Fix templates to work with empty a3m

Second fix needed for #244 PiperOrigin-RevId: 721790067 Change-Id: Ib3eebf30f270b45d08cc94057a4feca5b4753d63
google-deepmind · Jan 31, 2025 · 7f6edd0 · 7f6edd0
1 parent 4d0e7a6
commit 7f6edd0
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/alphafold3/data/templates.py b/src/alphafold3/data/templates.py
@@ -517,6 +517,9 @@ def from_hmmsearch_a3m(
     """
 
     def hit_generator(a3m: str):
+      if not a3m:
+        return  # Hmmsearch could return an empty string if there are no hits.
+
       for hit_seq, hit_desc in parsers.lazy_parse_fasta_string(a3m):
         pdb_id, auth_chain_id, start, end, full_length = _parse_hit_description(
             hit_desc