HEADER    IMMUNE SYSTEM                           31-DEC-69   6KXS
COMPND    MOL_ID: 3;
COMPND   2 MOLECULE: Polymeric immunoglobulin receptor;
COMPND   3 CHAIN: P;
COMPND   4 ENGINEERED: YES;
DBREF  6KXS P    1   547  UNP    P01833   PIGR_HUMAN      19    565
SEQRES   1 C  102  ILE ARG VAL PHE ALA ILE PRO PRO SER PHE ALA SER ILE
SEQRES   2 C  102  PHE LEU THR LYS SER THR LYS LEU THR CYS LEU VAL THR
SEQRES   3 C  102  ASP LEU THR THR TYR ASP SER VAL THR ILE SER TRP THR
SEQRES   4 C  102  ARG GLN ASN GLY GLU ALA VAL LYS THR HIS THR ASN ILE
SEQRES   5 C  102  SER GLU SER HIS PRO ASN ALA THR PHE SER ALA VAL GLY
SEQRES   6 C  102  GLU ALA SER ILE CYS GLU ASP ASP TRP ASN SER GLY GLU
SEQRES   7 C  102  ARG PHE THR CYS THR VAL THR HIS THR ASP LEU PRO SER
SEQRES   8 C  102  PRO LEU LYS GLN THR ILE SER ARG PRO LYS GLY