ISDA

Deposition Date 2006-09-05

Release Date 2006-09-26

Last Version Date 2023-08-30

Entry Detail

PDB ID:

2I9E

Keywords:

ISOMERASE

Title:

Structure of Triosephosphate Isomerase of Tenebrio molitor

Biological Source:

Source Organism:

Tenebrio molitor (Taxon ID: 7067)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Free:

0.23

R-Value Work:

0.21

R-Value Observed:

0.22

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Triosephosphate isomerase
Gene (Uniprot):tpi
Mutations:N241D, V243I, K246R
Chain IDs:A, B, C, D
Chain Length:259
Number of Molecules:4
Biological Source:Tenebrio molitor

UniProt ID:Q8MPF2 Pfam ID:PF00121 EC:5.3.1.1

Ligand Molecules

TRS

Primary Citation

A coleopteran triosephosphate isomerase: X-ray structure and phylogenetic impact of insect sequences.

Knobeloch, D, Schmidt, A, Scheerer, P, Krauss, N, Wessner, H, Scholz, C, Kuttner, G, von Rintelen, T, Wessel, A, Hohne, W.Show

Insect Mol Biol 19 35 48 (2010)

PMID: 19849721 DOI: 10.1111/j.1365-2583.2009.00928.x

Abstact

A coleopteran triosephosphate isomerase (TIM) from Tenebrio molitor (yellow mealworm beetle) was recombinantly expressed in Escherichia coli and characterized with respect to thermal stability, kinetic parameters and oligomeric state. The enzyme was successfully crystallized and the structure determined by X-ray analysis to 2.0 A resolution. This is the first example of an invertebrate TIM. We compare structural features with known structures of TIMs from microorganisms, plants and vertebrates, and discuss the utility of the Tenebrio TIM sequence, together with several newly sequenced insect TIMs, for molecular phylogenetic analysis.

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Primary Citation of related structures