add find-population-molecular-consequence API

FHIRGenomicsOperations.postman_collection.json

@@ -16,7 +16,7 @@
 						"method": "GET",
 						"header": [],
 						"url": {
-							"raw": "https://fhir-gen-ops.herokuapp.com/subject-operations/genotype-operations/$find-subject-variants?subject=NB6TK329&ranges=NC_000002.12:178525988-178807423&includeVariants=true&includePhasing=true",
+							"raw": "https://fhir-gen-ops.herokuapp.com/subject-operations/genotype-operations/$find-subject-variants?subject=NB6TK329&testIdentifiers=TL000016660-ASM&includeVariants=true&ranges=NC_000002.12:178525988-178807423,NC_000002.12:178525988-178807423",
 							"protocol": "https",
 							"host": [
 								"fhir-gen-ops",
@@ -33,14 +33,9 @@
 									"key": "subject",
 									"value": "NB6TK329"
 								},
-								{
-									"key": "ranges",
-									"value": "NC_000002.12:178525988-178807423"
-								},
 								{
 									"key": "testIdentifiers",
-									"value": "TL000016660-ASM",
-									"disabled": true
+									"value": "TL000016660-ASM"
 								},
 								{
 									"key": "specimenIdentifiers",
@@ -68,7 +63,12 @@
 								},
 								{
 									"key": "includePhasing",
-									"value": "true"
+									"value": "true",
+									"disabled": true
+								},
+								{
+									"key": "ranges",
+									"value": "NC_000002.12:178525988-178807423,NC_000002.12:178525988-178807423"
 								}
 							]
 						}
@@ -1763,7 +1763,7 @@
 						"method": "GET",
 						"header": [],
 						"url": {
-							"raw": "https://fhir-gen-ops.herokuapp.com/subject-operations/phenotype-operations/$find-subject-molecular-consequences?subject=HG00403&ranges=NC_000001.10:86852500-86852800&featureConsequences=http://sequenceontology.org|SO:0001575",
+							"raw": "https://fhir-gen-ops.herokuapp.com/subject-operations/phenotype-operations/$find-subject-molecular-consequences?subject=NB6TK329&variants=NC_000006.12:7576293:G:A",
 							"protocol": "https",
 							"host": [
 								"fhir-gen-ops",
@@ -1778,20 +1778,21 @@
 							"query": [
 								{
 									"key": "subject",
-									"value": "HG00403"
+									"value": "NB6TK329"
 								},
 								{
 									"key": "variants",
-									"value": "NM_031475.3:c.2217C>T",
-									"disabled": true
+									"value": "NC_000006.12:7576293:G:A"
 								},
 								{
 									"key": "ranges",
-									"value": "NC_000001.10:86852500-86852800"
+									"value": "NC_000001.10:86852500-86852800",
+									"disabled": true
 								},
 								{
 									"key": "featureConsequences",
-									"value": "http://sequenceontology.org|SO:0001575"
+									"value": "http://sequenceontology.org|SO:0001575",
+									"disabled": true
 								},
 								{
 									"key": "variants",
@@ -2735,7 +2736,7 @@
 						"method": "GET",
 						"header": [],
 						"url": {
-							"raw": "https://fhir-gen-ops.herokuapp.com/population-operations/phenotype-operations/$find-population-dx-implications?conditions=https://www.ncbi.nlm.nih.gov/medgen|C1708353",
+							"raw": "https://fhir-gen-ops.herokuapp.com/population-operations/phenotype-operations/$find-population-dx-implications?variants=NC_000019.10:38499669:C:T&includePatientList=true",
 							"protocol": "https",
 							"host": [
 								"fhir-gen-ops",
@@ -2749,12 +2750,16 @@
 							],
 							"query": [
 								{
-									"key": "conditions",
-									"value": "https://www.ncbi.nlm.nih.gov/medgen|C1708353"
+									"key": "variants",
+									"value": "NC_000019.10:38499669:C:T"
 								},
 								{
-									"key": "variants",
-									"value": "NC_000019.10:38499669:C:T",
+									"key": "includePatientList",
+									"value": "true"
+								},
+								{
+									"key": "conditions",
+									"value": "https://www.ncbi.nlm.nih.gov/medgen|C1708353",
 									"disabled": true
 								}
 							]
@@ -2828,6 +2833,47 @@
 				}
 			]
 		},
+		{
+			"name": "find-population-molecular-consequences",
+			"item": [
+				{
+					"name": "find-population-molecular-consequences",
+					"request": {
+						"method": "GET",
+						"header": [],
+						"url": {
+							"raw": "https://fhir-gen-ops.herokuapp.com/population-operations/phenotype-operations/$find-population-molecular-consequences?variants=NC_000001.10:152785039:G:T&featureConsequences=http://sequenceontology.org|SO:0001583&includePatientList=true",
+							"protocol": "https",
+							"host": [
+								"fhir-gen-ops",
+								"herokuapp",
+								"com"
+							],
+							"path": [
+								"population-operations",
+								"phenotype-operations",
+								"$find-population-molecular-consequences"
+							],
+							"query": [
+								{
+									"key": "variants",
+									"value": "NC_000001.10:152785039:G:T"
+								},
+								{
+									"key": "featureConsequences",
+									"value": "http://sequenceontology.org|SO:0001583"
+								},
+								{
+									"key": "includePatientList",
+									"value": "true"
+								}
+							]
+						}
+					},
+					"response": []
+				}
+			]
+		},
 		{
 			"name": "find-study-metadata",
 			"item": [

