Sequence-based predictions (PKU)

Short Task Description

Do sequence-based predictions I guess..

Secondary Structure Prediction

Test some SS-predictors ans compare the results to the 'gold standard' of dssp

ReProfSeq

reprof -i <uniprotID>.fasta
egrep -v "^#|^No" <uniprotID>.reprof |awk '{print $3}'|tr -d '\n' > <uniprotID>_reprof.secstruc

PsiPred

Webserver here

grep Pred: <uniprotID>.psipred_out |cut -d " " -f2|tr -d '\n' > <uniprotID>_psipred.secstruc

DSSP

Download dssp here and get PDB files matching the Uniprot entries

dssp -i <PDBID>.pdb > <PDBID>.dssp
tail -n+29 <PDBID>.dssp |cut -c17|tr ' ' '-'|tr -d '\n' > <PDBID>_dssp.secstruc

PDB-Files contains only part of the structure or more than 1 chain! e.g. 117aa-424aa for PAH.

Aligned structure to sequence manually..

Script to calculate Q3 and SOV: ss_score.py

GO Terms

GOPet

GOPet predicted GO terms
GO ID	Aspect	Confidence	GO Term	True/False
GO:0003824	F	94%	catalytic activity	true
GO:0016491	F	88%	oxidoreductase activity	true
GO:0004497	F	87%	monooxygenase activity	true
GO:0004505	F	84%	phenylalanine 4-monooxygenase activity	true
GO:0004510	F	80%	tryptophan 5-monooxygenase activity	false
GO:0004511	F	79%	tyrosine 3-monooxygenase activity	false
GO:0046872	F	78%	metal ion binding	true
GO:0005506	F	78%	iron ion binding	true
GO:0008199	F	72%	ferric iron binding	false
GO:0008198	F	72%	ferrous iron binding	false
GO:0016597	F	71%	amino acid binding	true

ProtFun

# Functional category                  Prob     Odds
 Amino_acid_biosynthesis           => 0.210    9.530
 Biosynthesis_of_cofactors            0.229    3.180
 Cell_envelope                        0.034    0.563
 Cellular_processes                   0.063    0.867
 Central_intermediary_metabolism      0.061    0.970
 Energy_metabolism                    0.343    3.815
 Fatty_acid_metabolism                0.025    1.889
 Purines_and_pyrimidines              0.392    1.615
 Regulatory_functions                 0.020    0.125
 Replication_and_transcription        0.118    0.438
 Translation                          0.204    4.630
 Transport_and_binding                0.024    0.060

# Enzyme/nonenzyme                     Prob     Odds
 Enzyme                            => 0.724    2.527
 Nonenzyme                            0.276    0.387

# Enzyme class                         Prob     Odds
 Oxidoreductase (EC 1.-.-.-)          0.154    0.738
 Transferase    (EC 2.-.-.-)          0.271    0.785
 Hydrolase      (EC 3.-.-.-)          0.083    0.261
 Lyase          (EC 4.-.-.-)          0.047    1.002
 Isomerase      (EC 5.-.-.-)       => 0.100    3.138
 Ligase         (EC 6.-.-.-)          0.019    0.370

# Gene Ontology category               Prob     Odds
 Signal_transducer                    0.075    0.350
 Receptor                             0.003    0.016
 Hormone                              0.001    0.206
 Structural_protein                   0.005    0.166
 Transporter                          0.025    0.229
 Ion_channel                          0.010    0.168
 Voltage-gated_ion_channel            0.005    0.232
 Cation_channel                       0.010    0.215
 Transcription                        0.043    0.334
 Transcription_regulation             0.032    0.255
 Stress_response                      0.010    0.118
 Immune_response                      0.012    0.140
 Growth_factor                        0.006    0.407
 Metal_ion_transport                  0.009    0.020