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

NucPred

Fetching Q8IUD2 from www.uniprot.org...

The NucPred score for your sequence is 0.93 (see score help below)

   1  MYGSARSVGKVEPSSQSPGRSPRLPRSPRLGHRRTNSTGGSSGSSVGGGS    50
  51  GKTLSMENIQSLNAAYATSGPMYLSDHENVGSETPKSTMTLGRSGGRLPY   100
 101  GVRMTAMGSSPNIASSGVASDTIAFGEHHLPPVSMASTVPHSLRQARDNT   150
 151  IMDLQTQLKEVLRENDLLRKDVEVKESKLSSSMNSIKTFWSPELKKERAL   200
 201  RKDEASKITIWKEQYRVVQEENQHMQMTIQALQDELRIQRDLNQLFQQDS   250
 251  SSRTGEPCVAELTEENFQRLHAEHERQAKELFLLRKTLEEMELRIETQKQ   300
 301  TLNARDESIKKLLEMLQSKGLSAKATEEDHERTRRLAEAEMHVHHLESLL   350
 351  EQKEKENSMLREEMHRRFENAPDSAKTKALQTVIEMKDSKISSMERGLRD   400
 401  LEEEIQMLKSNGALSTEEREEEMKQMEVYRSHSKFMKNKVEQLKEELSSK   450
 451  EAQWEELKKKAAGLQAEIGQVKQELSRKDTELLALQTKLETLTNQFSDSK   500
 501  QHIEVLKESLTAKEQRAAILQTEVDALRLRLEEKETMLNKKTKQIQDMAE   550
 551  EKGTQAGEIHDLKDMLDVKERKVNVLQKKIENLQEQLRDKEKQMSSLKER   600
 601  VKSLQADTTNTDTALTTLEEALAEKERTIERLKEQRDRDEREKQEEIDNY   650
 651  KKDLKDLKEKVSLLQGDLSEKEASLLDLKEHASSLASSGLKKDSRLKTLE   700
 701  IALEQKKEECLKMESQLKKAHEAALEARASPEMSDRIQHLEREITRYKDE   750
 751  SSKAQAEVDRLLEILKEVENEKNDKDKKIAELERQVKDQNKKVANLKHKE   800
 801  QVEKKKSAQMLEEARRREDNLNDSSQQLQDSLRKKDDRIEELEEALRESV   850
 851  QITAEREMVLAQEESARTNAEKQVEELLMAMEKVKQELESMKAKLSSTQQ   900
 901  SLAEKETHLTNLRAERRKHLEEVLEMKQEALLAAISEKDANIALLELSSS   950
 951  KKKTQEEVAALKREKDRLVQQLKQQTQNRMKLMADNYEDDHFKSSHSNQT  1000
1001  NHKPSPDQIIQPLLELDQNRSKLKLYIGHLTTLCHDRDPLILRGLTPPAS  1050
1051  YNLDDDQAAWENELQKMTRGQLQDELEKGERDNAELQEFANAILQQIADH  1100
1101  CPDILEQVVNALEESS                                    1116

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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