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

NucPred

Fetching Q9C0E4 from www.uniprot.org...

The NucPred score for your sequence is 0.79 (see score help below)

   1  MLCGLSRETPGEADDGPYSKGGKDAGGADVSLACRRQSIPEEFRGITVVE    50
51 LIKKEGSTLGLTISGGTDKDGKPRVSNLRPGGLAARSDLLNIGDYIRSVN 100
101 GIHLTRLRHDEIITLLKNVGERVVLEVEYELPPPAPENNPRIISKTVDVS 150
151 LYKEGNSFGFVLRGGAHEDGHKSRPLVLTYVRPGGPADREGSLKVGDRLL 200
201 SVDGIPLHGASHATALATLRQCSHEALFQVEYDVATPDTVANASGPLMVE 250
251 IVKTPGSALGISLTTTSLRNKSVITIDRIKPASVVDRSGALHPGDHILSI 300
301 DGTSMEHCSLLEATKLLASISEKVRLEILPVPQSQRPLRPSEAVKVQRSE 350
351 QLHRWDPCVPSCHSPRPGHCRMPTWATPAGQDQSRSLSSTPFSSPTLNHA 400
401 FSCNNPSTLPRGSQPMSPRTTMGRRRQRRREHKSSLSLASSTVGPGGQIV 450
451 HTETTEVVLCGDPLSGFGLQLQGGIFATETLSSPPLVCFIEPDSPAERCG 500
501 LLQVGDRVLSINGIATEDGTMEEANQLLRDAALAHKVVLEVEFDVAESVI 550
551 PSSGTFHVKLPKKRSVELGITISSASRKRGEPLIISDIKKGSVAHRTGTL 600
601 EPGDKLLAIDNIRLDNCPMEDAVQILRQCEDLVKLKIRKDEDNSDELETT 650
651 GAVSYTVELKRYGGPLGITISGTEEPFDPIVISGLTKRGLAERTGAIHVG 700
701 DRILAINNVSLKGRPLSEAIHLLQVAGETVTLKIKKQLDRPLLPRKSGSL 750
751 SETSDADEDPADALKGGLPAARFSPAVPSVDSAVESWDSSATEGGFGGPG 800
801 SYTPQAAARGTTPQERRPGWLRGSPPPTEPRRTSYTPTPADESFPEEEEE 850
851 DDWEPPTSPAPGPAREEGFWRMFGEALEDLESCGQSELLRELEASIMTGT 900
901 VQRVALEGRPGHRPWQRGREVRASPAEMEELLLPTPLEMHKVTLHKDPMR 950
951 HDFGFSVSDGLLEKGVYVHTVRPDGPAHRGGLQPFDRVLQVNHVRTRDFD 1000
1001 CCLAVPLLAEAGDVLELIISRKPHTAHSSRAPRSPGPSSPRML 1043

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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