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Table 1 The four prion sequences*

From: A method to assess compositional bias in biological sequences and its application to prion-like glutamine/asparagine-rich domains in eukaryotic proteomes

 

Notable single-residue bias counts for prion determinant domain (Pbias in brackets)†

Notable LPSs (for whole sequence)‡

Prion sequence: Ure2p (YNL229C)

Prion determinant is residues 1-65

  

MM NNNGNQVSNLSNALRQVNIGNRNSNTTTDQSNINFEFSTG

VNNNNNNNSSSNNNNVQNNNSGR NGSQNNDNENNIKNTLEQH

RQQQQAFSDMSHVEYSRITKFFQEQPLEGYTLFSHRSAPNGFKV

AIVLSELGFHYNTIFLDFNLGEHRAPEFVSVNPNARVPALIDHGM

DNLSIWESGAILLHLVNKYYKETGNPLLWSDDLADQSQINAWLF

FQTSGHAPMIGQALHFRYFHSQKIASAVERYTDEVRRVYGVVE

MALAERREALVMELDTENAAAYSAGTTPMSQSRFFDYPVWLV

GDKLTIADLAFVPWNNVVDRIGINIKIEFPEVYKWTKHMMRRPA

VIKALRGE

N 27/65 (1.9 × 10-16)

N, 33 in 2 to 78 (1.2 × 10-16)

Q, 7 in 82 to 108 (5.5 × 10-5)

{QN}, 43 in 2 to 88 (1.2 × 10-20)

{DERK}, 10 in 2 to 88 (1.6 × 10-3)

{VILM}, 4 in 2 to 88 (1.8 × 10-3)

Prion sequence: Sup35p (YDR172W)

Prion determinant is residues 1-123

  

MSDSNQGNNQQNYQQYSQNGNQQQGNNRYQGYQAYNAQA

QPAGGYYQNYQGYSGYQQGGYQQYNPDAGYQQQYNPQGG

YQQYNPQGGYQQQFNPQGGRGNYKNFNYNNNLQGYQAGF

QPQSQ GMSLNDFQKQQKQAAPKPKKTLKLVSSSGIKLANATKK

VGTKPAESDKKEEEKSAETKEPTKEPTKVEEPVKKEEKPVQTEE

KTEEKSELPKVEDLKISESTHNTNNANVTSADALIKEQEEEVDDE

VVNDMFGGKDHVSLIFMGHVDAGKSTMGGNLLYLTGSVDKRTI

EKYEREAKDAGRQGWYLSWVMDTNKEERNDGKTIEVGKAYFE

TEKRRYTILDAPGHKMYVSEMIGGASQADVGVLVISARKGEYET

GFERGGQTREHALLAKTQGVNKMVVVVNKMDDPTVNWSKER

YDQCVSNVSNFLRAIGYNIKTDVVFMPVSGYSGANLKDHVDPK

ECPWYTGPTLLEYLDTMNHVDRHINAPFMLPIAAKMKDLGTIVE

GKIESGHIKKGQSTLLMPNKTAVEIQNIYNETENEVDMAMCGEQ

VKLRIKGVEEEDISPGFVLTSPKNPIKSVTKFVAQIAIVELKSIIAA

GFSCVMHVHTAIEEVHIVKLLHKLEKGTNRKSKKPPAFAKKGM

KVIAVLETEAPVCVETYQDYPQLGRFTLRDQGTTIAIGKIVKIAE

Q 35/123 (9.6 × 10-21)

Y 20/123 (4.9 × 10-9)

G 21/123 (5.9 × 10-7)

N 20/123 (3.7 × 10-5)

Q, 39 in 5 to 134 (7.3 × 10-24)

Y, 20 in 12 to 112 (1.4 × 10-10)

E, 23 in 166 to 248 (1.7 × 10-9)

K, 23 in 130 to 218 (5.5 × 10-8)

G, 20 in 19 to 122 (1.5 × 10-7)

N, 20 in 4 to 108 (3.6 × 10-6)

V, 47 in 188 to 653 (4.5 × 10-5)

{QN}, 60 in 4 to 134 (6.1 × 10-26)

{DERK}, 6 in 4 to 134 (8.0 × 10-9)

{VILM}, 2 in 4 to 134 (3.5 × 10-12)

Prion sequence: Rnq1p (YCL028W)

Prion determinant is residues 153-405

  

MDTDKLISEAESHFSQGNHAEAVAKLTSAAQSNPNDEQMSTIES

LIQKIAGYVMDNRSGGSDASQDRAAGGGSSFMNTLMADSKGSS

QTQLGKLALLATVMTHSSNKGSSNRGFDVGTVMSMLSGSGGGS

QSMGASGLAALASQFFKSGNNSQG QGQGQGQGQGQGQGQG

QGSFTALASLASSFMNSNNNNQQGQNQSSGGSSFGALASMAS

SFMHSNNNQNSNNSQQGYNQSYQNGNQNSQGYNNQQYQGG

NGGYQQQQGQSGGAFSSLASMAQSYLGGGQTQSNQQQYNQ

QGQNNQQQYQQQGQNYQHQQQGQQQQQGHSSSFSALASM

ASSYLGNNSNSNSSYGGQQQANEYGRPQHNGQQQSNEYGRP

QYGGNQNSNGQHESFNFSGNFSQQNNNGNQ NRY

Q 66/253 (4.2 × 10-35)

