BMRB Entry 36258

Title:
Structure of Glargine insulin in 20% acetic acid-d4 (pH 1.9)
Deposition date:
2019-05-28
Original release date:
2020-07-15
Authors:
Ratha, B.; Kar, R.; Bhunia, A.
Citation:

Citation: Ratha, B.; Kar, R.; Bednarikova, Z.; Gazova, Z.; Kotler, S.; Raha, S.; De, S.; Maiti, N.; Bhunia, A.. "Molecular Details of a Salt Bridge and Its Role in Insulin Fibrillation by NMR and Raman Spectroscopic Analysis."  J. Phys. Chem. B 124, 1125-1136 (2020).
PubMed: 31958230

Assembly members:

Assembly members:
entity_1, polymer, 21 residues, 2326.647 Da.
entity_2, polymer, 32 residues, 3748.340 Da.

Natural source:

Natural source:   Common Name: not available   Taxonomy ID: 32630   Superkingdom: not available   Kingdom: not available   Genus/species: not available not available

Experimental source:

Experimental source:   Production method: chemical synthesis

Entity Sequences (FASTA):

Entity Sequences (FASTA):
entity_1: GIVEQCCTSICSLYQLENYC G
entity_2: FVNQHLCGSHLVEALYLVCG ERGFFYTPKTRR

Data sets:
Data typeCount
1H chemical shifts333

Additional metadata:

  • Assembly
  • Samples and Experiments
  • Software
  • Spectrometers
  • Hide all

Assembly:

Entity Assembly IDEntity NameEntity ID
1entity_11
2entity_22

Entities:

Entity 1, entity_1 21 residues - 2326.647 Da.

1   GLYILEVALGLUGLNCYSCYSTHRSERILE
2   CYSSERLEUTYRGLNLEUGLUASNTYRCYS
3   GLY

Entity 2, entity_2 32 residues - 3748.340 Da.

1   PHEVALASNGLNHISLEUCYSGLYSERHIS
2   LEUVALGLUALALEUTYRLEUVALCYSGLY
3   GLUARGGLYPHEPHETYRTHRPROLYSTHR
4   ARGARG

Samples:

sample_1: PEPTIDE CHAIN A 350 uM; PEPTIDE CHAIN B 350 uM; acetic acid-d4, [U-2H], 20%; H2O 80%

sample_conditions_1: ionic strength: 0 mM; pH: 1.9 pD; pressure: 1 atm; temperature: 298 K

Experiments:

NameSampleSample stateSample conditions
2D 1H-1H NOESYsample_1isotropicsample_conditions_1
2D 1H-1H TOCSYsample_1isotropicsample_conditions_1

Software:

Amber, Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman - refinement, structure calculation

Sparky, Goddard - chemical shift assignment, peak picking

TopSpin, Bruker Biospin - collection

NMR spectrometers:

  • Bruker AVANCE III 600 MHz