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Epigenetics and Nuclear Signaling DNA / RNA Translation Regulation

Anti-EIF2S1抗体[EIF2a] (ab5369)

  • Datasheet
  • SDS
Reviews (4)Q&A (6)References (59)

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Immunocytochemistry - Anti-EIF2S1 antibody [EIF2a] (ab5369)
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EIF2S1 antibody [EIF2a] (ab5369)
  • Western blot - Anti-EIF2S1 antibody [EIF2a] (ab5369)
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EIF2S1 antibody [EIF2a] (ab5369)
  • Immunocytochemistry - Anti-EIF2S1 antibody [EIF2a] (ab5369)
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EIF2S1 antibody [EIF2a] (ab5369)

Key features and details

  • Mouse monoclonal [EIF2a] to EIF2S1
  • Suitable for: ICC, WB, IHC-P
  • Reacts with: Mouse, Rat, Human, African green monkey
  • Isotype: IgG1

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概述

  • 产品名称

    Anti-EIF2S1抗体[EIF2a]
    参阅全部 EIF2S1 一抗
  • 描述

    小鼠单克隆抗体[EIF2a] to EIF2S1
  • 宿主

    Mouse
  • 经测试应用

    适用于: ICC, WB, IHC-Pmore details
  • 种属反应性

    与反应: Mouse, Rat, Human, African green monkey
  • 免疫原

    Recombinant full length protein (Human).

  • 表位

    not mapped.
  • 阳性对照

    • WB: MCF7, COS-7, PC-12, Jurkat, NIH/3T3, A431 and HeLa cells. IHC: Human colon and breast carcinoma tissue. Human placenta. ICC: HepG2 and A549 cells.
  • 常规说明

    The Life Science industry has been in the grips of a reproducibility crisis for a number of years. Abcam is leading the way in addressing this with our range of recombinant monoclonal antibodies and knockout edited cell lines for gold-standard validation. Please check that this product meets your needs before purchasing.

    If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, along with publications, customer reviews and Q&As

性能

  • 形式

    Liquid
  • 存放说明

    Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
  • 存储溶液

    pH: 7.40
    Preservative: 0.1% Sodium azide
    Constituent: PBS
  • Concentration information loading...
  • 纯度

    Protein A purified
  • 克隆

    单克隆
  • 克隆编号

    EIF2a
  • 同种型

    IgG1
  • 研究领域

    • Epigenetics and Nuclear Signaling
    • DNA / RNA
    • Translation
    • Regulation
    • Epigenetics and Nuclear Signaling
    • DNA / RNA
    • RNA Processing
    • RNAi
    • Epigenetics and Nuclear Signaling
    • RNAi
    • Eukaryotic Initiation factors (eIF's)

相关产品

  • Compatible Secondaries

    • Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) (ab150113)
    • Goat Anti-Mouse IgG H&L (HRP) (ab205719)
  • Isotype control

    • Mouse IgG1, kappa monoclonal [15-6E10A7] - Isotype Control (ab170190)
  • Positive Controls

    • Jurkat whole cell lysate (ab7899)
    • BALB/3T3 whole cell lysate (ab7901)

应用

The Abpromise guarantee

Abpromise™承诺保证使用ab5369于以下的经测试应用

“应用说明”部分 下显示的仅为推荐的起始稀释度;实际最佳的稀释度/浓度应由使用者检定。

应用 Ab评论 说明
ICC
Use a concentration of 1 µg/ml.
WB (4)
1/500 - 1/1000. Detects a band of approximately 36 kDa (predicted molecular weight: 36 kDa).
IHC-P
1/10 - 1/50. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
说明
ICC
Use a concentration of 1 µg/ml.
WB
1/500 - 1/1000. Detects a band of approximately 36 kDa (predicted molecular weight: 36 kDa).
IHC-P
1/10 - 1/50. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.

