1IGT - JenaLib

Asym./Biol. Unit - manually (Jmol Viewer)

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   STRUCTURE OF IMMUNOGLOBULIN

Authors :   L. J. Harris, S. B. Larson, K. W. Hasel, A. Mcpherson

Date :   25 Oct 96 (Deposition) - 07 Jul 97 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.80

Chains :   Asym./Biol. Unit : A,B,C,D

Keywords :   Intact Immunoglobulin V Region C Region, Immunoglobulin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   L. J. Harris, S. B. Larson, K. W. Hasel, A. Mcpherson
Refined Structure Of An Intact Igg2A Monoclonal Antibody.
Biochemistry V. 36 1581 1997
PubMed-ID: 9048542 | Reference-DOI: 10.1021/BI962514+
(for further references see the PDB file header)

Molecule 1 - IGG2A INTACT ANTIBODY - MAB231
	Chains	:	A, C
	Organism Common	:	HOUSE MOUSE
	Organism Scientific	:	MUS MUSCULUS
	Organism Taxid	:	10090
	Other Details	:	HYBRIDOMA MONOCLONAL ANTIBODY
	Strain	:	BALB/C

Molecule 2 - IGG2A INTACT ANTIBODY - MAB231
	Chains	:	B, D
	Organism Common	:	HOUSE MOUSE
	Organism Scientific	:	MUS MUSCULUS
	Organism Taxid	:	10090
	Other Details	:	HYBRIDOMA MONOCLONAL ANTIBODY
	Strain	:	BALB/C

		1	2	3	4
Asymmetric/Biological Unit	:	A	B	C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (6, 18)

No.	Name	Count	Type	Full Name
1	BMA	2	Ligand/Ion	BETA-D-MANNOSE
2	FUC	1	Ligand/Ion	ALPHA-L-FUCOSE
3	FUL	1	Ligand/Ion	BETA-L-FUCOSE
4	GAL	2	Ligand/Ion	BETA-D-GALACTOSE
5	MAN	4	Ligand/Ion	ALPHA-D-MANNOSE
6	NAG	8	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE

Asymmetric Unit (18, 18)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	ASP B:278 , TYR B:313 , ASN B:314 , FUL B:476 , NAG B:477	BINDING SITE FOR RESIDUE NAG B 475
02	AC2	SOFTWARE	TYR B:313 , NAG B:475	BINDING SITE FOR RESIDUE FUL B 476
03	AC3	SOFTWARE	NAG B:475 , BMA B:478 , MAN B:479	BINDING SITE FOR RESIDUE NAG B 477
04	AC4	SOFTWARE	PHE B:254 , NAG B:477 , MAN B:479 , MAN B:482	BINDING SITE FOR RESIDUE BMA B 478
05	AC5	SOFTWARE	NAG B:477 , BMA B:478 , NAG B:480	BINDING SITE FOR RESIDUE MAN B 479
06	AC6	SOFTWARE	LYS B:259 , THR B:273 , VAL B:275 , MAN B:479 , GAL B:481	BINDING SITE FOR RESIDUE NAG B 480
07	AC7	SOFTWARE	PRO B:257 , LYS B:259 , ASP B:262 , ILE B:271 , THR B:273 , NAG B:480	BINDING SITE FOR RESIDUE GAL B 481
08	AC8	SOFTWARE	BMA B:478 , NAG B:483	BINDING SITE FOR RESIDUE MAN B 482
09	AC9	SOFTWARE	ARG B:353 , MAN B:482	BINDING SITE FOR RESIDUE NAG B 483
10	BC1	SOFTWARE	TYR D:313 , ASN D:314 , FUC D:476 , NAG D:477	BINDING SITE FOR RESIDUE NAG D 475
11	BC2	SOFTWARE	TYR D:313 , NAG D:475	BINDING SITE FOR RESIDUE FUC D 476
12	BC3	SOFTWARE	NAG D:475 , BMA D:478 , MAN D:479	BINDING SITE FOR RESIDUE NAG D 477
13	BC4	SOFTWARE	PHE D:256 , NAG D:477 , MAN D:479 , MAN D:482	BINDING SITE FOR RESIDUE BMA D 478
14	BC5	SOFTWARE	NAG D:477 , BMA D:478 , NAG D:480	BINDING SITE FOR RESIDUE MAN D 479
15	BC6	SOFTWARE	LYS D:259 , MAN D:479 , GAL D:481	BINDING SITE FOR RESIDUE NAG D 480
16	BC7	SOFTWARE	ASP D:262 , ILE D:271 , THR D:273 , NAG D:480	BINDING SITE FOR RESIDUE GAL D 481
17	BC8	SOFTWARE	BMA D:478 , NAG D:483	BINDING SITE FOR RESIDUE MAN D 482
18	BC9	SOFTWARE	ARG D:353 , MAN D:482	BINDING SITE FOR RESIDUE NAG D 483

