KEGG   PATHWAY: mmu04662Help
mmu04662                    Pathway                                

B cell receptor signaling pathway - Mus musculus (mouse)
B cells are an important component of adaptive immunity. They produce and secrete millions of different antibody molecules, each of which recognizes a different (foreign) antigen. The B cell receptor (BCR) is an integral membrane protein complex that is composed of two immunoglobulin (Ig) heavy chains, two Ig light chains and two heterodimers of Ig-alpha and Ig-beta. After BCR ligation by antigen, three main protein tyrosine kinases (PTKs) -the SRC-family kinase LYN, SYK and the TEC-family kinase BTK- are activated. Phosphatidylinositol 3-kinase (PI3K) and phospholipase C-gamma 2 (PLC-gamma 2) are important downstream effectors of BCR signalling. This signalling ultimately results in the expression of immediate early genes that further activate the expression of other genes involved in B cell proliferation, differentiation and Ig production as well as other processes.
Organismal Systems; Immune system
BRITE hierarchy
Pathway map
mmu04662  B cell receptor signaling pathway

Ortholog table
Other DBs
BSID: 83278
GO: 0050853
Mus musculus (mouse) [GN:mmu]
641025  CRP55H; Ig heavy chain Mem5-like [KO:K06856]
12518  Cd79a; CD79A antigen (immunoglobulin-associated alpha) [KO:K06506]
15985  Cd79b; CD79B antigen [KO:K06507]
17096  Lyn; LYN proto-oncogene, Src family tyrosine kinase [KO:K05854] [EC:]
666513  Gm11787; predicted gene 11787 [KO:K05854] [EC:]
20963  Syk; spleen tyrosine kinase [KO:K05855] [EC:]
12229  Btk; Bruton agammaglobulinemia tyrosine kinase [KO:K07370] [EC:]
26377  Dapp1; dual adaptor for phosphotyrosine and 3-phosphoinositides 1 [KO:K12229]
17060  Blnk; B cell linker [KO:K07371]
22324  Vav1; vav 1 oncogene [KO:K05730]
22325  Vav2; vav 2 oncogene [KO:K05730]
57257  Vav3; vav 3 oncogene [KO:K05730]
19353  Rac1; Rac family small GTPase 1 [KO:K04392]
19354  Rac2; Rac family small GTPase 2 [KO:K07860]
170758  Rac3; Rac family small GTPase 3 [KO:K07861]
234779  Plcg2; phospholipase C, gamma 2 [KO:K05859] [EC:]
19057  Ppp3cc; protein phosphatase 3, catalytic subunit, gamma isoform [KO:K04348] [EC:]
19055  Ppp3ca; protein phosphatase 3, catalytic subunit, alpha isoform [KO:K04348] [EC:]
19056  Ppp3cb; protein phosphatase 3, catalytic subunit, beta isoform [KO:K04348] [EC:]
19058  Ppp3r1; protein phosphatase 3, regulatory subunit B, alpha isoform (calcineurin B, type I) [KO:K06268]
19059  Ppp3r2; protein phosphatase 3, regulatory subunit B, alpha isoform (calcineurin B, type II) [KO:K06268]
18018  Nfatc1; nuclear factor of activated T cells, cytoplasmic, calcineurin dependent 1 [KO:K04446]
18019  Nfatc2; nuclear factor of activated T cells, cytoplasmic, calcineurin dependent 2 [KO:K17332]
18021  Nfatc3; nuclear factor of activated T cells, cytoplasmic, calcineurin dependent 3 [KO:K17333]
14784  Grb2; growth factor receptor bound protein 2 [KO:K04364]
20662  Sos1; SOS Ras/Rac guanine nucleotide exchange factor 1 [KO:K03099]
20663  Sos2; SOS Ras/Rho guanine nucleotide exchange factor 2 [KO:K03099]
240168  Rasgrp3; RAS, guanyl releasing protein 3 [KO:K12362]
15461  Hras; Harvey rat sarcoma virus oncogene [KO:K02833]
16653  Kras; Kirsten rat sarcoma viral oncogene homolog [KO:K07827]
18176  Nras; neuroblastoma ras oncogene [KO:K07828]
110157  Raf1; v-raf-leukemia viral oncogene 1 [KO:K04366] [EC:]
26395  Map2k1; mitogen-activated protein kinase kinase 1 [KO:K04368] [EC:]
26396  Map2k2; mitogen-activated protein kinase kinase 2 [KO:K04369] [EC:]
26413  Mapk1; mitogen-activated protein kinase 1 [KO:K04371] [EC:]
26417  Mapk3; mitogen-activated protein kinase 3 [KO:K04371] [EC:]
14281  Fos; FBJ osteosarcoma oncogene [KO:K04379]
16476  Jun; jun proto-oncogene [KO:K04448]
18751  Prkcb; protein kinase C, beta [KO:K19662] [EC:]
108723  Card11; caspase recruitment domain family, member 11 [KO:K07367]
12042  Bcl10; B cell leukemia/lymphoma 10 [KO:K07368]
240354  Malt1; MALT1 paracaspase [KO:K07369] [EC:3.4.22.-]
12675  Chuk; conserved helix-loop-helix ubiquitous kinase [KO:K04467] [EC:]
16150  Ikbkb; inhibitor of kappaB kinase beta [KO:K07209] [EC:]
