Modified/Fluorescent Labeled Peptides

Peptide modification mainly modifies the backbone and side chain groups of the peptide. The modified peptide can significantly reduce immunogenicity, reduce side effects, improve solubility, prolong the duration of action in the body, and change the distribution in the body.

GenCefe provides over 300 different peptide modification groups, including: N-terminal modifications, C-terminal modifications, fluorescent labeling, cyclic peptides, biotin labeling, etc.

Modifications

N terminal	C terminal	Other Modifications
Acetylation (Ac)	Amidation	Biotin and FITC Labeling
Formylation (For)	AMC	Disulfide Bridge
Fatty Acid	Aldehyde ^New	Phosphorylation
Benzoyl (Bz)	Alcohol ^New	BSA, KLH, OVA Conjugation
Benzyloxycarbonylation (CBZ)	Ester (OMe, OEt) ^New	PEGylation
Bromoacetyl (Br-Ac)	p-Nitroaniline (pNA)	MAPS
Pyroglutamyl (pGlu) (Pyr)	NHMe, NHEt and Nhisopen	Cyclic Peptide
Succinylation (Suc)	tBu	Quenched Fluorescent Peptide
Tertbutoxycarbonyl (Boc)	TBzl	Special Amino Acid
3-Mercaptopropyl (Mpa)	Cysteamide (Cya)	Methyl and N-Methyl

Only commonly used modifications are listed in the table. If the modification you need is not in the list, please contact sales or technical support for consultation.

Fluorescent Labeling

Fluorescent dyes	Excitation wavelength（nm）	Emission wavelength（nm）	Fluorescent dyes	Excitation wavelength（nm）	Emission wavelength（nm）
Cy2	489	506	Rhodamine B	555	580
GFP (Red Shifted)	488	507	TAMRA	560	582
FITC	494	518	Cy3.5	581	596
5-FAM	494	522	Texas Red	595	615
Cy3	550	570	Cy5	649	670
TRITC	547	572	Cy5.5	675	694

The table is a partial list of fluorescent dyes. If the fluorescent group you need is not in the list, please contact sales or technical support for consultation.

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