app/api_spec.yml

@@ -752,6 +752,8 @@ paths:
             type: array
             items:
               type: string
+            example:
+              - "http://sequenceontology.org|SO:0001629"
           style: "form"
           explode: false
         - name: testIdentifiers
@@ -1181,6 +1183,61 @@ paths:
             default: false
           description: Include list of matching patients if set to true.
 
+  /population-operations/phenotype-operations/$find-population-molecular-consequences:
+    get:
+      description: |-
+        Retrieve count or list of patients having molecular consequences. More specifically, this operation retrieves the count +/- list of patients that have molecular consequences involving specific featureConsequences, derived from specific variants.
+
+        A patient meets numerator criteria if they have at least one molecular consequence matching the query parameters.
+      summary: "Find Population Molecular Consequences"
+      operationId: "app.endpoints.find_population_molecular_consequences"
+      tags:
+        - "Population Phenotype Operations"
+      responses:
+        '200':
+          description: "Returns a FHIR Parameters resource containing a count +/- list of patients having at least one matching molecular consequence."
+          content:
+            application/json:
+              schema:
+                type: object
+      parameters:
+        - name: variants
+          in: query
+          description: List of variants from which consequences are derived. Must be in HGVS or SPDI format.
+          schema:
+            type: array
+            items:
+              type: string
+            example:
+              - "NC_000001.10:152785039:G:T"
+          style: "form"
+          explode: false
+        - name: featureConsequences
+          in: query
+          description: List of consequences sought. Must be in token or codesystem|code format.
+          schema:
+            type: array
+            items:
+              type: string
+            example:
+              - "http://sequenceontology.org|SO:0001583"
+          style: "form"
+          explode: false
+        - name: genomicSourceClass
+          in: query
+          schema:
+            type: string
+            enum:
+              - "germline"
+              - "somatic"
+          description: Enables an App to limit results to those that are 'germline' or 'somatic'. Default is to include variants irrespective of genomic source class.
+        - name: includePatientList
+          in: query
+          schema:
+            type: boolean
+            default: false
+          description: Include list of matching patients if set to true.
+
   /utilities/get-feature-coordinates:
     get:
       description: 'This utility returns genomic feature coordinates and other annotations. All data are from <a href="https://www.ncbi.nlm.nih.gov/genome/guide/human/">NCBI Human Genome Resources</a>. For chromosomes, build 37 and build 38 reference sequences are returned. For genes, genomic coordinates are returned, along with a list of transcripts. MANE transcript is flagged. For transcripts, genomic coordinates are returned, along with the gene name and composite exons, along with exon coordinates. For proteins, the corresponding transcript is returned.'

app/common.py

@@ -1859,7 +1859,7 @@ def query_transcript(transcript):
     return results
 
 
-def query_molecular_consequences_by_variants(normalized_variant_list, feature_consequence_list, query):
+def query_molecular_consequences_by_variants(normalized_variant_list, feature_consequence_list, query, population=False):
     variant_list = []
     for item in normalized_variant_list:
         if "GRCh37" in item:
@@ -1883,12 +1883,17 @@ def query_molecular_consequences_by_variants(normalized_variant_list, feature_co
                 ]})
         pipeline_part[-1]['$match']['$or'] = or_query
 
-    query['SPDI'] = {'$in': variant_list}
+    if normalized_variant_list != []:
+        query['SPDI'] = {'$in': variant_list}
 
     query_string = [{'$match': query},
                     {'$lookup': {'from': 'MolecConseq', 'let': {'myvariant_id': '$_id'}, 'pipeline': pipeline_part,
                                  'as': 'molecularConsequenceMatches'}},
                     {'$match': {'molecularConsequenceMatches': {'$exists': True, '$not': {'$size': 0}}}}]
+
+    if population:
+        query_string.append({'$group': {'_id': '$patientID'}})
+
     try:
         results = variants_db.aggregate(query_string)
         results = list(results)

app/endpoints.py

@@ -2322,3 +2322,75 @@ def find_population_dx_implications(
             result.pop("parameter")
 