Asymmetric/Biological Unit

No.	Residues
1	A:23	-	A:88
2	A:134	-	A:194
3	A:214	-	B:128
4	B:22	-	B:92
5	B:142	-	B:208
6	B:237	-	D:237
7	B:240	-	D:240
8	B:242	-	D:242
9	B:274	-	B:340
10	B:390	-	B:456
11	C:23	-	C:88
12	C:134	-	C:194
13	C:214	-	D:128
14	D:22	-	D:92
15	D:142	-	D:208
16	D:274	-	D:340
17	D:390	-	D:456

Asymmetric/Biological Unit

No.	Residues
1	Ser A:7	-	Pro A:8
2	Tyr A:94	-	Pro A:95
3	Tyr A:140	-	Pro A:141
4	Phe B:148	-	Pro B:149
5	Glu B:150	-	Pro B:151
6	Met B:396	-	Pro B:397
7	Ser C:7	-	Pro C:8
8	Tyr C:94	-	Pro C:95
9	Tyr C:140	-	Pro C:141
10	Phe D:148	-	Pro D:149
11	Glu D:150	-	Pro D:151
12	Met D:396	-	Pro D:397

(no "SAP(SNP)/Variant" information available for 1IGT)

Asymmetric/Biological Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	IG_MHC	PS00290	Immunoglobulins and major histocompatibility complex proteins signature.	GCAA_MOUSE	306-312	2	B:454-460 D:454-460

(no "Exon" information available for 1IGT)

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:214
                                                                                                                                                                                                                                                       
               SCOP domains d1igta1 A:1-108 Immunoglobulin light chain kappa variable domain, VL-kappa                                  d1igta2 A:109-214 Immunoglobulin light chain kappa constant domain, CL-kappa                               SCOP domains
               CATH domains 1igtA01 A:1-108 Immunoglobulins                                                                             1igtA02 A:109-211 Immunoglobulins                                                                      --- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee...........eeeeee........eeeeee......eeee....eee......eeeeee..eeeeee....hhh..eeeeee...........eeeee.......eeeee...hhhhhh.eeeeeeeee.......eeeee.........eeeee...........eeeeeeeehhhhh...eeeeeee.......eeeeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1igt A    1 DIVLTQSPSSLSASLGDTITITCHASQNINVWLSWYQQKPGNIPKLLIYKASNLHTGVPSRFSGSGSGTGFTLTISSLQPEDIATYYCQQGQSYPLTFGGGTKLEIKRADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRNEC  214
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210

Chain B from PDB  Type:PROTEIN  Length:444
 aligned with GCAA_MOUSE | P01863 from UniProtKB/Swiss-Prot  Length:330

