diff --git a/NF.jsonld b/NF.jsonld
index 940528ff..37db744f 100644
--- a/NF.jsonld
+++ b/NF.jsonld
@@ -26477,6 +26477,9 @@
                 {
                     "@id": "bts:PROMISCognitiveFunction"
                 },
+                {
+                    "@id": "bts:Proximityextensionassay"
+                },
                 {
                     "@id": "bts:QuantitativePCR"
                 },
@@ -29475,6 +29478,26 @@
             "sms:required": "sms:false",
             "sms:validationRules": []
         },
+        {
+            "@id": "bts:Proximityextensionassay",
+            "@type": "rdfs:Class",
+            "rdfs:comment": "TBD",
+            "rdfs:label": "Proximityextensionassay",
+            "rdfs:subClassOf": [
+                {
+                    "@id": "bts:ProtocolAssay"
+                },
+                {
+                    "@id": "bts:Assay"
+                }
+            ],
+            "schema:isPartOf": {
+                "@id": "http://schema.biothings.io"
+            },
+            "sms:displayName": "proximity extension assay",
+            "sms:required": "sms:false",
+            "sms:validationRules": []
+        },
         {
             "@id": "bts:QuantitativePCR",
             "@type": "rdfs:Class",
@@ -30573,6 +30596,9 @@
                 {
                     "@id": "bts:PROMISCognitiveFunction"
                 },
+                {
+                    "@id": "bts:Proximityextensionassay"
+                },
                 {
                     "@id": "bts:QuantitativePCR"
                 },
diff --git a/modules/Assay/Assay.yaml b/modules/Assay/Assay.yaml
index c89257e8..97b56ed8 100644
--- a/modules/Assay/Assay.yaml
+++ b/modules/Assay/Assay.yaml
@@ -489,6 +489,9 @@ enums:
       PROMIS Cognitive Function: 
         description: The PROMIS Cognitive Function and Cognitive Function Abilities Subset item banks assess patient-perceived cognitive deficits.
         meaning: http://www.healthmeasures.net/images/PROMIS/manuals/PROMIS_Cognitive_Function_Scoring_Manual.pdf
+      proximity extension assay:
+        description: Olink's Proximity Extension Assay (PEA) combines specificity and scalability to enable high-throughput, multiplex protein biomarker analysis. 
+        source: https://olink.com/technology/what-is-pea
       quantitative PCR:
         description: Quantitative PCR (Q-PCR) is used to measure the quantity of a PCR product (commonly in real-time). It quantitatively measures starting amounts of DNA, cDNA, or RNA.
         meaning: http://purl.obolibrary.org/obo/MI_1195
diff --git a/registered-json-schemas/PortalDataset.json b/registered-json-schemas/PortalDataset.json
index c99e206e..c0a6796d 100644
--- a/registered-json-schemas/PortalDataset.json
+++ b/registered-json-schemas/PortalDataset.json
@@ -166,6 +166,7 @@
           "polysomnography",
           "positron emission tomography",
           "PROMIS Cognitive Function",
+          "proximity extension assay",
           "quantitative PCR",
           "questionnaire",
           "reactive oxygen species assay",
diff --git a/registered-json-schemas/Superdataset.json b/registered-json-schemas/Superdataset.json
index cd8eb982..7a388fec 100644
--- a/registered-json-schemas/Superdataset.json
+++ b/registered-json-schemas/Superdataset.json
@@ -166,6 +166,7 @@
           "polysomnography",
           "positron emission tomography",
           "PROMIS Cognitive Function",
+          "proximity extension assay",
           "quantitative PCR",
           "questionnaire",
           "reactive oxygen species assay",