Rule 30⁴²
Requirements of European patent applications relating to nucleotide and amino acid sequences

(1) If nucleotide or amino acid sequences are disclosed in the European patent application, the description shall contain a sequence listing conforming to the rules laid down by the President of the European Patent Office for the standardised representation of nucleotide and amino acid sequences. 

(2) A sequence listing filed after the date of filing shall not form part of the description. 

(3) Where the applicant has not filed a sequence listing complying with the requirements under paragraph 1 at the date of filing, the European Patent Office shall invite the applicant to furnish such a sequence listing and pay the late furnishing fee. If the applicant does not furnish the required sequence listing and pay the required late furnishing fee within a period of two months after such an invitation, the application shall be refused.