NMR paper Structure and pharmaceutical formulation development of a new long-acting recombinant human insulin analog studied by NMR and MS.

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[NMR paper] Structure and pharmaceutical formulation development of a new long-acting recombinant human insulin analog studied by NMR and MS.

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NMR processing:

MDD

NMR assignment:

Backbone:

Side-chains:

NOEs:

Structure from NMR restraints:

Ab initio:

Fragment-based:

Rosetta-NMR (Robetta)

Template-based:

GeNMR

I-TASSER

Refinement:

Amber

Structure from chemical shifts:

Fragment-based:

Homology-based:

Torsion angles from chemical shifts:

Preditor

TALOS

Promega- Proline

Secondary structure from chemical shifts:

CSI (via RCI server)

TALOS

MICS caps, β-turns

d2D

PECAN

Flexibility from chemical shifts:

RCI

Interactions from chemical shifts:

HADDOCK

Chemical shifts re-referencing:

NMR model quality:

NOEs, other restraints:

Chemical shifts:

RDCs:

Pseudocontact shifts:

Protein geomtery:

SAVES2 or SAVES4

Quality Control Check

NMR spectrum prediction:

FANDAS

MestReS

V-NMR

Flexibility from structure:

Backbone S2

Methyl S2

B-factor

Molecular dynamics:

Gromacs

Amber

Antechamber

Chemical shifts prediction:

From structure:

Shiftx2

Sparta+

Camshift

CH3shift- Methyl

ArShift- Aromatic

ShiftS

Proshift

PPM

CheShift-2- Cα

From sequence:

Shifty

Camcoil

Poulsen_rc_CS

Disordered proteins:

MAXOCC

Format conversion & validation:

CCPN

From NMR-STAR 3.1

Validate NMR-STAR 3.1

NMR sample preparation:

Protein disorder:

DisMeta

Protein solubility:

Isotope labeling:

Solid-state NMR:

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Structure and pharmaceutical formulation development of a new long-acting recombinant human insulin analog studied by NMR and MS.

Related Articles Structure and pharmaceutical formulation development of a new long-acting recombinant human insulin analog studied by NMR and MS.

J Pharm Biomed Anal. 2017 Feb 20;135:126-132

Authors: Bednarek E, Sitkowski J, Bocian W, Borowicz P, P?ucienniczak G, Stadnik D, Surmacz-Chwedoruk W, Jaworska B, Kozerski L

Abstract
A monomer structure of a novel human insulin analog A22(S)-B3(K)-B31(R) (SK3R) has been characterized by NMR in water/acetonitrile solution and compared with the structure of human insulin (HIS) established in the same medium. The composition of the oligomer ensemble for neat insulins in water was qualitatively assessed by monitoring, derived from NMR experiment, translational diffusion coefficient Dix10(-10)m(2)s(-1), whose value is a population averaged of individual coefficients for species in oligomeric ensemble. Nanospray ESI/MS experiment was used to establish the masses of oligomers in pharmaceutical formulation of the SK3R insulin. The pharmacodynamic data were established and compared to insulin glargine characterized by the same profile of action in diabetics. The oligomerization process of insulin during development of pharmaceutical formulation with routinely used excipients has been studied using translation diffusion coefficient Dix10(-10)m(2)s(-1) established in water solution. These properties were compared with those of human insulin (HIS) which is a standard reference for novel recombinant insulins.

PMID: 28024260 [PubMed - indexed for MEDLINE]

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