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(-) Description

Title :  STRUCTURE OF THE HUMAN IGE-FC BOUND TO ITS HIGH AFFINITY RECEPTOR FC(EPSILON)RI(ALPHA)
 
Authors :  S. C. Garman, B. A. Wurzburg, S. S. Tarchevskaya, J. P. Kinet, T. S. Jarde
Date :  20 Jun 00  (Deposition) - 20 Jul 00  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.50
Chains :  Asym./Biol. Unit :  A,B,D
Keywords :  Immunoglobulin Fold, Glycoprotein, Receptor, Ige-Binding Protein, Ige Antibody, Ige-Fc, Immune System (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. C. Garman, B. A. Wurzburg, S. S. Tarchevskaya, J. P. Kinet, T. S. Jardetzky
Structure Of The Fc Fragment Of Human Ige Bound To Its High-Affinity Receptor Fc (Epsilon) Ri (Alpha).
Nature V. 406 259 2000
PubMed-ID: 10917520  |  Reference-DOI: 10.1038/35018500

(-) Compounds

Molecule 1 - HIGH AFFINITY IMMUNOGLOBULIN EPSILON RECEPTOR ALPHA- SUBUNIT
    Chains: A
    Engineered: YES
    Expression System: HI-5 INSECT CELLS
    Expression System Common: HI-5 INSECT CELLS
    Expression System Plasmid: PVL1392
    Expression System Vector Type: BACULOVIRUS
    Fragment: EXTRACELLULAR DOMAIN
    Mutation: YES
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: HIGH AFFINITY IGE-FC RECEPTOR, FC(EPSILON)RI(ALPHA)
 
Molecule 2 - IG EPSILON CHAIN C REGION
    Chains: B, D
    Engineered: YES
    Expression System: HI-5 INSECT CELLS
    Expression System Common: HI-5 INSECT CELLS
    Expression System Plasmid: PVL1392
    Expression System Vector Type: BACULOVIRUS
    Fragment: C(EPSILON)3-C(EPSILON)4 DOMAINS
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: IGE-FC

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit : ABD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 31)

Asymmetric/Biological Unit (5, 31)
No.NameCountTypeFull Name
1CPS5Ligand/Ion3-[(3-CHOLAMIDOPROPYL)DIMETHYLAMMONIO]-1-PROPANESULFONATE
2FUC2Ligand/IonALPHA-L-FUCOSE
3MAN9Ligand/IonALPHA-D-MANNOSE
4NAG10Ligand/IonN-ACETYL-D-GLUCOSAMINE
5SO45Ligand/IonSULFATE ION

(-) Sites  (31, 31)

