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(-) Description

Title :  P1.2 SEROSUBTYPE ANTIGEN DERIVED FROM N. MENINGITIDIS PORA IN COMPLEX WITH FAB FRAGMENT
 
Authors :  C. Tzitzilonis, S. M. Prince, R. F. Collins, M. C. J. Maiden, I. M. Feaver J. P. Derrick
Date :  12 Feb 04  (Deposition) - 15 Jun 05  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A,B,H,K,L,M,P,Q
Biol. Unit 1:  A,H,L,P  (1x)
Biol. Unit 2:  B,K,M,Q  (1x)
Keywords :  Immune System, Antibody/Complex, Fab, Immunoglobulin, Protein G, Pora, Antibody, Igb (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  C. Tzitzilonis, S. M. Prince, R. F. Collins, M. Achtman, I. M. Feavers, M. C. J. Maiden, J. P. Derrick
Structural Variation And Immune Recognition Of The P1. 2 Subtype Meningococcal Antigen.
Proteins: Struct. , Funct. , V. 62 947 2005 Bioinf.
PubMed-ID: 16470851  |  Reference-DOI: 10.1002/PROT.20800

(-) Compounds

Molecule 1 - ANTIBODY
    ChainsK, L
    FragmentRESIDUES 3-214 (FAB FRAGMENT, LIGHT CHAIN)
    Organism CommonMOUSE
    Organism ScientificMUS MUSCULUS
    Organism Taxid10090
    Other DetailsHYBRIDOMA
 
Molecule 2 - ANTIBODY
    ChainsH, M
    FragmentRESIDUES 1-215 (FAB FRAGMENT, HEAVY CHAIN)
    Organism CommonMOUSE
    Organism ScientificMUS MUSCULUS
    Organism Taxid10090
 
Molecule 3 - PROTEIN G-PRIME
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    FragmentRESIDUES 56-118 (DOMAIN II)
    Organism ScientificSTREPTOCOCCUS SP.
    Organism Taxid1306
    Other DetailsHYBRIDOMA
 
Molecule 4 - CLASS 1 OUTER MEMBRANE PROTEIN VARIABLE REGION 2
    ChainsP, Q
    FragmentRESIDUES 16-28
    Organism ScientificNEISSERIA MENINGITIDIS
    Organism Taxid487
    Other DetailsRAISED AGAINST THE P1.2 SEROSUBTYPE ANTIGEN SEQUENCE FROM THE PORA PROTEIN FROM NEISSERI MENINGITIDIS
    SyntheticYES

 Structural Features

(-) Chains, Units

  12345678
Asymmetric Unit ABHKLMPQ
Biological Unit 1 (1x)A H L P 
Biological Unit 2 (1x) B K M Q

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1UWX)

(-) Sites  (0, 0)

(no "Site" information available for 1UWX)

(-) SS Bonds  (8, 8)

Asymmetric Unit
No.Residues
1H:22 -H:92
2H:140 -H:195
3K:25 -K:90
4K:135 -K:195
5L:25 -L:90
6L:135 -L:195
7M:22 -M:92
8M:140 -M:195

(-) Cis Peptide Bonds  (12, 12)

Asymmetric Unit
No.Residues
1Phe H:146 -Pro H:147
2Glu H:148 -Pro H:149
3Trp H:188 -Pro H:189
4Thr K:9 -Pro K:10
5Thr K:95A-Pro K:95B
6Tyr K:141 -Pro K:142
7Thr L:9 -Pro L:10
8Thr L:95A-Pro L:95B
9Tyr L:141 -Pro L:142
10Phe M:146 -Pro M:147
11Glu M:148 -Pro M:149
12Trp M:188 -Pro M:189

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 2)

Asymmetric Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IG_MHCPS00290 Immunoglobulins and major histocompatibility complex proteins signature.IGKC_MOUSE84-90
 
  2K:193-199
L:193-199
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IG_MHCPS00290 Immunoglobulins and major histocompatibility complex proteins signature.IGKC_MOUSE84-90
 
  1-
L:193-199
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IG_MHCPS00290 Immunoglobulins and major histocompatibility complex proteins signature.IGKC_MOUSE84-90
 
  1K:193-199
-

(-) Exons   (0, 0)

(no "Exon" information available for 1UWX)

(-) Sequences/Alignments

Asymmetric 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:58
 aligned with Q54181_STRSG | Q54181 from UniProtKB/TrEMBL  Length:185