    Alignment length:444
                                                                                                                                                  1                                                                                                                                                                                                                                                                                                                                     
                                     -         -         -         -         -         -         -         -         -         -         -        |2        12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322    
          GCAA_MOUSE      - ----------------------------------------------------------------------------------------------------------------------AKTTAPSVYPLAPVCGDTTGSSVTLGCLVKGYFPEPVTLTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVTSSTWPSQSITCNVAHPASSTKVDKKIEPRGPTIKPCPPCKCPAPNLLGGPSVFIFPPKIKDVLMISLSPIVTCVVVDVSEDDPDVQISWFVNNVEVHTAQTQTHREDYNSTLRVVSALPIQHQDWMSGKEFKCKVNNKDLPAPIERTISKPKGSVRAPQVYVLPPPEEEMTKKQVTLTCMVTDFMPEDIYVEWTNNGKTELNYKNTEPVLDSDGSYFMYSKLRVEKKNWVERNSYSCSVVHEGLHNHHTTKSFSR  326
               SCOP domains d1igtb1 B:1-114 Immunoglobulin heavy chain variable domain, VH                                                         d1igtb2 B:115-235 Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma                         d1igtb3 B:236-361 Immunoglobulin heavy chain gamma constant domain 2, CH2-gamma                                        d1igtb4 B:363-474 Immunoglobulin heavy chain gamma constant domain 3, CH3-gamma                        SCOP domains
               CATH domains 1igtB01 B:1-114 Immunoglobulins                                                                                        1igtB02 B:115-236 Immunoglobulins                                                                        -------------1igtB03 B:250-360 Immunoglobulins                                                                       1igtB04 B:361-474 Immunoglobulins                                                                       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
     Sec.struct. author (1) ..eeeee..........eeeeeeee...hhh..eeeeee.....eeeeeee......eee.hhh...eeeeee....eeeeee....hhh.eeeeeee.............eee..........eeeee...........eeeeeeeeee....eeeeehhh.....eee.........eeeeeeeee..........eeeeee....eeeeee.........................eeeee...hhhhh......eeeeeee.........-----hhh...........eee....eeeeeeee..hhhhh...eeeeeee.......eeeeee.........eeeee...hhh....eeeeeeeee.......eeeeee.......eee............eeeeeeeehhhhh....eeeeee....hhh.eeee... Sec.struct. author (1)
     Sec.struct. author (2) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------eeeeee-------------------------------------------------------------------------------------------------------------------------------------------------------------------- Sec.struct. author (2)
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------IG_MHC -------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                1igt B    1 EVKLQESGGGLVQPGGSLKLSCATSGFTFSDYYMYWVRQTPEKRLEWVAYISNGGGSTYYPDTVKGRFTISRDNAKNTLYLQMSRLKSEDTAMYYCARHGGYYAMDYWGQGTTVTVSSAKTTAPSVYPLAPVCGDTTGSSVTLGCLVKGYFPEPVTLTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVTSSTWPSQSITCNVAHPASSTKVDKKIEPRGPTIKPCPPCKCPAPNLLGGPSVFIFPPKIKDVLMISLSPIVTCVVVDVSEDDPDVQISWFVNNVEVHTAQTQTHREDYNSTLRVVSALPIQHQDWMSGKEFKCKVNNKDLPAPIERTISKPKGSVRAPQVYVLPPPEEEMTKKQVTLTCMVTDFMPEDIYVEWTNNGKTELNYKNTEPVLDSDGSYFMYSKLRVEKKNWVERNSYSCSVVHEGLHNHHTTKSFSR  474
                                    10        20        30        40        50  |     59        69        79   |||  86        96|||||  105       115       125    || 137       147      |162      |173      |185       195|| ||  208       218    || 230 ||    242       252       262       272       282       292|||    306       318       328       338       348      |359 ||    370    || 382       392       402|  ||||417       427|||    440       450       460       470    
                                                                              52A                            82A||             97||||                           130|                  154|||    169|      180|          196| || 206|            223|   232|                                                      292|||            314|                                   355| 361|         375| ||                  402|  ||||           428||                                         
                                                                                                              82B|            100H|||                            133                   156||     171       183           198 ||  208             226    235                                                       295||             317                                    357  363          377 ||                   405  ||||            430|                                         
                                                                                                               82C             100I||                                                   157|                               200|                                                                                    296|                                                                        379|                      408|||             433                                         
                                                                                                                                100J|                                                    162                                202                                                                                     299                                                                         381                       410||                                                         
                                                                                                                                 100K                                                                                                                                                                                                                                                                                      411|                                                         
                                                                                                                                                                                                                                                                                                                                                                                                                            414

