Protein beta turn — FTIR absorption peaks and assignments
Estos son los números de onda FTIR característicos donde Protein beta turn tiende a absorber, recopilados de literatura publicada y clasificados por evidencia de apoyo. Cada asignación es trazable a una fuente (DOI) y validada de forma cruzada con nuestros más de 130,000 espectros de referencia y grafo de conocimiento.
Backed by 8 cited sources
Respuesta rápida
Protein beta turn is usually assigned by looking for a recurring cluster of characteristic peaks rather than one exact textbook number. The table below shows where the literature most often places this group in FTIR, ranked by accumulated evidence.
Characteristic FTIR peaks for Protein beta turn
| Número de onda (cm⁻¹) | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| 1660 | 5 | 5 | 1,0 |
| 1630 | 3 | 3 | 1,0 |
| 1680 | 3 | 3 | 1,0 |
| 1688 | 3 | 3 | 1,0 |
| 1690 | 3 | 3 | 1,0 |
| 1650 | 2 | 2 | 1,0 |
| 1670 | 2 | 2 | 1,0 |
| 1678 | 2 | 2 | 1,0 |
| 1640 | 2 | 2 | 1,0 |
| 1666 | 2 | 2 | 0,9 |
| 1656 | 2 | 1 | 1,0 |
| 1317 | 1 | 1 | 1,0 |
| 1702 | 1 | 1 | 1,0 |
| 1629 | 1 | 1 | 1,0 |
| 1267 | 1 | 1 | 1,0 |
| 1620 | 1 | 1 | 1,0 |
| 1689 | 1 | 1 | 1,0 |
| 1652 | 1 | 1 | 1,0 |
| 650 | 1 | 1 | 1,0 |
| 1080 | 1 | 1 | 1,0 |
| 1686 | 1 | 1 | 1,0 |
| 1683 | 1 | 1 | 1,0 |
| 1653 | 1 | 1 | 1,0 |
| 1694 | 1 | 1 | 1,0 |
| 1671 | 1 | 1 | 1,0 |
| 1665 | 1 | 1 | 1,0 |
| 2006 | 1 | 1 | 1,0 |
| 1542 | 1 | 1 | 1,0 |
| 1642 | 1 | 1 | 1,0 |
| 1600 | 1 | 1 | 1,0 |
Mostrando los 30 picos mejor respaldados de 38 totales para Protein beta turn.
Lógica de espectro
Una asignación de grupo funcional se vuelve más confiable cuando varias bandas esperadas aparecen juntas. Use esta página para encontrar los picos con mayor respaldo, luego confirme que la misma muestra muestra un patrón coherente en lugar de un solo acierto aislado.
Uso en el mundo real
Estas páginas son útiles para el análisis de materiales desconocidos, la explicación de picos en informes, la resolución de problemas de polímeros y la verificación de si una familia de materiales candidata es químicamente plausible.
Errores comunes
- Usar una página de grupo funcional como veredicto completo del material sin verificar el resto del espectro.
- Asumiendo que la banda más fuerte es siempre la más diagnóstica.
- Olvidar que el procesamiento, los aditivos, el envejecimiento y las mezclas pueden desplazar o ensanchar los picos esperados.
Consejo de verificación
Utilice DSC, GC-MS o TGA cuando varias familias de materiales compartan bandas similares o cuando los efectos de mezcla hagan incierta la asignación de FTIR.
Literatura detrás de estas asignaciones
-
660 cm⁻¹ confianza 1,0
“wavenumber components of Amide I at about 1,690the 12 low-complexity, highly repetitive blocks, which are mainly 1,660cm-1, β-turns β-sheet assigned to vibrations of unordered and involved in the formation of the crystalline domains, domain”
Biagiotti 等 - 2022 - Electrospun Silk Fibroin Scaffolds for Tissue Rege DOI: 10.3389/fbioe.2022.833157 -
1690 cm⁻¹ confianza 1,0
“Peaks between 1690 and 1665 are generally assigned to β-turn structures.”
Fevzioglu 等 - 2020 - Quantitative approach to study secondary structure DOI: 10.1016/j.ijbiomac.2020.07.299 -
1660 cm⁻¹ confianza 1,0
“The peaks at 1692 1687 (-) cm-1 77 and 100 K are enlarged by 1/0.36 and 1/0.64, respectively, and 1673 can be attributed to the amide I vibrations (+) (-) to normalize the population of D447 photoconverted to S390 of turn structure, and the”
Iwata 等 - 2003 - Light-induced structural changes in the LOV2 domai DOI: 10.1021/bi0345135 -
1676 cm⁻¹ confianza 1,0
“The positive influence of PC2 loadings had three peaks at 1676, 1630 cm-1 assigned to amide I (β-turns and β-sheets), and 1063 cm-1 (mostly might be related to cellulose and hemicellulose) which differentiated the control SR (outstanding) f”
Specific Mycoparasite-Fusarium Graminearum Molecular Signatures in Germinating Seeds Disabled Fusarium Head Blight Pathogen’s Infection DOI: 10.3390/ijms22052461 -
1693 cm⁻¹ confianza 1,0
“bands at 1632, 1641, 1673, and 1680 cm-1 are assigned to β-sheet secondary structures, while those bands at 1632, 1641, 1673, and 1680 cm-1 are assigned to β-sheet secondary structures, while those bands at 1632, 1641, 1673, and 1680 cm-1 a”
Sadat 和 Joye - 2020 - Peak Fitting Applied to Fourier Transform Infrared DOI: 10.3390/app10175918 -
1678 cm⁻¹ confianza 1,0
“The 1678 absorption in the FTIR spectrum of bone is associated with the β-turn conformation of collagen.”
Assessment of collagen quality associated with non-enzymatic cross-links in human bone using Fourier-transform infrared imaging DOI: 10.1016/j.bone.2017.01.015. -
1664 cm⁻¹ confianza 1,0
“cm-1), α-helix There was a significant difference in the band (~1664 which was significantly cm-1) β-turn higher in bulbar patients, while the and loops band (~1680 was significantly more pronounced in samples from spinal ALS patients.”
Synchrotron-Based Fourier-Transform Infrared Micro- Spectroscopy of Cerebrospinal Fluid from Amyotrophic Lateral Sclerosis Patients Reveals a Unique Biomolecular Profile DOI: 10.3390/cells12111451 -
1650 cm⁻¹ confianza 1,0
“The inverted peak at 1618 cm-1 attests the higher content of β-strands cm-1, β-turn a decrease in intensity is observed at 1680 probably due to content which is for hard silk, while the shoulder at 1650 cm-1 is a sign of the high content of”
Historical Silk: A Novel Method to Evaluate Degumming with Non-Invasive Infrared Spectroscopy and Spectral Deconvolution DOI: 10.3390/ma16051819
Vea Protein beta turn en su propio espectro
Cargue su espectro FTIR y obtenga un informe de interpretación completo — asignaciones de picos con citas bibliográficas, coincidencias de librerías y una cadena de evidencia con calificación de confianza — en segundos.