16151  Ikbkg; inhibitor of kappaB kinase gamma [KO:K07210]
18033  Nfkb1; nuclear factor of kappa light polypeptide gene enhancer in B cells 1, p105 [KO:K02580]
19697  Rela; v-rel reticuloendotheliosis viral oncogene homolog A (avian) [KO:K04735]
18035  Nfkbia; nuclear factor of kappa light polypeptide gene enhancer in B cells inhibitor, alpha [KO:K04734]
18036  Nfkbib; nuclear factor of kappa light polypeptide gene enhancer in B cells inhibitor, beta [KO:K02581]
18037  Nfkbie; nuclear factor of kappa light polypeptide gene enhancer in B cells inhibitor, epsilon [KO:K05872]
68713  Ifitm1; interferon induced transmembrane protein 1 [KO:K19831]
12520  Cd81; CD81 antigen [KO:K06508]
12478  Cd19; CD19 antigen [KO:K06465]
12902  Cr2; complement receptor 2 [KO:K04012]
18709  Pik3r2; phosphoinositide-3-kinase regulatory subunit 2 [KO:K02649]
18708  Pik3r1; phosphoinositide-3-kinase regulatory subunit 1 [KO:K02649]
18710  Pik3r3; phosphoinositide-3-kinase regulatory subunit 3 [KO:K02649]
18706  Pik3ca; phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha [KO:K00922] [EC:]
18707  Pik3cd; phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit delta [KO:K00922] [EC:]
74769  Pik3cb; phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit beta [KO:K00922] [EC:]
11651  Akt1; thymoma viral proto-oncogene 1 [KO:K04456] [EC:]
11652  Akt2; thymoma viral proto-oncogene 2 [KO:K04456] [EC:]
23797  Akt3; thymoma viral proto-oncogene 3 [KO:K04456] [EC:]
56637  Gsk3b; glycogen synthase kinase 3 beta [KO:K03083] [EC:]
14130  Fcgr2b; Fc receptor, IgG, low affinity IIb [KO:K12560]
16331  Inpp5d; inositol polyphosphate-5-phosphatase D [KO:K03084] [EC:]
16332  Inppl1; inositol polyphosphate phosphatase-like 1 [KO:K15909] [EC:]
12483  Cd22; CD22 antigen [KO:K06467]
12517  Cd72; CD72 antigen [KO:K06504]
15170  Ptpn6; protein tyrosine phosphatase, non-receptor type 6 [KO:K05697] [EC:]
83490  Pik3ap1; phosphoinositide-3-kinase adaptor protein 1 [KO:K12230]
18733  Pirb; paired Ig-like receptor B [KO:K06512]
C00076  Calcium cation
C00165  Diacylglycerol
C01245  D-myo-Inositol 1,4,5-trisphosphate
C05981  Phosphatidylinositol-3,4,5-trisphosphate
Niiro H, Clark EA.
Regulation of B-cell fate by antigen-receptor signals.
Nat Rev Immunol 2:945-56 (2002)
Kurosaki T.
Genetic analysis of B cell antigen receptor signaling.
Annu Rev Immunol 17:555-92 (1999)
Nitschke L.
The role of CD22 and other inhibitory co-receptors in B-cell activation.
Curr Opin Immunol 17:290-7 (2005)
Morgan BP, Marchbank KJ, Longhi MP, Harris CL, Gallimore AM.
Complement: central to innate immunity and bridging to adaptive responses.
Immunol Lett 97:171-9 (2005)
Kurosaki T.
Regulation of B-cell signal transduction by adaptor proteins.
Nat Rev Immunol 2:354-63 (2002)
Nitschke L, Tsubata T.
Molecular interactions regulate BCR signal inhibition by CD22 and CD72.
Trends Immunol 25:543-50 (2004)
Jumaa H, Hendriks RW, Reth M.
B cell signaling and tumorigenesis.
Annu Rev Immunol 23:415-45 (2005)
Rickert RC.
Regulation of B lymphocyte activation by complement C3 and the B cell coreceptor complex.
Curr Opin Immunol 17:237-43 (2005)
Zouali M, Sarmay G
B lymphocyte signaling pathways in systemic autoimmunity: implications for pathogenesis and treatment.
Arthritis Rheum 50:2730-41 (2004)
Chiles TC.
Regulation and function of cyclin D2 in B lymphocyte subsets.
J Immunol 173:2901-7 (2004)
Allam A, Marshall AJ
Role of the adaptor proteins Bam32, TAPP1 and TAPP2 in lymphocyte activation.
Immunol Lett 97:7-17 (2005)
Gold MR
To make antibodies or not: signaling by the B-cell antigen receptor.
Trends Pharmacol Sci 23:316-24 (2002)
Fu C, Turck CW, Kurosaki T, Chan AC
BLNK: a central linker protein in B cell activation.
Immunity 9:93-103 (1998)
Okada T, Maeda A, Iwamatsu A, Gotoh K, Kurosaki T
BCAP: the tyrosine kinase substrate that connects B cell receptor to phosphoinositide 3-kinase activation.
Immunity 13:817-27 (2000)
Shinohara H, Maeda S, Watarai H, Kurosaki T
IkappaB kinase beta-induced phosphorylation of CARMA1 contributes to CARMA1 Bcl10 MALT1 complex formation in B cells.
J Exp Med 204:3285-93 (2007)
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