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(-) Description

Title :  CRYSTAL STRUCTURE OF BRUTON'S TYROSINE KINASE DOMAIN
 
Authors :  C. Mao, M. Zhou, F. M. Uckun
Date :  28 Sep 01  (Deposition) - 26 Jun 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.10
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Bruton Tryosine Kinase, Kinase Domain, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  C. Mao, M. Zhou, F. M. Uckun
Crystal Structure Of Bruton'S Tyrosine Kinase Domain Suggests A Novel Pathway For Activation And Provides Insights Into The Molecular Basis Of X-Linked Agammaglobulinemia.
J. Biol. Chem. V. 276 41435 2001
PubMed-ID: 11527964  |  Reference-DOI: 10.1074/JBC.M104828200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TYROSINE-PROTEIN KINASE BTK
    ChainsA, B
    EC Number2.7.1.112
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    FragmentBRUTON'S TYROSINE KINASE DOMAIN
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1K2P)

(-) Sites  (0, 0)

(no "Site" information available for 1K2P)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1K2P)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1K2P)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (69, 138)

Asymmetric/Biological Unit (69, 138)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_006239L408PBTK_HUMANDisease (XLA)128621198A/BL408P
02UniProtVAR_008313G414RBTK_HUMANDisease (XLA)  ---A/BG414R
03UniProtVAR_006240Y418HBTK_HUMANDisease (XLA)144079566A/BY418H
04UniProtVAR_006241I429NBTK_HUMANDisease (XLA)  ---A/BI429N
05UniProtVAR_006242K430EBTK_HUMANDisease (XLA)128620184A/BK430E
06UniProtVAR_008314K430RBTK_HUMANDisease (XLA)  ---A/BK430R
07UniProtVAR_008315E445DBTK_HUMANDisease (XLA)  ---A/BE445D
08UniProtVAR_008316G462DBTK_HUMANDisease (XLA)  ---A/BG462D
09UniProtVAR_008317G462VBTK_HUMANDisease (XLA)  ---A/BG462V
10UniProtVAR_006243Y476DBTK_HUMANDisease (XLA)  ---A/BY476D
11UniProtVAR_006244M477RBTK_HUMANDisease (XLA)  ---A/BM477R
12UniProtVAR_074309C481SBTK_HUMANUnclassified  ---A/BC481S
13UniProtVAR_006245C502FBTK_HUMANDisease (XLA)  ---A/BC502F
14UniProtVAR_006246C502WBTK_HUMANDisease (XLA)41310709A/BC502W
15UniProtVAR_006247C506RBTK_HUMANDisease (XLA)128621200A/BC506R
16UniProtVAR_006248C506YBTK_HUMANDisease (XLA)  ---A/BC506Y
17UniProtVAR_008318A508DBTK_HUMANDisease (XLA)  ---A/BA508D
18UniProtVAR_008319M509IBTK_HUMANDisease (XLA)  ---A/BM509I
19UniProtVAR_006249M509VBTK_HUMANDisease (XLA)  ---A/BM509V
20UniProtVAR_008961L512PBTK_HUMANDisease (XLA)  ---A/BL512P
21UniProtVAR_008962L512QBTK_HUMANDisease (XLA)  ---A/BL512Q
22UniProtVAR_008320L518RBTK_HUMANDisease (XLA)  ---A/BL518R
23UniProtVAR_006251R520QBTK_HUMANDisease (XLA)128621202A/BR520Q
24UniProtVAR_008321D521GBTK_HUMANDisease (XLA)  ---A/BD521G
25UniProtVAR_006252D521HBTK_HUMANDisease (XLA)  ---A/BD521H
26UniProtVAR_006253D521NBTK_HUMANDisease (XLA)  ---A/BD521N