    Alignment length:58
                                    68        78        88        98       108        
        Q54181_STRSG     59 VTTYKLVINGKTLKGETTTEAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTEK  116
               SCOP domains d1uwxa_ A: automated matches                               SCOP domains
               CATH domains 1uwxA00 A:5-62  [code=3.10.20.10, no name defined]         CATH domains
               Pfam domains ---------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeeeee...eeeeeeeee.hhhhhhhhhhhhhhhh....eeeee....eeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------- Transcript
                1uwx A    5 VTTYKLVINGKTLKGETTTKAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTEK   62
                                    14        24        34        44        54        

Chain A from PDB  Type:PROTEIN  Length:58
 aligned with SPG2_STRSG | P19909 from UniProtKB/Swiss-Prot  Length:593

    Alignment length:58
                                   380       390       400       410       420        
          SPG2_STRSG    371 VTTYKLVINGKTLKGETTTEAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTEK  428
               SCOP domains d1uwxa_ A: automated matches                               SCOP domains
               CATH domains 1uwxA00 A:5-62  [code=3.10.20.10, no name defined]         CATH domains
               Pfam domains ---------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeeeee...eeeeeeeee.hhhhhhhhhhhhhhhh....eeeee....eeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------- Transcript
                1uwx A    5 VTTYKLVINGKTLKGETTTKAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTEK   62
                                    14        24        34        44        54        

Chain B from PDB  Type:PROTEIN  Length:60
 aligned with Q54181_STRSG | Q54181 from UniProtKB/TrEMBL  Length:185

    Alignment length:60
                                    68        78        88        98       108       118
        Q54181_STRSG     59 VTTYKLVINGKTLKGETTTEAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTEKPE  118
               SCOP domains d1uwxb_ B: automated matches                                 SCOP domains
               CATH domains 1uwxB00 B:5-64  [code=3.10.20.10, no name defined]           CATH domains
           Pfam domains (1) --IgG_binding_B-1uwxB01 B:7-61                           --- Pfam domains (1)
           Pfam domains (2) --IgG_binding_B-1uwxB02 B:7-61                           --- Pfam domains (2)
         Sec.struct. author .eeeeeeee...eeeeeeeee.hhhhhhhhhhhhhhhh....eeeee....eeeee.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------ Transcript
                1uwx B    5 VTTYKLVINGKTLKGETTTKAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTEKPE   64
                                    14        24        34        44        54        64

Chain B from PDB  Type:PROTEIN  Length:60
 aligned with SPG2_STRSG | P19909 from UniProtKB/Swiss-Prot  Length:593

    Alignment length:60
                                   380       390       400       410       420       430
          SPG2_STRSG    371 VTTYKLVINGKTLKGETTTEAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTEKPE  430
               SCOP domains d1uwxb_ B: automated matches                                 SCOP domains
               CATH domains 1uwxB00 B:5-64  [code=3.10.20.10, no name defined]           CATH domains
           Pfam domains (1) --IgG_binding_B-1uwxB01 B:7-61                           --- Pfam domains (1)
           Pfam domains (2) --IgG_binding_B-1uwxB02 B:7-61                           --- Pfam domains (2)
         Sec.struct. author .eeeeeeee...eeeeeeeee.hhhhhhhhhhhhhhhh....eeeee....eeeee.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------ Transcript
                1uwx B    5 VTTYKLVINGKTLKGETTTKAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTEKPE   64
                                    14        24        34        44        54        64

Chain H from PDB  Type:PROTEIN  Length:218
                                                                                                                                                                                                                                                           
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------d1uwxh1 H:115-215 Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma                 SCOP domains
               CATH domains 1uwxH01 H:2-114 Immunoglobulins                                                                                            1uwxH02 H:115-215 Immunoglobulins                                                               CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeee...eee.....eeeeeeee..hhhhheeeeeee.....eeeeeee......eee.hhhh..eeeeeehhh.eeeeee...hhhhheeeeeeeee........eeeee...eeeee........eeeee....eeeeeeeeeee.....eeee.hhh....eee...ee....eeeeeeeeee.........eeeeeehhhheeeeee...... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1uwx H    2 VQLQQSGPELKKPGETVKLSCKASGYTFTNFGLNWMKQAPGKGLKWMGWINTYTGESTYADDFKGRFAFSLETSASTAYLQINNVKNEDTATYFCARGFYYYGSRYFYFDYWGQGTTLTVSSAKTTAPSVYPLAPVSSVTLGCLVKGYFPEPVTLTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVTSSTWPSQSITCNVAHPASSTKVDKKIEPRGP  215
                                    11        21        31        41        51 |      60        70        80  |||   87        97   ||||101       111       121     ||137       147       157       167       177       187       197       207        
                                                                             52A                            82A||               100A|||||                        127|                                                                                 
                                                                                                             82B|                100B||||                         134                                                                                 
                                                                                                              82C                 100C|||                                                                                                             
                                                                                                                                   100D||                                                                                                             
                                                                                                                                    100E|                                                                                                             
                                                                                                                                     100F                                                                                                             