Chain C from PDB  Type:PROTEIN  Length:214
                                                                                                                                                                                                                                                       
               SCOP domains d1igtc1 C:1-108 Immunoglobulin light chain kappa variable domain, VL-kappa                                  d1igtc2 C:109-214 Immunoglobulin light chain kappa constant domain, CL-kappa                               SCOP domains
               CATH domains 1igtC01 C:1-108 Immunoglobulins                                                                             1igtC02 C:109-211 Immunoglobulins                                                                      --- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee...........eeeeeee.......eeeeee......eeee.hhheee......eeee.....eeeee....hhh..eeeeee...........eeeee.......eeeee...hhhhhh.eeeeeeeee.......eeeee.........eeeee...........eeeeeeeehhhhh...eeeeeee.......eeeeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1igt C    1 DIVLTQSPSSLSASLGDTITITCHASQNINVWLSWYQQKPGNIPKLLIYKASNLHTGVPSRFSGSGSGTGFTLTISSLQPEDIATYYCQQGQSYPLTFGGGTKLEIKRADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRNEC  214
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210

Chain D from PDB  Type:PROTEIN  Length:444
 aligned with GCAA_MOUSE | P01863 from UniProtKB/Swiss-Prot  Length:330

    Alignment length:444
                                                                                                                                                  1                                                                                                                                                                                                                                                                                                                                     
                                     -         -         -         -         -         -         -         -         -         -         -        |2        12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322    
          GCAA_MOUSE      - ----------------------------------------------------------------------------------------------------------------------AKTTAPSVYPLAPVCGDTTGSSVTLGCLVKGYFPEPVTLTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVTSSTWPSQSITCNVAHPASSTKVDKKIEPRGPTIKPCPPCKCPAPNLLGGPSVFIFPPKIKDVLMISLSPIVTCVVVDVSEDDPDVQISWFVNNVEVHTAQTQTHREDYNSTLRVVSALPIQHQDWMSGKEFKCKVNNKDLPAPIERTISKPKGSVRAPQVYVLPPPEEEMTKKQVTLTCMVTDFMPEDIYVEWTNNGKTELNYKNTEPVLDSDGSYFMYSKLRVEKKNWVERNSYSCSVVHEGLHNHHTTKSFSR  326
               SCOP domains d1igtd1 D:1-114 Immunoglobulin heavy chain variable domain, VH                                                         d1igtd2 D:115-235 Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma                         d1igtd3 D:236-361 Immunoglobulin heavy chain gamma constant domain 2, CH2-gamma                                        d1igtd4 D:363-474 Immunoglobulin heavy chain gamma constant domain 3, CH3-gamma                        SCOP domains
               CATH domains 1igtD01 D:1-114 Immunoglobulins                                                                                        1igtD02 D:115-236 Immunoglobulins                                                                        -------------1igtD03 D:250-360 Immunoglobulins                                                                       1igtD04 D:361-474 Immunoglobulins                                                                       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
     Sec.struct. author (1) ...eeee..........eeeeeee....hhh..eeeeee.....eeeeeee......eee.......eeeeeehhh.eeeeee....hhh.eeeeeee.............eee..........eeeee..........eeeeeeeeeee....eeeeehhh.....eee.........eeeeeeeeee...hhh...eeeeee....eeeeee.........................eeeee...hhhhh......eeeeeee.........-----hhh........eeeeee....eeeeeeee..hhhhhh...eeeeee.......eeeee..........eeeee...hhh....eeeeeeeee.......eeeeee.......eee............eeeeeeeehhhhh....eeeeee........eeee... Sec.struct. author (1)
     Sec.struct. author (2) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------eeeeee-------------------------------------------------------------------------------------------------------------------------------------------------------------------- Sec.struct. author (2)
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------IG_MHC -------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                1igt D    1 EVKLQESGGGLVQPGGSLKLSCATSGFTFSDYYMYWVRQTPEKRLEWVAYISNGGGSTYYPDTVKGRFTISRDNAKNTLYLQMSRLKSEDTAMYYCARHGGYYAMDYWGQGTTVTVSSAKTTAPSVYPLAPVCGDTTGSSVTLGCLVKGYFPEPVTLTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVTSSTWPSQSITCNVAHPASSTKVDKKIEPRGPTIKPCPPCKCPAPNLLGGPSVFIFPPKIKDVLMISLSPIVTCVVVDVSEDDPDVQISWFVNNVEVHTAQTQTHREDYNSTLRVVSALPIQHQDWMSGKEFKCKVNNKDLPAPIERTISKPKGSVRAPQVYVLPPPEEEMTKKQVTLTCMVTDFMPEDIYVEWTNNGKTELNYKNTEPVLDSDGSYFMYSKLRVEKKNWVERNSYSCSVVHEGLHNHHTTKSFSR  474
                                    10        20        30        40        50  |     59        69        79   |||  86        96|||||  105       115       125    || 137       147      |162      |173      |185       195|| ||  208       218    || 230 ||    242       252       262       272       282       292|||    306       318       328       338       348      |359 ||    370    || 382       392       402|  ||||417       427|||    440       450       460       470    
                                                                              52A                            82A||             97||||                           130|                  154|||    169|      180|          196| || 206|            223|   232|                                                      292|||            314|                                   355| 361|         375| ||                  402|  ||||           428||                                         
                                                                                                              82B|            100H|||                            133                   156||     171       183           198 ||  208             226    235                                                       295||             317                                    357  363          377 ||                   405  ||||            430|                                         
                                                                                                               82C             100I||                                                   157|                               200|                                                                                    296|                                                                        379|                      408|||             433                                         
                                                                                                                                100J|                                                    162                                202                                                                                     299                                                                         381                       410||                                                         
                                                                                                                                 100K                                                                                                                                                                                                                                                                                      411|                                                         
                                                                                                                                                                                                                                                                                                                                                                                                                            414

