Signaling by BMP (Homo sapiens)

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721, 23, 252, 5, 143, 226, 83, 16, 2611, 242619, 164, 10, 181713, 15, 1912, 1420Gene expression regulationcytosolnucleoplasmearly endosomeLigand Trap:BMP2ATPACVR2B p-S463,S465-SMAD5 p-4S-BMPR1A BMP2 BMP2 BMPR2 ACVR2B ZFYVE16 BMPR2 SMURF2 BMPR1A ACVR2B p-4S-BMPR1B SMURF1 BMP:p-BMPR:Endofinp-4S-BMPR1B SMURF2 SMAD7 p-S463,S465-SMAD1 BMP2 p-4S-BMPR1B BMP2 p-2S-SMAD1/5/8BMPR2 BMP2 ACVR2B p-S465,S467-SMAD9 p-4S-BMPR1A p-S463,S465-SMAD1 SMAD7 SKIBMPR1B ACVR2A p-4S-BMPR1A BMPRII:BMPRISMAD4 BMP2 SMAD1/5/8BMPR2 BMP:p-BMPR:Endofin:SMAD1/5/8BMP2 Dimeric BMP2I-SMAD:p-2S-SMAD1/5/8p-4S-BMPR1A BMP:BMPRII:p-4S-BMPRIBMP:p-BMPR:I-SMAD:SMURFACVR2A BMP2 p-4S-BMPR1B ZFYVE16 SMAD5 CER1 p-4S-BMPR1B BMPR1B ATPp-S463,S465-SMAD1 BMPR1A p-2S-SMAD1/5/8:SMAD4:SKIACVR2A ACVR2A NOG ZFYVE16 ACVR2A ACVR2A p-2S-SMAD1/5/8:SMAD4BMPR2 SMAD6 CHRDL1 p-4S-BMPR1B BMPR2 ACVR2A ACVR2A p-4S-BMPR1A BMP2:BMPtypeIIreceptor:Phospho-BMP type I receptor:I-SMADSMAD4 ACVR2B ZFYVE16I-SMAD:SMURFBMP:BMPRII:BMPRISMURFp-S463,S465-SMAD1 SMAD7 Nuclear ubiquitinligasep-S465,S467-SMAD9 SMAD9 ACVR2B p-S465,S467-SMAD9 ADPBMPR1A BMPR2 p-S463,S465-SMAD1 p-S463,S465-SMAD5 SMAD6 SKI SMAD4 p-S463,S465-SMAD5 ACVR2A p-S465,S467-SMAD9 ACVR2B BMPR2 BMPRI dimerBMP:p-BMPR:Endofin:p-2S-SMAD1/5/8SMAD7 SMAD1 SMAD6 p-S463,S465-SMAD5 BMPR2 SMAD4p-2S-SMAD1/5/8:SMAD4SMURF1 BMPR1B ACVR2B GREM2 FSTL1 p-4S-BMPR1A Ligand TrapI-SMADBMP2 ACVR2B ADPSMAD6 BMPRII dimerp-S463,S465-SMAD5 p-S465,S467-SMAD9


Description

The TGF-beta/BMP (bone morphogenetic protein) pathway incorporates several signalling pathways that share most, but not all, components of a central signal transduction engine. The general signalling scheme is rather simple: upon binding of a ligand, an activated plasma membrane receptor complex is formed, which passes on the signal towards the nucleus through a phosphorylated receptor-activated SMAD (r-SMAD). In the nucleus, the activated r-SMAD promotes transcription in a complex with a closely-related helper molecule termed the Co-SMAD. However, this simple linear pathway expands into a network when various regulatory components and mechanisms are taken into account. The signalling pathway includes a great variety of different TGF-beta/BMP superfamily ligands and receptors, several types of the r-SMAD, and functionally critical negative feedback loops. The r-SMAD/Co-SMAD can interact with a great number of transcriptional co-activators/co-repressors to regulate positively or negatively effector genes, so that the interpretation of a signal depends on the cell-type and cross talk with other signalling pathways such as Notch, MAPK and Wnt. The pathway plays a number of different biological roles in the control of embryonic and adult cell proliferation and differentiation, and it is implicated in a great number of human diseases. Source:Reactome.