靶标

  • 功能

    Functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA. This complex binds to a 40S ribosomal subunit, followed by mRNA binding to form a 43S preinitiation complex. Junction of the 60S ribosomal subunit to form the 80S initiation complex is preceded by hydrolysis of the GTP bound to eIF-2 and release of an eIF-2-GDP binary complex. In order for eIF-2 to recycle and catalyze another round of initiation, the GDP bound to eIF-2 must exchange with GTP by way of a reaction catalyzed by eIF-2B.
  • 序列相似性

    Belongs to the eIF-2-alpha family.
    Contains 1 S1 motif domain.
  • 翻译后修饰

    Substrate for at least 4 kinases: EIF2AK1/HRI, EIF2AK2/PKR, EIF2AK3/PERK and EIF2AK4/GCN2. Phosphorylation stabilizes the eIF-2/GDP/eIF-2B complex and prevents GDP/GTP exchange reaction, thus impairing the recycling of eIF-2 between successive rounds of initiation and leading to global inhibition of translation (PubMed:15207627, PubMed:18032499). Phosphorylated; phosphorylation on Ser-52 by the EIF2AK4/GCN2 protein kinase occurs in response to amino acid starvation and UV irradiation.
  • 细胞定位

    Cytoplasmic granule. The cytoplasmic granules are stress granules which are a dense aggregation in the cytosol composed of proteins and RNAs that appear when the cell is under stress. Colocalizes with NANOS3 in the stress granules (By similarity).
  • Target information above from: UniProt accession P05198 The UniProt Consortium
    The Universal Protein Resource (UniProt) in 2010
    Nucleic Acids Res. 38:D142-D148 (2010) .

    Information by UniProt
  • 数据库链接

    • Entrez Gene: 1965 Human
    • Entrez Gene: 13665 Mouse
    • Entrez Gene: 54318 Rat
    • Omim: 603907 Human
    • SwissProt: P05198 Human
    • SwissProt: Q6ZWX6 Mouse
    • SwissProt: P68101 Rat
    • Unigene: 151777 Human
    • Unigene: 196220 Mouse
    • Unigene: 1488 Rat
    see all
  • 别名

    • EIF 2 alpha antibody
    • EIF 2 antibody
    • EIF 2A antibody
    • EIF 2alpha antibody
    • eIF-2-alpha antibody
    • eIF-2A antibody
    • EIF-2alpha antibody
    • EIF2 alpha antibody
    • EIF2 antibody
    • EIF2A antibody
    • EIF2S1 antibody
    • Eukaryotic translation initiation factor 2 subunit 1 alpha 35kDa antibody
    • Eukaryotic translation initiation factor 2 subunit 1 alpha antibody
    • Eukaryotic translation initiation factor 2 subunit 1 antibody
    • Eukaryotic translation initiation factor 2 subunit alpha antibody
    • IF2A_HUMAN antibody
    see all

图片

  • Immunocytochemistry - Anti-EIF2S1 antibody [EIF2a] (ab5369)
    Immunocytochemistry - Anti-EIF2S1 antibody [EIF2a] (ab5369)

    Immunofluorescence analysis of eIF2a was done on 70% confluent log phase A549 cells. The cells were fixed with 4% paraformaldehyde for 15 minutes, permeabilized with 0.25% Triton™ X-100 for 10 minutes, and blocked with 5% BSA for 1 hour at room temperature. The cells were labeled with ab5369 1:250 dilution in1% BSA and incubated for 3 hours at room temperature and then labeled with Goat anti-Mouse IgG (H+L) Superclonal Secondary Antibody, Alexa Fluor® 488 conjugate at a dilution of 1:2000 for 45 minutes at room temperature (Panel a: green). Nuclei (Panel b: blue) were stained with SlowFade® Gold Antifade Mountant with DAPI. F-actin (Panel c: red) was stained with Rhodamine Phalloidin (1:300). Panel d is a merged image showing Cytoplasmic localization. Panel e is a no primary antibody control. The images were captured at 60X magnification.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EIF2S1 antibody [EIF2a] (ab5369)
    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EIF2S1 antibody [EIF2a] (ab5369)

    Immunohistochemistry analysis of EIF 2ALPHA (EIF2A) showing staining in the cytoplasm of paraffin-embedded human colon carcinoma (right) compared to a negative control without primary antibody (left). To expose target proteins, antigen retrieval was performed using 10mM sodium citrate (pH 6.0), microwaved for 8-15 min. Following antigen retrieval, tissues were blocked in 3% H2O2-methanol for 15 min at room temperature, washed with ddH2O and PBS, and then probed with ab5369.

