3b3l is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
↑ Trinh CH, Asipu A, Bonthron DT, Phillips SE. Structures of alternatively spliced isoforms of human ketohexokinase. Acta Crystallogr D Biol Crystallogr. 2009 Mar;65(Pt 3):201-11. Epub 2009, Feb 20. PMID:19237742 doi:S0907444908041115
↑ Bonthron DT, Brady N, Donaldson IA, Steinmann B. Molecular basis of essential fructosuria: molecular cloning and mutational analysis of human ketohexokinase (fructokinase). Hum Mol Genet. 1994 Sep;3(9):1627-31. PMID:7833921