HEADER    IMMUNE SYSTEM                           31-DEC-69   6KXS
TITLE     Cryo-EM structure of human IgM-Fc in complex with the J chain and the
TITLE   2 ectodomain of pIgR
COMPND    MOL_ID: 1;
COMPND   2 MOLECULE: Immunoglobulin heavy constant mu;
COMPND   3 CHAIN: A, B, C, D, E, F, G, H, K, L;
COMPND   4 ENGINEERED: YES;
COMPND   5 N-ACETYL-D-GLUCOSAMINE;
EXPDTA     ELECTRON MICROSCOPY
DBREF  6KXS B  229   576  UNP    P01871   IGHM_HUMAN     106    453
SEQRES   1 B  102  ILE ARG VAL PHE ALA ILE PRO PRO SER PHE ALA SER ILE
SEQRES   2 B  102  PHE LEU THR LYS SER THR LYS LEU THR CYS LEU VAL THR
SEQRES   3 B  102  ASP LEU THR THR TYR ASP SER VAL THR ILE SER TRP THR
SEQRES   4 B  102  ARG GLN ASN GLY GLU ALA VAL LYS THR HIS THR ASN ILE
SEQRES   5 B  102  SER GLU SER HIS PRO ASN ALA THR PHE SER ALA VAL GLY
SEQRES   6 B  102  GLU ALA SER ILE CYS GLU ASP ASP TRP ASN SER GLY GLU
SEQRES   7 B  102  ARG PHE THR CYS THR VAL THR HIS THR ASP LEU PRO SER
SEQRES   8 B  102  PRO LEU LYS GLN THR ILE SER ARG PRO LYS GLY