3 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
4 * Copyright (C) $$Year-Rel$$ The Jalview Authors
6 * This file is part of Jalview.
8 * Jalview is free software: you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation, either version 3
11 * of the License, or (at your option) any later version.
13 * Jalview is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
16 * PURPOSE. See the GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
20 * The Jalview Authors are detailed in the 'AUTHORS' file.
22 package jalview.ws.dbsources;
25 import java.io.FileInputStream;
26 import java.io.FileNotFoundException;
27 import java.io.IOException;
28 import java.io.InputStream;
29 import java.util.ArrayList;
30 import java.util.List;
33 import org.json.simple.JSONArray;
34 import org.json.simple.JSONObject;
35 import org.json.simple.parser.ParseException;
37 import com.stevesoft.pat.Regex;
39 import jalview.api.FeatureSettingsModelI;
40 import jalview.bin.Console;
41 import jalview.datamodel.AlignedCodonFrame;
42 import jalview.datamodel.AlignmentAnnotation;
43 import jalview.datamodel.AlignmentI;
44 import jalview.datamodel.ContactMatrixI;
45 import jalview.datamodel.DBRefEntry;
46 import jalview.datamodel.PDBEntry;
47 import jalview.datamodel.SequenceFeature;
48 import jalview.datamodel.SequenceI;
49 import jalview.gui.Desktop;
50 import jalview.io.DataSourceType;
51 import jalview.io.FileFormat;
52 import jalview.io.FileFormatI;
53 import jalview.io.FormatAdapter;
54 import jalview.io.PDBFeatureSettings;
55 import jalview.structure.StructureMapping;
56 import jalview.structure.StructureSelectionManager;
57 import jalview.util.MessageManager;
58 import jalview.util.Platform;
59 import jalview.ws.datamodel.alphafold.PAEContactMatrix;
60 import jalview.ws.utils.UrlDownloadClient;
66 public class EBIAlfaFold extends EbiFileRetrievedProxy
68 private static final String SEPARATOR = "|";
70 private static final String COLON = ":";
72 private static final int PDB_ID_LENGTH = 4;
74 private static String AF_VERSION = "3";
84 * @see jalview.ws.DbSourceProxy#getAccessionSeparator()
87 public String getAccessionSeparator()
95 * @see jalview.ws.DbSourceProxy#getAccessionValidator()
98 public Regex getAccessionValidator()
100 Regex validator = new Regex("(AF-[A-Z]+[0-9]+[A-Z0-9]+-F1)");
101 validator.setIgnoreCase(true);
108 * @see jalview.ws.DbSourceProxy#getDbSource()
111 public String getDbSource()
119 * @see jalview.ws.DbSourceProxy#getDbVersion()
122 public String getDbVersion()
127 public static String getAlphaFoldCifDownloadUrl(String id, String vnum)
129 if (vnum == null || vnum.length() == 0)
133 return "https://alphafold.ebi.ac.uk/files/" + id + "-model_v" + vnum
137 public static String getAlphaFoldPaeDownloadUrl(String id, String vnum)
139 if (vnum == null || vnum.length() == 0)
143 return "https://alphafold.ebi.ac.uk/files/" + id
144 + "-predicted_aligned_error_v" + vnum + ".json";
150 * @see jalview.ws.DbSourceProxy#getSequenceRecords(java.lang.String[])
153 public AlignmentI getSequenceRecords(String queries) throws Exception
155 return getSequenceRecords(queries, null);
158 public AlignmentI getSequenceRecords(String queries, String retrievalUrl)
161 AlignmentI pdbAlignment = null;
164 if (queries.indexOf(COLON) > -1)
166 chain = queries.substring(queries.indexOf(COLON) + 1);
167 id = queries.substring(0, queries.indexOf(COLON));
174 if (!isValidReference(id))
177 "(AFClient) Ignoring invalid alphafold query: '" + id + "'");
181 String alphaFoldCif = getAlphaFoldCifDownloadUrl(id, AF_VERSION);
182 if (retrievalUrl != null)
184 alphaFoldCif = retrievalUrl;
189 File tmpFile = File.createTempFile(id, ".cif");
190 Console.debug("Retrieving structure file for " + id + " from "
192 UrlDownloadClient.download(alphaFoldCif, tmpFile);
194 // may not need this check ?
