L-Glutamamide
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| Category | Others |
| Catalog number | BBF-04743 |
| CAS | 2013-17-4 |
| Molecular Weight | 145.16 |
| Molecular Formula | C5H11N3O2 |
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Specification
| Synonyms | Glutamamide; L-Glutamine amide |
| IUPAC Name | (2S)-2-aminopentanediamide |
| Canonical SMILES | C(CC(=O)N)C(C(=O)N)N |
| InChI | InChI=1S/C5H11N3O2/c6-3(5(8)10)1-2-4(7)9/h3H,1-2,6H2,(H2,7,9)(H2,8,10)/t3-/m0/s1 |
| InChI Key | LCGISIDBXHGCDW-VKHMYHEASA-N |
Properties
| Boiling Point | 473.7±40.0°C (Predicted) |
| Density | 1.243±0.06 g/cm3 (Predicted) |
Reference Reading
1. L: -Stereoselective amino acid amidase with broad substrate specificity from Brevundimonas diminuta: characterization of a new member of the leucine aminopeptidase family
Hidenobu Komeda, Nozomi Hariyama, Yasuhisa Asano Appl Microbiol Biotechnol. 2006 Apr;70(4):412-21. doi: 10.1007/s00253-005-0068-9. Epub 2005 Jul 7.
Brevundimonas diminuta TPU 5720 produces an amidase acting L-stereoselectively on phenylalaninamide. The enzyme (LaaA(Bd)) was purified to electrophoretic homogeneity by ammonium sulfate fractionation and four steps of column chromatography. The final preparation gave a single band on SDS-PAGE with a molecular weight of approximately 53,000. The native molecular weight of the enzyme was about 288,000 based on gel filtration chromatography, suggesting that the enzyme is active as a homohexamer. It had maximal activity at 50 degrees C and pH 7.5. LaaA(Bd) lost its activity almost completely on dialysis against potassium phosphate buffer (pH 7.0), and the amidase activity was largely restored by the addition of Co(2+) ions. The enzyme was, however, inactivated in the presence of ethylenediaminetetraacetic acid even in the presence of Co(2+), suggesting that LaaA(Bd) is a Co(2+)-dependent enzyme. LaaA(Bd) had hydrolyzing activity toward a broad range of L-amino acid amides including L-phenylalaninamide, L-glutaminamide, L-leucinamide, L-methioninamide, L-argininamide, and L-2-aminobutyric acid amide. Using information on the N-terminal amino acid sequence of the enzyme, the gene encoding LaaA(Bd) was cloned from the chromosomal DNA of the strain and sequenced. Analysis of 4,446 bp of the cloned DNA revealed the presence of seven open-reading frames (ORFs), one of which (laaA ( Bd )) encodes the amidase. LaaA(Bd) is composed of 491 amino acid residues (calculated molecular weight 51,127), and the deduced amino acid sequence exhibits significant similarity to that of ORFs encoding hypothetical cytosol aminopeptidases found in the genomes of Caulobacter crescentus, Bradyrhizobium japonicum, Rhodopseudomonas palustris, Mesorhizobium loti, and Agrobacterium tumefaciens, and leucine aminopeptidases, PepA, from Rickettsia prowazekii, Pseudomonas putida ATCC 12633, and Escherichia coli K-12. The laaA ( Bd ) gene modified in the nucleotide sequence upstream from its start codon was overexpressed in an E. coli transformant. The activity of the recombinant LaaA(Bd) in cell-free extracts of the E. coli transformant was 25.9 units mg(-1) with L-phenylalaninamide as substrate, which was 50 times higher than that of B. diminuta TPU 5720.
2. GMDP: unusual physico-chemical and biological properties of the anomeriс forms
Elena A Meshcheryakova, Konstantin S Mineev, Pavel E Volynski, Tatiana M Andronova, Vadim T Ivanov J Pept Sci. 2015 Sep;21(9):717-22. doi: 10.1002/psc.2796. Epub 2015 Jul 7.
Disaccharide containing unit of peptidoglycan from bacterial cell wall, N-acetyl-d-glucosaminyl-N-acetylmuramyl-l-alanyl-d-glutaminamide (gluсosaminyl-muramyl-dipeptide) registered in Russia as an immunomodulatory drug, is shown to participate in slow equilibrium of α and β anomeric forms. Data of NMR spectra and molecular dynamics indicate that the α-anomer predominantly acquires a folded conformation stabilized by intramolecular hydrogen bond between the alanyl carbonyl and muramyl NH proton. The β-form displays a considerable fraction of extended, non-hydrogen bonded structures. In the standard immunoadjuvant test system, the α-form is practically inactive, and the activity of the equilibrium mixture with α : β = 68 : 32 ratio is due to the presence of β-anomer. Such unique α-β selectivity of biological action must be considered at the design of related immunoactive glycopeptides.
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Bio Calculators
* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2
* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
