B-box zinc finger
| zf-B_box | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Structure of the xnf7 B-box, developmental protein | |||||||||
| Identifiers | |||||||||
| Symbol | zf-B_box | ||||||||
| Pfam | PF00643 | ||||||||
| InterPro | IPR000315 | ||||||||
| PROSITE | PDOC50015 | ||||||||
| SCOP2 | 1fre / SCOPe / SUPFAM | ||||||||
| CDD | cd00021 | ||||||||
| |||||||||
In molecular biology the B-box-type zinc finger domain is a short protein domain of around 40 amino acid residues in length. B-box zinc fingers can be divided into two groups, where types 1 and 2 B-box domains differ in their consensus sequence and in the spacing of the 7-8 zinc-binding residues. Several proteins contain both types 1 and 2 B-boxes, suggesting some level of cooperativity between these two domains.