2 rue des Gravilliers - 75003 Paris - France
Tel. : +33 142 71 70 21 - Fax : +33 142 71 70 23
email : info@genosphere-biotech.com

Custom Peptide

Product & Service Offer
Standard Synthesis Offer

Purification is performed by preparative or semi-preparative reverse-phase HPLC.
We routinely prepare longer peptides (Fig 1) up to a maximum length of approximately 90 aa. Because overall yield decreases exponentially with increasing length, synthesis and downstream processing times may increase significantly for longer sequences.

click here to enlarge Fig. 1.

Ultra-Pure Peptides (>99% Purity Level -Cell Culture Grade)
This unique peptide grade includes an additional purification step following standard reversed-phase HPLC elution. It was developed by Genosphere Biotechnologies in collaboration with several Research Groups using our peptides in cell culture assays. It has been tested with a large number of cell types and exhibit no detectable cytotoxicity commonly associated with standard peptides at higher concentrations.
It has also proven to yield peptides with high activity in sensitive biochemical assays.
Another noteworthy feature is a considerably increased stability of the peptides in aqueous solutions.

Optional Analytical Service
Amino-Acid Analysis is available at additional charge.

Modification Offer List

Carrier Conjugation for Immunization
Standard carrier is KLH, but we also offer other proteins (BSA, OVA) or Multiple Antigenic Peptide (MAP).
Deliverables: 5 to 10 mg of free peptide at the requested purity level & 15 mg of peptide conjugate.

click here to enlarge Fig. 2.

Ordering Guideline (see also General Ordering Information)
Pricing & Quotation
You may find our pricing table guideline for standard quantity/purity offer at: Pricing

Although indicated prices will be met most of the time, all sequences are subject to technical evaluation and are quoted individually.

You may use our On-Line Quotation Form

Or if you wish to e-mail or fax, please indicate sequences (N to C terminus), mg amount , purity level, and modifications required. Please include your Fax and Telephone number when submitting a request for quotation as all our quotations are normally sent by fax..

Product shipment
All peptides are shipped lyophilised by express courier at RT with a complete synthesis report that includes:
- An analytical reversed-phase HPLC trace (u.v. detection at 220 nm) - fig 3.
- A mass spectrum (MALDI-TOF) - fig 4.

Click here to enlarge Fig. 3.

Click here to enlarge Fig. 4.

Ordering
An On-Line Order Form is available for your convenience. You may order by fax or e-mail as well.

For administrative purposes, we do require a copy (FAX or POST) of your institutional purchase order in all cases.
Please write sequences N to C termini and kindly use one-letter code designation of amino-acids for quotation requests and orders.