27UniProtVAR_008322A523EBTK_HUMANDisease (XLA)  ---A/BA523E
28UniProtVAR_008323R525GBTK_HUMANDisease (XLA)  ---A/BR525G
29UniProtVAR_006254R525PBTK_HUMANDisease (XLA)  ---A/BR525P
30UniProtVAR_006255R525QBTK_HUMANDisease (XLA)128620183A/BR525Q
31UniProtVAR_006256N526KBTK_HUMANDisease (XLA)  ---A/BN526K
32UniProtVAR_008324V535FBTK_HUMANDisease (XLA)  ---A/BV535F
33UniProtVAR_006257L542PBTK_HUMANDisease (XLA)128621203A/BL542P
34UniProtVAR_008963R544GBTK_HUMANDisease (XLA)  ---A/BR544G
35UniProtVAR_006258R544KBTK_HUMANDisease (XLA)  ---A/BR544K
36UniProtVAR_008325F559SBTK_HUMANDisease (XLA)  ---A/BF559S
37UniProtVAR_006259R562PBTK_HUMANDisease (XLA)28935176A/BR562P
38UniProtVAR_006260R562WBTK_HUMANDisease (XLA)128621204A/BR562W
39UniProtVAR_008326W563LBTK_HUMANDisease (XLA)  ---A/BW563L
40UniProtVAR_006261E567KBTK_HUMANDisease (XLA)  ---A/BE567K
41UniProtVAR_008964S578YBTK_HUMANDisease (XLA)  ---A/BS578Y
42UniProtVAR_006262W581RBTK_HUMANDisease (XLA)128621205A/BW581R
43UniProtVAR_006263A582VBTK_HUMANDisease (XLA)  ---A/BA582V
44UniProtVAR_008327F583SBTK_HUMANDisease (XLA)  ---A/BF583S
45UniProtVAR_006264M587LBTK_HUMANDisease (XLA)  ---A/BM587L
46UniProtVAR_008328E589DBTK_HUMANDisease (XLA)  ---A/BE589D
47UniProtVAR_006265E589GBTK_HUMANDisease (XLA)128621206A/BE589G
48UniProtVAR_008965E589KBTK_HUMANDisease (XLA)  ---A/BE589K
49UniProtVAR_006267S592PBTK_HUMANDisease (XLA)  ---A/BS592P
50UniProtVAR_006268G594EBTK_HUMANDisease (XLA)  ---A/BG594E
51UniProtVAR_006269G594RBTK_HUMANDisease (XLA)  ---A/BG594R
52UniProtVAR_006270Y598CBTK_HUMANDisease (XLA)  ---A/BY598C
53UniProtVAR_006271A607DBTK_HUMANDisease (XLA)128621208A/BA607D
54UniProtVAR_006272G613DBTK_HUMANDisease (XLA)128621209A/BG613D
55UniProtVAR_008330P619ABTK_HUMANDisease (XLA)  ---A/BP619A
56UniProtVAR_006273P619SBTK_HUMANDisease (XLA)  ---A/BP619S
57UniProtVAR_008331P619TBTK_HUMANDisease (XLA)  ---A/BP619T
58UniProtVAR_008332A622PBTK_HUMANDisease (XLA)  ---A/BA622P
59UniProtVAR_008333V626GBTK_HUMANDisease (XLA)  ---A/BV626G
60UniProtVAR_006274M630IBTK_HUMANPolymorphism  ---A/BM630I
61UniProtVAR_006275M630KBTK_HUMANDisease (XLA)128621210A/BM630K
62UniProtVAR_008334M630TBTK_HUMANDisease (XLA)  ---A/BM630T
63UniProtVAR_006276C633YBTK_HUMANDisease (XLA)  ---A/BC633Y
64UniProtVAR_006277R641CBTK_HUMANDisease (XLA)  ---A/BR641C
65UniProtVAR_006278R641HBTK_HUMANDisease (XLA)  ---A/BR641H
66UniProtVAR_008335F644LBTK_HUMANDisease (XLA)  ---A/BF644L
67UniProtVAR_006279F644SBTK_HUMANDisease (XLA)  ---A/BF644S
68UniProtVAR_006280L647PBTK_HUMANDisease (XLA)  ---A/BL647P
69UniProtVAR_006281L652PBTK_HUMANDisease (XLA)128622212A/BL652P

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (2, 4)

Asymmetric/Biological Unit (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PROTEIN_KINASE_ATPPS00107 Protein kinases ATP-binding region signature.BTK_HUMAN408-430
 