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Bibliography

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History

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CompareRevisionActionTimeUserComment
115008view16:54, 25 January 2021ReactomeTeamReactome version 75
113452view11:52, 2 November 2020ReactomeTeamReactome version 74
112652view16:03, 9 October 2020ReactomeTeamReactome version 73
101568view11:43, 1 November 2018ReactomeTeamreactome version 66
101104view21:27, 31 October 2018ReactomeTeamreactome version 65
100633view20:01, 31 October 2018ReactomeTeamreactome version 64
100183view16:46, 31 October 2018ReactomeTeamreactome version 63
99733view15:12, 31 October 2018ReactomeTeamreactome version 62 (2nd attempt)
99302view12:46, 31 October 2018ReactomeTeamreactome version 62
93947view13:46, 16 August 2017ReactomeTeamreactome version 61
93540view11:26, 9 August 2017ReactomeTeamreactome version 61
87119view18:37, 18 July 2016EgonwOntology Term : 'signaling pathway' added !
86639view09:22, 11 July 2016ReactomeTeamreactome version 56
83183view10:18, 18 November 2015ReactomeTeamVersion54
81551view13:05, 21 August 2015ReactomeTeamVersion53
77018view08:31, 17 July 2014ReactomeTeamFixed remaining interactions
76723view12:08, 16 July 2014ReactomeTeamFixed remaining interactions
76049view10:11, 11 June 2014ReactomeTeamRe-fixing comment source
75758view11:25, 10 June 2014ReactomeTeamReactome 48 Update
75108view14:06, 8 May 2014AnweshaFixing comment source for displaying WikiPathways description
74755view08:50, 30 April 2014ReactomeTeamNew pathway

External references

DataNodes

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NameTypeDatabase referenceComment
ACVR2A ProteinP27037 (Uniprot-TrEMBL)
ACVR2B ProteinQ13705 (Uniprot-TrEMBL)
ADPMetaboliteCHEBI:16761 (ChEBI)
ATPMetaboliteCHEBI:15422 (ChEBI)
BMP2 ProteinP12643 (Uniprot-TrEMBL)
BMP2:BMP

type II

receptor:Phospho-BMP type I receptor:I-SMAD
ComplexR-HSA-201446 (Reactome)
BMP:BMPRII:BMPRIComplexR-HSA-201459 (Reactome)
BMP:BMPRII:p-4S-BMPRIComplexR-HSA-201426 (Reactome)
BMP:p-BMPR:Endofin:SMAD1/5/8ComplexR-HSA-201477 (Reactome)
BMP:p-BMPR:Endofin:p-2S-SMAD1/5/8ComplexR-HSA-201467 (Reactome)
BMP:p-BMPR:EndofinComplexR-HSA-201647 (Reactome)
BMP:p-BMPR:I-SMAD:SMURFComplexR-HSA-201841 (Reactome)
BMPR1A ProteinP36894 (Uniprot-TrEMBL)
BMPR1B ProteinO00238 (Uniprot-TrEMBL)
BMPR2 ProteinQ13873 (Uniprot-TrEMBL)
BMPRI dimerComplexR-HSA-201428 (Reactome)
BMPRII dimerComplexR-HSA-201465 (Reactome)
BMPRII:BMPRIComplexR-HSA-202640 (Reactome)
CER1 ProteinO95813 (Uniprot-TrEMBL)
CHRDL1 ProteinQ9BU40 (Uniprot-TrEMBL)
Dimeric BMP2ComplexR-HSA-201463 (Reactome)
FSTL1 ProteinQ12841 (Uniprot-TrEMBL)
GREM2 ProteinQ9H772 (Uniprot-TrEMBL)
I-SMAD:SMURFComplexR-HSA-178185 (Reactome)
I-SMAD:p-2S-SMAD1/5/8ComplexR-HSA-202644 (Reactome)
I-SMADProteinR-HSA-173495 (Reactome)
Ligand Trap:BMP2ComplexR-HSA-201806 (Reactome)
Ligand TrapProteinR-HSA-201828 (Reactome)
NOG ProteinQ13253 (Uniprot-TrEMBL)
Nuclear ubiquitin ligaseR-HSA-173530 (Reactome)
SKI ProteinP12755 (Uniprot-TrEMBL)
SKIProteinP12755 (Uniprot-TrEMBL)
SMAD1 ProteinQ15797 (Uniprot-TrEMBL)
SMAD1/5/8ProteinR-HSA-201424 (Reactome)
SMAD4 ProteinQ13485 (Uniprot-TrEMBL)
SMAD4ProteinQ13485 (Uniprot-TrEMBL)
SMAD5 ProteinQ99717 (Uniprot-TrEMBL)
SMAD6 ProteinO43541 (Uniprot-TrEMBL)
SMAD7 ProteinO15105 (Uniprot-TrEMBL)
SMAD9 ProteinO15198 (Uniprot-TrEMBL)
SMURF1 ProteinQ9HCE7 (Uniprot-TrEMBL)
SMURF2 ProteinQ9HAU4 (Uniprot-TrEMBL)
SMURFR-HSA-173533 (Reactome)
ZFYVE16 ProteinQ7Z3T8 (Uniprot-TrEMBL)
ZFYVE16ProteinQ7Z3T8 (Uniprot-TrEMBL)
p-2S-SMAD1/5/8:SMAD4:SKIComplexR-HSA-201427 (Reactome)
p-2S-SMAD1/5/8:SMAD4ComplexR-HSA-201419 (Reactome)
p-2S-SMAD1/5/8:SMAD4ComplexR-HSA-201450 (Reactome)
p-2S-SMAD1/5/8ProteinR-HSA-201482 (Reactome)
p-4S-BMPR1A ProteinP36894 (Uniprot-TrEMBL)
p-4S-BMPR1B ProteinO00238 (Uniprot-TrEMBL)
p-S463,S465-SMAD1 ProteinQ15797 (Uniprot-TrEMBL)
p-S463,S465-SMAD5 ProteinQ99717 (Uniprot-TrEMBL)
p-S465,S467-SMAD9 ProteinO15198 (Uniprot-TrEMBL)

