Scientists discover common blueprint for protein antibiotics

A discovery by researchers at the Los Angeles Biomedical Research Institute (LA BioMed) has uncovered a common blueprint for proteins that have antimicrobial properties. This finding opens the door to design and development ...

Novel potent antimicrobial from thermophilic bacterium

University of Groningen microbiologists and their colleagues from Lithuania have discovered a new glycocin, a small antimicrobial peptide with a sugar group attached, which is produced by a thermophilic bacterium and is stable ...

Thermodynamic properties of hevein

Hevein is a small protein (4.7 kDa) consisting of forty-three amino acid residues. It is the main component of the bottom fraction of rubber tree (Hevea brasiliensis) latex that has a pronounced antimicrobial activity, thus ...

New strategy improves efficiency of CRISPR-Cas9 genome editing

The efficiency of CRISPR genome editing tools targeted to the site of interest by Cas9 nucleases varies considerably and a new CMP-fusion strategy, called CRISPR-chrom, enhances the activity up to several-fold. CRISPR-chrom ...

Nanopores make portable mass spectrometer for peptides a reality

University of Groningen scientists have developed nanopores to directly measure the mass of peptides. Although the resolution needs improvement, this proof of principle shows that a cheap and portable peptide mass spectrometer ...

X-rays reveal layout of loaded drug transporter

Experiments at DESY's X-ray source PETRA III have revealed the first structure of a biological transporter protein loaded with a pro-drug. Prodrugs are inactive medications that are metabolized into an active, functional ...

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Peptide

Peptides (from the Greek πεπτίδια, "small digestibles") are short polymers formed from the linking, in a defined order, of α-amino acids. The link between one amino acid residue and the next is known as an amide bond or a peptide bond.

Proteins are polypeptide molecules (or consist of multiple polypeptide subunits). The distinction is that peptides are short and polypeptides/proteins are long. There are several different conventions to determine these, all of which have caveats and nuances.

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