Entry
Name
B cell receptor signaling pathway - Mus musculus (house mouse)
Description
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.
Class
Organismal Systems; Immune system
BRITE hierarchy
Pathway map
mmu04662 B cell receptor signaling pathway
Other DBs
Organism
Mus musculus (house mouse) [GN:
mmu ]
Gene
108723 Card11; caspase recruitment domain family, member 11 [KO:K07367 ]
12518 Cd79a; CD79A antigen (immunoglobulin-associated alpha) [KO:K06506 ]
14130 Fcgr2b; Fc receptor, IgG, low affinity IIb [KO:K12560 ]
14727 Lilrb4b; leukocyte immunoglobulin-like receptor, subfamily B, member 4B [KO:K06512 ]
14728 Lilrb4a; leukocyte immunoglobulin-like receptor, subfamily B, member 4A [KO:K06512 ]
14784 Grb2; growth factor receptor bound protein 2 [KO:K04364 ]
15461 Hras; Harvey rat sarcoma virus oncogene [KO:K02833 ]
16151 Ikbkg; inhibitor of kappaB kinase gamma [KO:K07210 ]
16653 Kras; Kirsten rat sarcoma viral oncogene homolog [KO:K07827 ]
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 ]
18033 Nfkb1; nuclear factor of kappa light polypeptide gene enhancer in B cells 1, p105 [KO:K02580 ]
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 ]
18706 Pik3ca; phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha [KO:K00922 ] [EC:2.7.1.153 ]
18707 Pik3cd; phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit delta [KO:K00922 ] [EC:2.7.1.153 ]
18708 Pik3r1; phosphoinositide-3-kinase regulatory subunit 1 [KO:K02649 ]
18709 Pik3r2; phosphoinositide-3-kinase regulatory subunit 2 [KO:K02649 ]
18710 Pik3r3; phosphoinositide-3-kinase regulatory subunit 3 [KO:K02649 ]
18726 Lilra6; leukocyte immunoglobulin-like receptor, subfamily A (with TM domain), member 6 [KO:K06512 ]
19055 Ppp3ca; protein phosphatase 3, catalytic subunit, alpha isoform [KO:K04348 ] [EC:3.1.3.16 ]
19057 Ppp3cc; protein phosphatase 3, catalytic subunit, gamma isoform [KO:K04348 ] [EC:3.1.3.16 ]
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 ]
19697 Rela; v-rel reticuloendotheliosis viral oncogene homolog A (avian) [KO:K04735 ]
20662 Sos1; SOS Ras/Rac guanine nucleotide exchange factor 1 [KO:K03099 ]
20663 Sos2; SOS Ras/Rho guanine nucleotide exchange factor 2 [KO:K03099 ]
232801 Lilra5; leukocyte immunoglobulin-like receptor, subfamily A (with TM domain), member 5 [KO:K06512 ]
242248 Bank1; B cell scaffold protein with ankyrin repeats 1 [KO:K26239 ]
26377 Dapp1; dual adaptor for phosphotyrosine and 3-phosphoinositides 1 [KO:K12229 ]
68713 Ifitm1; interferon induced transmembrane protein 1 [KO:K19831 ]
74769 Pik3cb; phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit beta [KO:K00922 ] [EC:2.7.1.153 ]
83490 Pik3ap1; phosphoinositide-3-kinase adaptor protein 1 [KO:K12230 ]
Compound
C01245 D-myo-Inositol 1,4,5-trisphosphate
C05981 Phosphatidylinositol-3,4,5-trisphosphate
Reference
Authors
Niiro H, Clark EA.
Title
Regulation of B-cell fate by antigen-receptor signals.
Journal
Reference
Authors
Kurosaki T.
Title
Genetic analysis of B cell antigen receptor signaling.
Journal
Reference
Authors
Nitschke L.
Title
The role of CD22 and other inhibitory co-receptors in B-cell activation.
Journal
Reference
Authors
Morgan BP, Marchbank KJ, Longhi MP, Harris CL, Gallimore AM.
Title
Complement: central to innate immunity and bridging to adaptive responses.
Journal
Reference
Authors
Kurosaki T.
Title
Regulation of B-cell signal transduction by adaptor proteins.
Journal
Reference
Authors
Nitschke L, Tsubata T.
Title
Molecular interactions regulate BCR signal inhibition by CD22 and CD72.
Journal
Reference
Authors
Jumaa H, Hendriks RW, Reth M.
Title
B cell signaling and tumorigenesis.
Journal
Reference
Authors
Rickert RC.
Title
Regulation of B lymphocyte activation by complement C3 and the B cell coreceptor complex.
Journal
Reference
Authors
Zouali M, Sarmay G
Title
B lymphocyte signaling pathways in systemic autoimmunity: implications for pathogenesis and treatment.
Journal
Reference
Authors
Chiles TC.
Title
Regulation and function of cyclin D2 in B lymphocyte subsets.
Journal
Reference
Authors
Allam A, Marshall AJ
Title
Role of the adaptor proteins Bam32, TAPP1 and TAPP2 in lymphocyte activation.
Journal
Reference
Authors
Gold MR
Title
To make antibodies or not: signaling by the B-cell antigen receptor.
Journal
Reference
Authors
Fu C, Turck CW, Kurosaki T, Chan AC
Title
BLNK: a central linker protein in B cell activation.
Journal
Reference
Authors
Okada T, Maeda A, Iwamatsu A, Gotoh K, Kurosaki T
Title
BCAP: the tyrosine kinase substrate that connects B cell receptor to phosphoinositide 3-kinase activation.
Journal
Reference
Authors
Shinohara H, Maeda S, Watarai H, Kurosaki T
Title
IkappaB kinase beta-induced phosphorylation of CARMA1 contributes to CARMA1 Bcl10 MALT1 complex formation in B cells.
Journal
Related pathway
mmu04610 Complement and coagulation cascades
mmu04810 Regulation of actin cytoskeleton
KO pathway