Annotated Interactions

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SourceTargetTypeDatabase referenceComment
ADPArrowR-HSA-201443 (Reactome)
ADPArrowR-HSA-201476 (Reactome)
ATPR-HSA-201443 (Reactome)
ATPR-HSA-201476 (Reactome)
BMP2:BMP

type II

receptor:Phospho-BMP type I receptor:I-SMAD
ArrowR-HSA-201475 (Reactome)
BMP:BMPRII:BMPRIArrowR-HSA-201457 (Reactome)
BMP:BMPRII:BMPRIR-HSA-201443 (Reactome)
BMP:BMPRII:BMPRImim-catalysisR-HSA-201443 (Reactome)
BMP:BMPRII:p-4S-BMPRIArrowR-HSA-201443 (Reactome)
BMP:BMPRII:p-4S-BMPRIR-HSA-201475 (Reactome)
BMP:BMPRII:p-4S-BMPRIR-HSA-201648 (Reactome)
BMP:BMPRII:p-4S-BMPRIR-HSA-201821 (Reactome)
BMP:BMPRII:p-4S-BMPRImim-catalysisR-HSA-201476 (Reactome)
BMP:p-BMPR:Endofin:SMAD1/5/8ArrowR-HSA-201648 (Reactome)
BMP:p-BMPR:Endofin:SMAD1/5/8R-HSA-201476 (Reactome)
BMP:p-BMPR:Endofin:p-2S-SMAD1/5/8ArrowR-HSA-201476 (Reactome)
BMP:p-BMPR:Endofin:p-2S-SMAD1/5/8R-HSA-201453 (Reactome)
BMP:p-BMPR:EndofinArrowR-HSA-201453 (Reactome)
BMP:p-BMPR:I-SMAD:SMURFArrowR-HSA-201821 (Reactome)
BMPRI dimerR-HSA-202604 (Reactome)
BMPRII dimerR-HSA-202604 (Reactome)
BMPRII:BMPRIArrowR-HSA-202604 (Reactome)
BMPRII:BMPRIR-HSA-201457 (Reactome)
Dimeric BMP2R-HSA-201457 (Reactome)
Dimeric BMP2R-HSA-201810 (Reactome)
Dimeric BMP2mim-catalysisR-HSA-201457 (Reactome)
I-SMAD:SMURFR-HSA-201821 (Reactome)
I-SMAD:p-2S-SMAD1/5/8ArrowR-HSA-202626 (Reactome)
I-SMADR-HSA-201475 (Reactome)
I-SMADR-HSA-202626 (Reactome)
Ligand Trap:BMP2ArrowR-HSA-201810 (Reactome)
Ligand TrapR-HSA-201810 (Reactome)
Nuclear ubiquitin ligasemim-catalysisR-HSA-201425 (Reactome)
R-HSA-201422 (Reactome) The phosphorylated C-terminal tail of R-SMAD induces a conformational change in the MH2 domain (Qin et al. 2001, Chacko et al. 2004), which now acquires high affinity towards Co-SMAD i.e. SMAD4 (common mediator of signal transduction in TGF-beta/BMP signaling). The R-SMAD:Co-SMAD complex (Nakao et al. 1997) most likely is a trimer of two R-SMADs with one Co-SMAD (Kawabata et al. 1998). It is important to note that the Co-SMAD itself cannot be phosphorylated as it lacks the C-terminal serine motif.

