ISDA: 3THK

Deposition Date 2011-08-19

Release Date 2011-11-23

Last Version Date 2023-09-13

Entry Detail

PDB ID:

3THK

Keywords:

STRUCTURAL PROTEIN

Title:

Structure of SH3 chimera with a type II ligand linked to the chain C-terminal

Biological Source:

Source Organism(s):

Rattus norvegicus (Taxon ID: 10116)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.70 Å

R-Value Free:

0.20

R-Value Work:

0.17

R-Value Observed:

0.18

Space Group:

P 32

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Spectrin alpha chain, brain
Gene (Uniprot):Sptan1
Chain IDs:A, B
Chain Length:73
Number of Molecules:2
Biological Source:Rattus norvegicus

UniProt ID:P16086 Pfam ID:PF00018

Polymer Type:polypeptide(L)
Molecule:Proline-rich peptide
Chain IDs:C, D
Chain Length:10
Number of Molecules:2
Biological Source:

Ligand Molecules

BME

SO4

Primary Citation

High-Resolution Crystal Structure of Spectrin SH3 Domain Fused with a Proline-Rich Peptide.

Gushchina, L.V, Gabdulkhakov, A.G, Nikonov, S.V, Filimonov, V.V.Show

J.Biomol.Struct.Dyn. 29 485 495 (2011)

PMID: 22066535

Abstact

A new chimeric protein, named WT-CIIA, was designed by connecting the proline-rich decapeptide PPPVPPYSAG to the C-terminus of the alpha-spectrin SH3 domain through a natural twelve-residue linker to obtain a single-chain model that would imitate intramolecular SH3-ligand interaction. The crystal structure of this fusion protein was determined at 1.7 Å resolution. The asymmetric unit of the crystal contained two SH3 globules contacting with one PPPVPPY fragment located between them. The domains are related by the two-fold non-crystallographic axis and the ligand lies in two opposite orientations with respect to the conservative binding sites of SH3 domains.

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Primary Citation of related structures

Abstact

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