Create fetch_fasta.py

fetch_fasta.py

@@ -0,0 +1,33 @@
+import requests
+import re
+
+def FetchFasta_Uniprot(gene_symbol):
+    
+    organismid=9606
+    baseurl=f"https://rest.uniprot.org/uniprotkb/search?query=gene:{gene_symbol}+AND+organism_id:{organismid}&format=fasta"
+    response=requests.get(baseurl)
+    actualresponse=response.text
+
+    regex_pattern = r">.*?\s+([\s\S]+?)(?=>|$)"
+
+    match = re.search(regex_pattern, actualresponse)
+
+    if match:
+        sequence_block = match.group(1)
+        
+        clean_sequence = re.sub(r'\s+', '', sequence_block)
+
+        header_removed_sequence=clean_sequence.split("SV=")[1]
+        
+        
+        for character in header_removed_sequence:
+            if character.isnumeric()==True:
+                updated_sequence=header_removed_sequence.replace(character,"")
+                header_removed_sequence=updated_sequence
+
+        
+        print(header_removed_sequence)
+        return header_removed_sequence
+
+    else:
+        print("No sequence found after the first header.")