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Next: Pretty Alignments via ALSCRIPT Up: Displaying/processing the output Previous: STAMP_CLEAN

Displaying text alignments

There are two ways to display STAMP alignments in a vertical format. The first is simply to use ACONVERT to change the STAMP block file format into another such as MSF or CLUSTAL. The format would be:

aconvert -in b -out c < <stamp alignment file>

Where `-out c' denotes CLUSTAL format (using `-out m' would give MSF format).

ACONVERT does not use any of the STAMP specific parts of the alignment (i.e reliable structural equivalences, etc.). There is a program specifically designed for displaying these data in a vertical format. VER2HOR takes a STAMP alignment file and outputs a horizonal text format. For example, to display the globin alignment, one needs to type:

ver2hor -f globin.5.clean

to give (see examples/globin/globin.5.ver2hor):

VER2HOR R.B. Russell, 1995
 Prints STAMP alignments in horizontal format
  for quick viewing
 Reading Alignment...
 Blocfile read: Length: 163
 Getting STAMP information...
 6 STAMP fields read in for 163 positions 
 Processing the alignment...
 Output:
 Very reliable => Pij' >=6 for stretches of >=3
 Less reliable => Pij' >=4.5 for stretches of >=3
 Post reliable => All Pij' > stamp_post parameter for stretches >=3

Number               10        20        30        40        50    
     1lh1            gaLTESQAALVKSSWEEfnanipKHTHRFFILVLEIAPAAKDLFSFLkg
     2lhb    pivdtgsvapLSAAEKTKIRSAWAPvystyeTSGVDILVKFFTSTPAAQEFFPKFkg
     1ecd              LSADQISTVQASFDKv    kGDPVGILYAVFKADPSIMAKFTQFag
     4mbn             vLSEGEWQLVLHVWAKveadvaGHGQDILIRLFKSHPETLEKFDRFkh
    2hhbb            vhLTPEEKSAVTALWGKvn  vdEVGGEALGRLLVVYPWTQRFFESFgd
    2hhba             vLSPADKTNVKAAWGKvgahagEYGAEALERMFLSFPTTKTYFPHF  

1lh1_dssp            ----HHHHHHHHHHHHHhhtthhHHHHHHHHHHHHH-GGGGGG-TTTtt
2lhb_dssp    ---sss------HHHHHHHHHHHHHhhhthhHHHHHHHHHHHHH-GGGGGG-GGGtt
1ecd_dssp              --HHHHHHHHHHHHTt    tT-HHHHHHHHHHH-HHHHTT-TTTtt
4mbn_dssp             --HHHHHHHHHHHHHGg--hhhHHHHHHHHHHHHHHHHHGGGG----s
2hhbb_dssp           ----HHHHHHHHHHHTT--  hhHHHHHHHHHHHHHSGGGGGG-GGG--
2hhba_dssp            ---HHHHHHHHHHHHHhggghhHHHHHHHHHHHHH-GGGGGG-TTS  

Very similar ----------1111111111111110----0111111111111111111111111--
Less similar ----------1111111111111110----0111111111111111111111111--
Post similar ----------1111111111111110----0111111111111111111111111--

				<etc.>

The sequences are displayed, as are the DSSP secondary structures and three measures of similarity (explained at the top of the output). One can suppress the displaying of secondary structures by the option `-sec false', or can display a summary of the secondary structures (an average) by typing `-secsum true'. Try these and see. The column width can be modified by using `-columns <value>'. The remaning parameters are as for DSTAMP (see next section).


next up previous contents
Next: Pretty Alignments via ALSCRIPT Up: Displaying/processing the output Previous: STAMP_CLEAN
Geoff Barton
1999-04-16