  • Western blot - Anti-EIF2S1 antibody [EIF2a] (ab5369)
    Western blot - Anti-EIF2S1 antibody [EIF2a] (ab5369)
    All lanes : Anti-EIF2S1 antibody [EIF2a] (ab5369)

    Lane 1 : COS-7 (african green monkey kidney fibroblast-like cell line) whole cell lysate at 20 µg
    Lane 2 : MCF7 (human breast adenocarcinoma cell line) whole cell lysate at 20 µg
    Lane 3 : PC-12 (rat adrenal gland pheochromocytoma cell line) whole cell lysate at 20 µg
    Lane 4 : HeLa (human epithelial cell line from cervix adenocarcinoma) whole cell lysate
    Lane 5 : Jurkat (human T cell leukemia cell line from peripheral blood) whole cell lysate
    Lane 6 : NIH/3T3 (mouse embryonic fibroblast cell line) whole cell lysate
    Lane 7 : A431 (human epidermoid carcinoma cell line) whole cell lysate

    Secondary
    Lanes 1-4 & 6-7 : Goat anti-Mouse IgG (H+L) Secondary Antibody, HRP conjugate at 1/4000 dilution
    Lane 5 : Goat anti-Mouse IgG (H+L) Secondary Antibody, HRP conjugate

    Predicted band size: 36 kDa

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EIF2S1 antibody [EIF2a] (ab5369)
    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EIF2S1 antibody [EIF2a] (ab5369)

    Immunohistochemical analysis of human colon carcinoma (right) compared to a negative control (left) using ab5369 at the dilution 1/10.

  • Immunocytochemistry - Anti-EIF2S1 antibody [EIF2a] (ab5369)
    Immunocytochemistry - Anti-EIF2S1 antibody [EIF2a] (ab5369)
    ICC/IF image of ab5369 stained HepG2 cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab5369, 5µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-mouse IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EIF2S1 antibody [EIF2a] (ab5369)
    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EIF2S1 antibody [EIF2a] (ab5369)
    Ab5369 staining EIF2S1 in human placenta. Staining is localised to the cytoplasm.
    Left panel: with primary antibody at 2 ug/ml. Right panel: isotype control.
    Sections were stained using an automated system DAKO Autostainer Plus , at room temperature. Sections were rehydrated and antigen retrieved with the Dako 3-in-1 AR buffer citrate pH 6.0 in a DAKO PT Link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 minutes. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS), then incubated with primary antibody for 20 minutes, and detected with Dako Envision Flex amplification kit for 30 minutes. Colorimetric detection was completed with diaminobenzidine for 5 minutes. Slides were counterstained with Haematoxylin and coverslipped under DePeX. Please note that for manual staining we recommend to optimize the primary antibody concentration and incubation time (overnight incubation), and amplification may be required.

实验方案

  • Immunohistochemistry protocols
  • Immunocytochemistry & immunofluorescence protocols
  • Western blot protocols

Click here to view the general protocols

数据表及文件

  • SDS download

  • Datasheet download

    Download

文献 (59)

发表研究结果有使用 ab5369?请让我们知道,以便我们可以引用本数据表中的参考文章。

ab5369 被引用在 59 文献中.

  • Vasudevan D  et al. A protein-trap allele reveals roles for Drosophila ATF4 in photoreceptor degeneration, oogenesis and wing development. Dis Model Mech 15:N/A (2022). PubMed: 34919148
  • Borgo C  et al. Targeting the E1 ubiquitin-activating enzyme (UBA1) improves elexacaftor/tezacaftor/ivacaftor efficacy towards F508del and rare misfolded CFTR mutants. Cell Mol Life Sci 79:192 (2022). PubMed: 35292885
  • Zhuo L  et al. [Estradiol inhibits differentiation of mouse macrophage into a pro-inflammatory phenotype by upregulating the IRE1α-XBP1 signaling axis]. Nan Fang Yi Ke Da Xue Xue Bao 42:432-437 (2022). PubMed: 35426809
  • Kunimasa K  et al. Spautin-1 inhibits mitochondrial complex I and leads to suppression of the unfolded protein response and cell survival during glucose starvation. Sci Rep 12:11533 (2022). PubMed: 35798783
  • Pinch M  et al. General control nonderepressible 1 interacts with cationic amino acid transporter 1 and affects Aedes aegypti fecundity. Parasit Vectors 15:383 (2022). PubMed: 36271393
View all Publications for this product

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1-10 of 10 Abreviews or Q&A

Western blot abreview for Anti-EIF2S1 antibody [EIF2a]