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 '\|'

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Sandwich (5577)

Topology: Immunoglobulin-like (3897)

Homologous Superfamily: Immunoglobulins (2282)

House mouse (Mus musculus) (616)

1a	1igtA02	A:109-211
1b	1igtB02	B:115-236
1c	1igtD02	D:115-236
1d	1igtB04	B:361-474
1e	1igtD04	D:361-474
1f	1igtB03	B:250-360
1g	1igtD03	D:250-360
1h	1igtB01	B:1-114
1i	1igtD01	D:1-114
1j	1igtC02	C:109-211
1k	1igtA01	A:1-108
1l	1igtC01	C:1-108

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

Asymmetric/Biological Unit(hide GO term definitions)

Chain B,D (GCAA_MOUSE | P01863)

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: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: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: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.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
		Glu B:150 - Pro B:151	[ RasMol ]
		Glu D:150 - Pro D:151	[ RasMol ]
		Met B:396 - Pro B:397	[ RasMol ]
		Met D:396 - Pro D:397	[ RasMol ]
		Phe B:148 - Pro B:149	[ RasMol ]
		Phe D:148 - Pro D:149	[ RasMol ]
		Ser A:7 - Pro A:8	[ RasMol ]
		Ser C:7 - Pro C:8	[ RasMol ]
		Tyr A:140 - Pro A:141	[ RasMol ]
		Tyr A:94 - Pro A:95	[ RasMol ]
		Tyr C:140 - Pro C:141	[ RasMol ]
		Tyr C:94 - Pro C:95	[ RasMol ]

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	1igt
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(no "Related Entries Specified in the PDB File" available for 1IGT)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (6, 18)

Sites (18, 18)

SS Bonds (17, 17)

Cis Peptide Bonds (12, 12)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 2)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (6, 12)

CATH Domains (1, 12)

Pfam Domains (0, 0)

Gene Ontology (12, 12)

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File