Lineage for Superfamily b.34.13: Chromo domain-like
- Root: SCOP 1.75
Class b: All beta proteins [48724] (174 folds) 
Fold b.34: SH3-like barrel [50036] (21 superfamilies)
barrel, partly opened; n*=4, S*=8; meander
the last strand is interrupted by a turn of 3-10 helix
Superfamily b.34.13: Chromo domain-like [54160] (3 families) 
SH3-like barrel is capped by a C-terminal helix
Families:
b.34.13.1: "Histone-like" proteins from archaea [54161] (1 protein) b.34.13.2: Chromo domain [54165] (7 proteins)
lacks the SH3-like barrel first strand that can be complemented by bound peptide ligand; in shadow chromo domain the corresponding site is altered by insertion; similarity to the IL8-like fold
b.34.13.3: Chromo barrel domain [117157] (3 proteins)
typical SH3-like barrel fold; similar sequence motif to the canonical chromo domain
More info for Superfamily b.34.13: Chromo domain-like
Timeline for Superfamily b.34.13: Chromo domain-like:
- Superfamily b.34.13: Chromo domain-like first appeared (with stable ids) in SCOP 1.55, called Superfamily d.9.2: Chromo domain-like
- Superfamily b.34.13: Chromo domain-like appears in SCOP 1.73
- Superfamily b.34.13: Chromo domain-like appears in SCOPe 2.01
- Superfamily b.34.13: Chromo domain-like appears in the current release, SCOPe 2.08