desthiobiotin)]	Internal	■■■■...■■■■
Misc	Lys(Digoxigenin] -	[K(Digoxigenin)]	Internal	■■■■...■■■■
Misc	Lys(DST-PEG 2-Biotin) -	[K(DST-PEG 2-Biotin)]	Internal	■■■■...■■■■
Misc	Lys(Ferrocene) -	[K(Ferrocene)]	Internal	■■■■...■■■■
Misc	Lys(Formyl) -	[K(Formyl)]	Internal	■■■■...■■■■
Misc	Lys(GG) - Ubiqutin	[K(GG)]	Internal	■■■■...■■■■
Misc	Lys(GGRLR) -	[K(GGRLR)]	Internal	■■■■...■■■■
Misc	Lys(Lipoyl) -	[K(Lipoyl)]	Internal	■■■■...■■■■
Misc	Lys(Palmitoyl) -	[K(Palmitoyl)]	Internal	■■■■...■■■■
Misc	Lys(Propionyl) -	[K(Propionyl)]	Internal	■■■■...■■■■
Misc	Lys(Pyrofolate) -	[K(Pyrofolate)]	Internal	■■■■...■■■■
Misc	Lys(Stearyl) -	[K(Stearyl)]	Internal	■■■■...■■■■
Misc	Lys(Succinyl) -	[K(Succinyl)]	Internal	■■■■...■■■■
Misc	Lys(TFA) - Lysine(Trifluoracetyl)	[K(TFA)]	Internal	■■■■...■■■■
Misc	Maleimide - via SMCC	Maleimide-NH	N-term	■□□□...□□□□
Misc	Methanethiosulfonate - MTS	MTS-NH	N-term	■□□□...□□□□
Misc	Methoxysuccinyl -	H3C-O-CO-CH2-CH2-CO-NH	N-term	■□□□...□□□□
Misc	Methylamide - N-Methyl	CO-NH(CH3)	C-term	□□□□...□□□■
Misc	Methylester - O-Methyl	COOMe	C-term	□□□□...□□□■
Misc	Myristoyl -	Myristoyl-NH	N-term	■□□□...□□□□
Misc	N-Hydroxysuccinimid ester - NHS	CO-NHS	C-term	□□□□...□□□■
Misc	Orn(Biotin) -	[Orn(Biotin)]	Internal	■■■■...■■■■
Misc	Palmitoyl -	Palmitoyl-NH	N-term	■□□□...□□□□
Misc	para-Bromo-D-Phenylalanine -	[D-F(4-Br)]	Internal	■■■■...■■■■
Misc	para-Chloro-Phenylalanine -	[F(4-Cl)]	Internal	■■■■...■■■■
Misc	para-Iodo-Phenylalanine -	[F(I)]	Internal	■■■■...■■■■
Misc	para-Nitro-Phenylalanine -	[F(NO2)]	Internal	■■■■...■■■■
Misc	Phenylacetic acid - Paa	Paa-NH	N-term	■□□□...□□□□
Misc	Photo-Leucine -	[Photo-L]	Internal	■■■■...■■■■
Misc	Photo-Methionine -	[Photo-M]	Internal	■■■■...■■■■
Misc	p-tosyl-Gly -	[p-tosyl-G]	N-term	■□□□...□□□□
Misc	S-Acetylmercaptosuccinyl - SAMSA	SAMSA-NH	N-term	■□□□...□□□□
Misc	Ser(Acetyl) -	[S(Ac)]	Internal	■■■■...■■■■
Misc	Ser(Octanoyl) -	[S(Oct)]	Internal	■■■■...■■■■
Misc	Stearyl -	Stearyl-NH	N-term	■□□□...□□□□
Misc	Succinyl -	Succinyl-NH	N-term	■□□□...□□□□
Misc	tert. Butoxycarbonyl - Boc	Boc-NH	N-term	■□□□...□□□□
Misc	Thiobenzyl -	CO-S(Bzl)	C-term	□□□□...□□□■
Misc	Thiopropionyl - Tpa	Tpa-NH	N-term	■□□□...□□□□
Misc	trans-Cinnamoyl -	Cinnamoyl-NH	N-term	■□□□...□□□□
Misc	Tyr(Palmitoyl) -	[Y(Palm)]	Internal	■■■■...■■■■
Dye	(2,4-Dinitrophenyl)-Glycine - (2,4-DNP)-Gly	DNP-NH-G	N-term	■□□□...□□□□
Dye	2,4-Dinitrophenyl - DNP	CO-DNP	C-term	□□□□...□□□■
Dye	2,4-Dinitrophenyl - DNP	DNP-NH	N-term	■□□□...□□□□
