1592953087000 1312632483000 term-31790 1616541586393 1312632523000 1616290583151 adlib fitz-online adlib-term-31790 f101b5a4-498a-32db-ab98-0f67d3870c1c 2 1 scope note Fibrous protein that forms the chemical basis of epidermal tissue, such as hair, horn, wool, nail, or feather. W M.MT.AFU.AFU.ALO.ELK.BOK 1 code M.MT.AFU.AFU.ALO.ELK.BOK 1 keratin reference term-31789 adlib-term-31789 8d4258e8-6039-3bb2-b321-96e818604934 protein keratin term