ZFYVE16 (endofin) promotes SMAD heterotrimer formation. ZFYVE16 can bind TGFBR1 and facilitate SMAD2 phosphorylation, and it can also bind SMAD4, but the exact mechanism of ZFYVE16 (endofin) action in the context of TGF-beta receptor signaling is not known (Chen et al. 2007).
R-HSA-201423 (Reactome) SKI and SKIL (SNO) are able to recruit NCOR and possibly other transcriptional repressors to SMAD2/3:SMAD4 complex, inhibiting SMAD2/3:SMAD4-mediated transcription (Sun et al. 1999, Luo et al. 1999, Strochein et al. 1999). Experimental findings suggest that SMAD2 and SMAD3 may target SKI and SKIL for degradation (Strochein et al. 1999, Sun et al. 1999 PNAS, Bonni et al. 2001), and that the ratio of SMAD2/3 and SKI/SKIL determines the outcome (inhibition of SMAD2/3:SMAD4-mediated transcription or degradation of SKI/SKIL). SKI and SKIL are overexpressed in various cancer types and their oncogenic effect is connected with their ability to inhibit signaling by TGF-beta receptor complex.
R-HSA-201425 (Reactome) The nuclear R-SMAD:Co-SMAD complex recruits ubiquitin conjugating enzymes, such as UBE2D1 and UBE2D3, that ubiquitinate the complex and eventually lead to its proteasomal degradation. This provides an end point to the signaling pathway.
R-HSA-201443 (Reactome) Formation of the hetero-tetrameric BMP2:receptor complex induces receptor rotation, so that their cytoplasmic kinase domains face each other in a catalytically favourable configuration. The constitutively active type II receptor kinase (which auto-phosphorylates in the absence of ligand), trans-phosphorylates specific serine residues at the conserved Gly-Ser-rich juxtapositioned domain of the type I receptor. It is not known if exactly 8 ATPs are required for the phosphorylation of type I receptor, there could be more or less than this number.
R-HSA-201445 (Reactome) SMAD2 is polyubiquitinated by SMURF2 and targeted for proteasome-mediated degradation.
R-HSA-201453 (Reactome) Upon phosphorylation of the R-SMAD (SMAD2/3), the conformation of the C-terminal (MH2) domain of the R-SMAD changes, lowering its affinity for the type I receptor and ZFYVE9 (SARA). As a result, the phosphorylated R-SMAD dissociates from the activated receptor complex (TGFBR).
R-HSA-201457 (Reactome) The mature dimeric BMP2 binds with high affinity to its signalling receptor, the type II receptor serine/threonine kinase. The type II receptor is known to form dimeric complexes even in the absence of BMP2.
R-HSA-201472 (Reactome) The phosphorylated-r-SMAD1/5/8:Co-SMAD complex rapidly translocates to the nucleus where it binds directly to DNA and interacts with a plethora of transcription co-factors. Regulation of target gene expression can be either positive or negative. A classic example of a target gene of the pathway are the genes encoding for i-SMADs. Thus, BMP2/SMAD signalling induces the expression of the negative regulators of the pathway (a negative feedback loop).
R-HSA-201475 (Reactome) I-SMADs reside in the nucleus presumably to be sequestered from the BMP2:receptor complex and thus avoid inappropriate silencing of the signalling pathway. Upon activation of the signalling pathway, I-SMADs exit the nucleus and are recruited to the signalling BMP2:receptor complex. I-SMADs directly bind to the so-called L45 loop of the type I receptor, the site of binding of R-SMADs. Thus, I-SMADs competitively inhibit the activation/phosphorylation of R-SMADs.