Dye	5/6-Carboxyfluorescein - 5/6-FLUO	5/6-Fluorescein-NH	N-term	■□□□...□□□□
Dye	5/6-Tetramethylrhodamine - 5/6-TAMRA	5/6-TAMRA-NH	N-term	■□□□...□□□□
Dye	5-Carboxyfluorescein - 5-FLUO	5-Fluorescein-NH	N-term	■□□□...□□□□
Dye	5-Tetramethylrhodamine - 5-TAMRA	5-TAMRA-NH	N-term	■□□□...□□□□
Dye	6-Carboxyfluorescein - 6-FLUO	6-Fluorescein-NH	N-term	■□□□...□□□□
Dye	6-Tetramethylrhodamine - 6-TAMRA	6-TAMRA-NH	N-term	■□□□...□□□□
Dye	7-Amino-4-methylcoumarin - AMC	CO-AMC	C-term	□□□□...□□□■
Dye	Amino-trifluoromethyl-coumarin - AFC	CO-AFC	C-term	□□□□...□□□■
Dye	ATTO 647N -	ATTO 647N-NH	N-term	■□□□...□□□□
Dye	Cy7 -	Cy7-NH	N-term	■□□□...□□□□
Dye	Cys(5/6-TAMRA) -	[C(5/6-TAMRA)]	Internal	■■■■...■■■■
Dye	Cys(5-TAMRA) -	[C(5-TAMRA)]	Internal	■■■■...■■■■
Dye	Cys(6-TAMRA) -	[C(6-TAMRA)]	Internal	■■■■...■■■■
Dye	Cys(acetamido-fluorescein) -	[C(acetamido-fluorescein)]	Internal	■■■■...■■■■
Dye	Cys(AEDANS) -	[C(AEDANS)]	Internal	■■■■...■■■■
Dye	Cys(Allophycocyanine) -	[C(Allophycocyanine)]	Internal	■■■■...■■■■
Dye	Cys(DY 555) -	[C(DY 555)]	Internal	■■■■...■■■■
Dye	Cys(DY 649) -	[C(DY 649)]	Internal	■■■■...■■■■
Dye	Cys(DYQ660) -	[Cys(DYQ660)]	Internal	■■■■...■■■■
Dye	Dabcyl -	Dabcyl-NH	N-term	■□□□...□□□□
Dye	Dabsyl -	Dabsyl-NH	N-term	■□□□...□□□□
Dye	Dansyl -	CO-Dansyl	C-term	□□□□...□□□■
Dye	Dansyl -	Dansyl-NH	N-term	■□□□...□□□□
Dye	DAP(DNP) - DNP at Diaminopropionic acid	[DAP(DNP)]	Internal	■■■■...■■■■
Dye	DAP(DY 647) - DY 647 at Diaminopropionic ac.	[DPA(DY-647)]	Internal	■■■■...■■■■
Dye	DAP(DyLight 488) - DyLight 488 at Diaminoprop. ac	[DPA(DY 488)]	Internal	■■■■...■■■■
Dye	DAP(NMA) - NMA at Diaminopropionic acid	[DAP(NMA)]	Internal	■■■■...■■■■
Dye	Dinitrophenyl-Ethylenediamine - EDDnp	CO-EDDnp	C-term	□□□□...□□□■
Dye	D-Lys(5/6-Fluorescein) -	[D-K(5/6-Fluorescein)]	Internal	■■■■...■■■■
Dye	D-Lys(5/6-TAMRA) -	[D-Lys(5/6-TAMRA)]	Internal	■■■■...■■■■
Dye	DY 495 -	DY 495-NH	N-term	■□□□...□□□□
Dye	DY 505 -	DY 505-NH	N-term	■□□□...□□□□
Dye	DY 530 -	DY 530-NH	N-term	■□□□...□□□□
Dye	DY 547 -	DY 547-NH	N-term	■□□□...□□□□
Dye	DY 549 -	DY 549-NH	N-term	■□□□...□□□□
Dye	DY 630 -	DY630-NH	N-term	■□□□...□□□□
Dye	DY 633 -	DY 633-NH	N-term	■□□□...□□□□
Dye	DY 635 -	DY 635-NH	N-term	■□□□...□□□□
Dye	DY 647 -	DY 647-NH	N-term	■□□□...□□□□
Dye	DY 647 - aminomodified	CO-DY 647	C-term	□□□□...□□□■
Dye	DY 649 -	DY 649-NH	N-term	■□□□...□□□□
Dye	DY 680 -	DY 680-NH	N-term	■□□□...□□□□
Dye	DY 682 -	DY 682-NH	N-term	■□□□...□□□□
Dye	DY 750 -	DY 750-NH	N-term	■□□□...□□□□
Dye	DY 750 -	CO-DY 750	C-term	□□□□...□□□■