195 file = tmpFile.getAbsolutePath();
201 pdbAlignment = importDownloadedStructureFromUrl(alphaFoldCif, tmpFile,
202 id, chain, getDbSource(), getDbVersion());
204 if (pdbAlignment == null || pdbAlignment.getHeight() < 1)
206 throw new Exception(MessageManager.formatMessage(
207 "exception.no_pdb_records_for_chain", new String[]
208 { id, ((chain == null) ? "' '" : chain) }));
210 // done during structure retrieval
211 // retrieve_AlphaFold_pAE(id, pdbAlignment, retrievalUrl);
213 } catch (Exception ex) // Problem parsing PDB file
222 * get an alphafold pAE for the given id, and add it to sequence 0 in
223 * pdbAlignment (assuming it came from structurefile parser).
226 * @param pdbAlignment
227 * @param retrievalUrl
228 * - URL of .mmcif from EBI-AlphaFold - will be used to generate the
229 * pAE URL automatically
230 * @throws IOException
233 public static void retrieve_AlphaFold_pAE(String id,
234 AlignmentI pdbAlignment, String retrievalUrl) throws IOException
236 // import PAE as contact matrix - assume this will work if there was a
238 String paeURL = getAlphaFoldPaeDownloadUrl(id, AF_VERSION);
240 if (retrievalUrl != null)
242 // manufacture the PAE url from a url like ...-model-vN.cif
243 paeURL = retrievalUrl.replace("model", "predicted_aligned_error")
244 .replace(".cif", ".json");
250 pae = File.createTempFile(id == null ? "af_pae" : id, "pae_json");
251 } catch (IOException e)
255 Console.debug("Downloading pae from " + paeURL + " to " + pae.toString()
257 UrlDownloadClient.download(paeURL, pae);
258 addAlphaFoldPAEToSequence(pdbAlignment, pae, 0, null);
261 public static void addAlphaFoldPAEToSequence(AlignmentI pdbAlignment,
262 File pae, int index, String seqId)
264 addAlphaFoldPAE(pdbAlignment, pae, index, seqId, false, false);
267 public static void addAlphaFoldPAEToStructure(AlignmentI pdbAlignment,
268 File pae, int index, String structIdOrFile, boolean isStructId)
270 addAlphaFoldPAE(pdbAlignment, pae, index, structIdOrFile, true,
274 public static void addAlphaFoldPAE(AlignmentI pdbAlignment, File pae,
275 int index, String id, boolean isStruct, boolean isStructId)
277 FileInputStream paeInput = null;
280 paeInput = new FileInputStream(pae);
281 } catch (FileNotFoundException e)
284 "Could not find pAE file '" + pae.getAbsolutePath() + "'", e);
290 StructureSelectionManager ssm = StructureSelectionManager
291 .getStructureSelectionManager(Desktop.instance);
294 String structFile = isStructId ? ssm.findFileForPDBId(id) : id;
295 Console.debug("##### AHA! structFile = " + structFile);
296 Console.debug("##### structFile "
297 + (ssm.isPDBFileRegistered(structFile) ? "IS " : "is NOT ")
300 StructureMapping[] smArray = ssm.getMapping(structFile);
301 Console.debug("##### AHA! smArray obtained with " + smArray.length
306 if (!importPaeJSONAsContactMatrixToStructure(smArray, paeInput))
308 Console.warn("Could not import contact matrix from '"
309 + pae.getAbsolutePath() + "' to structure.");
311 } catch (IOException e1)
313 Console.error("Error when importing pAE file '"
314 + pae.getAbsolutePath() + "'", e1);
315 } catch (ParseException e2)
317 Console.error("Error when parsing pAE file '"
318 + pae.getAbsolutePath() + "'", e2);
325 // attach to sequence?!