Asymmetric Unit (31, 31)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREASN A:21 , NAG A:222 , FUC A:224BINDING SITE FOR RESIDUE NAG A 221
02AC2SOFTWARENAG A:221 , MAN A:223 , FUC A:224BINDING SITE FOR RESIDUE NAG A 222
03AC3SOFTWARENAG A:222BINDING SITE FOR RESIDUE MAN A 223
04AC4SOFTWARENAG A:221 , NAG A:222BINDING SITE FOR RESIDUE FUC A 224
05AC5SOFTWAREASN A:42 , GLU A:61 , SER A:63 , NAG A:243BINDING SITE FOR RESIDUE NAG A 242
06AC6SOFTWAREGLU A:61 , SER A:63 , NAG A:242 , MAN A:244BINDING SITE FOR RESIDUE NAG A 243
07AC7SOFTWAREPHE A:60 , NAG A:243 , MAN A:245 , MAN A:246BINDING SITE FOR RESIDUE MAN A 244
08AC8SOFTWAREMAN A:244BINDING SITE FOR RESIDUE MAN A 245
09AC9SOFTWAREMAN A:244 , ARG D:427BINDING SITE FOR RESIDUE MAN A 246
10BC1SOFTWAREASN A:166 , NAG A:367 , FUC A:369BINDING SITE FOR RESIDUE NAG A 366
11BC2SOFTWARENAG A:366 , FUC A:369BINDING SITE FOR RESIDUE NAG A 367
12BC3SOFTWARENAG A:366 , NAG A:367BINDING SITE FOR RESIDUE FUC A 369
13BC4SOFTWAREASP B:362 , GLN B:392 , ASN B:394 , NAG B:695BINDING SITE FOR RESIDUE NAG B 694
14BC5SOFTWARETYR B:339 , GLN B:392 , NAG B:694 , MAN B:696BINDING SITE FOR RESIDUE NAG B 695
15BC6SOFTWARETYR B:339 , NAG B:695 , MAN B:697 , MAN B:698BINDING SITE FOR RESIDUE MAN B 696
16BC7SOFTWAREMAN B:696 , MAN B:699BINDING SITE FOR RESIDUE MAN B 697
17BC8SOFTWAREMAN B:696BINDING SITE FOR RESIDUE MAN B 698
18BC9SOFTWAREGLN B:494 , MAN B:697BINDING SITE FOR RESIDUE MAN B 699
19CC1SOFTWAREASP D:362 , GLN D:392 , ASN D:394 , THR D:396 , NAG D:695BINDING SITE FOR RESIDUE NAG D 694
20CC2SOFTWARETYR D:339 , GLN D:392 , NAG D:694 , MAN D:696BINDING SITE FOR RESIDUE NAG D 695
21CC3SOFTWARENAG D:695BINDING SITE FOR RESIDUE MAN D 696
22CC4SOFTWAREPRO A:2 , GLN A:72 , TRP A:130 , ARG B:334BINDING SITE FOR RESIDUE SO4 B 201
23CC5SOFTWARESER B:366 , LYS B:367 , HIS B:424BINDING SITE FOR RESIDUE SO4 B 202
24CC6SOFTWARETHR A:139 , ASN A:140BINDING SITE FOR RESIDUE SO4 A 203
25CC7SOFTWARETHR B:493 , GLN B:494 , ARG B:496 , THR D:493 , GLN D:494 , ARG D:496BINDING SITE FOR RESIDUE SO4 B 204
26CC8SOFTWARELEU D:429 , ARG D:431BINDING SITE FOR RESIDUE SO4 D 205
27CC9SOFTWARESER A:36 , LYS A:38 , ARG A:111 , TRP A:113 , CPS A:371 , CPS D:105BINDING SITE FOR RESIDUE CPS A 370
28DC1SOFTWARELYS A:38 , GLN A:69 , GLN A:71 , GLN A:72 , TYR A:116 , CPS A:370 , ARG B:427 , SER D:331BINDING SITE FOR RESIDUE CPS A 371
29DC2SOFTWARETRP A:156 , CPS D:104 , ALA D:364 , HIS D:424BINDING SITE FOR RESIDUE CPS D 103
30DC3SOFTWARELEU A:45 , GLU A:47 , CPS D:103 , CPS D:105BINDING SITE FOR RESIDUE CPS D 104
31DC4SOFTWARECPS A:370 , CPS D:104 , LYS D:367 , HIS D:424BINDING SITE FOR RESIDUE CPS D 105

(-) SS Bonds  (7, 7)

Asymmetric/Biological Unit
No.Residues
1A:26 -A:68
2A:107 -A:151
3B:329 -D:329
4B:358 -B:418
5B:464 -B:524
6D:358 -D:418
7D:464 -D:524

(-) Cis Peptide Bonds  (5, 5)

Asymmetric/Biological Unit
No.Residues
1Asn A:10 -Pro A:11
2Met B:470 -Pro B:471
3Ser B:532 -Pro B:533
4Met D:470 -Pro D:471
5Ser D:532 -Pro D:533

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 4)

Asymmetric/Biological Unit (3, 4)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_020091K84RFCERA_HUMANPolymorphism2298804AK59R
2UniProtVAR_020092S101NFCERA_HUMANPolymorphism2298805AS76N
3UniProtVAR_003885W359LIGHE_HUMANPolymorphism  ---B/DW478L
  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 4)