Dye	DY 751 -	DY 751-NH	N-term	■□□□...□□□□
Dye	DY 800 -	DY 800-NH	N-term	■□□□...□□□□
Dye	DyLight 488 -	DY 488-NH	N-term	■□□□...□□□□
Dye	DyLight 504Q -	DyLight 504Q-NH	N-term	■□□□...□□□□
Dye	DyLight 543Q -	DyLight 543Q-NH	N-term	■□□□...□□□□
Dye	DyLight 683Q -	DyLight 683Q-NH	N-term	■□□□...□□□□
Dye	DYQ 660 -	DYQ 660-NH	N-term	■□□□...□□□□
Dye	EDANS -	CO-EDANS	C-term	□□□□...□□□■
Dye	Glu(EDANS) -	[E(EDANS)]	Internal	■■■■...■■■■
Dye	His(DNP) -	[H(DNP)]	Internal	■■■■...■■■■
Dye	Lys(2-(N-methylamino)benzoyl) - Lys(NMA)	[Lys(NMA)]	Internal	■■■■...■■■■
Dye	Lys(2,4-DNP) -	[K(DNP)]	Internal	■■■■...■■■■
Dye	Lys(5/6-Fluorescein) -	[K(5/6-Fluo)]	Internal	■■■■...■■■■
Dye	Lys(5/6-TAMRA) -	[K(5/6-TAMRA)]	Internal	■■■■...■■■■
Dye	Lys(5-Fluorescein) -	[K(5-Fluo)]	Internal	■■■■...■■■■
Dye	Lys(5-TAMRA) -	[K(5-TAMRA)]	Internal	■■■■...■■■■
Dye	Lys(6-Fluorescein) -	[K(6-Fluo)]	Internal	■■■■...■■■■
Dye	Lys(Ahx-(5-Fluorescein)) -	[K(Ahx-(5-Fluo))]	Internal	■■■■...■■■■
Dye	Lys(ATTO 655) -	[K(ATTO 655)]	Internal	■■■■...■■■■
Dye	Lys(Dabcyl) -	[K(Dabcyl)]	Internal	■■■■...■■■■
Dye	Lys(DY 405) -	[K(DY 405)]	Internal	■■■■...■■■■
Dye	Lys(DY 495) -	[K(DY 495)]	Internal	■■■■...■■■■
Dye	Lys(DY 530) -	[K(DY 530)]	Internal	■■■■...■■■■
Dye	Lys(DY 547) -	[K(DY 547)]	Internal	■■■■...■■■■
Dye	Lys(DY 590) -	[K(DY 590)]	Internal	■■■■...■■■■
Dye	Lys(DY 630) -	[K(DY 630)]	Internal	■■■■...■■■■
Dye	Lys(DY 635) -	[K(DY 635)]	Internal	■■■■...■■■■
Dye	Lys(DY 647) -	[K(DY 647)]	Internal	■■■■...■■■■
Dye	Lys(DY 647) -	[K(DY 647)]	Internal	■■■■...■■■■
Dye	Lys(DY 800) -	[K(DY 800)]	Internal	■■■■...■■■■
Dye	Lys(DyLight 488) -	[K(DY 488)]	Internal	■■■■...■■■■
Dye	Lys(DyLight 633) - Lys(DY633)	[K(DyLight 633)]	Internal	■■■■...■■■■
Dye	Lys(DyLight 649) -	[K(DY 649)]	Internal	■■■■...■■■■
Dye	Lys(DYQ 3) -	[K(DYQ 3)]	Internal	■■■■...■■■■
Dye	Lys(Rhodamine B) -	[K(Rhodamine B)]	Internal	■■■■...■■■■
Dye	Lys(Rhodamine Green) -	[K(Rhodamine Green)]	Internal	■■■■...■■■■
Dye	Methoxycoumarin acetic acid - MCA	CO-MCA	C-term	□□□□...□□□■
Dye	Methoxycoumarin acetic acid - MCA	MCA-NH	N-term	■□□□...□□□□
Dye	para-Nitroanilide - pNA	CO-pNA	C-term	□□□□...□□□■
Dye	para-Nitrophenylester -	COONp	C-term	□□□□...□□□■
Dye	QSY21 -	QSY21-NH	N-term	■□□□...□□□□
Dye	Rhodamine 110 -	CO-Rhod 110	C-term	□□□□...□□□■
Dye	Rhodamine B -	Rhodamin B-NH	N-term	■□□□...□□□□
Dye	R-Phycoerythrin -	CO- R-Phycoerythrin	C-term	□□□□...□□□■
Dye	Tide Quencher 2 - TQ2	TQ2-NH	N-term	■□□□...□□□□
Linkers	12-Aminododecanoic acid - Ado	[Ado]	Internal	■■■■...■■■■
