E.g if a protein of mouse parasite is monomer, can it be possible that in case of human parasite same protein has multimeric forms.
Differences between protein multimers have been observed between species (and also cellular compatments). For example most thiolases are dimers, but some tetramers (or should I say dimers of dimers) and recently a hexamer have been identified also. Though, for a monomer vs. other multimers between species I do not have an example on.
Yes it is quite possible. I have at least two examples which i worked on my phD thesis. I guess there should be many others.
Tx, Arne, and Ranjan !!!!!
Ranjan, could be tell some published literatures related to it.
Tx
Have a look at this article, more so on the "thiolase-superfamily fold" section. http://www.sciencedirect.com/science/article/pii/S0968000405003415
I don't understand why you are curious! Yes, homologous proteins might have different forms between species and they can be regulated by external factors.
Tx , i already satisfy with Arne answer !!! First time dealing with this type of protein practically !!! that why curious to know more. Any way Tx again to show some curiosity!!!!
you can just see table one of this paper http://www.chem.missouri.edu/TannerGroup/pdfs/LuebberingetalJMB2012.pdf
look at the small heat shock protein family, the mostly form oligomers but of varying size depending on the species with the smallest one (Tsp36 from tapewarm) being a dimer and the largest ones (Hsp27 and alfa crystallin) being up to 36-mer in humans
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