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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.
A double slash // indicates a gap in genome assembly. Distances in bp (base pair) or in kb (kilobase) associated with a double slash are taken into account in the length of the lines and included in the numbers displayed at the right end of the lines.
A dotted line ... indicates the distance in kb (kilobase) between the locus and its bornes (5' borne and the most 5' gene in the locus and/or 3' borne and the most 3' gene in the locus) on the top and bottom lines, respectively. These distances are not represented at scale and are not included in the numbers displayed at the right ends of these two lines.

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).
Created:
04/06/2002
Last updated:
29/06/2011
Authors:
Nathalie Bosc
Editor:
Chantal Ginestoux