ISDA

Deposition Date 1996-03-22

Release Date 1997-05-15

Last Version Date 2024-10-09

Entry Detail

PDB ID:

1IRS

Keywords:

COMPLEX (SIGNAL TRANSDUCTION/PEPTIDE)

Title:

IRS-1 PTB DOMAIN COMPLEXED WITH A IL-4 RECEPTOR PHOSPHOPEPTIDE, NMR, MINIMIZED AVERAGE STRUCTURE

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Submitted:

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:IRS-1
Gene (Uniprot):IRS1
Chain IDs:A
Chain Length:112
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P35568 Pfam ID:PF02174

Protein Blast

Polymer Type:polypeptide(L)
Molecule:IL-4 RECEPTOR PHOSPHOPEPTIDE
Gene (Uniprot):IL4R
Chain IDs:B
Chain Length:11
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P24394

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
PTR	B	TYR	O-PHOSPHOTYROSINE

Ligand Molecules

Primary Citation

Structural basis for IL-4 receptor phosphopeptide recognition by the IRS-1 PTB domain.

Zhou, M.M, Huang, B, Olejniczak, E.T, Meadows, R.P, Shuker, S.B, Miyazaki, M, Trub, T, Shoelson, S.E, Fesik, S.W, Wolf, G, Trub, T, Ottinger, E, Groninga, L, Lynch, A, White, M.F, Miyazaki, M, Lee, J, Shoelson, S.E, Zhou, M.M, Ravichandran, K.S, Olejniczak, E.F, Petros, A.M, Meadows, R.P, Sattler, M, Harlan, J.E, Wade, W.S, Burakoff, S.J, Fesik, S.W, O'Neill, T.J, Craparo, A, Gustafson, T.A.Show

Nat.Struct.Biol. 3 388 393 (1996)

PMID: 8599766 DOI: 10.1038/nsb0496-388

Abstact

We present the NMR structure of the PTB domain of insulin receptor substrate-1 (IRS-1) complexed to a tyrosine-phosphorylated peptide derived from the IL-4 receptor. Despite the lack of sequence homology and different binding specificity, the overall fold of the protein is similar to that of the Shc PTB domain and closely resembles that of PH domains. However, the PTB domain of IRS-1 is smaller than that of Shc (110 versus 170 residues) and binds to phosphopeptides in a distinct manner. We explain the phosphopeptide binding specificity based on the structure of the complex and results of site-directed mutagenesis experiments.

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Protein

Chemical

Disease

Primary Citation of related structures