proteomics
Missed cleavages and ragged ends
How an internal lysine or arginine differs from a ragged peptide end, what a high missed-cleavage rate says about the digest, and how search settings affect the result.
8 October 2026 · 10 min read
Knowledge centre
Methods a laboratory can check.
Guides, method explainers and sourcing notes for research laboratories. Written by the EVRINTH Editorial Team from published methods, with catalogue links for enquiry rather than stock claims.
All topicsBuffers and laboratory water26Cell culture26Chromatography26Cold chain and sample storage26Cytometry and microscopy26DNA sequencing26Gels and blotting26Gene expression26Genome editing26Immunoassays26Laboratory labware26Laboratory safety26Liquid handling26Microbiology26Molecular cloning26Nucleic acid purification26PCR and amplification26Protein biochemistry26Proteomics26Research sourcing and study design26
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520 articles
gels and blotting
Molecular weight markers for proteins
Choose a protein marker that brackets the target, and keep a prestained ladder from being the only standard for apparent mass.
8 October 2026 · 8 min read
liquid handling
Monsoon humidity and weighing a check
Read monsoon humidity as a weighing problem: static, drift, condensation, and slower evaporation, before you blame the pipette.
8 October 2026 · 7 min read
genome editing
Mosaicism in edited embryos as a concept
If a nuclease stays active across cleavage divisions, different cells can carry different alleles. One biopsy reports those cells, not the whole organism.
8 October 2026 · 8 min read
research sourcing
Multi-item quotes and one scientific aim
Group quotation lines under one experiment and mark the reagent the aim cannot survive without, so a long cart cannot hide a gap.
8 October 2026 · 9 min read
liquid handling
Multichannel technique on a 96-well plate
Compare single-channel and multichannel work on a 96-well plate, including tip seating, depth, angle, and the bias a loose tip leaves.
8 October 2026 · 7 min read
pcr amplification
Multiplex PCR primer compatibility
How to tell whether multiplex primer pairs share a window, avoid cross-dimers, and make sizes a gel can separate when the long product drops out.
8 October 2026 · 7 min read
gels and blotting
Native versus denaturing gels
Decide native or denaturing from the question, then troubleshoot a band that shifts or vanishes when a reducing agent is added.
8 October 2026 · 8 min read
Pillar · dna sequencing
Next-generation sequencing from library to reads
How a sequencing library becomes reads: adapters, flow cells, quality scores and the checks that stop a bad library from wasting a run.
8 October 2026 · 8 min read
chromatography
Normal phase is a different solvent logic
Choose normal phase only when its polar stationary phase and non-polar mobile phase match the analyte better than reversed phase.
8 October 2026 · 7 min read
gene expression
Normalisation is a choice
Why library size, median-ratio, TMM and TPM answer different questions, and why the normalisation method belongs in the result.
8 October 2026 · 9 min read
gels and blotting
Northern blot concepts for RNA
Plan a northern blot at decision level: intact RNA, a denaturing gel, transfer, and a probe that reports transcript size rather than an RNA-seq count.
8 October 2026 · 8 min read