bZIP domain

From Wikipedia, the free encyclopedia

This article is about the protein domain. For the comression algorithm, see Bzip2.
CREB (top) is a transcription factor capable of binding DNA via the bZIP domain (bottom) and regulating gene expression.
bZIP transcription factor
Identifiers
Symbol bZIP_1
Pfam PF00170
InterPro IPR011616
PROSITE PDOC00036
SCOP 1ysa
Available PDB structures:

1dh3A:285-339 1t2kD:336-395 1s9kE:257-308 1junB:276-313 1jnmA:254-313 1a02J:257-308 1swiB:249-278 1ce9A:251-279 1uo0A:249-279 1rb5B:249-279 1unwB:249-279 1vzlB:249-279 1untA:249-279 1zimC:249-279 1w5jD:249-279 1zijA:249-279 1rb6A:249-279 2ztaA:249-279 1uo5B:249-279 1rb1C:249-279 1gclC:249-279 1w5gB:249-279 1w5iA:249-279 1uo1A:249-279 1unuB:249-279 1gcmA:249-279 1rb4C:249-279 1uo2B:249-279 1ysaD:226-279 1unzB:249-279 1w5kD:249-279 1ij1A:249-279 1zta :247-279 1ij0A:249-279 1uo3A:249-279 1w5hA:249-279 1ij2A:249-279 1dgcA:227-279 1w5lB:249-279 1unyA:249-279 2b1fB:251-279 2bniB:249-279 1zilA:249-278 1ziiA:249-279 1unvB:249-279 1zikB:249-278 1unxA:249-279 1ij3B:249-279 1uo4A:249-279 1kqlB:255-279 2dgcA:229-277 1piqA:249-279 2b22A:251-279 1lvxA:265-294 1gd2H:74-137 1ci6A:280-339

The Basic Leucine Zipper Domain (bZIP domain) is found in many DNA binding eukaryotic proteins. One part of the domain contains a region that mediates sequence specific DNA binding properties and the leucine zipper that is required for the dimerization of two DNA binding regions. The DNA binding region comprises a number of basic aminoacids such as arginine and lysine.

[edit] bZIP domain containing proteins

  • AP-1 fos/jun heterodimer that forms a transcription factor
  • Jun-B transcription factor
  • CREB cAMP response element transcription factor
  • OPAQUE2 (O2) transcription factor of the 22-kD zein gene that encodes a class of storage proteins in the endosperm of maize (Zea Mays) kernels

[edit] Human proteins containing this domain

ATF1; ATF2; ATF4; ATF5; ATF6; ATF7; BACH1; BACH2; BATF; BATF2; CREB1; CREB3; CREB3L1; CREB3L2; CREB3L3; CREB3L4; CREB5; CREBL1; CREM; E4BP4; FOSL1; FOSL2; JUN; JUNB; JUND; NFE2; NFE2L2; NFE2L3; SNFT; CREM

[edit] External links

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