V+BASE

V BASE (immunoglobulin V gene databse)

VBASE2 is an integrative database of germ-line variable genes from the immunoglobulin loci of human and mouse. All variable gene sequences are extracted from the EMBL-Bank.

http://www.vbase2.org/

Basically this website can help identify the variants of heavy or light chain genes from human or mouse that are present in a human DNA sequence.