View source for Modified Nucleotides within RNAs in S. cerevisiae

These tables list positions of nucleotide modifications, both pseudouridylation and ribose 2'-O-methylation, within ribosomal RNAs ([[#5SrRNA|5S rRNA]], [[#5.8SrRNA|5.8S rRNA]], [[#18SrRNA|18S rRNA]], and [[#25SrRNA|25S rRNA]]) and snRNAs ([[#U1snRNA|U1 snRNA]], [[#U2snRNA|U2 snRNA]], and [[#U5snRNA|U5 snRNA]]). Many of these modifications are performed by small nucleolar ribonucleic acid complexes (snoRNPs) where a specific snoRNA guides the position of modification; in these cases, only the snoRNA is listed, though the proteins of the snoRNP complex are required to catalyze the modification. For a list of all snoRNAs, see the table of [http://yeastmine.yeastgenome.org/yeastmine/results.do?trail=%7Cresults.517&table=results.517&queryBuilder=snoRNAs snoRNAs in ''S. cerevisiae'']. Other modifications are directed and catalyzed by a protein enzyme without snoRNA guidance. Within the sequence context column, the modified nucleotide is shown in red.
<br>

Many thanks to Wayne Decatur and Dorota Piekna-Przybylska for providing the coordinates of the modification sites within the 18S and 25S rRNAs with respect to the genome of ''S. cerevisiae''. Note that older papers have used alternate coordinate systems; links to tables providing the correspondance between old and current coordinates are provided within these two tables. For more detailed information about the snoRNAs, see the SGD Locus Summaries for each or the [http://people.biochem.umass.edu/sfournier/fournierlab/snornadb/main.php snoRNA database at UMass Amherst].

{| {{table}} border="1"
| align="center" style="background:#FFDEAD;" colspan=4 id=5SrRNA|'''Modified Position within the 5S rRNA'''<br>''compiled June 2008''
|-
| align="center" style="background:#819FF7;"|'''Position'''
| align="center" style="background:#819FF7;"|'''Modification Type'''
| align="center" style="background:#819FF7;"|'''Sequence Context of Modification'''
| align="center" style="background:#819FF7;"|'''Gene Associated with Modification'''
|-
|50<sup>1</sup>
|pseudouridylation
|AACUG<span style="color:#FF0000">'''U'''</span>AGUUA
|[http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=PUS7 PUS7]
|-
| align="center" style="background:#819FF7;" colspan=4|'''References'''
|-
| colspan=4|1. '''Decatur WA and Schnare MN, et al.''' (2008) Different mechanisms for Pseudouridine formation in yeast 5S and 5.8S rRNAs. Mol Cell Biol 28(10):3089-100<br>[http://www.yeastgenome.org/reference/S000125816/overview SGD Paper] | [http://www.ncbi.nlm.nih.gov/pubmed/18332121?dopt=Abstract PubMed]
|-
| align="center" style="background:#FFDEAD;" colspan=4 id=5.8SrRNA|'''Modified Position within the 5.8S rRNA'''<br>''compiled June 2008''
|-
| align="center" style="background:#819FF7;"|'''Position'''
| align="center" style="background:#819FF7;"|'''Modification Type'''
| align="center" style="background:#819FF7;"|'''Sequence Context of Modification'''
| align="center" style="background:#819FF7;"|'''Gene Associated with Modification'''
|-
|73<sup>1</sup>
|pseudouridylation
|GUGAA<span style="color:#FF0000">'''U'''</span>UGCAG
|[http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR43 snR43]
|-
| align="center" style="background:#819FF7;" colspan=4|'''References'''
|-
| colspan=4|1. '''Decatur WA and Schnare MN, et al.''' (2008) Different mechanisms for Pseudouridine formation in yeast 5S and 5.8S rRNAs. Mol Cell Biol 28(10):3089-100<br>[http://www.yeastgenome.org/reference/S000125816/overview SGD Paper] | [http://www.ncbi.nlm.nih.gov/pubmed/18332121?dopt=Abstract PubMed]
|-
| align="center" style="background:#FFDEAD;" colspan=4 id=18srRNA|'''Modified Position within the 18S rRNA'''<br>''compiled June 2007''<br>[http://people.biochem.umass.edu/sfournier/fournierlab/snornadb/nm18s.php ''see alternate numbering systems for the 18S ribose methylations'']<br>[http://people.biochem.umass.edu/sfournier/fournierlab/snornadb/psi18s.php ''see alternate numbering systems for the 18S pseudouridylations'']