  2A:408-430
B:408-430
2PROTEIN_KINASE_TYRPS00109 Tyrosine protein kinases specific active-site signature.BTK_HUMAN517-529
 
  2A:517-529
B:517-529

(-) Exons   (6, 12)

Asymmetric/Biological Unit (6, 12)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1bENST000003087311bENSE00001821870X:100641183-100641050134BTK_HUMAN-00--
1.3ENST000003087313ENSE00002149458X:100630302-100630132171BTK_HUMAN1-47470--
1.4aENST000003087314aENSE00001643950X:100629622-10062952499BTK_HUMAN48-80330--
1.5ENST000003087315ENSE00001646803X:100626689-10062662169BTK_HUMAN81-103230--
1.6ENST000003087316ENSE00001698702X:100625067-10062498682BTK_HUMAN104-131280--
1.7bENST000003087317bENSE00001643964X:100617677-100617549129BTK_HUMAN131-174440--
1.8bENST000003087318bENSE00001601394X:100617228-10061716168BTK_HUMAN174-196230--
1.9ENST000003087319ENSE00001608013X:100615743-100615556188BTK_HUMAN197-259630--
1.10ENST0000030873110ENSE00001712685X:100615138-10061507663BTK_HUMAN259-280220--
1.11ENST0000030873111ENSE00001801955X:100614335-10061428155BTK_HUMAN280-298190--
1.12ENST0000030873112ENSE00000673984X:100613684-10061360580BTK_HUMAN299-325270--
1.13bENST0000030873113bENSE00000673983X:100613425-100613298128BTK_HUMAN325-368440--
1.14bENST0000030873114bENSE00000673982X:100612571-10061249775BTK_HUMAN368-393260--
1.15aENST0000030873115aENSE00000673981X:100611943-100611772172BTK_HUMAN393-450582A:397-450
B:397-450
54
54
1.16bENST0000030873116bENSE00000673980X:100611256-100611040217BTK_HUMAN450-522732A:450-522
B:450-522
73
73
1.17ENST0000030873117ENSE00000673977X:100609682-10060961865BTK_HUMAN523-544222A:523-544
B:523-544
22
22
1.18bENST0000030873118bENSE00001780523X:100608976-100608858119BTK_HUMAN544-584412A:544-584
B:544-584
41
41
1.19bENST0000030873119bENSE00001702496X:100608339-100608182158BTK_HUMAN584-636532A:584-636
B:584-636
53
53
1.20bENST0000030873120bENSE00001855631X:100604944-100604438507BTK_HUMAN637-659232A:637-654
B:637-654
18
18

(-) 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:258
 aligned with BTK_HUMAN | Q06187 from UniProtKB/Swiss-Prot  Length:659

