diff --git a/src/bioregistry/data/bioregistry.json b/src/bioregistry/data/bioregistry.json
index 2bc00f1c0..b405f4a53 100644
--- a/src/bioregistry/data/bioregistry.json
+++ b/src/bioregistry/data/bioregistry.json
@@ -80421,6 +80421,21 @@
       "publication": "https://proconsortium.org/pro_pub.shtml",
       "version": "68.0"
     },
+    "contributor_extras": [
+      {
+        "email": "dan5@georgetown.edu",
+        "github": "nataled",
+        "name": "Darren Natale",
+        "orcid": "0000-0001-5809-9523"
+      }
+    ],
+    "example_extras": [
+      "P0DP23",
+      "Q15796",
+      "Q15796-1",
+      "A0A0G2QC33",
+      "A0A0G2QC33-2"
+    ],
     "fairsharing": {
       "abbreviation": "PRO",
       "contact": {
@@ -80567,7 +80582,7 @@
       "name": "PRotein Ontology (PRO)",
       "prefix": "PR"
     },
-    "pattern": "^\\d+$",
+    "pattern": "^(?:\\d{9}|[OPQ][0-9][A-Z0-9]{3}[0-9](?:-\\d+)?|[A-NR-Z][0-9](?:[A-Z][A-Z0-9]{2}[0-9]){1,2}(?:-\\d+)?)$",
     "prefixcommons": {
       "alt_uri_formats": [
         "http://purl.org/obo/owl/PR#$1"
@@ -80638,6 +80653,9 @@
         "year": 2007
       }
     ],
+    "references": [
+      "https://github.com/biopragmatics/bioregistry/issues/959"
+    ],
     "synonyms": [
       "PR",
       "PRO"