See information on this cycle as part of The Josquin Research Project.
The antiphon Intemerata virgo (Cantus ID 003360) displays strong similarities with the melodic lines of C and T (passage from "quae redemptorem ... permansisti"):
1--d--e--f--g--g--gedf---e--d--e--f--g--g--g--g--f--h--h--g--g-4
"Intemerata virgo quae redemptorem Israel peperisti"
1--g--d--e--f--gf--efg--gf--de--e--e--g--g--g--fe--d--f---g--h--g--e--gg--e-4
"et post partum virgo permansisti dei genetrix intercede pro nobis" (http://cantusindex.org/id/003360)
Additional concordances in mss. that do not transmit motet cycles: E-SE, Ms. s.s. (“Segovia Codex; Cancionero musical de Segovia; Cancionero del Alcázar”), No. 18, ff. 85v-87r; F-CA MS 125-128, No. 93, ff. 86v-87r; E-Bbc M 454 (“Cancionero musical de Barcelona”), No. 59, ff. 128v-129r; I-Pc MS A.17, No. 2, ff. 4v-5r.
See also The Josquin Research Project.