SBC logo Authors: Amine Heddad, Andrea Krings, Markus Brameier and Bob MacCallum, Stockholm Bioinformatics Center, Stockholm University, Sweden.

NucPred

Fetching Q8HVY3 from www.uniprot.org...

The NucPred score for your sequence is 0.89 (see score help below)

   1  MAERANLVFHNKVIGGTAIKRLISRLIDHFGMAYTSHILDQVKTLGFRQA    50
51 TDTSISLGIDDLLTIPSKGWLVQDAEQQSLILEQHHHYGNVHAVEKLRQS 100
101 IEIWYATSEYFRQEMNPNFRMTDPFNPVHIMSFSGARGNASQVHQLVGMR 150
151 GLMSDPQGQMIDLPIQSNLREGLSLTEYIISCYGARKGVVDTAVRTSDAG 200
201 YLTRRLVEVVQHIVVRRTDCGTIQGISVNTQNGMMPERIWIQTLIGRVLA 250
251 DDIYRGSRCIAVRNQDIGIGLINRFKTLQTQPISIRTPFTCRNTSWICRL 300
301 CYGQSPTHGHLVELGEAVGIIAGQSIGEPGTQLTLRTFHTGGVFTGGTAE 350
351 QVRAPYNGKIQFNEDLVHPTRTRHGHPAFLCYIDLYVTIESGDIIHNVTI 400
401 PPKSFLLVQNNQYVKSEQVIAEIRAGTYTFNLKEKVRKHVYSDLEGEMHW 450
451 STDVYHASEFRYSNVHILPKTSHLWILSGKSYRSGSVSFSIRKDQDQMNI 500
501 HYLSTGERDFCNLLASKKKVRHKLFRFNPSDKKERRISDYSIFNQIISID 550
551 HCHFTHPTIFHDTTDLLAKRRRNRLIIPFQFQSIQERDKELMLASSISIE 600
601 IPINGIFRRNSILAYFDDPQYRTQSSGITKYRTIGINSIFKKEDFLIEYQ 650
651 GVKEFKTKYQIKVDQFFFIPEEVHILPESSSIMVRNNSIVEVDTLITLNI 700
701 RSRVRGLVRLEKKKKKIELKIFSGDIYFPGEMDKISRHSAVLIPPRTVKK 750
751 NSKEKKMKNWIYVQWITITKKKYFVLVRPVILYEIADRINLVKLFPQDMF 800
801 QERDNLELKVINYILSGNGKSIRGISDTSIQLVRTCLVLNWDQDKKFSSI 850
851 ENAHASFVEISIKGLVRYFLRIDLVKSHISYIRKRNNPPGSRFILDNESD 900
901 RTTINPFFSIDSREKIQQSLSKNHGTIRMLLNRNEKCRSLIILSSSNCFQ 950
951 IRSFNHGKYYNGIKEGINQIQRDAMIPIKNSLGPLGIAPQVAHFDFYRLI 1000
1001 THNQISIIKNGQLDKLKETFQVFQYYFLDENERIYKPDLCSNIILNPFYL 1050
1051 NWHFLHHNYCEKTFTIMSLGQFICENVCIVQTKNAPHLKSGQILTVQMDS 1100
1101 VGIRSANPYLATPGATVHGHYGEILSEGDILVTFIYEKSRSGDITQGLPK 1150
1151 VEQVLEVRSIDSISMNLEKRVDTWNGRITKILGIPWGFLIGAELTIAQSR 1200
1201 ISLVNKIQKVYRSQGVHIHNRHIEIIVRQITSKVLVSEDGMSNVFLPGEL 1250
1251 IGLLRAERAGRSLEEAICYRVLLLGITKTSLNTQSFISEASFQETARVLS 1300
1301 KAALRGRIDWLKGLKENVVLGGMIPVGTGFKRIMNRSKQRQYNKMTSETK 1350
1351 KKNLFEGEMRDILFHHREFFFFVSKNLCDTSQQSSI 1386

Positively and negatively influencing subsequences are coloured according to the following scale:

(non-nuclear) negative ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| positive (nuclear)

with NucPred



If you find NucPred useful, please cite this paper:
NucPred - Predicting Nuclear Localization of Proteins. Brameier M, Krings A, Maccallum RM. Bioinformatics, 2007. PubMed id: 17332022
The authors also look forward to your comments and suggestions.

What does the NucPred score mean?

You have to decide on a NucPred score threshold. Sequences which score greater than or equal to this threshold are predicted to spend some time in the nucleus. Higher thresholds yield fewer predicted nuclear proteins, but these predictions are more accurate (you can have higher confidence in them). The table below gives more details of the performance of NucPred estimated using the sequences it was trained on (by cross-validation). Another benchmark is available in the Bioinformatics 2007 paper.

NucPred score threshold Specificity Sensitivity
see above fraction of proteins predicted to be nuclear that actually are nuclear fraction of true nuclear proteins that are predicted (coverage)
0.10 0.45 0.88
0.20 0.52 0.83
0.30 0.57 0.77
0.40 0.63 0.69
0.50 0.70 0.62
0.60 0.71 0.53
0.70 0.81 0.44
0.80 0.84 0.32
0.90 0.88 0.21
1.00 1.00 0.02

Sequences which score >= 0.8 with NucPred and which are predicted by PredictNLS to contain an NLS have been shown to be 93% correct with a coverage of 16%. (PredictNLS by itself is 87% correct with 26% coverage on the same data.)

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