|-
| align="center" style="background:#819FF7;"|'''Position'''
| align="center" style="background:#819FF7;"|'''Modification Type'''
| align="center" style="background:#819FF7;"|'''Sequence Context of Modification'''
| align="center" style="background:#819FF7;"|'''Gene Associated with Modification'''
|-
|28
|ribose 2'-O-methylation (on A)
|GUCAU<span style="color:#FF0000">'''A'''</span>UGCUU
|[http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR74 snR74]
|-
| 100
| ribose 2'-O-methylation (on A)
| GGCUC<font color="red"><b>A</b></font>UUAAA
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR51 snR51]
|- 
| 106
| pseudouridylation
| UUAAA<font color="red"><b>U</b></font>CAGUU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR44 snR44]
|- 
| 120
| pseudouridylation
| GUUUA<font color="red"><b>U</b></font>UUGAU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR49 snR49]
|- 
| 211
| pseudouridylation
| AUUUA<font color="red"><b>U</b></font>UAGAU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR49 snR49]
|- 
| 302
| pseudouridylation
| UCAAA<font color="red"><b>U</b></font>UUCUG
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR49 snR49]
|- 
| 414
| ribose 2'-O-methylation (on C)
| CACAU<font color="red"><b>C</b></font>CAAGG
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR128 snR128]
|- 
| 420
| ribose 2'-O-methylation (on A)
| CAAGG<font color="red"><b>A</b></font>AGGCA
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR52 snR52]
|- 
| 436
| ribose 2'-O-methylation (on A)
| CGCGC<font color="red"><b>A</b></font>AAUUA
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR87 snR87]
|- 
| 466
| pseudouridylation
| GGUAG<font color="red"><b>U</b></font>GACAA
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR189 snR189]
|- 
| 541
| ribose 2'-O-methylation (on A)
| CGAGG<font color="red"><b>A</b></font>ACAAU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR41 snR41]
|- 
| 578
| ribose 2'-O-methylation (on U)
| CGCGG<font color="red"><b>U</b></font>AAUUC
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR77 snR77]
|- 
| 619
| ribose 2'-O-methylation (on A)
| CAGUU<font color="red"><b>A</b></font>AAAAG
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR47 snR47]
|- 
| 632
| pseudouridylation
| CGUAG<font color="red"><b>U</b></font>UGAAC
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR161 snR161]
|- 
| 759
| pseudouridylation
| AAAAU<font color="red"><b>U</b></font>AGAGU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR80 snR80]
|- 
| 766
| pseudouridylation
| GAGUG<font color="red"><b>U</b></font>UCAAA
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR161 snR161]
|- 
| 796
| ribose 2'-O-methylation (on A)
| AUAUU<font color="red"><b>A</b></font>GCAUG
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR53 snR53]
|- 
| 974
| ribose 2'-O-methylation (on A)
| CAAGA<font color="red"><b>A</b></font>CGAAA
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR54 snR54]
|- 
| 999
| pseudouridylation
| GAUGA<font color="red"><b>U</b></font>CAGAU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR31 snR31]
|- 
| 1007
| ribose 2'-O-methylation (on C)
| GAUAC<font color="red"><b>C</b></font>GUCGU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR79 snR79]
|- 
| 1126
| ribose 2'-O-methylation (on G)
| CGCAA<font color="red"><b>G</b></font>GCUGA
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR41 snR41]
|- 
| 1181
| pseudouridylation
| GCGGC<font color="red"><b>U</b></font>UAAUU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR85 snR85]
|- 
| 1187
| pseudouridylation
| UAAUU<font color="red"><b>U</b></font>GACUC
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR36 snR36]
|- 
| 1191
| pseudouridylation<br> Note that subsequent additional modifications generate m<sup>1</sup>acp<sup>3</sup>-psi.
