NCIt definition : Human CXCR4 wild-type allele is located within 2q21 and is approximately 4 kb in length.
This allele, which encodes C-X-C chemokine receptor type 4 protein, plays a role in
the mediation of leukocyte and hematopoietic cell migration and may be involved in
central nervous system development. Mutations in this gene have been associated with
WHIM (warts, hypogammaglobulinemia, infections, and myelokathexis) syndrome.;