Linkers	5-Aminopentanoic acid - Aminovaleric acid (Ava)	[Ava]	Internal	■■■■...■■■■
Linkers	6-Aminohexanoic acid (Ahx) - Aminocaproic acid (Aca)	[Ahx]	Internal	■■■■...■■■■
Linkers	8-Aminooctanoic acid - Aoc	[Aoc]	Internal	■■■■...■■■■
Linkers	Cys(PEG 40000) -	[C(PEG 40000)]	Internal	■■■■...■■■■
Linkers	Methyl-PEG12 - MS(PEG)12	MS(PEG)12-NH	N-term	■□□□...□□□□
Linkers	Methyl-PEG24 - MS(PEG)24	MS(PEG)24-NH	N-term	■□□□...□□□□
Linkers	PEG 12 (40 atoms) - Amino-PEG-acid	[PEG 12]	Internal	■■■■...■■■■
Linkers	PEG 2 (9 atoms) - 8-Amino-3,6-dioxaoctanoic acid	[PEG 2]	Internal	■■■■...■■■■
Linkers	PEG 20,000 -	PEG 20,000-NH	N-term	■□□□...□□□□
Linkers	PEG 3 (13 atoms) - Amino-trioxadodecanoic acid	[PEG 3]	Internal	■■■■...■■■■
Linkers	PEG 4 (16 atoms) - Amino-PEG-acid	[PEG 4]	Internal	■■■■...■■■■
Linkers	PEG 5 (19 atoms) - Amino-PEG-acid	[PEG 5]	Internal	■■■■...■■■■
Linkers	PEG 5000 -	CO-PEG 5000	C-term	□□□□...□□□■
Linkers	PEG 5000 - Amino-PEG-acid	[PEG 5000]	Internal	■■■■...■■■■
Linkers	PEG 6 (22 atoms) - Amino-PEG-acid	[PEG 6]	Internal	■■■■...■■■■
Linkers	PEG 8 (28 atoms) - Amino-PEG-acid	[PEG 8]	Internal	■■■■...■■■■
Linkers	PEG-4 Azide -	N3-PEG4-NH	N-term	■□□□...□□□□
Special AAs	2-(4'-Pentenyl)alanine -	[A(pentenyl)]	Internal	■■■■...■■■■
Special AAs	2,3-Diaminopropionic acid - DAP	[DAP]	Internal	■■■■...■■■■
Special AAs	2-Indanyl-Glycine - Igl	[Igl]	Internal	■■■■...■■■■
Special AAs	3,3-Diphenyl-Alanine -	[A(F2)]	Internal	■■■■...■■■■
Special AAs	3,4-Dihydroxy-Phenylalanine -	[F(OH)2]	Internal	■■■■...■■■■
Special AAs	5,5-Dimethyl-Proline -	[P(Me2)]	Internal	■■■■...■■■■
Special AAs	5-Hydroxy-Tryptophan -	[W(OH)]	Internal	■■■■...■■■■
Special AAs	Allyl-Glycine - 2-Aminopent-4-enoic acid	[G(allyl)]	Internal	■■■■...■■■■
Special AAs	alpha-Allylalanine -	[Allyl-A]	Internal	■■■■...■■■■
Special AAs	alpha-t-butylglycine -	[G(tBu)]	Internal	■■■■...■■■■
Special AAs	Aminobenzoic acid - Abz	[Abz]	Internal	■■■■...■■■■
Special AAs	Aminobutyric acid - Abu	[Abu]	Internal	■■■■...■■■■
Special AAs	Aminocyclohexyl carbox. acid - Ac6c	[Ac6c]	Internal	■■■■...■■■■
Special AAs	Aminoisobutyric acid - Aib	0	Internal	■■■■...■■■■
Special AAs	Asp beta-methyl ester - Asp(OMe)	[D(OMe)]	Internal	■■■■...■■■■
Special AAs	Asp(Isopropylamide) -	[D(Isopropylamide)]	Internal	■■■■...■■■■
Special AAs	Azetidine-2-carboxylic acid - Aze	[Aze]	Internal	■■■■...■■■■
Special AAs	Canavanine - Cav	[Cav]	Internal	■■■■...■■■■
Special AAs	Citrulline -	[Cit]	Internal	■■■■...■■■■
Special AAs	Cyclopentyl-Glycine -	[G(cyclopentyl)]	Internal	■■■■...■■■■