| UUGAC<font color="red"><b>U</b></font>CAACA
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR35 snR35]
|- 
| 1269
| ribose 2'-O-methylation (on U)
| GGUGG<font color="red"><b>U</b></font>GGUGC
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR55 snR55]
|- 
| 1271
| ribose 2'-O-methylation (on G)
| UGGUG<font color="red"><b>G</b></font>UGCAU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR40 snR40]
|- 
| 1290
| pseudouridylation
| UUAGU<font color="red"><b>U</b></font>GGUGG 
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR83 snR83]
|- 
| 1415
| pseudouridylation
| AAGUU<font color="red"><b>U</b></font>GAGGC
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR83 snR83]
|- 
| 1428
| ribose 2'-O-methylation (on G)
| UAACA<font color="red"><b>G</b></font>GUCUG
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR56 snR56]
|- 
| 1572
| ribose 2'-O-methylation (on G)
| UCAAC<font color="red"><b>G</b></font>AGGAA
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR57 nR57]
|- 
| 1639
| ribose 2'-O-methylation (on C)
| CACCG<font color="red"><b>C</b></font>CCGUC
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR70 snR70]
|-
| align="center" style="background:#819FF7;" colspan=4|'''References'''
|-
|colspan=4|1. All information in this table courtesy of Wayne Decatur and Dorota Piekna-Przybylska; also see the table of snoRNAs or the locus summary and literature guide pages for each specific gene to view references.
|-
|colspan=4|2. Piekna-Przybylska D, et al. (2007) New bioinformatic tools for analysis of nucleotide modifications in eukaryotic rRNA. RNA 13(3):305-12<br>[http://www.yeastgenome.org/reference/S000120772/overview SGD Paper] | [http://www.ncbi.nlm.nih.gov/pubmed/17283215?dopt=Abstract PubMed]
|-
| align="center" style="background:#FFDEAD;" colspan=4 id=25SrRNA|'''Modified Position within the 25S rRNA'''<br>''compiled June 2007''<br>[http://people.biochem.umass.edu/sfournier/fournierlab/snornadb/nm25s.php ''see alternate numbering systems for the 25S ribose methylations'']<br>[http://people.biochem.umass.edu/sfournier/fournierlab/snornadb/psi25s.php see alternate numbering systems for the 25S pseudouridylations]
|-
| align="center" style="background:#819FF7;"|'''Position'''
| align="center" style="background:#819FF7;"|'''Modification Type'''
| align="center" style="background:#819FF7;"|'''Sequence Context of Modification'''
| align="center" style="background:#819FF7;"|'''Gene Associated with Modification'''
|- 
| 649
| ribose 2'-O-methylation (on A)
| GAAAC<font color="red"><b>A</b></font>CGGAC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR1 snR18]
|- 
| 650
| ribose 2'-O-methylation (on C)
| AAACA<font color="red"><b>C</b></font>GGACC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR18 snR18]
|- 
| 663
| ribose 2'-O-methylation (on C)
| GGAGU<font color="red"><b>C</b></font>UAACG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR58 snR58]
|- 
| 776
| pseudouridylation
| AUGGA<font color="red"><b>U</b></font>UUGAG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR80 snR80]
|- 
| 805
| ribose 2'-O-methylation (on G)
| GACCC<font color="red"><b>G</b></font>AAAGA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR39B snR39B]
|- 
| 807
| ribose 2'-O-methylation (on A)
| CCCGA<font color="red"><b>A</b></font>AGAUG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR39 snR39]<br> [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR59 snR59]
|- 
| 817
| ribose 2'-O-methylation (on A)
| GGUGA<font color="red"><b>A</b></font>CUAUG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR60 snR60]
|- 
| 867
| ribose 2'-O-methylation (on G)
| UCGUA<font color="red"><b>G</b></font>CGGUU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR50 snR50]
|- 
| 876
| ribose 2'-O-methylation (on A)
| UUCUG<font color="red"><b>A</b></font>CGUGC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR72 snR72]
|- 
| 898
| ribose 2'-O-methylation (on U)
| CGAAU<font color="red"><b>U</b></font>UGGGU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR40 snR40]
|- 
| 908
| ribose 2'-O-methylation (on G)
| UAUAG<font color="red"><b>G</b></font>GGCGA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR60 snR60]
|- 
| 960