Asymmetric/Biological Unit (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IG_MHCPS00290 Immunoglobulins and major histocompatibility complex proteins signature.IGHE_HUMAN83-89
297-303
 
403-409
 		  4-
B:416-422
D:416-422
B:522-528
D:522-528

(-) Exons   (7, 10)

Asymmetric/Biological Unit (7, 10)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENST000003681151ENSE00001277214chr1:159259504-15925954340FCERA_HUMAN-00--
1.2aENST000003681152aENSE00001277230chr1:159272096-159272209114FCERA_HUMAN1-19190--
1.3ENST000003681153ENSE00001067917chr1:159272644-15927266421FCERA_HUMAN19-2681A:1-11
1.4aENST000003681154aENSE00001067919chr1:159273718-159273972255FCERA_HUMAN26-111861A:1-8686
1.5ENST000003681155ENSE00001277186chr1:159275778-159276035258FCERA_HUMAN111-197871A:86-17287
1.6bENST000003681156bENSE00001446352chr1:159277538-159278014477FCERA_HUMAN197-257611A:172-1732
2.1ENST000003905411ENSE00001935719chr14:106068065-106067756310IGHE_HUMAN1-1041040--
2.2ENST000003905412ENSE00001508179chr14:106067548-106067228321IGHE_HUMAN104-2111082B:328-330
D:329-330		3
2
2.3ENST000003905413ENSE00001508174chr14:106067141-106066818324IGHE_HUMAN211-3191092B:330-438
D:330-438		109
109
2.4ENST000003905414ENSE00001943927chr14:106066734-106066278457IGHE_HUMAN319-4281102B:438-544
D:438-544		107
107

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:173
 aligned with FCERA_HUMAN | P12319 from UniProtKB/Swiss-Prot  Length:257

    Alignment length:173
                                    35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195   
          FCERA_HUMAN    26 VPQKPKVSLNPPWNRIFKGENVTLTCNGNNFFEVSSTKWFHNGSLSEETNSSLNIVNAKFEDSGEYKCQHQQVNESEPVYLEVFSDWLLLQASAEVVMEGQPLFLRCHGWRNWDVYKVIYYKDGEALKYWYENHNISITNATVEDSGTYYCTGKVWQLDYESEPLNITVIKAP 198
               SCOP domains d1f6aa1 A:1-85 IgE high affinity receptor alpha subunit                              d1f6aa2 A:86-173 IgE high affinity receptor alpha subunit                                SCOP domains
               CATH domains ---1f6aA01 A:4-84 Immunoglobulins                                                   1f6aA02 A:85-173 Immunoglobulins                                                          CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......eeee....eee....eeeee...........eeee..ee......eeee...hhhhheeeeee.........eeeeee...eeeee...ee.....eeeeeee.hhh..eeeeeee..eeeeee................eeeeeeeee..eeee...eeeee.... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------R----------------N------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) 1------------------------------------------------------------------------------------Exon 1.5  PDB: A:86-172 UniProt: 111-197                                               - Transcript 1 (1)
           Transcript 1 (2) Exon 1.4a  PDB: A:1-86 UniProt: 26-111                                                -------------------------------------------------------------------------------------1. Transcript 1 (2)
                 1f6a A   1 VPQKPKVSLNPPWNRIFKGENVTLTCNGNNFFEVSSTKWFHNGSLSEETNSSLNIVNAKFEDSGEYKCQHQQVAESEPVYLEVFSDWLLLQASAEVVMEGQPLFLRCHGWRNWDVYKVIYYKDGEALKYWYENHAISITNAAAEDSGTYYCTGKVWQLDYESEPLNITVIKAP 173
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170   


Chain B from PDB  Type:PROTEIN  Length:217
 aligned with IGHE_HUMAN | P01854 from UniProtKB/Swiss-Prot  Length:428

