The immunoglobulin M heavy chain constant region gene of the channel catfish, Ictalurus punctatus: an unusual mRNA splice pattern produces the membrane form of the molecule.

Short Communication:Effects of the addition of a marigold extract to diets fed to channel catfish (Ictalurus punctatus) on growth parameters

Short Communication:Effects of the addition of a marigold extract to diets fed to channel catfish (Ictalurus punctatus) on growth parameters

A novel chimeric Ig heavy chain from a teleost fish shares similarities to IgD.

IgD is considered to be a recently evolved Ig, being previously found only in primates and rodents. Here we describe, from a teleost fish (the channel catfish, Ictalurus punctatus), a novel complex chimeric Ig heavy chain, homologous, in part, to the heavy chain (delta) of IgD. In addition to alternative secretory or membrane-associated C termini, this chimeric molecule contains a rearranged va...

Structure and genomic organization of a second cluster of immunoglobulin heavy chain gene segments in the channel catfish.

The structure, organization, and partial sequence of a 25-kb genomic region containing a second cluster of H chain gene segments in the channel catfish (Ictalurus punctatus) has been determined. Multiple VH gene segments, representing different VH families, are located upstream of a germline-joined VDJ. The VDJ segment has a split leader sequence and a single open reading consistent with that e...

Cloning and expression of the constant region of rainbow trout (Onchorhynchus mykiss) µ immunoglobulin chain in Escherichia coli

The importance of rainbow trout (Onchorhynchus mykiss) in Iran aquaculture industry on one hand, and increasing the mortality of this fish due to outbreaks of infectious diseases, on the other hand, indicate the requirement for more profound understanding the rainbow trout immune system and access to laboratory tools for definitive diagnosis of its diseases. One of the most important defense me...