Intron retention. 5 ’ ss. Branch Point. 3 ’ ss. exon1. exon2. GU. A. AG. exon1. exon2. GU. A. AG. U2. U1. UG. exon1. U1. U4 ... Intron retention. 5 ’ ss. Branch Point. 3 ’ ss. exon1. exon2. GU. A. AG. exon1. exon2. GU. A. AG. U2. U1. UG. exon1. U1. U4 ... Exon skipping/inclusion Alternative 3 splice sites Alternative 5 splice sites Mutual exon exclusion Intron retention ... 2 conceptions: What is intron ? And what is exon ?. Recall the structuer of DNA. ...

Pairwise Alignments Part 1. Biology 224 Instructor: Tom Peavy Sept 8. <PowerPoint slides based on Bioinformatics and Functional Genomics by Jonathan Pevsner>. Pairwise alignments in the 1950s. b -corticotropin (sheep) Corticotropin A (pig). ala gly glu asp asp glu Slideshow...

Formation of Primary Transcript and Its Processing in Eukaryotes • The removal of introns from the primary transcript is called ... methylguanosine Introns are spliced out Poly-A tail is built at the 3 end Processing is catalyzed by protein-based enzymes and ... by RNA-based enzymes (ribozymes) Only some prokaryotes have to splice out introns but many process their tRNA precursors ...

Intron. T35S. Kan. (c). LB. RB. pK7GWIWG2(I). Intron R. Intron F. P35SR. T35SF. ...

1. Supplementary Figure 1. Distributions of ( A ) exon and ( B ) intron lengths in O. sativa and A. thaliana genes. Green bars ... 1. Supplementary Figure 1. Distributions of ( A ) exon and ( B ) intron lengths in O. sativa and A. thaliana genes. Green bars ...