    Alignment length:217
                                   218       228       238       248       258       268       278       288       298       308       318       328       338       348       358       368       378       388       398       408       418       
           IGHE_HUMAN   209 CADSNPRGVSAYLSRPSPFDLFIRKSPTITCLVVDLAPSKGTVNLTWSRASGKPVNHSTRKEEKQRNGTLTVTSTLPVGTRDWIEGETYQCRVTHPHLPRALMRSTTKTSGPRAAPEVYAFATPEWPGSRDKRTLACLIQNFMPEDISVQWLHNEVQLPDARHSTTQPRKTKGSGFFVFSRLEVTRAEWEQKDEFICRAVHEAASPSQTVQRAVSVN 425
               SCOP domains d1f6ab1 B:328-438 Immunoglobulin heavy chain epsilon constant domain 3, CH3-epsilon                            d1f6ab2 B:439-544 Immunoglobulin heavy chain epsilon constant domain 4, CH4-epsilon                        SCOP domains
               CATH domains --------1f6aB01 B:336-435 Immunoglobulins                                                                   1f6aB02 B:436-543 Immunoglobulins                                                                           - CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhh.eeee..hhhhhhh....eeeeeeeee.........eeee...........eeee.....eeeeeeee.hhhhhhh..eeeeee........eeeeee.........eeeeee.........eeeeeeeeeee.....ee.........hhhhhee...ee.....eeeeeeeeeehhhhhhh..ee..ee........ee..ee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------L------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------IG_MHC ---------------------------------------------------------------------------------------------------IG_MHC ---------------- PROSITE
           Transcript 2 (1) 2.2-----------------------------------------------------------------------------------------------------------Exon 2.4  PDB: B:438-544 UniProt: 319-428 [INCOMPLETE]                                                      Transcript 2 (1)
           Transcript 2 (2) --Exon 2.3  PDB: B:330-438 UniProt: 211-319                                                                    ---------------------------------------------------------------------------------------------------------- Transcript 2 (2)
                 1f6a B 328 PCDSNPRGVSAYLSRPSPFDLFIRKSPTITCLVVDLAPSKGTVNLTWSRASGKPVNHSTRKEEKQRNGTLTVTSTLPVGTRDWIEGETYQCRVTHPHLPRALMRSTTKTSGPRAAPEVYAFATPEWPGSRDKRTLACLIQNFMPEDISVQWLHNEVQLPDARHSTTQPRKTKGSGFFVFSRLEVTRAEWEQKDEFICRAVHEAASPSQTVQRAVSVN 544
                                   337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       


Chain D from PDB  Type:PROTEIN  Length:216
 aligned with IGHE_HUMAN | P01854 from UniProtKB/Swiss-Prot  Length:428

