Recombinant Human Smad1 protein (GST tag N-Terminus)
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- WB
Unknown
Western blot - Recombinant Human Smad1 protein (GST tag N-Terminus) (AB84653)
ab46688 recognizes the tagged recombinant Smad1 protein (ab84653) which has an expected molecular weight of 83 kDa.
All lanes:
Anti-Smad1 antibody (<a href='/ko/products/unavailable/smad1-antibody-ab46688'>ab46688</a>) at 1 µg/mL
All lanes:
Western blot - Recombinant Human Smad1 protein (GST tag N-Terminus) (ab84653) at 0.01 µg
Secondary
All lanes:
Western blot - Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (<a href='/ko/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-preadsorbed-ab97080'>ab97080</a>) at 1/5000 dilution
true
Exposure time: 10s
- SDS-PAGE
Unknown
SDS-PAGE - Recombinant Human Smad1 protein (GST tag N-Terminus) (AB84653)
SDS-PAGE showing ab84653 at approximately 83kDa.
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This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
Smad1 participates in the transmission of BMP signals from the cell surface to the nucleus ensuring transcriptional regulation of target genes. In the presence of BMPs Smad1 forms complexes with Smad4 upon activation. These Smad complexes then translocate to the nucleus where they regulate gene expression. Smad1 influences cellular responses such as proliferation differentiation and apoptosis. In particular it plays a significant role in bone development and osteogenesis.
Pathways
Smad1 plays an important role within the BMP signaling pathway which is important for early development and tissue homeostasis. Within this pathway BMPs trigger the phosphorylation of Smad1 which then associates with Smad4 to propagate downstream signaling. Another associated pathway includes the TGF-beta signaling pathway where Smads like Smad2 and Smad3 show functional similarities and differences with Smad1. The interactions of Smad1 with related proteins like Smad4 highlight its significant contribution to cellular processes regulated by these pathways.
일반 정보
기능
Transcriptional modulator that plays a role in various cellular processes, including embryonic development, cell differentiation, and tissue homeostasis (PubMed : 9335504). Upon BMP ligand binding to their receptors at the cell surface, is phosphorylated by activated type I BMP receptors (BMPRIs) and associates with SMAD4 to form a heteromeric complex which translocates into the nucleus acting as transcription factor (PubMed : 33667543). In turn, the hetero-trimeric complex recognizes cis-regulatory elements containing Smad Binding Elements (SBEs) to modulate the outcome of the signaling network (PubMed : 33667543). SMAD1/OAZ1/PSMB4 complex mediates the degradation of the CREBBP/EP300 repressor SNIP1. Positively regulates BMP4-induced expression of odontogenic development regulator MSX1 following IPO7-mediated nuclear import (By similarity).
서열 유사성
Belongs to the dwarfin/SMAD family.
Post-translational modifications
Phosphorylation of the C-terminal SVS motif by BMP type 1 receptor kinase activates SMAD1 by promoting dissociation from the receptor and trimerization with SMAD4. Phosphorylation by ERK2 MAP kinase in response to EGF or HGF prevents SMAD1 nuclear accumulation and transcriptional activity in response to BMP (PubMed:9335504). Dephosphorylation, probably by PPM1A, induces its export from the nucleus to the cytoplasm (By similarity). Dephosphorylation is inhibited by association with EGR1 (By similarity). Phosphorylation by CDK8/9 creates binding sites for YAP1, and subsequent phosphorylation by GSK3 switches off YAP1 binding and adds binding sites for SMURF1 (PubMed:21685363).. Ubiquitinated by SMAD-specific E3 ubiquitin ligase SMURF1, leading to its degradation. Monoubiquitinated, leading to prevent DNA-binding. Deubiquitination by USP15 alleviates inhibition and promotes activation of TGF-beta target genes. Dephosphorylation, probably by PPM1A, induces its export from the nucleus to the cytoplasm (By similarity). Phospho-SMAD1 is ubiquitinated by CHIP leading to disruption of the SMAD1-SMAD4 complex (PubMed:21454478).
Subcellular localisation
Nucleus
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