It is a mixture of modifications involving that of the pseudouridine residues that assist in the complete assembly of the 17S U2 snRNP particle needed for splicing.
22.
This residue ( U3797 ) is also predicted to be pseudouridylated ( the uridine residue is converted to pseudouridine ) by the H / ACA box snoRNA ACA48.
23.
This H / ACA box class of snoRNA and is predicted to be responsible for guiding the modification of uridines 1377 and 1279 to pseudouridine in Drosophila 18S rRNA.
24.
This H / ACA box class of snoRNA and is predicted to be responsible for guiding the modification of uridines 1854 and 1937 to pseudouridine in Drosophila 18S rRNA.
25.
This H / ACA box class of snoRNA and is predicted to be responsible for guiding the modification of uridines 2876 and 2956 to pseudouridine in Drosophila 28S rRNA.
26.
:S-adenosyl-L-methionine + pseudouridine 54 in tRNA \ rightleftharpoons S-adenosyl-L-homocysteine + N 1-methylpseudouridine 54 in tRNA
27.
A certain paper looks at pseudouridylation in yeast and human RNAs using pseudo-seq, a process that utilizes a single-nucleotide-resolution method for pseudouridine identification.
28.
:S-adenosyl-L-methionine + pseudouridine 1915 in 23S rRNA \ rightleftharpoons S-adenosyl-L-homocysteine + N 3-methylpseudouridine 1915 in 23S rRNA
29.
This H / ACA box class of snoRNA and is predicted to be responsible for guiding the modification of uridine 3327 in Drosophila 28S and U1920 in Drosophila 18S rRNA to pseudouridine.
30.
:S-adenosyl-L-methionine + pseudouridine 1191 in yeast 18S rRNA \ rightleftharpoons S-adenosyl-L-homocysteine + N 1-methylpseudouridine 1191 in yeast 18S rRNA
