Nucleotide and amino acid sequences
If the ISR was not drawn up in full or in part because the sequence listing was not available to the ISA in electronic form in the specified format (see point 3.3.012), this may affect the procedure under Chapter II PCT.
If no (full) international search was carried out, the EPO as IPEA will not perform the international preliminary examination if a meaningful examination cannot be performed (see point 4.2.027). In such cases an invitation to file a sequence listing under Rule 13ter.2 PCT is not issued by the EPO as IPEA and applicants are advised not to file sequence listings at this late stage.
Source: http://www.epo.org/applying/international/guide-for-applicants/html/e/ga_c4_2_11.html
Date retrieved: 17 May 2021