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D-Ribose

$43

  • Brand : BIOFRON

  • Catalogue Number : BF-D3001

  • Specification : 98%

  • CAS number : 50-69-1

  • Formula : C5H10O5

  • Molecular Weight : 150.13

  • Volume : 500mg

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Catalogue Number

BF-D3001

Analysis Method

HPLC,NMR,MS

Specification

98%

Storage

2-8°C

Molecular Weight

150.13

Appearance

powder

Botanical Source

Structure Type

Carbohydrates

Category

SMILES

Synonyms

IUPAC Name

Density

1.5±0.1 g/cm3

Solubility

Flash Point

219.2±23.3 °C

Boiling Point

415.5±38.0 °C at 760 mmHg

Melting Point

88-92ºC

InChl

InChl Key

WGK Germany

RID/ADR

HS Code Reference

2940000000

Personal Projective Equipment

Correct Usage

For Reference Standard and R&D, Not for Human Use Directly.

Meta Tag

provides coniferyl ferulate(CAS#:50-69-1) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate

PMID

32151926

Abstract

Ovalbumin (Oval)-ribose glycation induced by vacuum freeze-drying (VFD) was studied. The protein conformational changes based on fluorescence, ultraviolet and circular dichroism spectra were evident with the increase in VFD time. The glycated sites and the average degree of substitution per peptide molecule (DSP) were determined using LC-HRMS. Lysine was shown to be the sole glycated site. Two glycated sites and the minimum DSP values were found during the first 6 h of VFD and increased to nine and the maximum DSP values after 48 h of VFD. The glycated sites located on the protein surface were mostly more active than those in the folded or helical regions, and the hydrophilic/hydrophobic environment could also influence DSP values. This study gave relationships between VFD time and the conformational structure and glycated sites of VFD-treated Oval-ribose system, providing a theoretical basis for VFD technique-based protein food and drug industries.

KEYWORDS

Glycated sites; Glycation; LC-HRMS; Ovalbumin; Vacuum freeze-drying.

Title

Conformational alteration and the glycated sites in ovalbumin during vacuum freeze-drying induced glycation: A study using conventional spectrometry and liquid chromatography-high resolution mass spectrometry

Author

Hui Wang 1, Qing Sun 1, Jin-Ming Tan 1, Yue-Ming Hu 2, Wei Yan 1, Zhen Li 1, Zong-Cai Tu 3

Publish date

2020 Jul 15

PMID

32125168

Abstract

The anatomic proximity of the maxillary sinus to the apices of molar and premolar teeth is a significant factor when considering implant therapy to replace maxillary posterior teeth. An emerging field within tissue engineering is the application of xenografts capable of stimulating de novo bone regeneration. This article presents a technique using a crestal approach to sinus grafting utilizing a novel bone graft material composed of porcine, ribose cross-linked collagen seeded with a nanocrystalline hydroxyapatite mineral. This highly cohesive biomaterial is able to minimize graft migration, which is particularly important in case of undetected Schneiderian membrane perforations. The material also has been demonstrated in animal studies to be capable of osteoconduction, resulting in increased bone volume in ridge augmentation procedures.

Title

Simultaneous Crestal Sinus Elevation and Implant Placement Using a Ribose Cross- Linked, Collagen Bone Graft Material: Case Series of 28 Consecutive Patients

Author

Barry P Levin 1, Sergio Rubinstein 2

Publish date

2020 Mar;

PMID

32111664

Abstract

Functions of eukaryotic mRNAs are characterized by intramolecular interactions between their ends. We have addressed the question whether 5′ and 3′ ends meet by diffusion-controlled encounter “through solution” or by a mechanism involving the RNA backbone. For this purpose, we used a translation system derived from Drosophila embryos that displays two types of 5′-3′ interactions: Cap-dependent translation initiation is stimulated by the poly(A) tail and inhibited by Smaug recognition elements (SREs) in the 3′ UTR. Chimeric RNAs were made consisting of one RNA molecule carrying a luciferase coding sequence and a second molecule containing SREs and a poly(A) tail; the two were connected via a protein linker. The poly(A) tail stimulated translation of such chimeras even when disruption of the RNA backbone was combined with an inversion of the 5′-3′ polarity between the open reading frame and poly(A) segment. Stimulation by the poly(A) tail also decreased with increasing RNA length. Both observations suggest that contacts between the poly(A) tail and the 5′ end are established through solution, independently of the RNA backbone. In the same chimeric constructs, SRE-dependent inhibition of translation was also insensitive to disruption of the RNA backbone. Thus, tracking of the backbone is not involved in the repression of cap-dependent initiation. However, SRE-dependent repression was insensitive to mRNA length, suggesting that the contact between the SREs in the 3′ UTR and the 5′ end of the RNA might be established in a manner that differs from the contact between the poly(A) tail and the cap.

KEYWORDS

5′-3′ interaction; closed-loop; mRNA decay; poly(A) tail; translational repression.

Title

Establishment of 5'-3' interactions in mRNA independent of a continuous ribose-phosphate backbone

Author

Florian Kluge 1, Michael Gotze 1, Elmar Wahle 1

Publish date

2020 May;


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