1. Not so bad after all: retroviruses and long terminal repeat retrotransposons as a source of new genes in vertebrates 
M. Naville, I.A. Warren, Z. Haftek-Terreau, D. Chalopin, F. Brunet, P. Levin, D. Galiana, J.-N. Volff 
Clinical Microbiology and Infection 
Volume 22, Issue 4, Pages (April 2016)
DOI: /j.cmi
Copyright © 2016 European Society of Clinical Microbiology and Infectious Diseases Terms and Conditions

2. Fig. 1
Vertebrate genes derived from LTR retrotransposons and retroviruses. The envelope sequence is only present in retroviruses but not in retrotransposons. CA, capsid; Env, envelope; LTR, long terminal repeat; MA, matrix; NC, nucleocapsid, Pol, polymerase; Pro, protease; RT, reverse transcriptase; Int, integrase.
Clinical Microbiology and Infection  , DOI: ( /j.cmi )
Copyright © 2016 European Society of Clinical Microbiology and Infectious Diseases Terms and Conditions