Chain K from PDB  Type:PROTEIN  Length:212
 aligned with IGKC_MOUSE | P01837 from UniProtKB/Swiss-Prot  Length:106

    Alignment length:212
                                                                                                                                        1                                                                                                       
                                     -         -         -         -         -         -         -         -         -         -        |2        12        22        32        42        52        62        72        82        92       102  
          IGKC_MOUSE      - ------------------------------------------------------------------------------------------------------------ADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRN  104
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 1uwxK01 K:3-109 Immunoglobulins                                                                             1uwxK02 K:110-213 Immunoglobulins                                                                        CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...ee....eeee.....eeeeeee.......eeeeee......eeeee...ee.......eeeeee..eeeeee...hhhhh.eeeeee...........eeeee.......eeeee..hhhhhhh.eeeeeeeeeee.....eeeeee..eee...eeeee.........eeeeeeeeeehhhhh...eeeeeee.......eeeeee.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------IG_MHC -------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1uwx K    3 GIVMTQTPASQSASLGESVTITCLASQTIGTWLAWYQQKPGKSPQLLIYAATSLADGVPSRFSGSGSGTKFSFKISSLQAEDFVSYYCQQLSSTPYTFGGGTKLEIKRADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGKERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRN  213
                                    12        22        32        42        52        62        72        82        92   || |102    |  111       121       131       141       151       161       171       181       191       201       211  
                                                                                                                       95A| ||   106A                                                                                                           
                                                                                                                        95B ||                                                                                                                  
                                                                                                                           97|                                                                                                                  
                                                                                                                           100                                                                                                                  

Chain L from PDB  Type:PROTEIN  Length:212
 aligned with IGKC_MOUSE | P01837 from UniProtKB/Swiss-Prot  Length:106

    Alignment length:212
                                                                                                                                        1                                                                                                       
                                     -         -         -         -         -         -         -         -         -         -        |2        12        22        32        42        52        62        72        82        92       102  
          IGKC_MOUSE      - ------------------------------------------------------------------------------------------------------------ADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRN  104
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 1uwxL01 L:3-109 Immunoglobulins                                                                             1uwxL02 L:110-213 Immunoglobulins                                                                        CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...ee....eeee.....eeeeeee.......eeeeee......eeeee...ee.......eeeeee..eeeeee...hhhhh.eeeeee...........eeeee.......eeeee..hhhhhhh.eeeeeeeeeee.....eeeeee..eee...eeeee.........eeeeeeeeeehhhhh...eeeeeee.......eeeeee.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------IG_MHC -------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1uwx L    3 GIVMTQTPASQSASLGESVTITCLASQTIGTWLAWYQQKPGKSPQLLIYAATSLADGVPSRFSGSGSGTKFSFKISSLQAEDFVSYYCQQLSSTPYTFGGGTKLEIKRADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGKERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRN  213
                                    12        22        32        42        52        62        72        82        92   || |102    |  111       121       131       141       151       161       171       181       191       201       211  
                                                                                                                       95A| ||   106A                                                                                                           
                                                                                                                        95B ||                                                                                                                  
                                                                                                                           97|                                                                                                                  
                                                                                                                           100                                                                                                                  

Chain M from PDB  Type:PROTEIN  Length:218
                                                                                                                                                                                                                                                           
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------d1uwxm1 M:115-215 Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma                 SCOP domains
               CATH domains 1uwxM01 M:2-114 Immunoglobulins                                                                                            1uwxM02 M:115-215 Immunoglobulins                                                               CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeee...eee.....eeeeeeee..hhhhheeeeeee......eeeeee......eee.hhhh..eeeeeehhh.eeeeee...hhhhheeeeeeeee........eeeee...eeeee........eeeee....eeeeeeeeeee.....eeee.hhh....eee...ee....eeeeeeeeee.........eeeeeehhhheeeeee...... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1uwx M    2 VQLQQSGPELKKPGETVKLSCKASGYTFTNFGLNWMKQAPGKGLKWMGWINTYTGESTYADDFKGRFAFSLETSASTAYLQINNVKNEDTATYFCARGFYYYGSRYFYFDYWGQGTTLTVSSAKTTAPSVYPLAPVSSVTLGCLVKGYFPEPVTLTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVTSSTWPSQSITCNVAHPASSTKVDKKIEPRGP  215
                                    11        21        31        41        51 |      60        70        80  |||   87        97   ||||101       111       121     ||137       147       157       167       177       187       197       207        
                                                                             52A                            82A||               100A|||||                        127|                                                                                 
                                                                                                             82B|                100B||||                         134                                                                                 
                                                                                                              82C                 100C|||                                                                                                             
                                                                                                                                   100D||                                                                                                             
                                                                                                                                    100E|                                                                                                             
                                                                                                                                     100F                                                                                                             

