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

NucPred

Fetching Q5HZG4 from www.uniprot.org...

The NucPred score for your sequence is 0.95 (see score help below)

   1  MCESYSRSLLRVSVAQICQALGWDSVQLSACHLLTDVLQRYLQQLGRGCH    50
  51  RYSELYGRTDPILDDVGEAFQLMGVNLHELEDYIHNIEPVTFPHQIPSFP   100
 101  VSKNNVLQFPQPGSKDAEERKDYIPDYLPPIVSSQEEEEEEQVPTDGGTS   150
 151  AEAMQVPLEEDDEMEEEEVINDENFLGKRPLDSPEVEEMPSMKRPRLLST   200
 201  KGDSLDVVLLEAREPLSSINPQKTPPVLSPVRVQDRADLAPPSPQPPMLA   250
 251  PFAKSQLPIAKPLETKSFTPKTKTKASSPGQKTKSPKAALSPARLGSPIR   300
 301  SPKTIPKEKKSPGRSKSPKSPKSPKIVAHVPQTPVRPETPNRTPSAMVVE   350
 351  KTVKETIPVMKPTQTPPEVVKLNIEMQPKKPVVTDKTIDDSIDAVIARAC   400
 401  AEREPDPFEFSSGSESEGDTFTSPKRISGSECATPKASTSSNNFTKSLAT   450
 451  PLPLSSGTSSSDNSWTMDASIDEVVRKAKLGAPSNMPPTFPYISSPSISP   500
 501  PTPEPLHKGYEEKAKLPSSVDVKKKLKKELKTKLKKKEKQRDRERERERN   550
 551  KERSKEKDKMREREKEKEAGKELKYPWRELMKDEDSDPYKFKIKEFEDID   600
 601  AAKVRLKDGIVRREREKHKDKKKDRERSKREKDKRERERLKEKNREDKIK   650
 651  APPTQLVLPPKEMALPLFSPSAVRVPAMLPAFSPMLPEKLFEEKEKPKEK   700
 701  ERKKDKKEKKKKKEKEKEKEKKEREREKERREREKREKEKEKHKHEKIKV   750
 751  EPVIPAPSPVIPRLTLRVGAGQDKIVISKVVPAPEAKPAPSLNRPKTPPP   800
 801  APVPIPVRVSPTPLQPPLLTQAAVCPALMPSPAPALSGIGSAKAPVRSVV   850
 851  TETVSTYVIRDEWGNQIWICPGCNKPDDGSPMIGCDDCDDWYHWPCVGIM   900
 901  AAPPEEMQWFCPKCANKIKKDKKHKKRKHRAH                     932

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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