Rabbit Recombinant Monoclonal SEC61A antibody. Suitable for IP, WB, IHC-P and reacts with Human samples. Cited in 13 publications.
pH: 7.2
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
IP | WB | IHC-P | |
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Human | Tested | Tested | Tested |
Mouse | Predicted | Predicted | Predicted |
Rat | Predicted | Predicted | Predicted |
Species | Dilution info | Notes |
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Species Human | Dilution info 1/40 - 1/60 | Notes Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
Species | Dilution info | Notes |
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Species Mouse, Rat | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Human | Dilution info 1/1000 - 1/10000 | Notes - |
Species | Dilution info | Notes |
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Species Mouse, Rat | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/50 - 1/100 | Notes Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
Species | Dilution info | Notes |
---|---|---|
Species Mouse, Rat | Dilution info - | Notes - |
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Component of SEC61 channel-forming translocon complex that mediates transport of signal peptide-containing precursor polypeptides across the endoplasmic reticulum (ER) (PubMed:12475939, PubMed:22375059, PubMed:28782633, PubMed:29719251, PubMed:32814900). Forms a ribosome receptor and a gated pore in the ER membrane, both functions required for cotranslational translocation of nascent polypeptides (PubMed:22375059, PubMed:28782633, PubMed:29719251). May cooperate with auxiliary protein SEC62, SEC63 and HSPA5/BiP to enable post-translational transport of small presecretory proteins (PubMed:22375059, PubMed:29719251). The SEC61 channel is also involved in ER membrane insertion of transmembrane proteins: it mediates membrane insertion of the first few transmembrane segments of proteins, while insertion of subsequent transmembrane regions of multi-pass membrane proteins is mediated by the multi-pass translocon (MPT) complex (PubMed:32820719, PubMed:36261522). The SEC61 channel cooperates with the translocating protein TRAM1 to import nascent proteins into the ER (PubMed:8616892). Controls the passive efflux of calcium ions from the ER lumen to the cytosol through SEC61 channel, contributing to the maintenance of cellular calcium homeostasis (PubMed:28782633). Plays a critical role in nephrogenesis, specifically at pronephros stage (By similarity).
SEC61A, SEC61A1, Protein transport protein Sec61 subunit alpha isoform 1, Sec61 alpha-1
Rabbit Recombinant Monoclonal SEC61A antibody. Suitable for IP, WB, IHC-P and reacts with Human samples. Cited in 13 publications.
pH: 7.2
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
SEC61A also known as Sec61p or protein transport protein Sec61 subunit alpha isoform 1 serves as an important component of the protein translocation process. This protein weighs approximately 54 kDa and is expressed in the endoplasmic reticulum (ER) membrane of eukaryotic cells. SEC61A forms part of the SEC61 complex which operates as a channel for polypeptide chains to enter the ER from the cytosol. It plays a central role in the translocation of nascent polypeptide chains into the ER or their integration into the ER membrane.
The SEC61 complex holds significance in the translocon channel with SEC61A contributing to the determination of ER insertion or membrane integration of proteins. Its function is often associated with the ribosome as the complex forms a conduit for nascent proteins during translation. The SEC61A ensures proper protein localization with the translocon complex acting as a bridge between the ribosome and the ER. It is integral to cellular processes that require precise protein folding modification and targeting within cells.
The role of SEC61A in protein targeting is vital for maintaining various cellular functions. The unfolded protein response (UPR) and the ER-associated degradation (ERAD) pathways depend on SEC61A for the recognition and resolution of misfolded proteins. In these pathways SEC61A interacts with the proteins like BIP and other chaperones involved in monitoring protein folding status and activating the necessary stress responses if unfolded proteins accumulate. Its involvement in these pathways highlights its importance in maintaining cellular homeostasis.
Mutations or dysfunctions of SEC61A contribute to various conditions such as cystic fibrosis and diabetes. Improper function of SEC61A links to defective protein translocation leading to accumulation of misfolded proteins a characteristic observed in cystic fibrosis alongside the CFTR protein. Similarly in diabetes inefficient SEC61A function might disturb insulin production or secretion since SEC61A's role in protein translocation and processing is fundamental. Moreover SEC61A dysfunction can affect proteins like IAPP involved in β-cell amyloid formation further linking it to diabetes pathogenesis.
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Western blot analysis of SEC61A in Daudi cell lysate immunoprecipitated using ab183046 at 1/50 dilution (Lane 1). Lane 2: Negative control.
Secondary antibody: Anti-Rabbit IgG (HRP) specific to the non-reduced form of IgG at 1/1500 dilution.
All lanes: Immunoprecipitation - Anti-SEC61A antibody [EPR14379] (ab183046)
Predicted band size: 52 kDa
All lanes: Western blot - Anti-SEC61A antibody [EPR14379] (ab183046) at 1/5000 dilution
Lane 1: Human fetal brain lysate at 20 µg
Lane 2: Daudi cell lysate at 20 µg
Lane 3: A431 cell lysate at 20 µg
All lanes: Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugate at 1/1000 dilution
Predicted band size: 52 kDa
Observed band size: 49 kDa
Immunohistochemical analysis of paraffin-embedded Human infiltrating duct carcinoma of breast tissue labeling SEC61A with ab183046 at 1/100 dilution followed by prediluted HRP Polymer for Rabbit IgG. Counter stained with Hematoxylin.
Perform heat mediated antigen retrieval with EDTA buffer pH 9 before commencing with IHC staining protocol.
Image collected and cropped by CiteAb under a CC-BY license from the publication
SEC61A western blot using anti-SEC61A antibody [EPR14379] ab183046. Publication image and figure legend from Puri, C., Vicinanza, M., et al., 2018, Dev Cell, PubMed 29634932.
ab183046 was used in this publication in western blot. This may not be the same as the application(s) guaranteed by Abcam. For a full list of applications guaranteed by Abcam for ab183046 please see the product overview.
TfR Is Recruited to LC3 Vesicles in Starvation Conditions(A) HeLa cells transfected with GFP-LC3, were loaded with transferrin Alexa 555 for 1 hr in Hank’s balanced salt solution or full medium and chased for 15 min. The Tf/LC3 and LC3/Tf signal overlaps are shown. Data are means ± SEM, n = 3; two-tailed paired t test, ∗∗∗p < 0.001.(B) HeLa cells treated as in (A) were processed for immunogold labeling on cryosections. Arrows specify autophagosome double membranes, black outer, white inner.(C) HeLa cells starved for 1 hr and loaded with anti-TfR antibody were processed for pre-embedding electron microscopy.(D) HeLa cells treated with ATG2A/B siRNA (left) were processed as in (C). HeLa cells transfected for Flag-ATG4BC74A were loaded with Tf and processed as in (B). LD, lipid droplet. Arrows specify autophagosome double membranes as in (B).(E) HeLa cells treated with control or ATG7 siRNA and/or transfected with ATG7 were processed for immunoblot and the TfR levels measured. Data are means ± SD, n = 3; two-tailed paired t test, ∗∗∗p < 0.001.(F) HeLa cells treated with control or RAB11A or WIPI2 siRNAs were processed as in (E). Data are means ± SD, n = 3; two-tailed paired t test, ∗∗p < 0.01, ∗∗∗p < 0.001.(G) HeLa cells starved for 1 hr, loaded with Ferrofluid-Tf Alexa 488 for 1 hr and chased for 15 min in starvation medium. The cells were then fragmented and the membranes containing Ferrofluid-Tf488 (bound) or not containing Ferrofluid-Tf488 (unbound) were separated and processed for immunoblot (see Figure S5G).(H) HeLa cells transfected with control or ATG2A/B siRNA were processed as in (G). The amount of LC3II in bound fraction in ATG2 knockdown condition is expressed as percentage of control. Data are means ± SEM, n = 3.(I) HeLa cells treated with control or ULK1 siRNA and processed as in (G). The LDH activity was measured in the bound fraction. Data are means ± SEM, n = 3; two-tailed paired t test, ∗∗∗p < 0.001.
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