Special AAs	Cysteic acid - Cya	[Cya]	Internal	■■■■...■■■■
Special AAs	Cysteine sulfonate -	[C(SO3H)]	Internal	■■■■...■■■■
Special AAs	D-2-Indanyl-Glycine - D-Igl	[D-Igl]	Internal	■■■■...■■■■
Special AAs	D-4-Hydroxyphenly-Glycine - D-Hpg	[D-Hpg]	Internal	■■■■...■■■■
Special AAs	D-Alanine -	*A	Internal	■■■■...■■■■
Special AAs	D-Amino Acid -	[D-aa]	Internal	■■■■...■■■■
Special AAs	D-Arginine -	*R	Internal	■■■■...■■■■
Special AAs	D-Asparagine -	*N	Internal	■■■■...■■■■
Special AAs	D-Aspartic acid -	*D	Internal	■■■■...■■■■
Special AAs	D-Cysteine -	*C	Internal	■■■■...■■■■
Special AAs	D-Glutamic acid -	*E	Internal	■■■■...■■■■
Special AAs	D-Glutamine -	*Q	Internal	■■■■...■■■■
Special AAs	D-Histidine -	*H	Internal	■■■■...■■■■
Special AAs	D-Homocysteine -	[D-Homocys]	Internal	■■■■...■■■■
Special AAs	D-Homoserine -	[D-Homoser]	Internal	■■■■...■■■■
Special AAs	Diaminotrioxatridecan suc. ac. - TTDS	[TTDS]	Internal	■■■■...■■■■
Special AAs	D-Isoleucine -	*I	Internal	■■■■...■■■■
Special AAs	D-Leucine -	*L	Internal	■■■■...■■■■
Special AAs	D-Lysine -	*K	Internal	■■■■...■■■■
Special AAs	D-Methionine -	*M	Internal	■■■■...■■■■
Special AAs	D-Ornithine -	[D-Orn]	Internal	■■■■...■■■■
Special AAs	D-Phenylalanine -	*F	Internal	■■■■...■■■■
Special AAs	D-Proline -	*P	Internal	■■■■...■■■■
Special AAs	D-Serine -	*S	Internal	■■■■...■■■■
Special AAs	D-Threonine -	*T	Internal	■■■■...■■■■
Special AAs	D-Tryptophan -	*W	Internal	■■■■...■■■■
Special AAs	D-Tyrosine -	*Y	Internal	■■■■...■■■■
Special AAs	D-Valine -	*V	Internal	■■■■...■■■■
Special AAs	Formylglycine -	[G(CHO)]	Internal	■■■■...■■■■
Special AAs	gamma-Carboxyglutamic acid - Gla	[Gla]	Internal	■■■■...■■■■
Special AAs	Gamma-Glu, amidated - Gla, amidation at side chain	[Gla amide]	Internal	■■■■...■■■■
Special AAs	Glu gamma-methyl ester - Glu(OMe)	[E(OMe)]	Internal	■■■■...■■■■
Special AAs	Homo-Citrulline -	[Homocit]	Internal	■■■■...■■■■
Special AAs	Homophenylalanine -	[HomoF]	Internal	■■■■...■■■■
Special AAs	Hydroxy-Proline - Hyp	[Hyp]	Internal	■■■■...■■■■
Special AAs	Hyposine - Hpu	[Hpu]	Internal	■■■■...■■■■
Special AAs	Isoaspartic acid -	0	Internal	■■■■...■■■■
Special AAs	Kynurenine - Kyn	[Kyn]	Internal	■■■■...■■■■
Special AAs	Mercaptopropionic acid - Mpa	[Mpa]	Internal	■■■■...■■■■
Special AAs	Methionine-sulfone -	[M(O2)]	Internal	■■■■...■■■■
Special AAs	Methionine-sulfoxide -	[M(O)]	Internal	■■■■...■■■■
Special AAs	N-Formylkynurenine -	[Formyl-Kyn]	Internal	■■■■...■■■■
Special AAs	Norleucine -	[Nle]	Internal	■■■■...■■■■
