Research and development revenue is attributable to regions based on the location of the Company’s collaboration partner's parent company headquarters.  Research and development revenues disaggregated by location were as follows (in thousands):

Research and development revenue from related party relates to revenue from research and development agreements with Millennium Pharmaceuticals, Inc., a wholly-owned subsidiary of Takeda and were as follows (in thousands):

At June 30, 2020 and December 31, 2019, the Company had deferred revenue, other liabilities for co-share payments and accounts receivable balances from the research and development agreements with Takeda, who is a related party, were as follows (in thousands):