Retrieving SWAMP-MR results

1. Running swamp-results

A full swamp-mr run can result quite time consuming, but you don’t need to wait until the full run is finished to check out if SWAMP already found a solution. We provide a command line tool to check the results obtained by SWAMP at any moment: swamp-results. To pull the results obtained in this tutorial, simply run:

swamp-results ./SWAMP_0

You would normally need to specify the full path to the SWAMP_X directory of interest (e.g. SWAMP_0, SWAMP_1…etc.). There are more options available to control the output of the results, check them out here. After running the above command, SWAMP will retrieve the results from the directory SWAMP_0/swamp_mr and display a table with the top 50 results (sorted by shelxe CC).

2. Output table

The following example table contains depicts typical output of swamp-results. Note that the results in the table are sorted by decreasing SHXE_CC.

SEARCH_ID RUN_ID LLG TFZ PHSR_CC_LOC PHSR_CC_ALL RFMC_RFREE RFMC_RFACT RFMC_CC_LOC RFMC_CC_ALL SHXE_CC SHXE_ACL IS_EXTENDED SOLUTION
951 1 82.286 6.0 0.529 0.21 0.6018 0.5927 0.608 0.248 35.33 25.0 YES YES
277 1 41.006 8.5 0.619 0.41 0.5745 0.5355 0.65 0.434 32.63 21.0 YES YES
169 1 71.073 5.0 0.125 0.02 0.6215 0.5897 0.112 0.026 23.08 9.0 YES NO
1008 1 90.720 6.4 0.218 0.12 0.5793 0.5922 0.22 0.125 23.03 21.0 NO NO

Table fields:

  • SEARCH_ID & RUN_ID: Unique identifiers associated with a particular job. This id can be used to retrieve the metadata and temporary files generated byt each MR job: SWAMP_X/swamp_mr/<search_id>/<run_id>
  • LLG: LLG as reported by Phaser after placing the search model
  • TFZ: TFZ as reported by Phaser after placing the search model
  • PHSR_CC_LOC: Local correlation coefficient between the map and the placed model after adjusting model for origin shifts (only calculated if a MTZ file with phase information is provided for benchmarking, otherwise will be ‘NA’)
  • PHSR_CC_ALL: Overall correlation coefficient between the map and the placed model after adjusting model for origin shifts (only calculated if a MTZ file with phase information is provided for benchmarking, otherwise will be ‘NA’)
  • RFMC_RFREE: Rfree as reported by Refmac after refining the placed search model
  • RFMC_RFACTOR: Rfactor as reported by Refmac after refining the placed search model
  • RFMC_CC_LOC: Local correlation coefficient between the map and the refined model after adjusting model for origin shifts (only calculated if a MTZ file with phase information is provided for benchmarking, otherwise will be ‘NA’)
  • RFMC_CC_ALL: Overall correlation coefficient between the map and the refined model after adjusting model for origin shifts (only calculated if a MTZ file with phase information is provided for benchmarking, otherwise will be ‘NA’)
  • SHXE_CC: Correlation coefficient of the best Shelxe tracing cycle
  • SHXE_ACL: Average chain length of the best Shelxe tracing cycle
  • IS_EXTENDED: ‘YES’ if the results displayed in the row corresponds were obtained after extending a previously obtained solution with ideal helices.
  • SOLUTION: ‘YES’ if SHXE_CC > 25.0