328 if (!importPaeJSONAsContactMatrixToSequence(pdbAlignment, paeInput,
331 Console.warn("Could not import contact matrix from '"
332 + pae.getAbsolutePath() + "' to sequence.");
334 } catch (IOException e1)
336 Console.error("Error when importing pAE file '"
337 + pae.getAbsolutePath() + "'", e1);
338 } catch (ParseException e2)
340 Console.error("Error when parsing pAE file '"
341 + pae.getAbsolutePath() + "'", e2);
348 * parses the given pAE matrix and adds it to sequence 0 in the given
351 * @param pdbAlignment
353 * @return true if there was a pAE matrix added
354 * @throws ParseException
355 * @throws IOException
358 public static boolean importPaeJSONAsContactMatrixToSequence(
359 AlignmentI pdbAlignment, InputStream pae_input)
360 throws IOException, ParseException
362 return importPaeJSONAsContactMatrixToSequence(pdbAlignment, pae_input,
366 public static boolean importPaeJSONAsContactMatrixToSequence(
367 AlignmentI pdbAlignment, InputStream pae_input, int index,
368 String seqId) throws IOException, ParseException
370 SequenceI sequence = null;
372 SequenceI[] seqs = pdbAlignment.getSequencesArray();
374 Console.debug("******* sequences is null");
377 for (int i = 0; i < seqs.length; i++)
379 SequenceI s = seqs[i];
385 int seqToGet = index > 0 ? index : 0;
386 sequence = pdbAlignment.getSequenceAt(seqToGet);
387 Console.debug("***** Got sequence at index " + seqToGet + ": "
388 + (sequence == null ? null : sequence.getName()));
390 if (sequence == null)
392 SequenceI[] sequences = pdbAlignment.findSequenceMatch(seqId);
393 if (sequences == null || sequences.length < 1)
395 Console.warn("Could not find sequence with id '" + seqId
396 + "' to attach pAE matrix to. Ignoring matrix.");
401 sequence = sequences[0]; // just use the first sequence with this seqId
405 Object paeJson = Platform.parseJSON(pae_input);
406 JSONObject paeDict = null;
407 if (paeJson instanceof JSONObject)
409 Console.debug("***** paeJson is a JSONObject");
410 paeDict = (JSONObject) paeJson;
412 else if (paeJson instanceof JSONArray)
414 JSONArray jsonArray = (JSONArray) paeJson;
415 if (jsonArray.size() > 0)
416 paeDict = (JSONObject) jsonArray.get(0);
421 Console.debug("JSON file did not parse properly.");
424 ContactMatrixI matrix = new PAEContactMatrix(sequence,
425 (Map<String, Object>) paeDict);
427 AlignmentAnnotation cmannot = sequence.addContactList(matrix);
428 pdbAlignment.addAnnotation(cmannot);
433 public static boolean importPaeJSONAsContactMatrixToStructure(
434 StructureMapping[] smArray, InputStream paeInput)
435 throws IOException, ParseException
437 boolean someDone = false;
438 Console.debug("##### smArray.length=" + smArray.length);
439 for (StructureMapping sm : smArray)
441 Console.debug("##### sm[n]=" + sm.getPdbId());
442 boolean thisDone = importPaeJSONAsContactMatrixToStructure(sm,
444 Console.debug("##### thisDone = " + thisDone);
445 someDone |= thisDone;
450 public static boolean importPaeJSONAsContactMatrixToStructure(
451 StructureMapping sm, InputStream paeInput)
452 throws IOException, ParseException
455 List<Object> pae_obj = (List<Object>) Platform.parseJSON(paeInput);
458 Console.debug("JSON file did not parse properly.");
462 ContactMatrixI matrix = new PAEContactMatrix(sm.getSequence(),
463 (Map<String, Object>) pae_obj.get(0));
465 AlignmentAnnotation cmannot = sm.getSequence().addContactList(matrix);
466 // sm.getSequence().addAlignmentAnnotation(cmannot);
467 sm.transfer(cmannot);
470 StructureSelectionManager ssm = StructureSelectionManager
471 .getStructureSelectionManager(Desktop.instance);
472 List<AlignedCodonFrame> acfList = ssm.getSequenceMappings();
478 * general purpose structure importer - designed to yield alignment useful for
479 * transfer of annotation to associated sequences
481 * @param alphaFoldCif
490 public static AlignmentI importDownloadedStructureFromUrl(
491 String alphaFoldCif, File tmpFile, String id, String chain,
492 String dbSource, String dbVersion) throws Exception
494 String file = tmpFile.getAbsolutePath();
495 // todo get rid of Type and use FileFormatI instead?
