Molecular biology is a discipline within the life sciences that investigates biological processes at the level of molecules, primarily nucleic acids and proteins. It focuses on the mechanisms of DNA replication, repair, recombination, transcription, and RNA processing, as well as translation and post-translational modification of proteins. Molecular biology integrates concepts and methods from biochemistry, genetics, and cell biology, employing techniques such as cloning, PCR, sequencing, gene editing, and transcriptomic and proteomic profiling. It underpins contemporary research in areas including gene regulation, signal transduction, developmental biology, pathogen–host interactions, and the molecular basis of disease.
The complete genome of the tuberculosis bacterium was sequenced and published in 1998. Since then, scientists have deciphered about two-thirds of TB's genes. Or have they?
Cell & Microbiology
Aug 17, 2026
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12
Every living cell, from the simplest bacterium to a human neuron, relies on the same basic machinery to read, interpret, and use its DNA. This molecular machinery is so fundamental that life as we know it cannot exist without ...
Cell & Microbiology
Aug 11, 2026
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17
The human genome contains more than 20,000 genes. However, at any given time and in a given cell, only a fraction are active. Researchers from EMBL Heidelberg's Krebs Group have developed an innovative experimental approach ...
Biotechnology
Jul 31, 2026
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169
Our DNA is under constant threat. Chemicals, radiation and the everyday errors of cell division all damage it, and if left unrepaired, this can lead to diseases such as cancer. Cells invest heavily in finding and fixing these ...
Molecular & Computational biology
Jul 30, 2026
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16
Cells carry their own growth switches. When enough nutrients—amino acids in particular—are available, cells flip this switch on and begin to grow. Researchers at KAIST and Yonsei University have uncovered the molecular mechanism ...
Cell & Microbiology
Jul 27, 2026
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13
Spliceosomal introns are noncoding DNA sequences located between exons in many eukaryotic protein-coding genes. Most are removed post-transcriptionally by RNA splicing and do not encode proteins, but they have been implicated ...
Cell & Microbiology
Jul 23, 2026
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10
Texas Tech University's School of Veterinary Medicine fourth-year students Kayden Tanner and Marshall Mays have both been published in international journals after putting hundreds of hours into their research papers.
Biotechnology
Jul 20, 2026
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8
A new Northwestern Medicine study published in the Proceedings of the National Academy of Sciences has explored the impacts of aging on essential cellular processes, findings that could shape the development of future anti-aging ...
Cell & Microbiology
Jul 9, 2026
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40
In the study of bacteria, a longstanding dogma has held that two molecular machines—RNA polymerase, which leads the way in transcribing DNA into RNA, and ribosomes, which bring up the rear translating RNA into proteins—worked ...
Cell & Microbiology
Jul 2, 2026
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10
A new study published in the Proceedings of the National Academy of Sciences has offered insight into how Staphylococcus aureus, a major human pathogen, fine-tunes its internal machinery to survive stress and potentially ...
Cell & Microbiology
Jun 29, 2026
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