3M1B

Crystal structure of human FcRn with a dimeric peptide inhibitor


Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad3m1ba2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3m1ba1 Alpha and beta proteins (a+b) MHC antigen-recognition domain MHC antigen-recognition domain automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Cd3m1bc2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Cd3m1bc1 Alpha and beta proteins (a+b) MHC antigen-recognition domain MHC antigen-recognition domain automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ed3m1be2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ed3m1be1 Alpha and beta proteins (a+b) MHC antigen-recognition domain MHC antigen-recognition domain automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Gd3m1bg2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Gd3m1bg1 Alpha and beta proteins (a+b) MHC antigen-recognition domain MHC antigen-recognition domain automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3m1bb_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) beta2-microglobulin human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Dd3m1bd_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) beta2-microglobulin human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Fd3m1bf_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) beta2-microglobulin human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Hd3m1bh_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) beta2-microglobulin human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyMHC antigen-recognition domain 8034816 3000521 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054653 3000071 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054653 3000071 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyMHC antigen-recognition domain 8034816 3000521 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054653 3000071 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyMHC antigen-recognition domain 8034816 3000521 SCOP2B (2022-06-29)
GSCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054653 3000071 SCOP2B (2022-06-29)
GSCOP2B SuperfamilyMHC antigen-recognition domain 8034816 3000521 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8003766 3000071 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8003766 3000071 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8003766 3000071 SCOP2B (2022-06-29)
HSCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8003766 3000071 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AC1-set_2e3m1bA1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_2ECOD (1.6)
AMHC_Ie3m1bA2 A: a+b two layersX: MHC antigen-recognition domain (From Topology)H: MHC antigen-recognition domain (From Topology)T: MHC antigen-recognition domainF: MHC_IECOD (1.6)
CC1-set_2e3m1bC1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_2ECOD (1.6)
CMHC_Ie3m1bC2 A: a+b two layersX: MHC antigen-recognition domain (From Topology)H: MHC antigen-recognition domain (From Topology)T: MHC antigen-recognition domainF: MHC_IECOD (1.6)
EC1-set_2e3m1bE1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_2ECOD (1.6)
EMHC_Ie3m1bE2 A: a+b two layersX: MHC antigen-recognition domain (From Topology)H: MHC antigen-recognition domain (From Topology)T: MHC antigen-recognition domainF: MHC_IECOD (1.6)
GC1-set_2e3m1bG1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_2ECOD (1.6)
GMHC_Ie3m1bG2 A: a+b two layersX: MHC antigen-recognition domain (From Topology)H: MHC antigen-recognition domain (From Topology)T: MHC antigen-recognition domainF: MHC_IECOD (1.6)
BC1-set_2e3m1bB1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_2ECOD (1.6)
DC1-set_2e3m1bD1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_2ECOD (1.6)
FC1-set_2e3m1bF1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_2ECOD (1.6)
HC1-set_2e3m1bH1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_2ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
A, C, E, G
FCGRT (FcRn, neonatal Fc receptor) I-ALPHA-LIKE Homo sapiens (human) FCGRT*01 G-DOMAIN G-ALPHA1-LIKE, G-DOMAIN G-ALPHA2-LIKE, C-LIKE-DOMAIN C-LIKE RPI-MH1Like MH1LIKE-ALPHA-LIKE_B2M IMGT (202446-0)
B, D, F, H
FCGRT (FcRn, neonatal Fc receptor) B2M Homo sapiens (human) B2M*01, B2M*02 C-LIKE-DOMAIN C-LIKE RPI-MH1Like MH1LIKE-ALPHA-LIKE_B2M IMGT (202446-0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, C, E, G
PF07654Immunoglobulin C1-set domain (C1-set)Immunoglobulin C1-set domain- Domain
B, D, F, H
PF07654Immunoglobulin C1-set domain (C1-set)Immunoglobulin C1-set domain- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, C, E, G
IgG receptor FcRn large subunit p51
B, D, F, H
Beta-2-microglobulin
I, J
DIMERIC PEPTIDE INHIBITOR---

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
A, C, E, G
PharosP55899
B, D, F, H
PharosP61769

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
I, J
ACE RESIDAA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354

PSI-MOD :  N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359
I, J
LE1 Parent Component: VAL

RESIDAA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354

I, J
MLE Parent Component: LEU

RESIDAA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 , AA0337

PSI-MOD :  N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359 , N-methyl-L-leucine MOD:00342
I, J
NH2 RESIDAA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 , AA0337 , AA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100

PSI-MOD :  N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359 , N-methyl-L-leucine MOD:00342 , L-alanine amide MOD:00090 , L-asparagine amide MOD:00092 , L-aspartic acid 1-amide MOD:00093 , L-glutamine amide MOD:00095 , L-glutamic acid 1-amide MOD:00096 , glycine amide MOD:00097 , L-isoleucine amide MOD:00099 , L-leucine amide MOD:00100 , L-lysine amide MOD:00101 , L-methionine amide MOD:00102 , L-proline amide MOD:00104 , L-serine amide MOD:00105 , L-threonine amide MOD:00106 , L-tryptophan amide MOD:00107 , L-tyrosine amide MOD:00108 , L-valine amide MOD:00109
I, J
SAR Parent Component: GLY

RESIDAA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 , AA0337 , AA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100 , AA0063

PSI-MOD :  N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359 , N-methyl-L-leucine MOD:00342 , L-alanine amide MOD:00090 , L-asparagine amide MOD:00092 , L-aspartic acid 1-amide MOD:00093 , L-glutamine amide MOD:00095 , L-glutamic acid 1-amide MOD:00096 , glycine amide MOD:00097 , L-isoleucine amide MOD:00099 , L-leucine amide MOD:00100 , L-lysine amide MOD:00101 , L-methionine amide MOD:00102 , L-proline amide MOD:00104 , L-serine amide MOD:00105 , L-threonine amide MOD:00106 , L-tryptophan amide MOD:00107 , L-tyrosine amide MOD:00108 , L-valine amide MOD:00109 , N-methylglycine MOD:00072