'Human Immunoglobulin Kappa Variable (IGKV) Genes and Joining (IGKJ) Segments', second report of the 'IMGT Locus on Focus' section, comprises five tables entitled: (1) 'Number of human germline IGKV genes at 2p12 and potential repertoire'; (2) 'Human germline IGKV gene table'; (3) 'Human IGKV allele table'; (4) 'Human germline IGKJ table' and (5) 'Human IGKJ allele table'. These tables are available at the IMGT Marie-Paule page from IMGT, the international ImMunoGeneTics database (http://imgt.cnusc.fr:8104) created by Marie-Paule Lefranc, CNRS, Université Montpellier II, Montpellier, France.