Special AAs	Norvaline - 2-Aminopentanoic acid, Nva	[Nva]	Internal	■■■■...■■■■
Special AAs	Octahydroindole carbox. acid -	[Oic]	Internal	■■■■...■■■■
Special AAs	Ornitine -	[Orn]	Internal	■■■■...■■■■
Special AAs	para-Acetylphenylalanine - pAF	[para-Ac-Phe]	Internal	■■■■...■■■■
Special AAs	Phenylglycine - Phg	[Phg]	Internal	■■■■...■■■■
Special AAs	Pyroglutamic acid - Pyr	[Pyr]	Internal	■■■■...■■■■
Special AAs	Selenocysteine - Sec	[Sec]	Internal	■■■■...■■■■
Special AAs	β-Alanine -	[β-A]	Internal	■■■■...■■■■
Special AAs	β-Cyclohexyl-Alanine - Cha	[Cha]	Internal	■■■■...■■■■
Special AAs	β-cyclohexyl-D-Alanine - D-Cha	[D-Cha]	Internal	■■■■...■■■■
Special AAs	Tetrahydroisquinol.carb.acid - Tic	[Tic]	Internal	■■■■...■■■■
Special AAs	Thiazolidine-4-carboxylic acid - Thz	[Thz]	Internal	■■■■...■■■■
Special AAs	γ-Glutamic acid -	[γ-E]	Internal	■■■■...■■■■
PTM	1-Methyl-Tryptophan -	[W(1-Me)]	Internal	■■■■...■■■■
PTM	2,6-Dimethyl-Tyrosine -	[Y(Me2)]	Internal	■■■■...■■■■
PTM	2-Methylproline -	[P(2-Me)]	Internal	■■■■...■■■■
PTM	Dimethyl-Arginine (asym.) -	[R(Me)2-asym]	Internal	■■■■...■■■■
PTM	Dimethyl-Arginine (sym.) -	[R(Me)2-sym]	Internal	■■■■...■■■■
PTM	Dimethyl-Cysteine - Penicillamine	[Pen]	Internal	■■■■...■■■■
PTM	Dimethyl-Lysine -	[K(Me)2]	Internal	■■■■...■■■■
PTM	Dimethyl-Phenylalanine -	[F(Me)2]	Internal	■■■■...■■■■
PTM	Dimethyl-Valine -	[V(Me)2]	Internal	■■■■...■■■■
PTM	Methyl-Arginine -	[R(Me)]	Internal	■■■■...■■■■
PTM	Methyl-Lysine -	[K(Me)]	Internal	■■■■...■■■■
PTM	N-Methyl-Glycine -	[G(N-Me)]	Internal	■■■■...■■■■
PTM	N-Methyl-Leucine -	[L(N-Me)]	Internal	■■■■...■■■■
PTM	N-Methyl-Phenylalanine -	[F(N-Me)]	Internal	■■■■...■■■■
PTM	N-Methyl-Tyrosine -	[Y(N-Me)]	Internal	■■■■...■■■■
PTM	N-Methyl-Valine -	[V(N-Me)]	Internal	■■■■...■■■■
PTM	Phosphono-Phenylalanine -	[F(PO3H2)]	Internal	■■■■...■■■■
PTM	Phospho-Serine -	[S(PO3H2)]	Internal	■■■■...■■■■
PTM	Phospho-Threonin -	[T(PO3H2)]	Internal	■■■■...■■■■
PTM	Phospho-Tyrosin -	[Y(PO3H2)]	Internal	■■■■...■■■■
PTM	β-GalNAc-Threonine -	[T(β-GalNAc)]	Internal	■■■■...■■■■
PTM	β-GlcNAc-Asparagine -	[N(β-GlcNAc)]	Internal	■■■■...■■■■
PTM	β-GlcNAc-Serine -	[S(β-GlcNAc)]	Internal	■■■■...■■■■
PTM	β-GlcNAc-Threonine -	[T(β-GlcNAc)]	Internal	■■■■...■■■■
PTM	Sulfuryl-Serine -	[S(SO3H)]	Internal	■■■■...■■■■
PTM	Sulfuryl-Threonine -	[T(SO3H)]	Internal	■■■■...■■■■
PTM	Sulfuryl-Tyrosine -	[Y(SO3H)]	Internal	■■■■...■■■■
PTM	Trimethyl-Arginine -	[R(Me3)]	Internal	■■■■...■■■■
PTM	Trimethyl-Lysine -	[K(Me)3]	Internal	■■■■...■■■■
