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AB303549

重组Anti-SMCR8抗体[EPR26215-5] - BSA and Azide free

Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free

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Rabbit Recombinant Monoclonal SMCR8 antibody. Carrier free. Suitable for WB, IHC-P, ICC/IF, Flow Cyt (Intra), IP, IHC-Fr and reacts with Human, Mouse, Rat samples.

查看别名

Guanine nucleotide exchange protein SMCR8, Smith-Magenis syndrome chromosomal region candidate gene 8 protein, SMCR8

13 Images
Flow Cytometry - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • Flow Cyt

Supplier Data

Flow Cytometry - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation.Flow cytometric analysis of 4% paraformaldehyde fixed 90% methanol permeabilized HeLa (human cervix adenocarcinoma epithelial cell) cells labelling SMCR8 with ab303548 at 1/500 dilution (0.1ug) (Red) (Red) compared with a Rabbit monoclonal IgG (ab172730) (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue). A Goat Anti-Rabbit IgG (Alexa Fluor® 488, ab150081) at 1/2000 dilution was used as the secondary antibody.

Immunocytochemistry/ Immunofluorescence - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation. Immunofluorescent analysis of 4% Paraformaldehyde-fixed, 0.1% TritonX-100 permeabilized HeLa (human cervix adenocarcinoma epithelial cell) cells labelling SMCR8 with ab303548 at 1/50 (10.52 ug/ml) dilution, followed by ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed antibody at 1/1000 2ug/mL dilution (Green). Confocal image showing mainly cytoplasmic and weak nuclear staining in HeLa cell line is observed. ab195889 Anti-alpha Tubulin mouse monoclonal antibody - Microtubule Marker (Alexa Fluor® 594) was used to counterstain tubulin at 1/200 2.5 ug/mL dilution (Red). The Nuclear counterstain was DAPI (Blue). Secondary antibody only control : Secondary antibody is ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 2ug/mL dilution.

Immunoprecipitation - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • IP

Supplier Data

Immunoprecipitation - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

SMCR8 was immunoprecipitated from 0.35 mg HeLa (human cervical adenocarcinoma epithelial cell), whole cell lysate 10 ug with ab303548 at 1/30 dilution (2ug in 0.35mg lysates). Western blot was performed on the immunoprecipitate using ab303548 at 1/1000 dilution. VeriBlot for IP secondary antibody(HRP)(ab131366) was used at 1/5000 dilution. Lane 1 : HeLa (human cervical adenocarcinoma epithelial cell), whole cell lysate 10 ug Lane 2 : ab303548 IP in HeLa whole cell lysate Lane 3 : Rabbit monoclonal IgG (ab172730) instead of ab303548 in HeLa whole cell lysate Blocking and dilution buffer and concentration : 5% NFDM/TBST. Exposure time : 32 seconds The bands beneath the target band in lane2 are likely to be degraded target fragments.

All lanes:

Immunoprecipitation - Anti-SMCR8 antibody [EPR26215-5] (<a href='/products/primary-antibodies/smcr8-antibody-epr26215-5-ab303548'>ab303548</a>) at 1/1000 dilution

All lanes:

HeLa (human cervical adenocarcinoma epithelial cell), whole cell lysate

Secondary

All lanes:

Immunoprecipitation - VeriBlot for IP Detection Reagent (HRP) (<a href='/products/reagents/veriblot-for-ip-detection-reagent-hrp-ab131366'>ab131366</a>) at 1/5000 dilution

false

Immunocytochemistry/ Immunofluorescence - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation. Immunofluorescent analysis of 4% Paraformaldehyde-fixed, 0.1% TritonX-100 permeabilized NIH/3T3 (mouse embryonic fibroblast) cells labelling SMCR8 with ab303548 at 1/50 (10.52 ug/ml) dilution, followed by ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed antibody at 1/1000 2 ug/mL dilution (Green). Confocal image showing cytoplasmic and weak nuclear staining in NIH/3T3 cell line is observed. ab195889 Anti-alpha Tubulin mouse monoclonal antibody - Microtubule Marker (Alexa Fluor® 594) was used to counterstain tubulin at 1/200 2.5 ug/mL dilution (Red). The Nuclear counterstain was DAPI (Blue). Secondary antibody only control : Secondary antibody is ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 2 ug/mL dilution.

Immunohistochemistry (Frozen sections) - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • IHC-Fr

Supplier Data

Immunohistochemistry (Frozen sections) - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation.Immunohistochemical analysis of 4% PFA-fixed, 0.2% Triton X-100 permeabilized frozen Mouse kidney (fresh) tissue labeling SMCR8 with ab303548 at 1/500 (1.052 ug/ml) dilution followed by ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 2 ug/mL dilution (Green). Low expression control : confocal image showing no staining on mouse kidney (PMID : 11997338). The nuclear counterstain was DAPI (Blue). The section was incubated with ab303548 for 60mins at room temperature. The section was then mounted using Fluoromount®.The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8). Secondary antibody control : Secondary antibody is ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbedat 1/1000 2 ug/mL dilution.

Immunohistochemistry (Frozen sections) - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • IHC-Fr

Supplier Data

Immunohistochemistry (Frozen sections) - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation.Immunohistochemical analysis of 4% PFA-fixed, 0.2% Triton X-100 permeabilized frozen Mouse hippocampus (fresh) tissue labeling SMCR8 with ab303548 at 1/500 (1.052 ug/ml) dilution followed by ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 2 ug/mL dilution (Green). Confocal image showing positive staining on mouse hippocampus. The nuclear counterstain was DAPI (Blue). The section was incubated with ab303548 for 60mins at room temperature. The section was then mounted using Fluoromount®.The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8). Secondary antibody control : Secondary antibody is ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbedat 1/1000 2 ug/mL dilution.

Flow Cytometry - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • Flow Cyt

Supplier Data

Flow Cytometry - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation.Flow cytometric analysis of 4% paraformaldehyde fixed 90% methanol permeabilized NIH/3T3 (mouse embryonic fibroblast) cells labelling SMCR8 with ab303548 at 1/500 dilution (0.1ug) (Red) (Red) compared with a Rabbit monoclonal IgG (ab172730) (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue). A Goat Anti-Rabbit IgG (Alexa Fluor® 488, ab150081) at 1/2000 dilution was used as the secondary antibody.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation. Immunohistochemical analysis of paraffin-embedded Mouse kidney tissue labeling SMCR8 with ab303548 at 1/2000 (0.263 ug/ml) followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection) was used. Weakly cytoplasmic staining on mouse kidney (PMID : 27103069). The section was incubated with ab303548 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection).Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation.Immunohistochemical analysis of paraffin-embedded Mouse cerebrum tissue labeling SMCR8 with ab303548 at 1/2000 (0.263 ug/ml) followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection) was used. Positive staining on mouse cerebrum (PMID : 27103069). The section was incubated with ab303548 for 30 mins at room temperature.The immunostaining was performed on a Leica Biosystems BOND® RX instrument Counterstained with Hematoxylin. Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection).Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins

Immunoprecipitation - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • IP

Supplier Data

Immunoprecipitation - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

SMCR8 was immunoprecipitated from 0.35 mg NIH/3T3 (mouse embryonic fibroblast), whole cell lysate 10 ug with ab303548 at 1/30 dilution (2ug in 0.35mg lysates). Western blot was performed on the immunoprecipitate using ab303548 at 1/1000 dilution. VeriBlot for IP secondary antibody(HRP)(ab131366) was used at 1/5000 dilution. Lane 1 : NIH/3T3 (mouse embryonic fibroblast), whole cell lysate 10 ug Lane 2 : ab303548 IP in NIH/3T3 whole cell lysate Lane 3 : Rabbit monoclonal IgG (ab172730) instead of ab303548 in NIH/3T3 whole cell lysate Blocking and dilution buffer and concentration : 5% NFDM/TBST. Exposure time : 32 seconds The bands beneath the target band in lane2 are likely to be degraded target fragments.

All lanes:

NIH/3T3 (mouse embryonic fibroblast), whole cell lysate

Secondary

All lanes:

Immunoprecipitation - VeriBlot for IP Detection Reagent (HRP) (<a href='/products/reagents/veriblot-for-ip-detection-reagent-hrp-ab131366'>ab131366</a>) at 1/5000 dilution

false

Exposure time: 32s

Western blot - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • WB

Supplier Data

Western blot - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation.  Blocking and dilution buffer and concentration : 5% NFDM/TBST. The molecular weight observed is consistent with what has been described in the literature (PMID : 27103069). The bands beneath the target band are likely to be degraded target fragments. In lanes 1, the lysate was stored at -80℃ prior to Western Blotting. In lane 2-5, the lysates were freshly made and used for Western Blotting immediately to minimize protein degradation.  Exposure time : Lane 1 : 84 seconds Lane 2-5 : 3 minutes

All lanes:

Western blot - Anti-SMCR8 antibody [EPR26215-5] (<a href='/products/primary-antibodies/smcr8-antibody-epr26215-5-ab303548'>ab303548</a>) at 1/1000 dilution

Lanes 1 - 2:

HeLa (human cervical adenocarcinoma epithelial cell) at 20 µg

Lane 3:

HEK 293T (human embryonic kidney epithelial cell) at 20 µg

Lane 4:

NIH/3T3 (mouse embryonic fibroblast), whole cell fresh lysate at 20 µg

Lane 5:

PC-12 (rat adrenal gland pheochromocytoma), whole cell fresh lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

Predicted band size: 105 kDa

Observed band size: 140 kDa

false

Western blot - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • WB

Supplier Data

Western blot - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation.  Blocking and dilution buffer and concentration : 5% NFDM/TBST.  The molecular weight observed is consistent with what has been described in the literature (PMID : 27103069). The bands beneath the target band are likely to be degraded target fragments. Low expression : kidney, lung (PMID : 27103069).

All lanes:

Western blot - Anti-SMCR8 antibody [EPR26215-5] (<a href='/products/primary-antibodies/smcr8-antibody-epr26215-5-ab303548'>ab303548</a>) at 1/1000 dilution

Lane 1:

Human cerebellum tissue lysate at 20 µg

Lane 2:

Human kidney tissue lysate at 20 µg

Lane 3:

Human lung tissue lysate at 20 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG (HRP) with minimal cross-reactivity with human IgG at 1/2000 dilution

Predicted band size: 105 kDa

Observed band size: 140 kDa

false

Western blot - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)
  • WB

Supplier Data

Western blot - Anti-SMCR8 antibody [EPR26215-5] - BSA and Azide free (AB303549)

This data was developed using ab303548, the same antibody clone in a different buffer formulation.  Blocking and dilution buffer and concentration : 5% NFDM/TBST. The molecular weight observed is consistent with what has been described in the literature (PMID : 27103069). The bands beneath the target band are likely to be degraded target fragments. Low expression : kidney (PMID : 27103069) In lanes 1-4, the lysates were stored at -80℃ prior to Western Blotting. In lane 5-7, the lysates were freshly made and used for Western Blotting immediately to minimize protein degradation. Exposure time : Lane 1-4 : 81 seconds Lane 5-7 : 3 minutes

All lanes:

Western blot - Anti-SMCR8 antibody [EPR26215-5] (<a href='/products/primary-antibodies/smcr8-antibody-epr26215-5-ab303548'>ab303548</a>) at 1/1000 dilution

Lane 1:

Mouse cerebral cortex tissue lysate at 20 µg

Lane 2:

Mouse kidney tissue lysate at 20 µg

Lane 3:

Rat cerebral cortex tissue lysate at 20 µg

Lane 4:

Rat kidney tissue lysate at 20 µg

Lane 5:

Mouse brain fresh tissue lysate at 20 µg

Lane 6:

Mouse liver fresh tissue lysate at 20 µg

Lane 7:

Mouse testis fresh tissue lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

Predicted band size: 105 kDa

Observed band size: 140 kDa

false

不同偶联物与剂型 (1)

关键信息

宿主种属

Rabbit

克隆

Monoclonal

克隆号

EPR26215-5

亚型

IgG

不含载体蛋白

Yes

反应种属

Human, Mouse, Rat

应用

WB, Flow Cyt (Intra), IHC-Fr, IP, ICC/IF, IHC-P

applications

免疫原

The exact immunogen used to generate this antibody is proprietary information.

