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

NucPred

Fetching Q9MYL0 from www.uniprot.org...

The NucPred score for your sequence is 0.37 (see score help below)

   1  MICQKFCVVLLHWEFICVITAFNLSYPITPWRFKLSCMPPNSTYDYFLLP    50
  51  AGLSKNTSNLNGHYETAVEFNSSDTHFSNLSKTTFHCCFRSEQDRNCSLC   100
 101  ADNIEGKTFVSTVNSSVFQQMGANWNIQCWLKGDLKLFICYVESLFKNPF   150
 151  KNYKHKVHLLYVLPEVLEDSPLVPQKGSFQMVHCNCSVHERCECLVPVPT   200
 201  AKLNDTLLMCLKITSGGVIFQSPLMSVQPINMVKPDPPLGLRMEITDDGN   250
 251  LKISWSSPPLVPFPLQYEVKYSENSTTVIREADKIVSATSLLVDGILPGS   300
 301  SYEVQVRGKRLDGPGIWSDWSTPHVFTTQDVIYFPPKILTSVGSNVSFHC   350
 351  IYKNENKIVSSKKIVWWMNLAEKIPQSQYDVVSDHVSKVTFFNLNETKPR   400
 401  GKFTYDAVYCCNEHECHHRYAELYVIDVNINISCETDGHLTKMTCRWSTN   450
 451  TIQSLAGSTLQLRYRRSSLYCFDIPSIHPISKPKDCYLQSDGFYECVFQP   500
 501  IFLLSGYTMWIRINHPLGSLDSPPTCVLPDSVVKPLPPSSVKAEIIKNIG   550
 551  LLKISWEKPVFPENNLQFQIRYGLSGKEIQWKMYDVYDAKSKSVSLPVPD   600
 601  FCAVYAVQVRCKRSDGLGLWSNWSNPAYTVVMDIKVPMRGPEFWRIINGD   650
 651  TMKKEKNVTLLWKPLMKNESLCSVQRYVINHHTSCNGTWSEDVGNHTKFT   700
 701  FLWTEQAHTVTVLAINSIGASVANFNLTFSWPMSKVNIVQSLSAYPLNSS   750
 751  CVILSWILSPSDYKLMYFIIEWKNLNEDGEIKWLRISSSVKKYYIHDHFI   800
 801  PIEKYQFSLYPIFMEGVGKPKIINSFAQDNTEKHQNDAGLYVIVPVIISS   850
 851  SILLLGTLLILHQRMKKLFWEDVPNPKNCSWAQGLNFQKPETFEHLFIKH   900
 901  TASVTCGPLLLEPETISEDISVDTSWKNKDEMVPTTVVSLLSTTDLEKGS   950
 951  VCISDQFNSVNFSEAEGTEVTCEDESQRQPFVKYATLISNSKPSETDEEQ  1000
1001  GLINSSVTKCFSSKNSPLKDSFSNSSWEIEAQAFFILSDQRPNIILPHLT  1050
1051  FSEGLDELLRLEGNFPEENNDEKSIYYLGVTSIKKRESGVLLTDKSRVLC  1100
1101  PFPAPCLFTDIRVLQDSCSHFVENNFNLGTSSKKTFASYMPQFQTCSTQT  1150
1151  HKIMENKMCDLTV                                       1163

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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