PTM	α-GalNAc-Serine -	[S(α-GalNAc)]	Internal	■■■■...■■■■
PTM	α-GalNAc-Threonine -	[T(α-GalNAc)]	Internal	■■■■...■■■■
PTM	α-Mannosyl-Serine -	[S(α-Mannosyl)]	Internal	■■■■...■■■■
PTM	α-Mannosyl-Threonine -	[T(α-Mannosyl)]	Internal	■■■■...■■■■
PTM	α-Methyl Aspartic acid -	[D(α-Me)]	Internal	■■■■...■■■■
PTM	α-Methyl Glutamic acid -	[E(α-Me)]	Internal	■■■■...■■■■
Isotopic	Heavy Ala (13C3;15N) -	[A(13C3; 15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Ala (D3) -	[A(D3)]	Internal	■■■■...■■■■
Isotopic	Heavy Arg (13C6) -	[R(13C6)]	Internal	■■■■...■■■■
Isotopic	Heavy Arg (13C6;15N4) -	[R(13C6; 15N4)]	Internal	■■■■...■■■■
Isotopic	Heavy Asn (13C4;15N2) -	[N(13C4; 15N2)]	Internal	■■■■...■■■■
Isotopic	Heavy Asp (13C4;15N -	[D(13C4; 15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Gln (13C5;15N2) -	[Q(13C5;15N2)]	Internal	■■■■...■■■■
Isotopic	Heavy Glu (13C5;15N) -	[E(13C5; 15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Gly (13C2;15N) -	[G(13C2; 15N)]	Internal	■■■■...■■■■
Isotopic	Heavy His (15N3) -	[His(15N3)]	Internal	■■■■...■■■■
Isotopic	Heavy Ile (13C6;15N) -	[I(13C6; 15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Leu (13C1) -	[L(13C1)]	Internal	■■■■...■■■■
Isotopic	Heavy Leu (13C6) -	[L(13C6)]	Internal	■■■■...■■■■
Isotopic	Heavy Leu (13C6;15N) -	[L(13C6; 15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Leu (D10) -	[L(D10)]	Internal	■■■■...■■■■
Isotopic	Heavy Leu (D3) -	[L(D3)]	Internal	■■■■...■■■■
Isotopic	Heavy Lys (13C6) -	[K(13C6)]	Internal	■■■■...■■■■
Isotopic	Heavy Lys (13C6;15N2) -	[K(13C6; 15N2)]	Internal	■■■■...■■■■
Isotopic	Heavy Phe (13C9;15N) -	[F(13C9; 15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Pro (13C5;15N) -	[P(13C5; 15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Ser (13C3;15N) -	[S (13C3;15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Ser (D3) -	[S(D3)]	Internal	■■■■...■■■■
Isotopic	Heavy Thr(13C4;15N) -	[T(13C4;15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Trp (13C11;15N2) -	[W (13C11;15N2)]	Internal	■■■■...■■■■
Isotopic	Heavy Tyr (13C9;15N) -	[Y (13C9; 15N)]	Internal	■■■■...■■■■
Isotopic	Heavy Val (13C5) -	[V(13C5)]	Internal	■■■■...■■■■
Isotopic	Heavy Val (13C5;15N) -	[V(13C5; 15N)]	Internal	■■■■...■■■■
Isotopic	L-tyrosine-phenyl-d4 - deuterated Tyr	[Tyr(D4)]	Internal	■■■■...■■■■
Isotopic	TMT6-126 -	TMT6-126-NH	N-term	■□□□...□□□□
Isotopic	TMT6-127 -	TMT6-127-NH	N-term	■□□□...□□□□
Isotopic	TMT6-128 -	TMT6-128-NH	N-term	■□□□...□□□□
Isotopic	TMT6-129 -	TMT6-129-NH	N-term	■□□□...□□□□
