1k1a Summary

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Crystal structure of the ankyrin repeat domain of Bcl-3: a unique member of the IkappaB protein family

The structure was published by Michel, F., Soler-Lopez, M., Petosa, C., Cramer, P., Siebenlist, U., and Muller, C.W., in 2001 in a paper entitled "Crystal structure of the ankyrin repeat domain of Bcl-3: a unique member of the IkappaB protein family." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.86 Å and deposited in 2001.

The experimental data on which the structure is based was not deposited.

The PDB entry contains the structure of B-cell lymphoma 3-encoded protein. This molecule has the UniProt identifier P20749 (BCL3_HUMAN)search. The sample contained 241 residues which is < 90% of the natural sequence. Out of 241 residues 228 were observed and are deposited in the PDB.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A B-cell lymphoma 3-encoded protein P20749 (127-367) (BCL3_HUMAN)search Homo sapienssearch < 90% 241 94%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P20749 (127 - 367) B-cell lymphoma 3-encoded protein Homo sapiens

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A Ankyrin repeatsearch Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeatsearch Ankyrin repeatsearch
Chain InterPro annotation
A Ankyrin repeatsearch Ankyrin repeat-containing domainsearch