BMRB Entry 36270

Title:
Solution structure of bovine insulin amyloid intermediate-1
Deposition date:
2019-07-14
Original release date:
2025-09-15
Authors:
Ratha, B.; Kar, R.; Brender, J.; Bhunia, A.
Citation:

Citation: Ratha, Bhisma; Kar, Rajiv; Brender, Jeffrey; Pariary, Ranit; Sahoo, Bankanidhi; Kalita, Sujan; Bhunia, Anirban. "High-resolution structure of a partially folded insulin aggregation intermediate."  Proteins 88, 1648-1659 (2020).
PubMed: 32683793

Assembly members:

Assembly members:
Insulin A chain, polymer, 21 residues, 2339.645 Da.
Insulin B chain, polymer, 30 residues, 3403.927 Da.

Natural source:

Natural source:   Common Name: bovine   Taxonomy ID: 9913   Superkingdom: not available   Kingdom: Metazoa   Genus/species: Bos taurus

Experimental source:

Experimental source:   Production method:

Entity Sequences (FASTA):

Entity Sequences (FASTA):
Insulin A chain: GIVEQCCASVCSLYQLENYC N
Insulin B chain: FVNQHLCGSHLVEALYLVCG ERGFFYTPKA

Data sets:
Data typeCount
1H chemical shifts308

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 - 2339.645 Da.

1   GLYILEVALGLUGLNCYSCYSALASERVAL
2   CYSSERLEUTYRGLNLEUGLUASNTYRCYS
3   ASN

Entity 2, entity_2 30 residues - 3403.927 Da.

1   PHEVALASNGLNHISLEUCYSGLYSERHIS
2   LEUVALGLUALALEUTYRLEUVALCYSGLY
3   GLUARGGLYPHEPHETYRTHRPROLYSALA

Samples:

BPI_18hr_D4Ac: Bovine insulin 350 uM; acetic acid-d4, [U-2H], 20%

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

Experiments:

NameSampleSample stateSample conditions
2D 1H-1H NOESYBPI_18hr_D4Acisotropicsample_conditions_1
2D 1H-1H TOCSYBPI_18hr_D4Acisotropicsample_conditions_1

Software:

TopSpin v3.2, Bruker Biospin - processing

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

Sparky, Goddard - chemical shift assignment

Sparky, Goddard - peak picking

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

NMR spectrometers:

  • Bruker AVANCE III 700 MHz