Chain P from PDB  Type:PROTEIN  Length:13
 aligned with Q51220_NEIME | Q51220 from UniProtKB/TrEMBL  Length:50

    Alignment length:13
                                    25   
        Q51220_NEIME     16 HFVQQTPKSQPTL   28
               SCOP domains ------------- SCOP domains
               CATH domains ------------- CATH domains
               Pfam domains ------------- Pfam domains
         Sec.struct. author ............. Sec.struct. author
                 SAPs(SNPs) ------------- SAPs(SNPs)
                    PROSITE ------------- PROSITE
                 Transcript ------------- Transcript
                1uwx P    1 HFVQQTPKSQPTL   13
                                    10   

Chain P from PDB  Type:PROTEIN  Length:13
 aligned with Q9JPT2_NEIME | Q9JPT2 from UniProtKB/TrEMBL  Length:385

    Alignment length:13
                                   198   
        Q9JPT2_NEIME    189 HFVQQTPKSQPTL  201
               SCOP domains ------------- SCOP domains
               CATH domains ------------- CATH domains
               Pfam domains ------------- Pfam domains
         Sec.struct. author ............. Sec.struct. author
                 SAPs(SNPs) ------------- SAPs(SNPs)
                    PROSITE ------------- PROSITE
                 Transcript ------------- Transcript
                1uwx P    1 HFVQQTPKSQPTL   13
                                    10   

Chain Q from PDB  Type:PROTEIN  Length:13
 aligned with Q51220_NEIME | Q51220 from UniProtKB/TrEMBL  Length:50

    Alignment length:13
                                    25   
        Q51220_NEIME     16 HFVQQTPKSQPTL   28
               SCOP domains ------------- SCOP domains
               CATH domains ------------- CATH domains
           Pfam domains (1) Porin_1-1uwxQ Pfam domains (1)
           Pfam domains (2) Porin_1-1uwxQ Pfam domains (2)
         Sec.struct. author ............. Sec.struct. author
                 SAPs(SNPs) ------------- SAPs(SNPs)
                    PROSITE ------------- PROSITE
                 Transcript ------------- Transcript
                1uwx Q    1 HFVQQTPKSQPTL   13
                                    10   

Chain Q from PDB  Type:PROTEIN  Length:13
 aligned with Q9JPT2_NEIME | Q9JPT2 from UniProtKB/TrEMBL  Length:385

    Alignment length:13
                                   198   
        Q9JPT2_NEIME    189 HFVQQTPKSQPTL  201
               SCOP domains ------------- SCOP domains
               CATH domains ------------- CATH domains
           Pfam domains (1) Porin_1-1uwxQ Pfam domains (1)
           Pfam domains (2) Porin_1-1uwxQ Pfam domains (2)
         Sec.struct. author ............. Sec.struct. author
                 SAPs(SNPs) ------------- SAPs(SNPs)
                    PROSITE ------------- PROSITE
                 Transcript ------------- Transcript
                1uwx Q    1 HFVQQTPKSQPTL   13
                                    10   

   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  (2, 4)

Asymmetric Unit

(-) CATH Domains  (2, 10)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)
2a1uwxK02K:110-213
2b1uwxL02L:110-213
2c1uwxK01K:3-109
2d1uwxL01L:3-109
2e1uwxH02H:115-215
2f1uwxM02M:115-215
2g1uwxH01H:2-114
2h1uwxM01M:2-114

(-) Pfam Domains  (2, 4)

Asymmetric Unit
(-)
Clan: MBB (97)

(-) Gene Ontology  (26, 28)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q54181_STRSG | Q54181)
cellular component
    GO:0005618    cell wall    The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.

