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SIAH1

siah E3 ubiquitin protein ligase 1

E3 ubiquitin-protein ligase that mediates ubiquitination and subsequent proteasomal degradation of target proteins. E3 ubiquitin ligases accept ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Mediates E3 ubiquitin ligase activity either through direct binding to substrates or by functioning as the essential RING domain subunit of larger E3 complexes. Triggers the ubiquitin-mediated degradation of many substrates, including proteins involved in transcription regulation (ELL2, MYB, POU2AF1, PML and RBBP8), a cell surface receptor (DCC), the cell-surface receptor-type tyrosine kinase FLT3, the cytoplasmic signal transduction molecules (KLF10/TIEG1 and NUMB), an antiapoptotic protein (BAG1), a microtubule motor protein (KIF22), a protein involved in synaptic vesicle function in neurons (SYP), a structural protein (CTNNB1) and SNCAIP. Confers constitutive instability to HIPK2 through proteasomal degradation. It is thereby involved in many cellular processes such as apoptosis, tumor suppression, cell cycle, axon guidance, transcription regulation, spermatogenesis and TNF-alpha signaling. Has some overlapping function with SIAH2. Induces apoptosis in cooperation with PEG3. Upon nitric oxid (NO) generation that follows apoptotic stimulation, interacts with S-nitrosylated GAPDH, mediating the translocation of GAPDH to the nucleus. GAPDH acts as a stabilizer of SIAH1, facilitating the degradation of nuclear proteins.

Gene Name: siah E3 ubiquitin protein ligase 1
Synonyms: SIAH1, HSIAH1, HUMSIAH, Siah-1, Siah-1a, Seven in absentia homolog 1, SIAH1A
Target Sequences: NM_003031 NP_003022.3 Q8IUQ4

Publications (2)

1
Inhibition of RAS-mediated transformation and tumorigenesis by targeting the downstream E3 ubiquitin ligase seven in absentia homologue. Schmidt RL, Park CH, Ahmed AU, Gundelach JH, Reed NR, Cheng S, Knudsen BE, Tang AH. Cancer research. 2007 67:11798-810. (ICC, IHC, WB, Flo) [PubMed:18089810]
2
BAG1 modulates huntingtin toxicity, aggregation, degradation, and subcellular distribution. Sroka K, Voigt A, Deeg S, Reed JC, Schulz JB, Bhr M, Kermer P. Journal of neurochemistry. 2009 111:801-7. [PubMed:19712056] Related Antibodies: LS-C34634.