| pseudouridylation
| UUCCC<font color="red"><b>U</b></font>CAGGA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR8 snR8]
|- 
| 966
| pseudouridylation
| CAGGA<font color="red"><b>U</b></font>AGCAG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR43 snR43]
|- 
| 986
| pseudouridylation
| UCAGU<font color="red"><b>U</b></font>UUAUG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR8 snR8]
|- 
| 990
| pseudouridylation
| UUUUA<font color="red"><b>U</b></font>GAGGU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR49 snR49]
|- 
| 1004
| pseudouridylation
| GCGAA<font color="red"><b>U</b></font>GAUUA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR5 snR5]
|- 
| 1042
| pseudouridylation
| CCUAU<font color="red"><b>U</b></font>CUCAA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR33 snR33]
|- 
| 1052
| pseudouridylation
| AACUU<font color="red"><b>U</b></font>AAAUA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR81 snR81]
|- 
| 1056
| pseudouridylation
| UUAAA<font color="red"><b>U</b></font>AUGUA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR44 snR44]
|- 
| 1110
| pseudouridylation
| AGCUU<font color="red"><b>U</b></font>UAGUG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR82 snR82]
|- 
| 1124
| pseudouridylation
| CAUUU<font color="red"><b>U</b></font>UGGUA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR5 snR5]
|- 
| 1133
| ribose 2'-O-methylation (on A)
| UAAGC<font color="red"><b>A</b></font>GAACU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR61 snR61]
|- 
| 1437
| ribose 2'-O-methylation (on C)
| CAGAU<font color="red"><b>C</b></font>UUGGU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR24 snR24]
|- 
| 1449
| ribose 2'-O-methylation (on C)
| GUAGU<font color="red"><b>A</b></font>GCAAA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR24 snR24]
|- 
| 1450
| ribose 2'-O-methylation (on C)
| UAGUA<font color="red"><b>G</b></font>CAAAU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR24 snR24]
|- 
| 1888
| ribose 2'-O-methylation (on U)
| AAUAA<font color="red"><b>U</b></font>GUAGA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR62 snR62]
|- 
| 2129
| pseudouridylation
| GAAUC<font color="red"><b>U</b></font>GACUG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR3 snR3]
|- 
| 2133
| pseudouridylation
| CUGAC<font color="red"><b>U</b></font>GUCUA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR3 snR3]
|- 
| 2191
| pseudouridylation
| UGAUU<font color="red"><b>U</b></font>CUGCC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR32 snR32]
|- 
| 2197
| ribose 2'-O-methylation (on C)
| CUGCC<font color="red"><b>C</b></font>AGUGC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR76 snR76]
|- 
| 2220
| ribose 2'-O-methylation (on A)
| AGUGA<font color="red"><b>A</b></font>GAAAU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR47 snR47]
|- 
| 2256
| ribose 2'-O-methylation (on A)
| GAGUA<font color="red"><b>A</b></font>CUAUG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR63 snR63]
|- 
| 2258
| pseudouridylation
| GUAAC<font color="red"><b>U</b></font>AUGAC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR191 snR191]
|- 
| 2260
| pseudouridylation
| AACUA<font color="red"><b>U</b></font>GACUC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR191 snR191]
|- 
| 2264
| pseudouridylation
| AUGAC<font color="red"><b>U</b></font>CUCUU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR3 snR3]
|- 
| 2266
| pseudouridylation
| GACUC<font color="red"><b>U</b></font>CUUAA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR84 snR84]
|- 
| 2314
| pseudouridylation
| AUGAA<font color="red"><b>U</b></font>GGAUU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR86 snR86]
|- 
| 2340
| pseudouridylation
| GUCCC<font color="red"><b>U</b></font>AUCUA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR9 snR9]
|- 
| 2349
| pseudouridylation
| UACUA<font color="red"><b>U</b></font>CUAGC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR82 snR82]
|- 
| 2280
| ribose 2'-O-methylation (on A)
| AGCCA<font color="red"><b>A</b></font>AUGCC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR13 snR13]
|- 
| 2281
| ribose 2'-O-methylation (on A)