R-HSA-201476 (Reactome) Activated type I receptor kinase directly phosphorylates two of the C-terminal serine residues of SMAD2 or SMAD3. Binding of these R-SMADs to the L45 loop of the type I receptor is critical for this event.
R-HSA-201648 (Reactome) Endofin is a FYVE domain-containing protein that strongly resembles SARA, the Smad anchor for receptor activation that facilitates TGF-beta signalling. Endofin acts in a similar manner as SARA, it binds to BMP-specific R-Smads, it localizes in early endosomes and it facilitates their phosphorylation, thus promoting signal transduction by the BMP receptors. However, it should be noted that endofin has also been reported to bind to the Co-Smad, Smad4, and to the TGF-beta type receptor, thus enhancing TGF-beta signalling. Since Smad4 is a common Smad that operates in the BMP-specific pathways, the latter observation might imply that endofin could regulate both TGF-beta and BMP signalling, a hypothesis still open for investigation.
R-HSA-201810 (Reactome) BMP ligand traps are cystine-knot containing proteins which bind BMPs and antagonise their actions. They are active during organ development and morphogenesis. Different BMP ligand traps show specific spatio-temporal expression during development, and selective activity against specific BMP ligands.
R-HSA-201821 (Reactome) Smad6 and Smad7, the two I-Smads, bind directly to the BMP type I receptors and recruit the ubiquitin ligase Smurf1. This reaction leads to competitive inhibition of R-Smad binding to the type I receptor and activating phosphorylation by the receptor, and also leads to BMP receptor ubiquitination and degradation.
R-HSA-202604 (Reactome) BMP receptors, unlike TGF-beta receptors are known to form hetero-oligomeric complexes in the endoplasmic reticulum and are transported as oligomers to the plasma membrane where they bind ligand. However, evidence for ligand-induced heteromeric BMP receptor complexes on the cell surface has also been published, leading to a model where both pre-formed and ligand-induced receptor oligomers are encountered on the plasma membrane. Based on the latter, a theory has been formulated that suggests that the signaling outcome from pre-formed and ligand-induced BMP receptor complexes is different. The mechanism that might explain this theory must involve different ways of internalization and trafficking of the BMP receptor complexes.
R-HSA-202626 (Reactome) I-SMAD selectively antagonizes BMP-activated Smad1/5/9 by acting as a CO-SMAD decoy.
SKIR-HSA-201423 (Reactome)
SMAD1/5/8R-HSA-201445 (Reactome)
SMAD1/5/8R-HSA-201648 (Reactome)
SMAD4R-HSA-201422 (Reactome)
SMURFmim-catalysisR-HSA-201445 (Reactome)
ZFYVE16R-HSA-201648 (Reactome)
p-2S-SMAD1/5/8:SMAD4:SKIArrowR-HSA-201423 (Reactome)
p-2S-SMAD1/5/8:SMAD4ArrowR-HSA-201422 (Reactome)
p-2S-SMAD1/5/8:SMAD4ArrowR-HSA-201472 (Reactome)
p-2S-SMAD1/5/8:SMAD4R-HSA-201423 (Reactome)
p-2S-SMAD1/5/8:SMAD4R-HSA-201425 (Reactome)
p-2S-SMAD1/5/8:SMAD4R-HSA-201472 (Reactome)
p-2S-SMAD1/5/8ArrowR-HSA-201453 (Reactome)
p-2S-SMAD1/5/8R-HSA-201422 (Reactome)
p-2S-SMAD1/5/8R-HSA-202626 (Reactome)
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