☰ Filters
Antibodies (32)
Proteins (9)
Over-Expression Lysate (4)
Primary (32)
Recombinant (5)
SIAH1 (41)
Human (32)
Mouse (16)
Rat (15)
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Chicken (7)
Chimpanzee (6)
Dog (7)
Drosophila (1)
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Guinea pig (6)
Hamster (7)
Horse (7)
Monkey (7)
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Xenopus (6)
Zebrafish (8)
IHC (10)
IHC-P (5)
WB (31)
ELISA (11)
ICC (1)
IF (4)
IP (2)
Peptide-ELISA (4)
rabbit (29)
mouse (1)
goat (2)
Product Group
IHCPlus (1)
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IgG1 (1)
IgG1,k (1)
monoclonal mc (1)
polyclonal pc (31)
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APC Conjugated (1)
Azide-free (1)
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PE Conjugated (1)
Unconjugated (20)
aa92-120 (7)
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aa191-240 (4)
C-Terminus (1)
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aa1-313 (1)
aa181-230 (1)
aa33-47 (1)
No (40)
Yes (1)
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SIAH1 Antibody - SIAH1 antibody staining (0.1 ug/ml) of Human Liver lysate (RIPA buffer, 30g total protein per lane). Primary incubated for 1 hour. Detected by Western blot of chemiluminescence.
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SIAH1 Goat anti-Human Polyclonal (aa33-47) Antibody
Chicken, Zebrafish, Pig, Horse, Bat, Bovine, Mouse, Dog, Rat, Hamster, Human, Monkey
Peptide-ELISA, WB
Unconjugated
100 µg/$503
SIAH1 Antibody - Anti-SIAH1 antibody IHC of human liver. Immunohistochemistry of formalin-fixed, paraffin-embedded tissue after heat-induced antigen retrieval. Antibody concentration 5 ug/ml.  This image was taken for the unconjugated form of this product. Other forms have not been tested.
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SIAH1 Rabbit anti-Human Polyclonal (aa191-240) Antibody
Human
IHC, IHC-P, WB
Unconjugated
100 µl/$460
SIAH1 Antibody - Anti-SIAH1 antibody IHC of human liver. Immunohistochemistry of formalin-fixed, paraffin-embedded tissue after heat-induced antigen retrieval. Antibody concentration 5 ug/ml.  This image was taken for the unconjugated form of this product. Other forms have not been tested.
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SIAH1 Rabbit anti-Human Polyclonal (aa191-240) (HRP) Antibody
Xenopus, Chicken, Zebrafish, Rat, Hamster, Bat, Pig, Horse, Bovine, Rabbit, Mouse, Dog, Guinea pig, Human, Monkey, Gibbon, Chimpanzee
IHC, IHC-P, WB
HRP Conjugated
100 µl/$442
SIAH1 Antibody - Anti-SIAH1 antibody IHC of human liver. Immunohistochemistry of formalin-fixed, paraffin-embedded tissue after heat-induced antigen retrieval. Antibody concentration 5 ug/ml.  This image was taken for the unconjugated form of this product. Other forms have not been tested.
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SIAH1 Rabbit anti-Human Polyclonal (aa191-240) (Biotin) Antibody
Xenopus, Chicken, Zebrafish, Rat, Hamster, Bat, Pig, Horse, Bovine, Rabbit, Mouse, Dog, Guinea pig, Human, Monkey, Gibbon, Chimpanzee
IHC, IHC-P, WB
Biotin Conjugated
100 µl/$442
SIAH1 Antibody - Anti-SIAH1 antibody IHC of human liver. Immunohistochemistry of formalin-fixed, paraffin-embedded tissue after heat-induced antigen retrieval. Antibody concentration 5 ug/ml.  This image was taken for the unconjugated form of this product. Other forms have not been tested.
Select
SIAH1 Rabbit anti-Human Polyclonal (aa191-240) (FITC) Antibody
Xenopus, Chicken, Zebrafish, Rat, Hamster, Bat, Pig, Horse, Bovine, Rabbit, Mouse, Dog, Guinea pig, Human, Monkey, Gibbon, Chimpanzee
IHC, IHC-P, WB
FITC Conjugated
100 µl/$442
Select
SIAH1 Rabbit anti-Human Polyclonal Antibody
Human
ELISA, IF, IHC, WB
Unconjugated
100 µg/$351
SIAH1 Antibody - Immunohistochemistry of paraffin-embedded rat testis using SIAH1 antibody at dilution of 1:200 (x400 lens).
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SIAH1 Rabbit anti-Human Polyclonal Antibody
Mouse, Rat, Human
IF, IHC, WB
Unconjugated
20 µl/$275; 50 µl/$311; 100 µl/$389; 200 µl/$503
SIAH1 Antibody - Immunofluorescent analysis of SIAH1 staining in U2OS cells. Formalin-fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 5-10 minutes and blocked with 3% BSA-PBS for 30 minutes at room temperature. Cells were probed with the primary antibody in 3% BSA-PBS and incubated overnight at 4 deg C in a humidified chamber. Cells were washed with PBST and incubated with a DyLight 594-conjugated secondary antibody (red) in PBS at room temperature in the dark.
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SIAH1 Rabbit anti-Human Polyclonal Antibody