    Alignment length:258
                                   406       416       426       436       446       456       466       476       486       496       506       516       526       536       546       556       566       576       586       596       606       616       626       636       646        
            BTK_HUMAN   397 IDPKDLTFLKELGTGQFGVVKYGKWRGQYDVAIKMIKEGSMSEDEFIEEAKVMMNLSHEKLVQLYGVCTKQRPIFIITEYMANGCLLNYLREMRHRFQTQQLLEMCKDVCEAMEYLESKQFLHRDLAARNCLVNDQGVVKVSDFGLSRYVLDDEYTSSVGSKFPVRWSPPEVLMYSKFSSKSDIWAFGVLMWEIYSLGKMPYERFTNSETAEHIAQGLRLYRPHLASEKVYTIMYSCWHEKADERPTFKILLSNILDV 654
               SCOP domains d1k2pa_ A: Bruton's tyrosine kinase (Btk)                                                                                                                                                                                                                          SCOP domains
               CATH domains 1k2pA01 A:397-476 Phosphorylase Kinase; domain 1                                1k2pA02 A:477-654 Transferase(Phosphotransferase) domain 1                                                                                                                         CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .............ee..eeeeeeee................hhhhhhhhhhhhhh........eeeee.....eeeeee....eehhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhh.......hhh.eee.....eee......................hhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhh.........hhhhhhhhhhh..........hhhhhhhhhhh...hhhhh.hhhhhhhhhhh. Sec.struct. author
             SAPs(SNPs) (1) -----------P-----R---H----------NE--------------D----------------D-------------DR---S--------------------F---R-DI--P-----R-QG-E-GK--------F------P-G--------------S--PL---K----------Y--RVS---L-D--P-E---C--------D-----D-----A--P---G---I--Y-------C--L--P----P-- SAPs(SNPs) (1)
             SAPs(SNPs) (2) ---------------------------------R-------------------------------V---------------------------------------W---Y--V--Q--------H---P------------------K-----------------W--------------------------G----R------------------------S----------K----------H--S---------- SAPs(SNPs) (2)
             SAPs(SNPs) (3) ----------------------------------------------------------------------------------------------------------------------------N---Q---------------------------------------------------------------K-----------------------------T----------T------------------------ SAPs(SNPs) (3)
                    PROSITE -----------PROTEIN_KINASE_ATP     --------------------------------------------------------------------------------------PROTEIN_KINAS----------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.15a  PDB: A:397-450 UniProt: 393-450           ------------------------------------------------------------------------Exon 1.17             ---------------------------------------Exon 1.19b  PDB: A:584-636 UniProt: 584-636          Exon 1.20b         Transcript 1 (1)
           Transcript 1 (2) -----------------------------------------------------Exon 1.16b  PDB: A:450-522 UniProt: 450-522                              ---------------------Exon 1.18b  PDB: A:544-584               ---------------------------------------------------------------------- Transcript 1 (2)
                 1k2p A 397 IDPKDLTFLKELGTGQFGVVKYGKWRGQYDVAIKMIKEGSMSEDEFIEEAKVMMNLSHEKLVQLYGVCTKQRPIFIITEYMANGCLLNYLREMRHRFQTQQLLEMCKDVCEAMEYLESKQFLHRDLAARNCLVNDQGVVKVSDFGLSRYVLDDEYTSSVGSKFPVRWSPPEVLMYSKFSSKSDIWAFGVLMWEIYSLGKMPYERFTNSETAEHIAQGLRLYRPHLASEKVYTIMYSCWHEKADERPTFKILLSNILDV 654
                                   406       416       426       436       446       456       466       476       486       496       506       516       526       536       546       556       566       576       586       596       606       616       626       636       646        

Chain B from PDB  Type:PROTEIN  Length:258
 aligned with BTK_HUMAN | Q06187 from UniProtKB/Swiss-Prot  Length:659