    Alignment length:216
                                   219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419      
           IGHE_HUMAN   210 ADSNPRGVSAYLSRPSPFDLFIRKSPTITCLVVDLAPSKGTVNLTWSRASGKPVNHSTRKEEKQRNGTLTVTSTLPVGTRDWIEGETYQCRVTHPHLPRALMRSTTKTSGPRAAPEVYAFATPEWPGSRDKRTLACLIQNFMPEDISVQWLHNEVQLPDARHSTTQPRKTKGSGFFVFSRLEVTRAEWEQKDEFICRAVHEAASPSQTVQRAVSVN 425
               SCOP domains d1f6ad1 D:329-438 Immunoglobulin heavy chain epsilon constant domain 3, CH3-epsilon                           d1f6ad2 D:439-544 Immunoglobulin heavy chain epsilon constant domain 4, CH4-epsilon                        SCOP domains
               CATH domains -------1f6aD01 D:336-435 Immunoglobulins                                                                   1f6aD02 D:436-543 Immunoglobulins                                                                           - CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ........eeeee..hhhhhhh....eeeeeeeee........eeeee...........eeee.....eeeeeeee.hhhhhhh..eeeeee........eeeeee.........eeeeee.........eeeeeeeeeee.....ee.........hhhhhee...ee.....eeeeeeeeeehhhhhhh..eeeeee........eeeeee... Sec.struct. author
                 SAPs(SNPs) -----------------------------------------------------------------------------------------------------------------------------------------------------L------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------IG_MHC ---------------------------------------------------------------------------------------------------IG_MHC ---------------- PROSITE
           Transcript 2 (1) 2.-----------------------------------------------------------------------------------------------------------Exon 2.4  PDB: D:438-544 UniProt: 319-428 [INCOMPLETE]                                                      Transcript 2 (1)
           Transcript 2 (2) -Exon 2.3  PDB: D:330-438 UniProt: 211-319                                                                    ---------------------------------------------------------------------------------------------------------- Transcript 2 (2)
                 1f6a D 329 CDSNPRGVSAYLSRPSPFDLFIRKSPTITCLVVDLAPSKGTVNLTWSRASGKPVNHSTRKEEKQRNGTLTVTSTLPVGTRDWIEGETYQCRVTHPHLPRALMRSTTKTSGPRAAPEVYAFATPEWPGSRDKRTLACLIQNFMPEDISVQWLHNEVQLPDARHSTTQPRKTKGSGFFVFSRLEVTRAEWEQKDEFICRAVHEAASPSQTVQRAVSVN 544
                                   338       348       358       368       378       388       398       408       418       428       438       448       458       468       478       488       498       508       518       528       538
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (3, 6)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (1, 6)

Asymmetric/Biological Unit
(-)
Class: Mainly Beta (13760)
(-)
Architecture: Sandwich (5577)
(-)
Topology: Immunoglobulin-like (3897)
(-)
Homologous Superfamily: Immunoglobulins (2282)
(-)
Human (Homo sapiens) (912)
1a1f6aB02B:436-543
1b1f6aD02D:436-543
1c1f6aA01A:4-84
1d1f6aB01B:336-435
1e1f6aD01D:336-435
1f1f6aA02A:85-173

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1F6A)

