2274 – Consumables for Molecular Biology

We would expect any successful suppliers to also be able to supply other enzymes (restriction, ligation, reverse transcription, alternative polymerase). Being able to supply GMP grade enzymes is also advantageous. Enzymes purchased on this tender will be used in molecular biology applications to develop R&D processes at CPI at both small scale and large scale, therefore custom bulk volumes of these enzymes are likely to be required. Enzymes should be tested for exonuclease and endonuclease activity. All enzymes should be provided with the manufacturer’s definition of a “unit” of enzyme e.g. “one U of enzyme is defined as the amount of enzyme required to digest xμg of DNA at 37°C in xx minutes in a total reaction volume of xxμl”.

dNTPs and NTPs will be required for use in multiple PCR applications; in vitro transcription; mRNA/saRNA synthesis and cloning. dNTPs and NTPs should be possible of being supplied in sodium or tris salt form and confirmed as RNase, DNase and protease free. The ability to supply alternative salt forms, such as lithium, would be advantageous. These dNTPs and NTPs will be used for a range of applications in both small scale and large scale, it would be beneficial if they could be supplied in custom bulk volumes.

CPI requires the synthesis of primers, DNA oligos, and gene synthesis services. CPI would require random primer sequences and the ability to buy custom synthesised primers for use in PCR/qPCR and would also require custom primer/ oligo synthesis, CPI will provide the sequence information for these primers to be synthesised. We would require primers to be produced at a selection of purities, such as HPLC and salt free. The supply of fluorescently labelled primer probes will also be required under this lot. For gene synthesis, CPI require a flexibility to synthesise a range of sequences varying in size (typically up to 4kb, with varying complexities) with use a variety of plasmid backbone options with a range of antibiotic resistance genes. Due to the need for a quick turnaround on some of CPI’s projects, it would be preferred for suppliers to be able to offer quick synthesis and next day delivery options. Web ordering would also be preferred to enable quick processing of our orders.

CPI would require consumables for the analysis of proteins and nucleic acids by gel electrophoresis. Consumables required include gel loading dyes; RNA, DNA and protein ladders and gel extraction kits. RNA and DNA ladders should span a range of sizes, up to 9kb. Concentrated gel running buffers such as 10XTAE, 10XTBE and MOPS is advantageous. The supply of other purification kits such as gel extraction kits and genomic DNA extraction kits are advantageous.

Concentrated buffers and nuclease free water for use with their associated enzymes during reactions are required. Buffers may be used where specified by the manufacturer in applications which include restriction reactions and in vitro transcription reactions. Page 4 / 6 Buffers must be tested for exonuclease and endonuclease activity and a CoA must be available for each lot number. These buffers are likely to be used in both small scale and large-scale applications and so custom bulk volumes of buffers would be advantageous. GMP grade options are also advantageous.

CPI would require competent cells to be supplied for use in cloning/sub-cloning, protein expression and gDNA/cDNA library production. Competent cells should be in preparations which are free of animal products and should be shipped on dry ice.

CPI require the supply of RNA and DNA purification kits. RNA/DNA purification kits can be either gravity flow, vacuum assisted or spin columns and should cover small scale through to large scale. Multiple types of PCR kits would be required for use in development activities at CPI also, such as RT-PCR and RT-qPCR kits.

CPI require the supply of cell culture media to assist with the testing of therapeutic nucleic acids (DNA/RNA). Cell culture media and feeds are required, as either pre-made sterile solutions or as a powder.

CPI require supply of the RNA co-translational capping agent, cleancap. The supplier must be able to supply various types of therapeutically relevant cleancap analogues, such as AU and AG (in addition to the methylated form).

CPI require columns for use in packed column chromatography during the purification of in vitro transcribed mRNA. Where columns are not supplied pre-packed, suitable chromatography media should be supplied for manual column packing. Columns should be certified to sterile and free of ribonucleases. A CoA should be supplied for each lot. Columns may be used for small and large scale, preparative and analytical applications. As a result, the column length, diameter, media composition and mode of adsorption may vary significantly between purchases. Columns and media which comply with GMP specifications are preferred.

CPI require AAV material as a control or standard for downstream and analytical assays such as ELISA and western blotting. This material would be used to check the validity of assays and act as a comparison to in-house generated samples. Further, the material would be used to develop and validate methods for different analyses prior to analysis of samples generated in-house. The material required would need to be of a high purity with the associated CoA for each item purchased.

CPI require the supply of ELISA kits for the detection of proteins during the production of different therapeutics such host cell protein contaminants, recombinant therapeutic proteins and AAV particles. A range of kits are required that target and confirm the presence of specific protein targets in samples. For AAV analysis, different serotypes exist, and specific kits allow the distinction between these types and confirm the formation of AAV particles. ELISA kits are required to be specific to the intended target and include the CoA/quality control certificates.

CPI require reporter assays as an efficient method to measure cell health during experiments. Assays allow of aspects such as product related toxicity and detect differences in cell growth. A range of kits are required that allow real-time measurements, compatibility with manual handling and/or automation. Reporter assays are required to provide high sensitivity, accurate, stable readouts and applicable across different cell types with the necessary CoA/quality control certificates.

CPI require the supply of transfection reagents to deliver nucleic acids in different formats (RNA/DNA) into cells for the testing or production of therapeutics. A wide range of reagents are required as the transfection reagent used can depend on the nucleic acid type, cell system and scale. Transfection reagents would be required in a sterile pre-made solution or Page 6 / 6 as a powder for use at small and large-scale with the CoA/quality control certificates. GMP-grade material would also be advantageous.