Mouse, Rat, Human
ICC, IF, WB
Unconjugated
50 µl/$286; 100 µl/$321; 200 µl/$386
Select
SIAH1 Rabbit anti-Human Polyclonal Antibody
Human
ELISA, IHC, WB
Unconjugated
50 µg/$440; 100 µg/$480
SIAH1 Antibody - Immunohistochemistry of paraffin-embedded human lung using antibody at 1:100 dilution.
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SIAH1 Rabbit anti-Human Polyclonal (aa1-313) Antibody
Human
ELISA, IHC, IHC-P
Unconjugated
50 µl/$294; 100 µl/$360
SIAH1 Antibody - 1:100 staining human gastric tissue by IHC-P. The sample was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The sample was then blocked and incubated with the antibody for 1.5 hours at 22°C. An HRP conjugated goat anti-rabbit antibody was used as the secondary.
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SIAH1 Rabbit anti-Human Polyclonal Antibody
Mouse, Rat, Human
IHC, Peptide-ELISA, WB
Unconjugated
100 µl/$379; 200 µl/$421
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SIAH1 Rabbit anti-Human Polyclonal Antibody
Mouse, Rat, Human
IF, WB
Unconjugated
50 µl/$338; 100 µl/$431
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SIAH1 Rabbit anti-Human Polyclonal (N-Terminus) Antibody
Human
IHC, WB
Unconjugated
100 µl/$440; 200 µl/$468
SIAH1 Antibody - SIAH1 monoclonal antibody (M02), clone 2C5. Western Blot analysis of SIAH1 expression in Jurkat.
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SIAH1 Mouse anti-Human Monoclonal (2C5) Antibody
Human
ELISA, WB
Unconjugated
100 µg/$423
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SIAH1 Rabbit anti-Human Polyclonal (aa92-120) Antibody
Human
ELISA, WB
Unconjugated
200 µl/$734
Select
SIAH1 Rabbit anti-Human Polyclonal (aa92-120) (Biotin) Antibody
Human
ELISA, WB
Biotin Conjugated
200 µl/$952
Select
SIAH1 Rabbit anti-Human Polyclonal (aa92-120) (FITC) Antibody
Human
ELISA, WB
FITC Conjugated
200 µl/$952
Select
SIAH1 Rabbit anti-Human Polyclonal (aa92-120) (APC) Antibody
Human
ELISA, WB
APC Conjugated
200 µl/$952
Select
SIAH1 Rabbit anti-Human Polyclonal (aa92-120) (PE) Antibody
Human
ELISA, WB
PE Conjugated
200 µl/$952
Select
SIAH1 Rabbit anti-Human Polyclonal (aa92-120) (Azide-free) (HRP) Antibody
Human
ELISA, WB
HRP Conjugated, Azide-free
200 µl/$952
SIAH1 Antibody - Western blot analysis of extracts from A549 cells and HeLa cells, using SIAH1 antibody.
Select
SIAH1 Rabbit anti-Human Polyclonal Antibody
Mouse, Rat, Human
ELISA, WB
Unconjugated
100 µg/$357
SIAH1 Antibody - Western blot analysis of lysates from A549 and HeLa cells, using SIAH1 Antibody. The lane on the right is blocked with the synthesized peptide.
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SIAH1 Rabbit anti-Human Polyclonal (aa181-230) Antibody
Mouse, Rat, Human
Peptide-ELISA, WB
Unconjugated
50 µl/$334; 100 µl/$397
SIAH1 Antibody - SIAH 1/2 Antibody (8G7H12) - Anti-SINA/SIAH monoclonal antibodies recognize both Drosophila SINA and human SIAH. There are two SINA-like E3 ligases, SINA and SINAH, in Drosophila. SINA monoclonal antibody 8G7H12 is highly specific in recognizing both Drosophila SINA and human SIAH proteins but not Drosophila SINAH. Coomassie blue staining patterns of both the wild-type (WT) and dominant negative (PD) forms of affinity-purified recombinant GST-SINA/SINAH/SIAH fusion proteins are shown in the top panel. Protein standards were included and are shown in kD. Cross-reactivity of SINA monoclonal antibody 8G7H12 against Drosophila SINA and SINAH, and human hSIAH-1 and hSIAH-2 proteins were determined. Anti-SINA-C-terminal antibody 8G7H12 recognizes both human SIAH-1 and SIAH-2 protein.
Select
SIAH1 Rabbit anti-Drosophila Polyclonal (C-Terminus) Antibody
Zebrafish, Drosophila, Pig, Rat, Human
IP, WB
Unconjugated
0.5 ml/$386
SIAH1 Antibody - Biotinylated antibody (2µg/ml) staining of Mouse Brain lysate (35µg protein in RIPA buffer), exactly mirroring its parental non-biotinylated product. Primary incubation was 1 hour. Detected by chemiluminescence, using streptavidin-HRP and using NAP blocker
Select
SIAH1 Goat anti-Human Polyclonal (N Terminus) (Biotin) Antibody
Mouse, Rat, Human
IP, Peptide-ELISA, WB
Biotin Conjugated
100 µg/$503
Select
SIAH1 Rabbit anti-Human Polyclonal Antibody
Human
WB
Unconjugated
100 µg/$466
Viewing 1-25 of 41 product results



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For RESEARCH USE ONLY. Intended for use by laboratory professionals. Not intended for human diagnostic or therapeutic purposes.

The data on this page has been compiled from LifeSpan internal sources, the National Center for Biotechnology Information (NCBI), and The Universal Protein Resource (UniProt).