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

NucPred

Fetching Q9ZVR7 from www.uniprot.org...

The NucPred score for your sequence is 0.62 (see score help below)

   1  MRVHRFCVIVIFLTELLCFFYSSESQTTSRCHPHDLEALRDFIAHLEPKP    50
  51  DGWINSSSSTDCCNWTGITCNSNNTGRVIRLELGNKKLSGKLSESLGKLD   100
 101  EIRVLNLSRNFIKDSIPLSIFNLKNLQTLDLSSNDLSGGIPTSINLPALQ   150
 151  SFDLSSNKFNGSLPSHICHNSTQIRVVKLAVNYFAGNFTSGFGKCVLLEH   200
 201  LCLGMNDLTGNIPEDLFHLKRLNLLGIQENRLSGSLSREIRNLSSLVRLD   250
 251  VSWNLFSGEIPDVFDELPQLKFFLGQTNGFIGGIPKSLANSPSLNLLNLR   300
 301  NNSLSGRLMLNCTAMIALNSLDLGTNRFNGRLPENLPDCKRLKNVNLARN   350
 351  TFHGQVPESFKNFESLSYFSLSNSSLANISSALGILQHCKNLTTLVLTLN   400
 401  FHGEALPDDSSLHFEKLKVLVVANCRLTGSMPRWLSSSNELQLLDLSWNR   450
 451  LTGAIPSWIGDFKALFYLDLSNNSFTGEIPKSLTKLESLTSRNISVNEPS   500
 501  PDFPFFMKRNESARALQYNQIFGFPPTIELGHNNLSGPIWEEFGNLKKLH   550
 551  VFDLKWNALSGSIPSSLSGMTSLEALDLSNNRLSGSIPVSLQQLSFLSKF   600
 601  SVAYNNLSGVIPSGGQFQTFPNSSFESNHLCGEHRFPCSEGTESALIKRS   650
 651  RRSRGGDIGMAIGIAFGSVFLLTLLSLIVLRARRRSGEVDPEIEESESMN   700
 701  RKELGEIGSKLVVLFQSNDKELSYDDLLDSTNSFDQANIIGCGGFGMVYK   750
 751  ATLPDGKKVAIKKLSGDCGQIEREFEAEVETLSRAQHPNLVLLRGFCFYK   800
 801  NDRLLIYSYMENGSLDYWLHERNDGPALLKWKTRLRIAQGAAKGLLYLHE   850
 851  GCDPHILHRDIKSSNILLDENFNSHLADFGLARLMSPYETHVSTDLVGTL   900
 901  GYIPPEYGQASVATYKGDVYSFGVVLLELLTDKRPVDMCKPKGCRDLISW   950
 951  VVKMKHESRASEVFDPLIYSKENDKEMFRVLEIACLCLSENPKQRPTTQQ  1000
1001  LVSWLDDV                                            1008

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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