In the world of biochemical research and peptide synthesis, few motifs have garnered as much interest as the YIGSR peptide sequence. As someone who actively follows advancements in extracellular matrix (ECM) mimetics, I have found the study of this specific pentapeptide to be incredibly fascinating. Whether you are exploring its role in cell-matrix interactions or its potential in advanced material science, understanding the fundamental structure of this molecule is essential.
Decoding the YIGSR Sequence
At its core, the YIGSR peptide is a short, functio Multimene Forms of Tyr-Ile-Gly-Ser-Arg (YIGSR) Peptide nal motif derived from the basement membrane protein laminin. Specifically, it represents the 929–933 sequence of the β1 chain. The sequence one letter code is simply Y-I-G-S-R, which translates to the amino acid chain: Tyr-Ile-Gly-Ser-Arg.
To break it down further, this pentapeptide consists of Tyrosine, Isoleucine, Glycine, Serine, Peptides: Emerging Candidates for the Prevention and Treatment of and Arginine. When looking at the molecular weight, it typically sits around 594.67 g/mol for the standard form. Researchers often utilize the Laminin Peptide YIGSR-NH2 (amidated version), which has a slightly different molecular weight of approximately 593.67 Da, often preferred for its enhanced stability in specific experimental conditions.
The Role of Laminin Fragment YIGSR, A Laminin-Derived Peptide, Dictates a Concentration 929-933
The YIGSR (Laminin Fragment 929-933) is wide Peptide sequence | Chemistry | Research Starters - EBSCO ly recognized as a major receptor-binding site. In my experience reviewing literature on this topic, it is clear that this sequence found on the B1 chain of laminin acts as a crucial signal for cell adhesion and migration.
Many researchers focus on the YIGSR sequence is the major receptor binding site because of how it interacts with the 67 kDa laminin-binding protein. This interaction is what makes it such a powerful tool in studies involving cell-adhesive activity. Whether it is used in its native form or integrated into complex delivery systems like DSPE-PEG1000-YIGSR, the specificity of this Tyr-Ile-Gly-Ser-Arg motif remains its most significant attribute.
Comparative Insights: YIGSR vs. Other Sequences
When comparing various bioactive peptides, you will often see YIGSR mentioned alongside others like IKVAV (from the α1 chain). While both are vital for understanding how cells organize into tissues, the YIGSR within the B1 chain is uniquely studied for its specific inhibitory effects on cell-matrix interactions.
It is interesting to note how variations in the sequence YIGSR can alter performance. For instance, in some advanced gene transfection studies, researchers have utilized the TAT-H6-K(C18)-YIGSR construct to improve efficiency. This demonstrates that the YIGSR (Tyr–Ile–Gly–Ser–Arg) laminin β1 chain sequence is not just a passive structural component, but a versatile functional unit.
Practical Considerations for Handling
If you are sourcing this for research, Involvement of the YIGSR sequence of laminin in protein you will frequently encounter the pentapeptide in a lyophilized powder form. Most high-quality suppliers provide the sequence, YIGSR with a purity level of ≥98%.
When storing these materials, standard protocols usually recommend:
* Temperature: -20°C for long-term stability.
* Solubility: The peptide is generally solu YIGSR, A Laminin-Derived Peptide, Dictates a ble in water, though specific buffers may be required depending on your experimental design.
* Verification: Always cross-reference the CAS registry number (110590-64-2) to ensure you are working with the correct Tyr-Ile-Gly-Ser-Arg isomer.
Final Reflections
The YIGSR sequence continue Peptide sequence | Chemistry | Research Starters - EBSCO s to be a cornerstone in the study of structural biology. By focusing on the 929–933 sequence of the β1 chain, scientists can better understand the complex signaling pathways involved in tissue development and cell behavior. As more sequences are discovered, the YIGSR motif remains a reliable standard for those of us interested in the intersection of synthetic chemistry and biological function.
Whether you are looking at the pentapeptide YIGSR for its adhesive properties or its role in signaling, the precision of this Tyr-Ile-Gly-Ser-Arg chain highlights the incredible specificity found within the laminin protein structure. A YIGSR (Laminin Fragment 929-933) | Polypeptide lways ensure you are sourcing from reputable providers to maintain the integrity of your peptide research.