>tr|Q9BYK1|Q9BYK1_HUMAN Small ribosomal subunit protein eS21 OS=Homo sapiens GN=RPS21 MQNDAGEFVDLYVPRKCSASNRIIGAKDHASIQMNVAEVDKVTGRFNGQFKTYAICGAIR RMVSVSLGFAHHFGTSWTLPCALECVMVPE