Fmoc-3,5-diiodo-D-tyrosine
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Fmoc-3,5-diiodo-D-tyrosine

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Category
Fmoc-Amino Acids
Catalog number
BAT-007341
CAS number
212651-51-9
Molecular Formula
C24H19I2NO5
Molecular Weight
655.22
Fmoc-3,5-diiodo-D-tyrosine
IUPAC Name
(2R)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-(4-hydroxy-3,5-diiodophenyl)propanoic acid
Synonyms
Fmoc-3,5-diiodo-D-Tyr-OH
Related CAS
103213-31-6 (L-isomer)
Appearance
Off-white powder
Purity
≥ 97% (HPLC)
Density
1.9±0.1 g/cm3
Melting Point
202-208 °C
Boiling Point
687.3°C at 760 mmHg
Storage
Store at 2-8 °C
InChI
InChI=1S/C24H19I2NO5/c25-19-9-13(10-20(26)22(19)28)11-21(23(29)30)27-24(31)32-12-18-16-7-3-1-5-14(16)15-6-2-4-8-17(15)18/h1-10,18,21,28H,11-12H2,(H,27,31)(H,29,30)/t21-/m1/s1
InChI Key
IKNWCIROCRMKAY-OAQYLSRUSA-N
Canonical SMILES
C1=CC=C2C(=C1)C(C3=CC=CC=C32)COC(=O)NC(CC4=CC(=C(C(=C4)I)O)I)C(=O)O
1. A Photoresponsive Artificial Viral Capsid Self-Assembled from an Azobenzene-Containing β-Annulus Peptide
Kazunori Matsuura, Seiya Fujita Int J Mol Sci. 2021 Apr 14;22(8):4028. doi: 10.3390/ijms22084028.
Photoinduced structural changes in peptides can dynamically control the formation and dissociation of supramolecular peptide materials. However, the existence of photoresponsive viral capsids in nature remains unknown. In this study, we constructed an artificial viral capsid possessing a photochromic azobenzene moiety on the peptide backbone. An azobenzene-containing β-annulus peptide derived from the tomato bushy stunt virus was prepared through solid-phase synthesis using Fmoc-3-[(3-aminomethyl)-phenylazo]phenylacetic acid. The azobenzene-containing β-annulus (β-Annulus-Azo) peptide showed a reversible trans/cis isomerization property. The β-annulus-azo peptide self-assembled at 25 μM into capsids with the diameters of 30-50 nm before UV irradiation (trans-form rich), whereas micrometer-sized aggregates were formed after UV irradiation (cis-form rich). The artificial viral capsid possessing azobenzene facilitated the encapsulation of fluorescent-labeled dextrans and their photoinduced release from the capsid.
2. Engineering Corynebacterium glutamicum Mutants for 3-Methyl-1-butanol Production
Yu Zhang, Xiaohuan Zhang, Shiyuan Xiao, Wei Qi, Jingliang Xu, Zhenhong Yuan, Zhongming Wang Biochem Genet. 2019 Jun;57(3):443-454. doi: 10.1007/s10528-019-09906-4. Epub 2019 Jan 14.
3-Methyl-1-butanol (3MB) is a promising biofuel that can be produced from 2-ketoisocaproate via the common L-leucine biosynthesis pathway. Corynebacterium glutamicum was chosen as a host bacterium because of its strong resistance to isobutanol. In the current study, several strategies were designed to overproduce 3MB in C. glutamicum through a non-fermentation pathway. The engineered C. glutamicum mutant was obtained by silencing the pyruvate dehydrogenase gene complex (aceE) and deleting the lactic dehydrogenase gene (ldh), followed by mutagenesis with diethyl sulfate (DES) and selection with Fmoc-3-4-thiazolyl-L-alanine (FTA). The mutant could produce 659 mg/L of 3MB after 12 h of incubation. To facilitate carbon flux to 3MB biosynthesis, the engineered recombinant was also constructed without branched-chain acid aminotransferase (ilvE) activity by deleting the ilvE gene. This recombinant could produce 697 mg/L of 3MB after 12 h of incubation.
3. Exploiting Minimalistic Backbone Engineered γ-Phenylalanine for the Formation of Supramolecular Co-Polymer
Rajkumar Misra, et al. Macromol Rapid Commun. 2022 Oct;43(19):e2200223. doi: 10.1002/marc.202200223. Epub 2022 Aug 12.
Ordered supramolecular hydrogels assembled by modified aromatic amino acids often exhibit low mechanical rigidity. Aiming to stabilize the hydrogel and understand the impact of conformational freedom and hydrophobicity on the self-assembly process, two building blocks based on 9-fluorenyl-methoxycarbonyl-phenylalanine (Fmoc-Phe) gelator which contain two extra methylene units in the backbone, generating Fmoc-γPhe and Fmoc-(3-hydroxy)-γPhe are designed. Fmoc-γPhe spontaneously assembled in aqueous media forming a hydrogel with exceptional mechanical and thermal stability. Moreover, Fmoc-(3-hydroxy)-γPhe, with an extra backbone hydroxyl group decreasing its hydrophobicity while maintaining some molecular flexibility, self-assembled into a transient fibrillar hydrogel, that later formed microcrystalline aggregates through a phase transition. Molecular dynamics simulations and single crystal X-ray analyses reveal the mechanism underlying the two residues' distinct self-assembly behaviors. Finally, Fmoc-γPhe and Fmoc-(3-OH)-γPhe co-assembly to form a supramolecular hydrogel with notable mechanical properties are demonstrated. It has been believed that the understanding of the structure-assembly relationship will enable the design of new functional amino acid-based hydrogels.
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