passages.id: split_4_test_835_passage
passages.type: progene_text
passages.text: To further investigate the Tcr - critical interval , a 30 - kb region upstream of the Tcp10b(t) gene ( a testis - expressed former candidate for Tcr ) was sequenced , along with the duplicated paralogous region associated with Tcp10c ( t ) , which lies immediately adjacent but outside the Tcr interval .