Lineage for Protein: Stem cell factor, SCF
- Root: SCOP 1.73
Class a: All alpha proteins [46456] (258 folds) 
Fold a.26: 4-helical cytokines [47265] (1 superfamily)
core: 4 helices; bundle, closed; left-handed twist; 2 crossover connectionsSuperfamily a.26.1: 4-helical cytokines [47266] (3 families) 
there are two different topoisomers of this fold with different entanglements of the two crossover connections
Family a.26.1.2: Short-chain cytokines [47286] (11 proteins) 
Protein Stem cell factor, SCF [47299] (1 species)
forms dimer similar to the M-CSF and Flt3 ligand dimers
Species:
Human (Homo sapiens) [TaxId:9606] [47300] (2 PDB entries) - Domains for 1exz:
Domain d1exza_: 1exz A: [16877] 
Domain d1exzb_: 1exz B: [16878] 
Domain d1exzc_: 1exz C: [16879] 
Domain d1exzd_: 1exz D: [16880]
complexed with ca, sm, trs
- Domains for 1scf:
Domain d1scfa_: 1scf A: [16873] 
Domain d1scfb_: 1scf B: [16874] 
Domain d1scfc_: 1scf C: [16875] 
Domain d1scfd_: 1scf D: [16876]
complexed with 1pe, ca
- Domains for 1exz:
More info for Protein Stem cell factor, SCF from a.26.1.2: Short-chain cytokines
Timeline for Protein Stem cell factor, SCF from a.26.1.2: Short-chain cytokines:
- Protein Stem cell factor, SCF from a.26.1.2: Short-chain cytokines first appeared (with stable ids) in SCOP 1.55
- Protein Stem cell factor, SCF from a.26.1.2: Short-chain cytokines appears in SCOP 1.71
- Protein Stem cell factor, SCF from a.26.1.2: Short-chain cytokines appears in SCOP 1.75
- Protein Stem cell factor, SCF from a.26.1.2: Short-chain cytokines appears in the current release, SCOPe 2.08