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

NucPred

Fetching Q6AZT7 from www.uniprot.org...

The NucPred score for your sequence is 0.83 (see score help below)

   1  MGTASSLVNAGEVIEDTYGGGGGEDCVIPVEVKPKARLLRSSFRRGPRVI    50
  51  GASFKSTASVDLEYAAEYERLKKEYEIFRVSKNNEVASMQKKEIKLDEEN   100
 101  KRLRAELQALQKTYQKILREKESAVEAKYQAMERAATFEHDRDKVKRQFK   150
 151  IFRETKEKEIQDLLRAKRDLEAKLQRLQAQGIQVFDPGESDSDDNGTEVT   200
 201  VPSTQCEYWTSGALGSDPSMGSMMQLQQSFRGPEFAHSSIDVEGPFANVN   250
 251  RDDWDAAVASLLQVTPLFSQSLWSNTVRCYLMSTAETQAEVEIFLRDYSP   300
 301  KLQRMCETSGYFFQMVFFPEECESQHFAVRKWEIEKSSIVILFICSSLPS   350
 351  CLQEDCEEAFLKNNEAKPRLIYHSIEDGRSDSDGLKQLLEQDTNKANKTK   400
 401  VVDHCGDPVEGAYKLYCHLEQVIKQDLLGIEISDPDAKDESATMEDDDYG   450
 451  DVLWDVHDEQEQMEAYQQASQSICELGFQKYYDRLNDLVAAPAPIPPLLI   500
 501  SGGPGSGKSLLLSKWIQLQQKHSPNTLMLYHFVGRPLSSSSEPSLIIKRL   550
 551  TLKLMQHSWSVSSLSMDPGKFLEEFPHWLEKLSIRYQGNIIIIIDSIDHI   600
 601  QQSEKHMKWLIDPLPVNVRVIVSVNVETCPQAWRLWPTLHLDPLNSKDVK   650
 651  ALINMECGGANILLTKEQERKLERHCRSATTCNALYVTLITKLLTWAGST   700
 701  GKIEDVLQQCLQCQDTVSLYRLVLRSVQEVMPSAKEKEFMREILCFISVS   750
 751  HNGVSECELMELCPGLTWEVLTSLIYHLYTLVLLKYTCGLLQFQHLQAWD   800
 801  AVNLEYMQGGQNIISEYREKIIKHFTTQLSHDRVTWRSADELTWLFQQQG   850
 851  EKQKLHKCLMNLFVSQNLYKRGHFAELLSYWQLVGKDKISMASEYFDALK   900
 901  QYEKNCEGEEKMTSLADLYETLGRFLKDLGLLSQAVTPLQRSLEIRETAL   950
 951  DPDHPSVAQSLHQLAGVYMQSKKFGNAEQLYKQALEISENAYGSEHLRVA  1000
1001  RELDALAVLYQKQNKFEQAEQLRKKSLKIRQKSARRKGSMYGFALLRRRA  1050
1051  LQLEELTLGKDTSDNARTLNELGVLYYLQNNLETAETFLKRSLEMRERVL  1100
1101  GADHPDCAQSINNLAALYNEKKQYDKAEELYERALDIRRRALSPDHPSLA  1150
1151  YTVKHLAVLYKRKGKLDKAVPLYELAVDIRQKSFGPKHPSVATALVNLAV  1200
1201  LYCQMKKQDDALPLYERAMKIYEDSLGRMHPRVGETLKNLAVLRYEEGDY  1250
1251  EKAAELYKRAMEIKETETSVLGAKAPSGHSSSGGDTYSVQNTLPVSVFPE  1300

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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