| GCCAA<font color="red"><b>A</b></font>UGCCU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR13 snR13]
|- 
| 2288
| ribose 2'-O-methylation (on G)
| GCCUC<font color="red"><b>G</b></font>UCAUC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR75 snR75]
|- 
| 2337
| ribose 2'-O-methylation (on C)
| ACUGU<font color="red"><b>C</b></font>CCUAU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR64 snR64]
|- 
| 2347
| ribose 2'-O-methylation (on U)
| UCUAC<font color="red"><b>U</b></font>AUCUA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR65 snR65]
|- 
| 2351
| pseudouridylation
| CUAUC<font color="red"><b>U</b></font>AGCGA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR82 snR82]
|- 
| 2416
| pseudouridylation
| UGAGC<font color="red"><b>U</b></font>UGACU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR11 snR11]
|- 
| 2417
| ribose 2'-O-methylation (on U)
| GAGCU<font color="red"><b>U</b></font>GACUC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR66 snR66]
|- 
| 2421
| ribose 2'-O-methylation (on U)
| UUGAC<font color="red"><b>U</b></font>CUAGU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR78 snR78]
|- 
| 2619
| ribose 2'-O-methylation (on G)
| GGCUG<font color="red"><b>G</b></font>GGCGG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR67 snR67]
|- 
| 2640
| ribose 2'-O-methylation (on A)
| AAACG<font color="red"><b>A</b></font>UAACG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR68 snR68]
|- 
| 2724
| ribose 2'-O-methylation (on U)
| UGAUU<font color="red"><b>U</b></font>UCAGU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR67 snR67]
|- 
| 2729
| ribose 2'-O-methylation (on U)
| UUCAG<font color="red"><b>U</b></font>GUGAA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR51 snR51]
|- 
| 2735
| pseudouridylation
| GUGAA<font color="red"><b>U</b></font>ACAAA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR189 snR189]
|- 
| 2791
| ribose 2'-O-methylation (on G)
| GGCUA<font color="red"><b>G</b></font>AGGUG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR48 snR48]
|- 
| 2793
| ribose 2'-O-methylation (on G)
| CUAGA<font color="red"><b>G</b></font>GUGCC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR48 snR48]
|- 
| 2815
| ribose 2'-O-methylation (on G)
| CACAG<font color="red"><b>G</b></font>GAUAA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR38 nR38]
|- 
| 2826
| pseudouridylation
| CUGGC<font color="red"><b>U</b></font>UGUGG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR34 snR34]
|- 
| 2865
| pseudouridylation
| UUUGA<font color="red"><b>U</b></font>UCUUC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR46 snR46]
|- 
| 2880
| pseudouridylation
| UCGGC<font color="red"><b>U</b></font>CUUCC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR34 snR34]
|- 
| 2921
| ribose 2'-O-methylation (on U)
| UGGAU<font color="red"><b>U</b></font>GUUCA
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR52 snR52]
|- 
| 2922
| ribose 2'-O-methylation (on G)
| GGAUU<font color="red"><b>G</b></font>UUCAC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=SPB1 SPB1]
|- 
| 2923
| pseudouridylation
| GAUUG<font color="red"><b>U</b></font>UCACC
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR10 snR10]
|- 
| 2944
| pseudouridylation
| GAACG<font color="red"><b>U</b></font>GAGCU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR37 snR37]
|- 
| 2946
| ribose 2'-O-methylation (on A)
| ACGUG<font color="red"><b>A</b></font>GCUGG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR71 snR71]
|- 
| 2948
| ribose 2'-O-methylation (on C)
| GUGAG<font color="red"><b>C</b></font>UGGGU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR69 snR69]
|- 
| 2959
| ribose 2'-O-methylation (on C)
| UUAGA<font color="red"><b>C</b></font>CGUCG
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR73 snR73]
|- 
| 2975
| pseudouridylation
| CAGGU<font color="red"><b>U</b></font>AGUUU
| [http://www.yeastgenome.org/cgi-bin/locus.pl?locus=snR42 snR42]
|-
| align="center" style="background:#819FF7;" colspan=4|'''References'''
|-
|colspan=4|1. All information in this table courtesy of Wayne Decatur and Dorota Piekna-Przybylska; also see the table of snoRNAs or the locus summary and literature guide pages for each specific gene to view references.