Chain A,B   (SPG2_STRSG | P19909)
molecular function
    GO:0019864    IgG binding    Interacting selectively and non-covalently with an immunoglobulin of an IgG isotype.
biological process
    GO:0009405    pathogenesis    The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
cellular component
    GO:0005618    cell wall    The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.
    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:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

Chain K,L   (IGKC_MOUSE | P01837)
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:0030183    B cell differentiation    The process in which a precursor cell type acquires the specialized features of a B cell. A B cell is a lymphocyte of B lineage with the phenotype CD19-positive and capable of B cell mediated immunity.
    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.
    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 P,Q   (Q9JPT2_NEIME | Q9JPT2)
molecular function
    GO:0015288    porin activity    Catalysis of the transfer of substances, sized less than 1000 Da, from one side of the membrane to the other. The transmembrane portions of porins consist exclusively of beta-strands which form a beta-barrel. They are found in the outer membranes of Gram-negative bacteria, mitochondria, plastids and possibly acid-fast Gram-positive bacteria.
biological process
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0055085    transmembrane transport    The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0009279    cell outer membrane    A lipid bilayer that forms the outermost membrane of the cell envelope; enriched in polysaccharide and protein; the outer leaflet of the membrane contains specific lipopolysaccharide structures.
    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:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0046930    pore complex    Any small opening in a membrane that allows the passage of gases and/or liquids.

Chain P,Q   (Q51220_NEIME | Q51220)

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 Related Entries

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

UniProtKB/Swiss-Prot
        IGKC_MOUSE | P0183715c8 1a0q 1a3l 1ahw 1ai1 1aif 1c12 1cf8 1cfn 1cfq 1cfs 1cft 1cic 1ck0 1ct8 1dqj 1dqm 1dqq 1e4w 1e4x 1ehl 1emt 1f11 1fai 1fbi 1fdl 1fe8 1fgn 1fj1 1fl3 1fns 1frg 1fsk 1gpo 1hh6 1hh9 1hi6 1i8m 1iai 1igy 1jnl 1jnn 1jrh 1k4c 1k4d 1kb5 1kc5 1kcr 1kcs 1kcu 1kcv 1ken 1kno 1lo0 1mf2 1mh5 1mlb 1mlc 1n5y 1n6q 1nby 1nbz 1ndg 1ndm 1oak 1ob1 1orq 1ors 1osp 1ots 1ott 1otu 1p2c 1p7k 1psk 1q9o 1q9w 1qgc 1r0a 1r24 1r3i 1r3j 1r3k 1r3l 1rih 1ruq 1rur 1s5h 1seq 1t03 1t4k 1ub5 1ub6 1xf2 1xf3 1xf4 1xgp 1xgq 1xgu 25c8 2a6d 2a6k 2adf 2adj 2ajs 2aju 2ajv 2ajx 2ajy 2ajz 2ak1 2bob 2boc 2ck0 2f19 2fr4 2g5b 2h8p 2hg5 2hrp 2mpa 2nr6 2q76 2r1w 2r1y 2r23 2r2b 2uyl 2v17 2v7h 2vc2 2vdk 2vdl 2vdm 2vdn 2vdo 2vdp 2vdq 2vdr 2vl5 2vq1 2vwe 2w60 2w65 2w9d 2w9e 2z91 2z92 2z93 2zjs 35c8 3bae 3bgf 3bkc 3bkj 3bkm 3bpc 3bqu 3bsz 3bt2 3bz4 3c5s 3c6s 3cfb 3cfc 3cfd 3cfe 3ck0 3cle 3clf 3cmo 3cvh 3cvi 3d9a 3ejz 3eot 3f7v 3f7y 3fb6 3hfm 4kk5 4kk8 4qnp 4zxb 6fab
        Q54181_STRSG | Q541811qkz
        SPG2_STRSG | P199091fcc 1fcl 1fd6 1gb4 1gjs 1gjt 1ibx 1p7e 1p7f 1qkz 1zxh 2gi9 2i2y 2i38 2igg 2jsv 2ju6 2khu 2khw 2kn4 2kq4 2kwd 2lum 2n9k 2n9l 2oed 2on8 2onq 2plp 2qmt 3fil 3ui3 3v3x 4oza 4ozb 4ozc 4wh4 5bmg 5bmh 5bmi 5hfy 5hg2 5hi1
UniProtKB/TrEMBL
        Q54181_STRSG | Q541812oed

(-) Related Entries Specified in the PDB File

1qkz FAB FRAGMENT (MN14C11.6) IN COMPLEX WITH A PEPTIDE ANTIGEN DERIVEDFROM NEISSERIA MENINGITIDIS P1.7 SEROSUBTYPE ANTIGEN AND DOMAIN IIFROM STREPTOCOCCAL PROTEIN G