    Alignment length:258
                                   406       416       426       436       446       456       466       476       486       496       506       516       526       536       546       556       566       576       586       596       606       616       626       636       646        
            BTK_HUMAN   397 IDPKDLTFLKELGTGQFGVVKYGKWRGQYDVAIKMIKEGSMSEDEFIEEAKVMMNLSHEKLVQLYGVCTKQRPIFIITEYMANGCLLNYLREMRHRFQTQQLLEMCKDVCEAMEYLESKQFLHRDLAARNCLVNDQGVVKVSDFGLSRYVLDDEYTSSVGSKFPVRWSPPEVLMYSKFSSKSDIWAFGVLMWEIYSLGKMPYERFTNSETAEHIAQGLRLYRPHLASEKVYTIMYSCWHEKADERPTFKILLSNILDV 654
               SCOP domains d1k2pb_ B: Bruton's tyrosine kinase (Btk)                                                                                                                                                                                                                          SCOP domains
               CATH domains 1k2pB01 B:397-476 Phosphorylase Kinase; domain 1                                1k2pB02 B:477-654 Transferase(Phosphotransferase) domain 1                                                                                                                         CATH domains
           Pfam domains (1) -----Pkinase_Tyr-1k2pB01 B:402-651                                                                                                                                                                                                                             --- Pfam domains (1)
           Pfam domains (2) -----Pkinase_Tyr-1k2pB02 B:402-651                                                                                                                                                                                                                             --- Pfam domains (2)
         Sec.struct. author ..........eeee....eeeeeee...................hhhhhhhhhh.........eeee........eeee.....hhhhhhh......hhhhhhhhhhhhhhhhhhhhhh.......hhh.eee.....eee...........................hhhhhhhh..hhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhh.........hhhhhhhhhhh...hhhhh.hhhhhhhhhhh. Sec.struct. author
             SAPs(SNPs) (1) -----------P-----R---H----------NE--------------D----------------D-------------DR---S--------------------F---R-DI--P-----R-QG-E-GK--------F------P-G--------------S--PL---K----------Y--RVS---L-D--P-E---C--------D-----D-----A--P---G---I--Y-------C--L--P----P-- SAPs(SNPs) (1)
             SAPs(SNPs) (2) ---------------------------------R-------------------------------V---------------------------------------W---Y--V--Q--------H---P------------------K-----------------W--------------------------G----R------------------------S----------K----------H--S---------- SAPs(SNPs) (2)
             SAPs(SNPs) (3) ----------------------------------------------------------------------------------------------------------------------------N---Q---------------------------------------------------------------K-----------------------------T----------T------------------------ SAPs(SNPs) (3)
                    PROSITE -----------PROTEIN_KINASE_ATP     --------------------------------------------------------------------------------------PROTEIN_KINAS----------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.15a  PDB: B:397-450 UniProt: 393-450           ------------------------------------------------------------------------Exon 1.17             ---------------------------------------Exon 1.19b  PDB: B:584-636 UniProt: 584-636          Exon 1.20b         Transcript 1 (1)
           Transcript 1 (2) -----------------------------------------------------Exon 1.16b  PDB: B:450-522 UniProt: 450-522                              ---------------------Exon 1.18b  PDB: B:544-584               ---------------------------------------------------------------------- Transcript 1 (2)
                 1k2p B 397 IDPKDLTFLKELGTGQFGVVKYGKWRGQYDVAIKMIKEGSMSEDEFIEEAKVMMNLSHEKLVQLYGVCTKQRPIFIITEYMANGCLLNYLREMRHRFQTQQLLEMCKDVCEAMEYLESKQFLHRDLAARNCLVNDQGVVKVSDFGLSRYVLDDEYTSSVGSKFPVRWSPPEVLMYSKFSSKSDIWAFGVLMWEIYSLGKMPYERFTNSETAEHIAQGLRLYRPHLASEKVYTIMYSCWHEKADERPTFKILLSNILDV 654
                                   406       416       426       436       446       456       466       476       486       496       506       516       526       536       546       556       566       576       586       596       606       616       626       636       646        

   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  (1, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (2, 4)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Clan: PKinase (934)

