Macromolecule Annotations for the Entities in PDB 1MJE

Protein Family Annotation Pfam Database Homepage

Chains Pfam Accession Pfam Identifier Pfam Description Type Source
A PF09104 BRCA-2_OB3 BRCA2, oligonucleotide/oligosaccharide-binding, domain 3 Domain Members of this family assume an OB fold, which consists of a highly curved five-stranded beta-sheet that closes on itself to form a beta-barrel. OB3 has a pronounced groove formed by one face of the curved sheet and is demarcated by two loops, one between beta 1 and beta 2 and another between beta 4 and beta 5, which allows for strong ssDNA binding [1]. PFAM PF09104
A PF09169 BRCA-2_helical BRCA2, helical Domain Members of this family adopt a helical structure, consisting of a four-helix cluster core (alpha 1, alpha 8, alpha 9, alpha 10) and two successive beta-hairpins (beta 1 to beta 4). An approx. 50-amino acid segment that contains four short helices (alpha 2 to alpha 4), meanders around the surface of the core structure. In BRCA2, the alpha 9 and alpha 10 helices pack with BRCA-2_OB1 (Pfam:PF09103) through van der Waals contacts involving hydrophobic and aromatic residues, and also through side-chain and backbone hydrogen bonds. The domain binds the 70-amino acid DSS1 (deleted in split-hand/split foot syndrome) protein, which was originally identified as one of three genes that map to a 1.5-Mb locus deleted in an inherited developmental malformation syndrome [1]. PFAM PF09169
B PF05160 DSS1_SEM1 DSS1/SEM1 family Family
A PF09121 Tower Tower Domain Members of this family adopt a secondary structure consisting of a pair of long, antiparallel alpha-helices (the stem) that support a three-helix bundle (3HB) at their end. The 3HB contains a helix-turn-helix motif and is similar to the DNA binding domains of the bacterial site-specific recombinases, and of eukaryotic Myb and homeodomain transcription factors. The Tower domain has an important role in the tumour suppressor function of BRCA2, and is essential for appropriate binding of BRCA2 to DNA [1]. PFAM PF09121
A PF09103 BRCA-2_OB1 BRCA2, oligonucleotide/oligosaccharide-binding, domain 1 Domain Members of this family assume an OB fold, which consists of a highly curved five-stranded beta-sheet that closes on itself to form a beta-barrel. OB1 has a shallow groove formed by one face of the curved sheet and is demarcated by two loops, one between beta 1 and beta 2 and another between beta 4 and beta 5, which allows for weak single strand DNA binding. The domain also binds the 70-amino acid DSS1 (deleted in split-hand/split foot syndrome) protein, which was originally identified as one of three genes that map to a 1.5-Mb locus deleted in an inherited developmental malformation syndrome [1]. PFAM PF09103

Gene Product Annotation Gene Ontology Consortium Homepage

Chains Polymer Molecular Function Biological Process Cellular Component
C 5'-D(P*TP*TP*TP*TP*TP*T)-3' (1MJE:C)
  • none
  • none
  • none
B Deleted in split hand/split foot protein 1 (1MJE:B)
A breast cancer 2 (1MJE:A)
  • none
  • none

Protein Modification Annotation

Type PDB Residue Nr. Description