496 FileFormatI fileFormat = FileFormat.MMCif;
497 AlignmentI pdbAlignment = new FormatAdapter().readFile(tmpFile,
498 DataSourceType.FILE, fileFormat);
499 if (pdbAlignment != null)
501 List<SequenceI> toremove = new ArrayList<SequenceI>();
502 for (SequenceI pdbcs : pdbAlignment.getSequences())
506 for (PDBEntry pid : pdbcs.getAllPDBEntries())
508 if (pid.getFile() == file)
510 chid = pid.getChainCode();
514 if (chain == null || (chid != null && (chid.equals(chain)
515 || chid.trim().equals(chain.trim())
516 || (chain.trim().length() == 0 && chid.equals("_")))))
518 // FIXME seems to result in 'PDB|1QIP|1qip|A' - 1QIP is redundant.
519 // TODO: suggest simplify naming to 1qip|A as default name defined
520 pdbcs.setName(id + SEPARATOR + pdbcs.getName());
521 // Might need to add more metadata to the PDBEntry object
524 * PDBEntry entry = new PDBEntry(); // Construct the PDBEntry
525 * entry.setId(id); if (entry.getProperty() == null)
526 * entry.setProperty(new Hashtable());
527 * entry.getProperty().put("chains", pdbchain.id + "=" +
528 * sq.getStart() + "-" + sq.getEnd());
529 * sq.getDatasetSequence().addPDBId(entry);
532 // We make a DBRefEtntry because we have obtained the PDB file from
535 // JBPNote - PDB DBRefEntry should also carry the chain and mapping
537 if (dbSource != null)
539 DBRefEntry dbentry = new DBRefEntry(dbSource,
541 dbVersion, (chid == null ? id : id + chid));
543 pdbcs.addDBRef(dbentry);
544 // update any feature groups
545 List<SequenceFeature> allsf = pdbcs.getFeatures()
547 List<SequenceFeature> newsf = new ArrayList<SequenceFeature>();
548 if (allsf != null && allsf.size() > 0)
550 for (SequenceFeature f : allsf)
552 if (file.equals(f.getFeatureGroup()))
554 f = new SequenceFeature(f, f.type, f.begin, f.end, id,
559 pdbcs.setSequenceFeatures(newsf);
565 // mark this sequence to be removed from the alignment
566 // - since it's not from the right chain
570 // now remove marked sequences
571 for (SequenceI pdbcs : toremove)
573 pdbAlignment.deleteSequence(pdbcs);
574 if (pdbcs.getAnnotation() != null)
576 for (AlignmentAnnotation aa : pdbcs.getAnnotation())
578 pdbAlignment.deleteAnnotation(aa);
589 * @see jalview.ws.DbSourceProxy#isValidReference(java.lang.String)
592 public boolean isValidReference(String accession)
594 Regex r = getAccessionValidator();
595 return r.search(accession.trim());
602 public String getTestQuery()
604 return "AF-O15552-F1";
608 public String getDbName()
610 return "ALPHAFOLD"; // getDbSource();
620 * Returns a descriptor for suitable feature display settings with
622 * <li>ResNums or insertions features visible</li>
623 * <li>insertions features coloured red</li>
624 * <li>ResNum features coloured by label</li>
625 * <li>Insertions displayed above (on top of) ResNums</li>
629 public FeatureSettingsModelI getFeatureColourScheme()
631 return new PDBFeatureSettings();