Tailor made services based on your research project requirements

Recombinant Protein Expression & Purification

We proudly offer this service for investigators who don’t have gene or construct for their needed recombinant protein expression and purification. We’ll PCR-amplify gene or if needed synthesize the optimized gene, sub-clone it into an expression vector and express it as tag protein using E.coli or baculovirus or mammalian expression system of your choice. For this service all we need from you is the name of gene or accession number.

E.coli expression system is very useful to produce large amount of recombinant proteins comparatively at lower cost. We provide this service to generate fusion proteins in small to large quantities. A variety of tags (such as GST, 6xHis, MBP) are possible to add at N- or C-terminus. E.coli system’s limitations are lack of post-translation modifications and improper folding of expressed mammalian recombinant proteins. For mammalian proteins that require certain post-translation modification to retain biological activity, it is recommended to use baculovirus or mammalian expression system.

Baculovirus expression system has been very useful for the expression and purification of mammalian proteins. We offer this service for His tag or GST tag fusion protein production in micrograms to grams quantities. Full service is available for this expression system. You can also provide us recombinant baculovirus for stock amplification and recombinant protein expression in sf9 cells.

Those Investigators who prefer to use mammalian expression system for the production of biologically active recombinant proteins can take advantage of our full service. However, we also offer recombinant protein purification service if you provide us expression ready construct. We have capability to purify recombinant protein up to grams quantities using HEK cells.

Please contact us for In vitro Translation and Purification services.

Gene Synthesis & Cloning Services

Clonetex offers state of the art gene synthesis service with no set up fee. We try our best to achieve synthesis of difficult genes with sequence repeats or GC rich contents. We codon-optimize gene for expression in organism of your choice as well as sub-cloned it into pUC or pBSK vector with no extra charge. We can sub-clone your gene into vector of your choice for a nominal fee. You'll have to provide vector of your choice. For a quick non-binding quote please e-mail gene sequence to cs@clonetex.com .

Constructs for Adenovirus Expression System
It is a very strong and efficient system for the simultaneous expression of two or more specific gene(s) in mammalian cells. We provide this service for the construction of your gene of interest. Toxin-free final product is ready to transfect HEK cells for the production of recombinant adenovirus.
Constructs for Baculovirus Expression System
One of the most widely used gene(s) expression system for production of recombinant proteins in Eukaryotic cells (such as sf9, Sf21). We offer cloning services for the construction of gene of your interest in baculovirus-based expression vector(s). Final product is ready to transfect insect cells for the packaging of recombinant baculovirus.
Construction of Gene-specific SiRNA
This revolutionary technique to block the expression of a specific protein(s) in cells or animals has proven to be a reliable and quick approach. We'll take care of your SiRNA construct from designing of the specific primers to its cloning in a SiRNA expression vector. We also provide SiRNA duplex synthesis service with desired modifications such as biotin.

This service is provided for sub-cloning of gene/cDNA into vector of your choice. For accuracy, recombinant clones will be verified by restriction analysis. A project report with detail analysis and 10 mg of final product will be supplied. Customer supplies the specific gene/ cDNA and vector.

PCR

We'll design and make gene-specific primers for PCR amplification from a cDNA library. We'll buy commercially available specific cDNA library if customer can not provide it. PCR amplified cDNA fragment will be sub-cloned in TA cloning vector or in a vector of your choice. Recombinant clones will be verified by restriction fragment analysis. For accuracy, two selected clones will be sequenced. A project report with detail analysis and 10 mg of final product will be supplied.

RT-PCR

We'll reverse transcribe and PCR amplify specific gene from customer’s provided total RNA/mRNAs. Amplified fragment will be ligated in TA vector or in vector of your choice. Two clones will be sequenced for the validity of clones. A project report with detail analysis and 10 mg of final product will be supplied.

Antibody Production & Custom Peptide Synthesis

The customer must select one carrier protein and one conjugation chemistry for the conjugation of the peptide/protein/antigen. Details
Options after Completion of 70 Day-Standard Protocol. Click here to View Services
Price guide line ($/amino acid) for Custom Peptide synthesis for peptide up to 30 amino acids in length. Click here to View Services
Custom Sera (70-Day Protocol) Packages

Package
Custom Service
List Price
CSI-PA1 Std 70-Day Protocol including: ■ 1 Rabbits ■ 6 Immunizations/Rabbit ■ 1 Pre-immune Bleed ■ 2 Production Bleeds ■ 5 ELISA tests ■ Design and synthesis of 5 mg of <90% pure peptide ■ Conjugation of 1.5-2mg of peptide to carrier protein ■ 2.0 mg of Free peptide to customer $750
CSI-PA2 Std 70-Day Protocol including: ■ 2 Rabbits ■ 6 Immunizations/Rabbit ■ 1 Pre-immune Bleed ■ 2 Test bleeds ■ 2 Production Bleeds ■ 5 ELISA tests (on all five bleeds) ■ Design and synthesis of 10 mg of <90% pure peptide ■ Conjugation of 3-4 mg of peptide to carrier protein ■ 2.5 mg of Free peptide to customer $950
CSI-PA3 CSI-PA1 package plus Peptide-Affinity purification of production Bleed. $1495
CSI-PA4 CSI-PA2 package but without any Design, synthesis, conjugation or Free peptide. Customer provides a Pre-conjugated, ready-to-inject antigen. $800
Custom Anti-sera Production in Rabbits (Standard 70 Day-Protocol)

