Protein Sequencing Service

Protein molecules play a key role in the scientific research of biochemistry, kit development, diagnostic reagent development and drug development. The protein primary sequence determines the high-level structure of the protein and affects the function of the protein. Accurate and rapid analysis of protein sequences to verify the integrity and correct translation of protein samples is also helpful for the function research of unknown proteins.

Creative Proteomics aims to provide high-quality proteomics-related services to customers in various fields. Our scientists develop a protein sequencing platform based on professional knowledge and advanced equipment, which can provide accurate and reliable protein N/C terminal sequencing, protein de novo sequencing and mutation analysis, and protein full spectrum analysis.

Protein N/C terminal sequencing service

Determine the amino acid sequence at the N- and/or C-terminus of a protein.

• Edman degradation method: N-terminal sequence analysis of protein samples. The Edman degradation method cannot be used to analyze the protein sequence when the N-terminal is blocked or chemically modified.
• Mass spectrometry: The N-terminal sequence and C-terminal sequence of the protein can be determined simultaneously. The N-terminal sequencing technology based on mass spectrometry can realize the sequence determination of N-terminal blocked and PEGylated proteins, which is complementary to Edman sequencing. This analysis can be used to confirm whether the recombinant protein is fully expressed, to detect whether the recombinant protein expression process is broken, and whether the N-terminal and C-terminal sequences of the recombinant protein are modified.
• Sample requirement: 5-10ug/protein.

De novo protein sequencing and mutation analysis service

Full protein sequence coverage can be achieved. Suitable for sequence analysis of novel proteins that have not been previously reported, or proteins that have been purified from a novel species, as well as for sequence and mutation analysis of unknown proteins.

• Mass spectrometry: High-resolution Nano HPLC-Orbitrap Fusion Lumos Tribrid? Mass Spectrometer enables rapid and accurate determination of protein sequences.
• Sample requirement: Normal amount: 500ug/protein. Minimum amount: 200ug/protein.

Protein full spectrum analysis

It is mainly used for the comprehensive analysis of the protein species contained in unknown samples. Full spectrum protein analysis based on mass spectrometry technology can obtain as much protein information as possible, which can provide reference information for high-throughput quantitative and modification analysis of proteins. A systematic and comprehensive study of as many proteins as possible in a tissue or cell can identify up to 6,000 proteins.

• Sample requirement: ≥200μg/protein, concentration ≥0.5μg/μL.

Advantages of the protein sequencing service

• One-stop service: Customize exclusive solutions for you according to your testing purpose and budget.
• Professional technology platform: Based on high resolution (greater than 10⁵), high quality accuracy (less than 1ppm) mass spectrometry platform to ensure the accuracy of identification results.
• Advanced data processing algorithms: Developed the calculation method of mass spectrum raw data. Adopt the principle of wide entry and narrow exit. The protein sequence can be accurately identified without missing any valid data information.
• Wide range of application: no species-specific restrictions, can be applied to all species in theory.