G 42/253 (6.6 × 10-12)

N 41/253 (7.4 × 10-9)

Q, 67 in 152 to 401 (2.1 × 10-36)

G, 60 in 50 to 399 (3.1 × 10-17)

N, 41 in 185 to 402 (8.3 × 10-11)

{QN}, 110 in 149 to 402 (3.2 × 10-43)

{DERK}, 5 in 149 to 402 (1.2 × 10-23)

{VILM}, 12 in 149 to 402 (8.9 × 10-17)

Prion sequence: New1p (YPL226W)

Prion determinant is residues 1-153

  

MPPKKFKDLNSFLDDQPKDPNLVASPFGGYFKNPAADAGSN

NASKKSSYQQQRNWKQGGNYQQGGYQSY NSNYNNYNNYNN

YNNYNNYNNYNKYN GQGYQKSTYKQSAVTPNQSGTPTPSAS

TTSLTSLNEKLSNLELTPISQFLSKIPECQSITDCKNQIKLIIEEF

GKEGNSTGEKIEEWKIVDVLSKFIKPKNPSLVRESAMLIISNIAQF

FSGKPPQEAYLLPFFNVALDCISDKENTVKRAAQHAIDSLLNCFP

MEALTCFVLPTILDYLSSGAKWQAKMAALSVVDRIREDSANDL

LELTFKDAVPVLTDVATDFKPELAKQGYKTLLDYVSILDNLDLS

PRYKLIVDTLQDPSKVPESVKSLSSVTFVAEVTEPSLSLLVPILNR

SLNLSSSSQEQLRQTVIVVENLTRLVNNRNEIESFIPLLLPGIQKV

VDTASLPEVRELAEKALNVLKEDDEADKENKFSGRLTLEEGRDF

LLDHLKDIKADDSCFVKPYMNDETVIKYMSKILTVDSNVNDWK

RLEDFLTAVFGGSDSQREFVKQDFIHNLRALFYQEKERADEDEGI

EIVNTDFSLAYGSRMLLNKTNLRLLKGHRYGLCGRNGAGKSTL

MRAIANGQLDGFPDKDTLRTCFVEHKLQGEEGDLDLVSFIALDE

ELQSTSREEIAAALESVGFDEERRAQTVGSLSGGWKMKLELARA

MLQKADILLLDEPTNHLDVSNVKWLEEYLLEHTDITSLIVSHDSG

FLDTVCTDIIHYENKKLAYYKGNLAAFVEQKPEAKSYYTLTDSN

AQMRFPPPGILTGVKSNTRAVAKMTDVTFSYPGAQKPSLSHVSC

SLSLSSRVACLGPNGAGKSTLIKLLTGELVPNEGKVEKHPNLRIG

YIAQHALQHVNEHKEKTANQYLQWRYQFGDDREVLLKESRKIS

EDEKEMMTKEIDIDDGRGKRAIEAIVGRQKLKKSFQYEVKWKY

WKPKYNSWVPKDVLVEHGFEKLVQKFDDHEASREGLGYRELIP

SVITKHFEDVGLDSEIANHTPLGSLSGGQLVKVVIAGAMWNNPH

LLVLDEPTNYLDRDSLGALAVAIRDWSGGVVMISHNNEFVGAL

CPEQWIVENGKMVQKGSAQVDQSKFEDGGNADAVGLKASNLA

KPSVDDDDSPANIKVKQRKKRLTRNEKKLQAERRRLRYIEWLSS

PKGTPKPVDTDDEED

N 26/153 (1.4 × 10-6)

N, 16 in 69 to 94 (9.8 × 10-14)

Y, 13 in 60 to 103 (1.2 × 10-9)

L, 74 in 253 to 738 (2.4 × 10-5)

Q, 11 in 49 to 112 (2.9 × 10-5)

R, 7 in 1149 to 1173 (7.5 × 10-5)

{QN}, 27 in 49 to 99 (1.8 × 10-14)

{DERK}, 3 in 49 to 99 (5.3 × 10-4)

{VILM}, 0 in 49 to 99 (8.1 × 10-7)

  1. *The prion determinant regions (found from experiment) are in bold, the LPSs for the whole protein sequence for the most pronounced single-amino-acid bias, are underlined. †All biases with a Pbias = 1 × 10-4 are listed for each prion sequence. ‡As examples, the counts for the sets of residues {DERK} and {VILM} that correspond to the {QN} lowest probability sequence are listed for each prion.