(-) Gene Ontology  (35, 37)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (FCERA_HUMAN | P12319)
molecular function
    GO:0019863    IgE binding    Interacting selectively and non-covalently with an immunoglobulin of the IgE isotype.
    GO:0019767    IgE receptor activity    Combining with an immunoglobulin of the IgE isotype via the Fc region, and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
biological process
    GO:0038095    Fc-epsilon receptor signaling pathway    A series of molecular signals initiated by the binding of the Fc portion of immunoglobulin E (IgE) to an Fc-epsilon receptor on the surface of a signal-receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription. The Fc portion of an immunoglobulin is its C-terminal constant region.
    GO:0007257    activation of JUN kinase activity    The initiation of the activity of the inactive enzyme JUN kinase (JNK).
    GO:0000187    activation of MAPK activity    The initiation of the activity of the inactive enzyme MAP kinase (MAPK).
    GO:0007166    cell surface receptor signaling pathway    A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
    GO:0019370    leukotriene biosynthetic process    The chemical reactions and pathways resulting in the formation of leukotriene, a pharmacologically active substance derived from a polyunsaturated fatty acid, such as arachidonic acid.
    GO:0050850    positive regulation of calcium-mediated signaling    Any process that activates or increases the frequency, rate or extent of calcium-mediated signaling.
    GO:0045425    positive regulation of granulocyte macrophage colony-stimulating factor biosynthetic process    Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of granulocyte macrophage colony-stimulating factor.
    GO:0045401    positive regulation of interleukin-3 biosynthetic process    Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of interleukin-3.
    GO:0043306    positive regulation of mast cell degranulation    Any process that activates or increases the frequency, rate or extent of mast cell degranulation.
    GO:0050731    positive regulation of peptidyl-tyrosine phosphorylation    Any process that activates or increases the frequency, rate or extent of the phosphorylation of peptidyl-tyrosine.
    GO:0001812    positive regulation of type I hypersensitivity    Any process that activates or increases the frequency, rate or extent of type I hypersensitivity, a type of inflammatory response.
    GO:0001820    serotonin secretion    The regulated release of serotonin by a cell. Serotonin (5-hydroxytryptamine, or 5-HT) is a monoamine synthesised in serotonergic neurons in the central nervous system, enterochromaffin cells in the gastrointestinal tract and some immune system cells.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
cellular component
    GO:0009986    cell surface    The external part of the cell wall and/or plasma membrane.
    GO:0009897    external side of plasma membrane    The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0005887    integral component of plasma membrane    The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0005622    intracellular    The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Chain B,D   (IGHE_HUMAN | P01854)
molecular function
    GO:0003823    antigen binding    Interacting selectively and non-covalently with an antigen, any substance which is capable of inducing a specific immune response and of reacting with the products of that response, the specific antibody or specifically sensitized T-lymphocytes, or both. Binding may counteract the biological activity of the antigen.
    GO:0034987    immunoglobulin receptor binding    Interacting selectively and non-covalently with one or more specific sites on an immunoglobulin receptor molecule.
biological process
    GO:0050853    B cell receptor signaling pathway    A series of molecular signals initiated by the cross-linking of an antigen receptor on a B cell.
    GO:0038095    Fc-epsilon receptor signaling pathway    A series of molecular signals initiated by the binding of the Fc portion of immunoglobulin E (IgE) to an Fc-epsilon receptor on the surface of a signal-receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription. The Fc portion of an immunoglobulin is its C-terminal constant region.
    GO:0006958    complement activation, classical pathway    Any process involved in the activation of any of the steps of the classical pathway of the complement cascade which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes.
    GO:0042742    defense response to bacterium    Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
    GO:0006955    immune response    Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.
    GO:0045087    innate immune response    Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
    GO:0006911    phagocytosis, engulfment    The internalization of bacteria, immune complexes and other particulate matter or of an apoptotic cell by phagocytosis, including the membrane and cytoskeletal processes required, which involves one of three mechanisms: zippering of pseudopods around a target via repeated receptor-ligand interactions, sinking of the target directly into plasma membrane of the phagocytosing cell, or induced uptake via an enhanced membrane ruffling of the phagocytosing cell similar to macropinocytosis.
    GO:0006910    phagocytosis, recognition    The initial step in phagocytosis involving adhesion to bacteria, immune complexes and other particulate matter, or an apoptotic cell and based on recognition of factors such as bacterial cell wall components, opsonins like complement and antibody or protein receptors and lipids like phosphatidyl serine, and leading to intracellular signaling in the phagocytosing cell.
    GO:0050871    positive regulation of B cell activation    Any process that activates or increases the frequency, rate or extent of B cell activation.
cellular component
    GO:0072562    blood microparticle    A phospholipid microvesicle that is derived from any of several cell types, such as platelets, blood cells, endothelial cells, or others, and contains membrane receptors as well as other proteins characteristic of the parental cell. Microparticles are heterogeneous in size, and are characterized as microvesicles free of nucleic acids.
    GO:0009897    external side of plasma membrane    The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0042571    immunoglobulin complex, circulating    An immunoglobulin complex that is secreted into extracellular space and found in mucosal areas or other tissues or circulating in the blood or lymph. In its canonical form, a circulating immunoglobulin complex is composed of two identical heavy chains and two identical light chains, held together by disulfide bonds. Some forms of are polymers of the basic structure and contain additional components such as J-chain and the secretory component.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

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        FCERA_HUMAN | P12319: 1als 1alt 1f2q 1j86 1j87 1j88 1j89 1rpq 2y7q
        IGHE_HUMAN | P01854: 1fp5 1g84 1ige 1o0v 2ige 2wqr 2y7q 3h9y 3h9z 3ha0 4ezm 4gko 4grg 4gt7 4j4p 4ki1 5anm 5hys 5lgj 5lgk

(-) Related Entries Specified in the PDB File

1f2q 1F2Q CONTAINS THE HUMAN HIGH-AFFINITY IGE RECEPTOR FC(EPSILON)RI(ALPHA)