ISDA

Entry Detail

PDB ID:

1MBF

Keywords:

DNA BINDING PROTEIN

Title:

MOUSE C-MYB DNA-BINDING DOMAIN REPEAT 1

Biological Source:

Source Organism:

Mus musculus

PDB Version:

Deposition Date:

1995-05-19

Release Date:

1995-07-31

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Submitted:

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:MYB PROTO-ONCOGENE PROTEIN
Chain IDs:A
Chain Length:53
Number of Molecules:1
Biological Source:Mus musculus

UniProt ID:P06876 Pfam ID:PF00249

Ligand Molecules

Primary Citation

Comparison of the free and DNA-complexed forms of the DNA-binding domain from c-Myb.

Ogata, K, Morikawa, S, Nakamura, H, Hojo, H, Yoshimura, S, Zhang, R, Aimoto, S, Ametani, Y, Hirata, Z, Sarai, A, Ishii, S, Nishimura, Y, Ogata, K, Morikawa, S, Nakamura, H, Sekikawa, A, Inoue, T, Kanai, H, Sarai, A, Ishii, S, Nishimura, Y, Ogata, K, Hojo, H, Aimoto, S, Nakai, T, Nakamura, H, Sarai, A, Ishii, S, Nishimura, Y.Show

Nat.Struct.Biol. 2 309 320 (1995)

PMID: 7796266 DOI: 10.1038/nsb0495-309

Abstact

The DNA-binding domain of c-Myb consists of three imperfect tandem repeats (R1, R2 and R3). The three repeats have similar overall architectures, each containing a helix-turn-helix variation motif. The three conserved tryptophans in each repeat participate in forming a hydrophobic core. Comparison of the three repeat structures indicated that cavities are found in the hydrophobic core of R2, which is thermally unstable. On complexation with DNA, the orientations of R2 and R3 are fixed by tight binding and their conformations are slightly changed. No significant changes occur in the chemical shifts of R1 consistent with its loose interaction with DNA.

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Chemical

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Primary Citation of related structures