|  | Class h: Coiled coil proteins [57942] (6 folds) | 
|  | Fold h.1: Parallel coiled-coil [57943] (26 superfamilies) this is not a true fold; includes oligomers of shorter identical helices | 
|  | Superfamily h.1.3: Leucine zipper domain [57959] (1 family)  | 
|  | Family h.1.3.1: Leucine zipper domain [57960] (14 proteins) | 
|  | Atf4 [57983] (1 species) | 
|  | Species Human (Homo sapiens) [TaxId:9606] [57984] (1 PDB entry) | 
|  | C-fos [57973] (1 species) | 
|  | Species Human (Homo sapiens) [TaxId:9606] [57974] (2 PDB entries) | 
|  | C-jun [57975] (1 species) | 
|  | Species Human (Homo sapiens) [TaxId:9606] [57976] (4 PDB entries) | 
|  | C-myc [57977] (1 species) | 
|  | Species Human (Homo sapiens) [TaxId:9606] [57978] (2 PDB entries) | 
|  | C/ebp alpha [90238] (1 species) | 
|  | Species Rat (Rattus norvegicus) [TaxId:10116] [90239] (1 PDB entry) | 
|  | C/ebp beta [57985] (2 species) | 
|  | Species Human (Homo sapiens) [TaxId:9606] [64590] (7 PDB entries) | 
|  | Species Mouse (Mus musculus) [TaxId:10090] [57986] (1 PDB entry) | 
|  | CD2-Gal4 [57963] (1 species) | 
|  | Species Baker's yeast (Saccharomyces cerevisiae) [TaxId:4932] [57964] (2 PDB entries) | 
|  | GCN4 [57961] (1 species) | 
|  | Species Baker's yeast (Saccharomyces cerevisiae) [TaxId:4932] [57962] (23 PDB entries) | 
|  | HAP1 [57969] (1 species) | 
|  | Species Baker's yeast (Saccharomyces cerevisiae) [TaxId:4932] [57970] (3 PDB entries) | 
|  | Max [57979] (1 species) | 
|  | Species Human (Homo sapiens) [TaxId:9606] [57980] (2 PDB entries) | 
|  | PAP1 [57971] (1 species) | 
|  | Species Fission yeast (Schizosaccharomyces pombe) [TaxId:4896] [57972] (1 PDB entry) | 
|  | PPR1 [57965] (1 species) | 
|  | Species Baker's yeast (Saccharomyces cerevisiae) [TaxId:4932] [57966] (1 PDB entry) | 
|  | PUT3 [57967] (1 species) | 
|  | Species Baker's yeast (Saccharomyces cerevisiae) [TaxId:4932] [57968] (2 PDB entries) | 
|  | Transcription factor Creb [57981] (1 species) | 
|  | Species Mouse (Mus musculus) [TaxId:10090] [57982] (1 PDB entry) | 
Timeline for Family h.1.3.1: Leucine zipper domain: