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Channel catfish (Ictalurus punctatus) IGH locus

Locus representation catfish IGH

Legend:
Colors are according to IMGT color menu for genes.
The boxes representing the genes are not to scale. Exons are not shown.

V Not Sequenced not sequenced genes.

There are two clusters containing IGHV, IGHD, IGHJ and IGHC (IGHM and IGHD) genes (Greg Warr, personnal communication 13/06/2002).
The IGHV genes belong to seven different subgroups.
The IGHV gene number and organization are not known but the average distance between genes is about 3 kb.

IMGT references:
  1. [1] Ventura-Holman, T. and Lobb, C.J., Mol. Immunol., 38, 557-564 (2001).
  2. [2] Ghaffari, S.H. and Lobb, C.J., J. Immunol., 162, 1519-1529 (1999).
IGHV genes
  1. [3] Ghaffari, S.H. and Lobb C.J., J. Immunol., 143, 2730-2739 (1989).
  2. [4] Ghaffari, S.H. and Lobb C.J., J. Immunol., 146, 1037-1046 (1991).
  3. [5] Warr, G.W. et al., Eur. J. Immunol., 18, 393-397 (1991).
  4. [6] Ventura-Holman, T. et al., Mol. Immunol., 31, 823-832 (1994).
  5. [7] Ventura-Holman, T. et al., Eur. J. Immunogenet., 23, 7-14 (1996).
  6. [8] Wilson, M. et al., Proc. Natl. Acad. Sci. USA, 94, 4593-4597 (1997).
  7. [9] Ghaffari, S.H. and Lobb, C.J., J. Immunol., 162, 1519-1529 (1999).
  8. [10] Hayman, J.R. and Lobb C.J., J. Immunol., 164, 1916-1924 (2000).
IGHD genes
  1. [11] Ghaffari, S.H. and Lobb, C.J., J. Immunol., 162, 1519-1529 (1999).
  2. [12] Hayman, J.R. and Lobb, C.J., J. Immunol., 164, 1916-1924 (2000).
IGHJ genes
  1. [13] Hayman, J.R. et al., J. Immunol., 151, 3587-3596 (1993).
  2. [14] Ghaffari, S.H. and Lobb C.J., Mol. Immunol., 29, 151-159 (1992).
  3. [15] Ghaffari, S.H. and Lobb, C.J., J. Immunol., 162, 1519-1529 (1999).
IGHC genes
  1. [16] Magor, B.G. et al., J. Immunol., 153, 5556-5563 (1994).
  2. [17] Wilson, L. et al., Proc. Natl. Acad. Sci. USA, 94, 4593-4597 (1997).
  3. [18] Ghaffari, S.H. and Lobb, C.J., J. Immunol., 162, 1519-1529 (1999).
  4. [19] Bengten, E. et al., Unpublished (2001).