         return jsonify(result)
+
+
+def find_population_molecular_consequences(
+        variants=None, featureConsequences=None, genomicSourceClass=None,
+        includePatientList=None):
+
+    # Parameters
+    if not variants and not featureConsequences:
+        abort(400, "You must supply either 'variants' or 'featureConsequences'.")
+
+    normalized_feature_consequence_list = []
+    if featureConsequences:
+        normalized_feature_consequence_list = list(map(common.get_feature_consequence, featureConsequences))
+
+    # Query
+    query = {}
+
+    # Genomic Source Class Query
+    if genomicSourceClass:
+        genomicSourceClass = genomicSourceClass.strip().lower()
+        query["genomicSourceClass"] = {"$eq": genomicSourceClass}
+
+    normalized_variants = []
+    if variants:
+        normalized_variants = list(map(common.get_variant, variants))
+
+    # Result Object
+    result = OrderedDict()
+    result["resourceType"] = "Parameters"
+    result["parameter"] = []
+
+    if normalized_variants:
+        genomics_build_presence = common.get_genomics_build_presence(query)
+
+        for normalizedVariant in normalized_variants:
+            if not normalizedVariant["GRCh37"] and genomics_build_presence["GRCh37"]:
+                abort(422, f'Failed LiftOver. Variant: {normalizedVariant["variant"]}')
+            elif not normalizedVariant["GRCh38"] and genomics_build_presence["GRCh38"]:
+                abort(422, f'Failed LiftOver. Variant: {normalizedVariant["variant"]}')
+
+    query_results = common.query_molecular_consequences_by_variants(normalized_variants, normalized_feature_consequence_list, query, True)
+
+    parameter = OrderedDict()
+    parameter["name"] = "consequences"
+    parameter["part"] = []
+
+    parameter["part"].append({
+        "name": "numerator",
+        "valueQuantity": {'value': len(query_results)}
+    })
+
+    parameter["part"].append({
+        "name": "denominator",
+        "valueQuantity": {"value": common.patients_db.count_documents({})}
+    })
+
+    if includePatientList:
+        patients = []
+        for patientID in query_results:
+            patients.append(f'{patientID["_id"]}')
+
+        for patientID in sorted(patients):
+            parameter["part"].append({
+                "name": "subject",
+                "valueString": f'{patientID}'
+            })
+
+    result["parameter"].append(parameter)
+
+    if not result["parameter"]:
+        result.pop("parameter")
+    return jsonify(result)

tests/expected_outputs/find_population_molecular_consequences/1.json

@@ -0,0 +1,26 @@
+{
+  "resourceType": "Parameters",
+  "parameter": [
+    {
+      "name": "consequences",
+      "part": [
+        {
+          "name": "numerator",
+          "valueQuantity": {
+            "value": 1
+          }
+        },
+        {
+          "name": "denominator",
+          "valueQuantity": {
+            "value": 1116
+          }
+        },
+        {
+          "name": "subject",
+          "valueString": "TCGA-DD-A1EH"
+        }
+      ]
+    }
+  ]
+}

tests/integration_tests/test_population_phenotype_operations.py

@@ -74,3 +74,16 @@ def test_find_population_dx_implications_4(client):
     response = client.get(url)
 
     tu.compare_actual_and_expected_output(f'{tu.FIND_POPULATION_DX_IMPLICATIONS_OUTPUT_DIR}4.json', response.json)
+
+
+"""
+Find Population Molecular Consequences Tests
+-------------------------------------
+"""
+
+
+def test_find_population_molecular_consequences_1(client):
+    url = tu.find_population_molecular_consequences_query('variants=NC_000001.10:152785039:G:T&featureConsequences=http://sequenceontology.org|SO:0001583&includePatientList=true')
+    response = client.get(url)
+
+    tu.compare_actual_and_expected_output(f'{tu.FIND_POPULATION_MOLECULAR_CONSEQUENCES_OUTPUT_DIR}1.json', response.json)

tests/utilities.py

@@ -51,6 +51,9 @@
 FIND_POPULATION_DX_IMPLICATIONS_URL = "/population-operations/phenotype-operations/$find-population-dx-implications"
 FIND_POPULATION_DX_IMPLICATIONS_OUTPUT_DIR = "tests/expected_outputs/find_population_dx_implications/"
 
+FIND_POPULATION_MOLECULAR_CONSEQUENCES_URL = "/population-operations/phenotype-operations/$find-population-molecular-consequences"
+FIND_POPULATION_MOLECULAR_CONSEQUENCES_OUTPUT_DIR = "tests/expected_outputs/find_population_molecular_consequences/"
+
 GET_FEATURE_COORDINATES_URL = "/utilities/get-feature-coordinates"
 GET_FEATURE_COORDINATES_OUTPUT_DIR = "tests/expected_outputs/get_feature_coordinates/"
 
@@ -122,6 +125,10 @@ def find_population_dx_implications_query(query):
     return f"{FIND_POPULATION_DX_IMPLICATIONS_URL}?{query}"
 
 
+def find_population_molecular_consequences_query(query):
+    return f"{FIND_POPULATION_MOLECULAR_CONSEQUENCES_URL}?{query}"
+
+
 def get_feature_coordinates_query(query):
     return f"{GET_FEATURE_COORDINATES_URL}?{query}"