NMR-Data [1] for Alanine:
Atom | Atomtyp | Chemical Shift [ppm]1 | Random Coil chem. shift 3 |
Random Coil chem. shift 4 |
|||
---|---|---|---|---|---|---|---|
average | standard deviation | entries2 | |||||
H | H | 8.193 | 0.658 | 60330 | 8.24 | 8.19 | |
Hα | H | 4.25 | 0.448 | 45753 | 4.32 | 4.62 | |
Hβ | H | 1.352 | 0.285 | 43360 | 1.39 | 1.35 | |
C | C | 177.73 | 3.627 | 38367 | 177.8 | 175.9 | |
Cα | C | 53.163 | 2.087 | 52586 | 52.5 | 50.5 | |
Cβ | C | 19.06 | 2.412 | 49713 | 19.1 | 18.1 | |
N | N | 123.318 | 6.449 | 56493 | 123.8 | 125.0 | |
proportion of proteines | pK2 COOH | pK1COOH | isoelectrical point | pK1NH2 | pK2NH2 | ||
9.0% | – | 2.3 | 6.1 | 9.9 | – | ||
CAS- Number | molar mass | formula | density | melting point | solubility | ||
56-41-7 (L- Alanine) 338-69-2 (D- Alanine) 302-72-7 (DL- Alanine) |
89.10 g/mol | C3H7NO2 | 1,42 g·cm−3 | 295–297 °C (decomposition) | good in water (166,5 g·kg−1 for 25 °C; 217,9 g·kg−1 for 50 °C; 285,1 g·kg−1 for 75 °C; 373,0 g·kg−1 for 100 °C)[4] bad in ethanole insoluble in diethylether |
1 Depending on the type of atom it was 1H, 13C or 15N chemical shift. 1H und 13C relative to TMS and 15N relative to liquid ammonia
2 Number of individual chemical shift data for averaging according to [2]
3 with Alanine as neighborhood in the hexapeptide Gly-Gly-X-Ala-Gly-Gly [3]
4 with Proline as neighborhood in the hexapeptide Gly-Gly-X-Pro-Gly-Gly [3]
3D- Modell
sources:
[1] “BioMagResBank”, Eldon L. Ulrich; Hideo Akutsu; Jurgen F. Doreleijers; Yoko Harano; Yannis E. Ioannidis; Jundong Lin; Miron Livny; Steve Mading; Dimitri Maziuk; Zachary Miller; Eiichi Nakatani; Christopher F. Schulte; David E. Tolmie; R. Kent Wenger; Hongyang Yao; John L. Markley; Nucleic Acids Research 36, D402-D408 (2008) doi: 10.1093/nar/gkm957
[2] http://www.bmrb.wisc.edu/ last visit march 2017
[3] David S. Wishart, Colin G. Bigam, Arne Holm, Robert S. Hodges, Brian D. Sykes; Journal of Biomolecular NMR
January 1995, Volume 5, Issue 1, pp 67-81 doi:10.1007/BF00227471
[4] Wikipedia http://de.wikipedia.org/wiki/Aminos%C3%A4uren (last visit Januar 2014)
[5] Wikipedia http://de.wikipedia.org/wiki/Alanin (las visit Januar 2014)
3D Mol: Nicholas Rego and David Koes
3Dmol.js: molecular visualization with WebGL
Bioinformatics (2015) 31 (8): 1322-1324 doi:10.1093/bioinformatics/btu829