|-
|colspan=4|2. Piekna-Przybylska D, et al. (2007) New bioinformatic tools for analysis of nucleotide modifications in eukaryotic rRNA. RNA 13(3):305-12<br>[http://www.yeastgenome.org/reference/S000120772/overview SGD Paper] | [http://www.ncbi.nlm.nih.gov/pubmed/17283215?dopt=Abstract PubMed]
|-
| align="center" style="background:#FFDEAD;" colspan=4 id=U1snRNA|'''Modified Position within the [http://www.yeastgenome.org/cgi-bin/locus.fpl?dbid=S000007295 U1 snRNA]'''<br>''compiled June 2007''
|-
| align="center" style="background:#819FF7;"|'''Position'''
| align="center" style="background:#819FF7;"|'''Modification Type'''
| align="center" style="background:#819FF7;"|'''Sequence Context of Modification'''
| align="center" style="background:#819FF7;"|'''Gene Associated with Modification'''
|-
| 5<sup>1</sup>
| pseudouridylation
| AUAC<font color="red"><b>U</b></font>UACCU
| not yet known
|-
| 6<sup>1</sup>
| pseudouridylation
| AUACU<font color="red"><b>U</b></font>ACCUU
| not yet known
|-
| align="center" style="background:#819FF7;" colspan=4|'''References'''
|-
|colspan=4|1. '''Massenet S, ''et al''.''' (1999) Pseudouridine mapping in the Saccharomyces cerevisiae spliceosomal U small nuclear RNAs (snRNAs) reveals that pseudouridine synthase pus1p exhibits a dual substrate specificity for U2 snRNA and tRNA. Mol Cell Biol 19(3):2142-54 [http://www.yeastgenome.org/reference/S000054022/overview SGD Paper] | [http://www.ncbi.nlm.nih.gov/pubmed/10022901?dopt=Abstract PubMed]
|-
| align="center" style="background:#FFDEAD;" colspan=4 id=U2snRNA|'''Modified Position within the [http://www.yeastgenome.org/cgi-bin/locus.fpl?dbid=S000006478 U2 snRNA]'''<br>''compiled June 2007''
|-
| align="center" style="background:#819FF7;"|'''Position'''
| align="center" style="background:#819FF7;"|'''Modification Type'''
| align="center" style="background:#819FF7;"|'''Sequence Context of Modification'''
| align="center" style="background:#819FF7;"|'''Gene Associated with Modification'''
|-
| 35<sup>1</sup>
| pseudouridylation
| AAGUG<font color="red"><b>U</b></font>AGUAU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=PUS7 PUS7]
|-
| 42<sup>1</sup>
| pseudouridylation
| GUAUC<font color="red"><b>U</b></font>GUUCU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR81 snR81]
|-
| 44<sup>1</sup>
| pseudouridylation
| UCUGU<font color="red"><b>U</b></font>CUUUU
| [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=PUS1 PUS1]
|-
| align="center" style="background:#819FF7;" colspan=4|'''References'''
|-
|colspan=4|1. '''Massenet S, ''et al''.''' (1999) Pseudouridine mapping in the Saccharomyces cerevisiae spliceosomal U small nuclear RNAs (snRNAs) reveals that pseudouridine synthase pus1p exhibits a dual substrate specificity for U2 snRNA and tRNA. Mol Cell Biol 19(3):2142-54 [http://www.yeastgenome.org/reference/S000054022/overview SGD Paper] | [http://www.ncbi.nlm.nih.gov/pubmed/10022901?dopt=Abstract PubMed]
|-
|colspan=4|2. '''Ma X, ''et al''.''' (2003) Pseudouridylation (Psi) of U2 snRNA in S. cerevisiae is catalyzed by an RNA-independent mechanism. EMBO J 22(8):1889-97 [http://www.yeastgenome.org/reference/S000072999/overview SGD Paper] | [http://www.ncbi.nlm.nih.gov/pubmed/12682021?dopt=Abstract PubMed]
|-
|colspan=4|3. '''Ma X, ''et al''.''' (2005) Pseudouridylation of yeast U2 snRNA is catalyzed by either an RNA-guided or RNA-independent mechanism. EMBO J 24(13):2403-13 [http://www.yeastgenome.org/reference/S000082374/overview SGD Paper] | [http://www.ncbi.nlm.nih.gov/pubmed/15962000?dopt=Abstract PubMed]
|-
| align="center" style="background:#FFDEAD;" colspan=4 id=U5snRNA|'''Modified Position within the [http://www.yeastgenome.org/cgi-bin/locus.fpl?locus=snR7 U5 snRNA]'''<br>''compiled June 2007''
|-
| align="center" style="background:#819FF7;"|'''Position'''
| align="center" style="background:#819FF7;"|'''Modification Type'''
| align="center" style="background:#819FF7;"|'''Sequence Context of Modification'''
| align="center" style="background:#819FF7;"|'''Gene Associated with Modification'''
|-
| 99<sup>1</sup>
| pseudouridylation
| CCUUU<font color="red"><b>U</b></font>ACCAG
| not yet known
|-
| align="center" style="background:#819FF7;" colspan=4|'''References'''
|-
|colspan=4|1. '''Massenet S, ''et al''.''' (1999) Pseudouridine mapping in the Saccharomyces cerevisiae spliceosomal U small nuclear RNAs (snRNAs) reveals that pseudouridine synthase pus1p exhibits a dual substrate specificity for U2 snRNA and tRNA. Mol Cell Biol 19(3):2142-54 [http://www.yeastgenome.org/reference/S000054022/overview SGD Paper] | [http://www.ncbi.nlm.nih.gov/pubmed/10022901?dopt=Abstract PubMed]
|}