Isotopic	TMT6-130 -	TMT6-130-NH	N-term	■□□□...□□□□
Isotopic	TMT6-131 -	TMT6-131-NH	N-term	■□□□...□□□□
Immunization	BSA -	CO-BSA	C-term	□□□□...□□□■
Immunization	BSA via Glutaraldehyde -	BSA-NH	N-term	■□□□...□□□□
Immunization	Cys(BSA) -	[C(BSA)]	Internal	■■■■...■■■■
Immunization	Cys(KLH) -	[C(KLH)]	Internal	■■■■...■■■■
Immunization	Cys(OVA) -	[C(OVA)]	Internal	■■■■...■■■■
Immunization	KLH -	CO-KLH	C-term	□□□□...□□□■
Immunization	KLH via Glutaraldehyde -	KLH-NH	N-term	■□□□...□□□□
Immunization	Lys(BSA) -	[K(BSA]	Internal	■■■■...■■■■
Immunization	Lys(KLH) -	[K(KLH]	Internal	■■■■...■■■■
Immunization	MAP 16 - Crude 8-20 aa, at C-term. only	MAP 16	C-term	□□□□...□□□■
Immunization	MAP 4 - Crude 8-20 aa, at C-term. only	MAP 4	C-term	□□□□...□□□■
Immunization	MAP 8 - Crude 8-20 aa, at C-term. only	MAP 8	C-term	□□□□...□□□■
Immunization	OVA -	CO-OVA	C-term	□□□□...□□□■
Cyclization/Dimerization/Special Synthesis	3-Azido-Alanine - Aza	[Aza]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	6-Azido-Norleucine - Nle(N3)	[Nle(N3)]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Azidohomoalanine - Aha/ Dab(N3)	[Aha]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Azido-Lysine -	[K(N3)]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Cyclisation (C-C), disulfide -	[C cyclo(S-S)]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Cyclisation (D-K), amide bond -	[ ]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Cyclisation (E-K), amide bond -	[ ]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Cyclisation (K-C-terminus) - side chain of K to C-terminus	[ ]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Cyclisation (NH-CO), homodetic -	[ ]	N-term	■□□□...□□□■
Cyclization/Dimerization/Special Synthesis	Double disulfide -	[C cyclo(S-S)]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	D-Propargylglycine - D-Pra	[D-Pra]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Hetero-Dimer -	[ ]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Homo-Dimer -	[ ]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Mixed amino acids -	[X]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	para-Azido-Phenylalanine -	[F(N3)]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Propargylglycine - Pra	[Pra]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Side chain coupling to Lys - Asymmetric Sequence	[K]	Internal	■■■■...■■■■
Cyclization/Dimerization/Special Synthesis	Side chain coupling to Lys - Symmetric Sequence	[K]	Internal	■■■■...■■■■