(-) Gene Ontology  (49, 49)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (BTK_HUMAN | Q06187)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0016301    kinase activity    Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
    GO:0008289    lipid binding    Interacting selectively and non-covalently with a lipid.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0004715    non-membrane spanning protein tyrosine kinase activity    Catalysis of the reaction: ATP + protein L-tyrosine = ADP + protein L-tyrosine phosphate by a non-membrane spanning protein.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0005547    phosphatidylinositol-3,4,5-trisphosphate binding    Interacting selectively and non-covalently with phosphatidylinositol-3,4,5-trisphosphate, a derivative of phosphatidylinositol in which the inositol ring is phosphorylated at the 3', 4' and 5' positions.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0004672    protein kinase activity    Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP.
    GO:0004713    protein tyrosine kinase activity    Catalysis of the reaction: ATP + a protein tyrosine = ADP + protein tyrosine phosphate.
    GO:0005102    receptor binding    Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
    GO:0042113    B cell activation    The change in morphology and behavior of a mature or immature B cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.
    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:0007249    I-kappaB kinase/NF-kappaB signaling    The process in which a signal is passed on to downstream components within the cell through the I-kappaB-kinase (IKK)-dependent activation of NF-kappaB. The cascade begins with activation of a trimeric IKK complex (consisting of catalytic kinase subunits IKKalpha and/or IKKbeta, and the regulatory scaffold protein NEMO) and ends with the regulation of transcription of target genes by NF-kappaB. In a resting state, NF-kappaB dimers are bound to I-kappaB proteins, sequestering NF-kappaB in the cytoplasm. Phosphorylation of I-kappaB targets I-kappaB for ubiquitination and proteasomal degradation, thus releasing the NF-kappaB dimers, which can translocate to the nucleus to bind DNA and regulate transcription.
    GO:0002755    MyD88-dependent toll-like receptor signaling pathway    Any series of molecular signals generated as a consequence of binding to a toll-like receptor where the MyD88 adaptor molecule mediates transduction of the signal. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response.
    GO:0002250    adaptive immune response    An immune response mediated by cells expressing specific receptors for antigen produced through a somatic diversification process, and allowing for an enhanced secondary response to subsequent exposures to the same antigen (immunological memory).
    GO:0006915    apoptotic process    A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
    GO:0097190    apoptotic signaling pathway    A series of molecular signals which triggers the apoptotic death of a cell. The pathway starts with reception of a signal, and ends when the execution phase of apoptosis is triggered.
    GO:0019722    calcium-mediated signaling    Any intracellular signal transduction in which the signal is passed on within the cell via calcium ions.
    GO:0048469    cell maturation    A developmental process, independent of morphogenetic (shape) change, that is required for a cell to attain its fully functional state.
    GO:0002376    immune system process    Any process involved in the development or functioning of the immune system, an organismal system for calibrated responses to potential internal or invasive threats.
    GO:0045087    innate immune response    Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
    GO:0035556    intracellular signal transduction    The process in which a signal is passed on to downstream components within the cell, which become activated themselves to further propagate the signal and finally trigger a change in the function or state of the cell.
    GO:0007498    mesoderm development    The process whose specific outcome is the progression of the mesoderm over time, from its formation to the mature structure. The mesoderm is the middle germ layer that develops into muscle, bone, cartilage, blood and connective tissue.
    GO:0001818    negative regulation of cytokine production    Any process that stops, prevents, or reduces the rate of production of a cytokine.
    GO:0038083    peptidyl-tyrosine autophosphorylation    The phosphorylation by a protein of one or more of its own tyrosine amino acid residues, or a tyrosine residue on an identical protein.
    GO:0018108    peptidyl-tyrosine phosphorylation    The phosphorylation of peptidyl-tyrosine to form peptidyl-O4'-phospho-L-tyrosine.
    GO:0016310    phosphorylation    The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
    GO:0045579    positive regulation of B cell differentiation    Any process that activates or increases the frequency, rate or extent of B cell differentiation.
    GO:0051092    positive regulation of NF-kappaB transcription factor activity    Any process that activates or increases the frequency, rate or extent of activity of the transcription factor NF-kappaB.
    GO:0006468    protein phosphorylation    The process of introducing a phosphate group on to a protein.
    GO:0002902    regulation of B cell apoptotic process    Any process that modulates the frequency, rate, or extent of B cell apoptotic process.
    GO:0002721    regulation of B cell cytokine production    Any process that modulates the frequency, rate, or extent of B cell cytokine production.
    GO:0042127    regulation of cell proliferation    Any process that modulates the frequency, rate or extent of cell proliferation.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.
    GO:0007169    transmembrane receptor protein tyrosine kinase signaling pathway    A series of molecular signals initiated by the binding of an extracellular ligand to a receptor on the surface of the target cell where the receptor possesses tyrosine kinase activity, and ending with regulation of a downstream cellular process, e.g. transcription.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0031410    cytoplasmic vesicle    A vesicle found in the cytoplasm of a cell.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0031234    extrinsic component of cytoplasmic side of plasma membrane    The component of a plasma membrane consisting of gene products and protein complexes that are loosely bound to its cytoplasmic surface, but not integrated into the hydrophobic region.
    GO:0043231    intracellular membrane-bounded organelle    Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0045121    membrane raft    Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    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.

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 Related Entries

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

UniProtKB/Swiss-Prot
        BTK_HUMAN | Q061871aww 1awx 1b55 1btk 1bwn 1qly 2ge9 2z0p 3gen 3k54 3ocs 3oct 3p08 3pix 3piy 3piz 3pj1 3pj2 3pj3 4nwm 4ot5 4ot6 4otf 4otq 4otr 4rfy 4rfz 4rg0 4rx5 4yhf 4z3v 4zly 4zlz 5bpy 5bq0 5fbn 5fbo 5j87 5jrs 5kup 5p9f 5p9g 5p9h 5p9i 5p9j 5p9k 5p9l 5p9m 5t18 5u9d 5vgo

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1K2P)