| | Identification | Back Directory |  | [Name] 
 ALA-ALA-ALA-ALA-ALA
 |  | [CAS] 
 10183-34-3
 |  | [Synonyms] 
 PENTA-ALA
 Pentaalanine
 PENTA-L-ALANINE
 AAAAA (peptide)
 D-Penta-L-Alanine
 ALA-ALA-ALA-ALA-ALA
 L-ALA-ALA-ALA-ALA-ALA
 H-ALA-ALA-ALA-ALA-ALA-OH
 L-Alanine, L-alanyl-L-alanyl-L-alanyl-L-alanyl-
 |  | [Molecular Formula] 
 C15H27N5O6
 |  | [MDL Number] 
 MFCD00080980
 |  | [MOL File] 
 10183-34-3.mol
 |  | [Molecular Weight] 
 373.4
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 >250oC (dec.)
 |  | [Boiling point ] 
 822.3±65.0 °C(Predicted)
 |  | [density ] 
 1.244±0.06 g/cm3(Predicted)
 |  | [storage temp. ] 
 -15°C
 |  | [solubility ] 
 Aqueous Acid (Slightly), Water (Slightly)
 |  | [form ] 
 Solid
 |  | [pka] 
 3.43±0.10(Predicted)
 |  | [color ] 
 White to Off-White
 |  | [Sequence] 
 Ala-Ala-Ala-Ala-Ala
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 Penta-alanine (Penta-L-alanine) is a petide. Penta-alanine can be used for neurological disease research[1][2].
 |  | [Biochem/physiol Actions] 
 L-Alanine has wide range of applications as food additive and as a component in infusion solutions. It is also used as a precursor for chemical and pharmaceutical products. In a penta-alanine system, resampling helps to increase the efficacy of a “fast-switch” equilibrium sampling protocol.
 |  | [References] 
 [1] Niu L, et al. Transformation of β-sheet structures of the amyloid peptide induced by molecular modulators. Chem Commun (Camb). 2014 Aug 18;50(64):8923-6. DOI:10.1039/c4cc02748e
 [2] Mu Y, et al. Energy landscape of a small peptide revealed by dihedral angle principal component analysis. Proteins. 2005 Jan 1;58(1):45-52. DOI:10.1002/prot.20310
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