Days in protocol
Procedure
Sera/ Rabbit
Service Performed
Day 0/ Wk-1 Pre-immune bleed from rabbits & Immunization I 2.5-5 ml ELISA using peptide
Day 14/ Wk-2 First boost SC none Physical check up of animals
Day 28/ Wk-4 Second boost SC. First test bleed 5 ml ELISA using peptide.
*Serum shipped to investigator
Day 42/ Wk-6 Third boost SC. Second test bleed 5 ml ELISA using peptide.
*Serum shipped to investigator
Day 56/ Wk-8 Fourth boost SC. First production bleed 15-20 ml ELISA using peptide.
*Serum shipped to investigator
Day 70/ Wk-10 Fifth boost SC. Second production bleed 15-20 ml ELISA using peptide.
*Serum shipped to investigator

* All bleeds are shipped together unless requested.

Conjugation

The customer must select one carrier protein and one conjugation chemistry (MBS, EDC, Bdt or Glutaraldehyde) for the conjugation of the peptide/protein/antigen.

Amount of Peptide/Protein Antigen for Conjugation
Carrier Protein
KLH
BSA
Ovalbumin
Other
3-4 mgs $125 $125 $125 Enquire
5-8 mgs $225 $225 $225 Enquire
Options after Completion of 70 Day-Standard Protocol.

Catalog #
Options
Service
Charges/ Rabbit
PROJ-01 Termination of host animals Termination of host animals WITHOUT collection of Serum $75
PROJ-02 Exsanguination of host animals Termination of host animals AFTER collecting 25-50 ml serum/Rabbit $225
PROJ-03 Extension of Protocol Maintenance of animals/ Immunization & 2 Production bleeds $345/month
Additional Services

Catalog #
Service
Description
List Price
ELISA-01 ELISA ELISA on test & Pre-immune bleeds at 5 serial dilutions $75
AFP-S40 Affinity Purification Couple Peptide to affinity matrix, purify 40 ml sera, ELISA on purified sample $850
AFG-S40 Protein-G Purification Purify 40 ml sera on a Protein-A column, ELISA on purified sample $925
AFA-S40 Protein A-purification Purify 40 ml sera on a Protein-G column, ELISA on purified sample $1025
Custom Peptide Synthesis

Following is the price guide line ($/amino acid) for Custom Peptide synthesis for peptide up to 30 amino acids in length. Quality assurance data (HPLC and MS) is provided for each order. Prices are in US$ and does not include shipping & handling charges. Discounts are available for bulk quantities.

Amount
Purity
CRUDE
DESALTED
70%
75%
80%
85%
90%
95%
98%
1 mg 3.9 5.2 6.9 9.0 10.5 11.4 12.5 14.1 20.1
5 mg 4.8 6.0 8.2 10.3 11.8 13.5 15.8 16.3 23.7
10 mg 5.8 7.5 9.5 11.9 13.9 15.7 18.4 19.1 27.8
15 mg 6.2 7.9 10.1 12.7 15.2 18.2 21.2 21.2 31.0
20 mg 6.5 8.2 11.1 15.0 17.1 20.1 23.9 24.2 35.4
25 mg 6.8 8.5 12.0 16.6 18.8 21.4 25.1 26.1 38.2
30 mg 7.0 9.0 13.7 17.8 19.9 22.4 28.0 28.6 40.9
40 mg 8.0 9.8 14.3 18.2 20.7 23.7 29.4 30.2 43.5
50 mg 8.4 10.3 15.7 20.8 23.2 25.9 31.3 32.1 46.3
60 mg 9.9 11.4 19.3 24.3 26.6 28.7 35.1 36.5 52.2
80 mg 10.2 11.7 21.5 28.5 31.1 34.2 41.2 42.3 61.4
1000 mg 35.5 38.0 66.8 94.0 96.9 104.2 112.5 125.0 186.4
Amino acid modifications

Some of the modifications of peptides we offer are listed below. Please enquire about other possible modifications. The prices listed below are for modification of 10 mg of peptide.

Modification
Price
Acetylation (N-Terminal) Free
Amidation (C-Terminal) Free
Biotin (N-Terminal) $75
Biotin (C-Terminal) $215
Aminohexanoic acid (Ahx) $49
Citrulline (Cit) $49
Hydroxyproline (Hyp) $49
Myristic acid (Myr) $49
Ornithine (Orn) $49
Phosphorylation-Serine $170
Phosphorylation-Threonine $170
Phosphorylation-Tyrosine $170
Cyclization $215
Disulfide Bridge $215
Fluorescence/Dye Labeling
Price
FITC $170
FAM $170
TAMRA $215
Protein Carrier Conjugation
Price
KLH (Keyhole Limpet hemocyanin) $215
BSA (Bovine serum albumin) $215
OVA (Ovalbumin) $265
Multiple Antigenic Peptide (MAP) System
Price
Asymmetric 4 branches $150
Symmetric 4 branches $150
Asymmetric 8 branches $150
Symmetric 8 branches $150