PDB: 1i1a Compound: neonatal fc receptor a Classification: IMMUNE SYSTEM Entry date in PDB: 2001-02-14 Resolution [Å]: 2.80 R-Factor: 0.222

CHAIN: A SWISS-PROT/TREMBL: P13599    KEYWORD: 3D-structure    Glycoprotein    IgG-binding protein    Immunoglobulin domain    Receptor    Signal    Transmembrane    SCOP: b.1.1.2 All beta proteins    Immunoglobulin-like beta-sandwich    Immunoglobulin    C1 set domains (antibody constant domain-like)    Fc (IgG) receptor, alpha-3 domain    Rat (Rattus norvegicus) SCOP: d.19.1.1 Alpha and beta proteins (a+b)    MHC antigen-recognition domain    MHC antigen-recognition domain    MHC antigen-recognition domain    Fc (IgG) receptor, alpha-1 and alpha-2 domains    Rat (Rattus norvegicus) GO:  MHC class I protein complex    MHC class I receptor activity    antigen presentation    CHAIN: B SWISS-PROT/TREMBL: P07151    KEYWORD: 3D-structure    Immunoglobulin domain    MHC I    Signal    SCOP: b.1.1.2 All beta proteins    Immunoglobulin-like beta-sandwich    Immunoglobulin    C1 set domains (antibody constant domain-like)    beta2-microglobulin    Rat (Rattus norvegicus) GO:   CHAIN: C SWISS-PROT/TREMBL: P20760    KEYWORD: 3D-structure    Immunoglobulin C region    Immunoglobulin domain    Repeat    SCOP: b.1.1.2 All beta proteins    Immunoglobulin-like beta-sandwich    Immunoglobulin    C1 set domains (antibody constant domain-like)    Immunoglobulin heavy chain gamma constant domain 2, CH2-gamma    Rat (Rattus norvegicus) SCOP: b.1.1.2 All beta proteins    Immunoglobulin-like beta-sandwich    Immunoglobulin    C1 set domains (antibody constant domain-like)    Immunoglobulin heavy chain gamma constant domain 3, CH3-gamma    Rat (Rattus norvegicus) GO:   CHAIN: D SWISS-PROT/TREMBL: P20760    KEYWORD: 3D-structure    Immunoglobulin C region    Immunoglobulin domain    Repeat    SCOP: b.1.1.2 All beta proteins    Immunoglobulin-like beta-sandwich    Immunoglobulin    C1 set domains (antibody constant domain-like)    Immunoglobulin heavy chain gamma constant domain 2, CH2-gamma    Rat (Rattus norvegicus) SCOP: b.1.1.2 All beta proteins    Immunoglobulin-like beta-sandwich    Immunoglobulin    C1 set domains (antibody constant domain-like)    Immunoglobulin heavy chain gamma constant domain 3, CH3-gamma    Rat (Rattus norvegicus) GO:

Image Source: PDB

1bmg - - percentage of sequence identity: 72
1cqk A - percentage of sequence identity: 71
1l6x A - percentage of sequence identity: 64
3fru A - percentage of sequence identity: 100