反应性数据

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"}, "FlowCytIntra" : {"fullname" : "Flow Cytometry (Intracellular)", "shortname":"Flow Cyt (Intra)"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "IHCFr" : {"fullname" : "Immunohistochemistry (Frozen sections)", "shortname":"IHC-Fr"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "<p></p>", "FlowCytIntra-species-checked": "testedAndGuaranteed", "FlowCytIntra-species-dilution-info": "", "FlowCytIntra-species-notes": "<p></p>", "IP-species-checked": "testedAndGuaranteed", "IP-species-dilution-info": "", "IP-species-notes": "<p></p>", "IHCFr-species-checked": "guaranteed", "IHCFr-species-dilution-info": "", "IHCFr-species-notes": "" }, "Mouse": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "<p></p>", "FlowCytIntra-species-checked": "testedAndGuaranteed", "FlowCytIntra-species-dilution-info": "", "FlowCytIntra-species-notes": "<p></p>", "IP-species-checked": "testedAndGuaranteed", "IP-species-dilution-info": "", "IP-species-notes": "<p></p>", "IHCFr-species-checked": "testedAndGuaranteed", "IHCFr-species-dilution-info": "", "IHCFr-species-notes": "<p></p>" }, "Rat": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "", "FlowCytIntra-species-checked": "guaranteed", "FlowCytIntra-species-dilution-info": "", "FlowCytIntra-species-notes": "", "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "IHCFr-species-checked": "guaranteed", "IHCFr-species-dilution-info": "", "IHCFr-species-notes": "" } } }

产品详情

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

性能和储存信息

形式
Liquid
纯化工艺
Affinity purification Protein A
存储溶液
pH: 7.2 - 7.4 Constituents: PBS
运输条件
Blue Ice
推荐的短期储存条件
+4°C
推荐的长期储存条件
+4°C
储存信息
Do Not Freeze

补充信息

This supplementary information is collated from multiple sources and compiled automatically.

SMCR8 also known as Smith-Magenis Syndrome Chromosome Region 8 is a protein with a molecular weight of approximately 105 kDa. This protein is expressed in multiple tissues with significant presence in the brain kidney and liver. SMCR8 functions mechanically as a guanine nucleotide exchange factor and it plays a vital role in cellular homeostasis and autophagy.
Biological function summary

SMCR8 is involved in regulating macroautophagy a critical process for cellular maintenance by forming a complex with the C9orf72 protein. This complex ensures proper lysosomal positioning and function impacting the cell's ability to remove damaged organelles and proteins. SMCR8’s activity is essential for maintaining normal lysosomal dynamics and preventing the accumulation of toxic substances within the cell.

Pathways

SMCR8 participates in the autophagy and lysosome pathways. It interacts with several other proteins including UVRAG and Beclin1 which are important for autophagosome formation and maturation. SMCR8 and its associated pathways are important in coordinating proper cellular degradation and recycling processes ensuring cellular stability and function.

SMCR8 has been connected to neurodegenerative conditions such as amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Mutations or dysfunction in SMCR8 can interfere with autophagy contributing to the pathogenesis of these disorders. The interaction between SMCR8 and C9orf72 has been particularly highlighted in relation to ALS as disruptions in this interaction could aggravate disease progression.

产品实验方案

For this product, it's our understanding that no specific protocols are required. You can visit:

靶点信息

Component of the C9orf72-SMCR8 complex, a complex that has guanine nucleotide exchange factor (GEF) activity and regulates autophagy (PubMed : 20562859, PubMed : 27103069, PubMed : 27193190, PubMed : 27559131, PubMed : 27617292, PubMed : 28195531, PubMed : 32303654). In the complex, C9orf72 and SMCR8 probably constitute the catalytic subunits that promote the exchange of GDP to GTP, converting inactive GDP-bound RAB8A and RAB39B into their active GTP-bound form, thereby promoting autophagosome maturation (PubMed : 20562859, PubMed : 27103069, PubMed : 27617292, PubMed : 28195531). The C9orf72-SMCR8 complex also acts as a negative regulator of autophagy initiation by interacting with the ULK1/ATG1 kinase complex and inhibiting its protein kinase activity (PubMed : 27617292, PubMed : 28195531). As part of the C9orf72-SMCR8 complex, stimulates RAB8A and RAB11A GTPase activity in vitro (PubMed : 32303654). Acts as a regulator of mTORC1 signaling by promoting phosphorylation of mTORC1 substrates (PubMed : 27559131, PubMed : 28195531). In addition to its activity in the cytoplasm within the C9orf72-SMCR8 complex, SMCR8 also localizes in the nucleus, where it associates with chromatin and negatively regulates expression of suppresses ULK1 and WIPI2 genes (PubMed : 28195531).
See full target information SMCR8

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