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#molecular analysis

2 public questions tagged with this topic.

Hybridization

Analytical microarrays are used to detect:

Analytical protein microarrays, also known as capture arrays, are designed to profile protein abundance, interactions, and activity across proteome using immobilized antibodies or bait proteins. Sample proteins labeled or unlabeled are incubated, and binding patterns reveal protein-protein, protein-DNA, protein-drug, or enzyme-substrate interactions quantitatively. Unlike pure detection of single protein class, analytical format maps interactomes, cross-reactivity, and binding affinities in multiplexed manner. Techniques focusing only on RNA or DNA replication employ nucleic acid microarrays o

Ref: NCERT Biology Class XII Principles on Klenow fill-in labeling, Lehninger Chapter 9 DNA cloning techniques, and Molecular Cloning by Sambrook Chapter 10 documenting end-labeling of cohesive termini.

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X Ray, IR Spectroscopy

Which MS peak indicates dimer formation?

Oligomeric state assessment by mass spectrometry compares observed mass to theoretical monomer mass. Monomeric protein yields dominant peak near expected mass M for singly charged ion, with possible charge envelope for electrospray. Noncovalent dimerization or disulfide-linked dimer doubles molecular weight, producing additional signal near 2M, sometimes with its own charge series. Observing half mass would indicate doubly charged monomer or proteolytic fragment, single peak suggests pure monomer, triplet pattern often signals isotopic distribution or chlorine adducts. Detection of double-mass

Ref: NCERT Biology Class XII Principles on Klenow fill-in labeling, Lehninger Chapter 9 DNA cloning techniques, and Molecular Cloning by Sambrook Chapter 10 documenting end-labeling of cohesive termini.

View Details