Transformed fungus having enhanced ergothioneine productivity and method for producing ergothioneine

A transformed filamentous fungus comprising a gene encoding an enzyme (1) or genes encoding enzymes (1) and (2) inserted therein and can overexpress the inserted gene or genes,

• wherein the gene encoding the enzyme (1) is a gene having the base sequence set forth in SEQ ID NO:
• 1, 23 or 33, or the enzyme (1) is an enzyme having the amino acid sequence set forth in SEQ ID NO:
• 4, 26 or 34, and
• wherein the gene encoding the enzyme (2) is a gene having the base sequence set forth in SEQ ID NO:
• 2, 3, 24 or 25, or the enzyme (2) is the enzyme having the amino acid sequence set forth in SEQ ID NO:
• 5, 6, 27 or 28, wherein the enzyme (1) catalyzes the reaction in which hercynyl cysteine sulfoxide represented by the following formula (I)
• is produced from histidine and cysteine in the presence of S-adenosylmethionine, iron (II), and oxygen;
• and wherein the enzyme (2) catalyzes the reaction in which ergothioneine is produced from hercynyl cysteine sulfoxide using pyridoxal 5′-phosphate as a coenzyme.