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Abreviews
Abreviews
abreview image
Application
Western blot
Sample
Mouse Tissue lysate - whole (Liver)
Loading amount
60 µg
Specification
Liver
Gel Running Conditions
Reduced Denaturing (gel 10%)
Blocking step
Milk as blocking agent for 2 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C
Read More
The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

Abcam user community

Verified customer

提交于 Jan 24 2012

Western blot abreview for Anti-EIF2S1 antibody [EIF2a]

Inconclusive
Abreviews
Abreviews
Application
Western blot
Sample
Fruit fly (Drosophila melanogaster) Cell lysate - whole cell (S2R+ cells)
Loading amount
25 µg
Specification
S2R+ cells
Gel Running Conditions
Reduced Denaturing (4-20% tris-glycine)
Blocking step
normal horse serum as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 20°C
Read More
The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

DR. Natalie Farny

Verified customer

提交于 Oct 22 2009

Western blot abreview for Anti-EIF2S1 antibody [EIF2a]

Excellent
Abreviews
Abreviews
abreview image
Application
Western blot
Sample
Human Cell lysate - whole cell (HeLa cell line)
Loading amount
20 µg
Specification
HeLa cell line
Gel Running Conditions
Reduced Denaturing (12% gel)
Blocking step
Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C
Read More
The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

Dr. Mirjam Eckert

Verified customer

提交于 Apr 02 2009

Western blot abreview for Anti-EIF2S1 antibody [EIF2a]

Excellent
Abreviews
Abreviews
abreview image
Application
Western blot
Sample
Mouse Cell lysate - whole cell (RAW 264.7 murine macrophage)
Loading amount
10 µg
Specification
RAW 264.7 murine macrophage
Blocking step
Other as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5%
Read More
The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

Abcam user community

Verified customer

提交于 Oct 23 2006

Question

Dear, My name is Tânia Lourenço and i am a master's student in Molecular and Cell Biology. I am contacting you because i have some questions about Fyn (phospho Y530) antibody (ab5369). I would like to know if the antibody can recognize other src proteins and if you could please tell me for sure that the antibody recognizes only the Fyn and no other proteins.  I thank you for your time. Yours sincerely,

Read More

Abcam community

Verified customer

Asked on Sep 08 2011

Answer

Thank you for your enquiry. I am sorry it has taken some time to confirm this information with the originator for this antibody. I am sorry to confirm that the only cross reactivity data we have for ab5369 Anti-EIF2S1 antibody [EIF2a] is that it recognizes eIF2-alpha from human, mouse, and rat samples. The epitope information is proprietary for this particular product and I am sorry we are not able to provide the details on this occasion. I would like to reassure you that this antibody is covered by our Abpromise guarantee in the tested applications and species listed on the datasheet. This means we are pleased to provide a refund, credit note or free of charge replacement if the antibody is not working in the tested applications and species. The guarantee period is for 6 months after purchase. There are 3 references available on the use of this antibody that I hope may be helpful to you: Ramos-Casteneda et al. (2005) J. Biol. Chem. 280 (10) 9467-9473 Trottier, M. et al. (2005) Virology 333(2): 215-225 Zhang, P. et al. (2002) Molec. Cell. Biol. 22 (11): 3864-3874 I am sorry we have no more data for your requriements on this occasion. Please do not hesitate to contact me if you have any other questions.

Read More

Abcam Scientific Support

回复于 Sep 08 2011

Question

I have purchased a number of antibodies from Abcam and they have all been good. I have couple of questions which i would like you to assist me with, as i have checked your website and found no answers. The Rabbit polyclonal eIF4E antibody (ab1126) does it detect total eIF4E ie the non phospho and the phospho or just the non phospho form The Mouse Monoclonal eIF2a antibody (ab5369) does it detect total eIF2a ie the non phospho and the phospo or just the non phospho form

Read More

Abcam community

Verified customer

Asked on Feb 05 2007

Answer

Thank you for your enquiry. I can confirm that both these eIF2a antibodies (ab1126, ab5369)will detect both phosphorylated and de-phosphorylated forms of the protein. I hope this information is helpful. Should you have any further questions, please do not hesitate to contact us again.

Read More

Abcam Scientific Support

回复于 Feb 09 2007

Question

No, Swissprot, EBI's and NCBI's websites are riddled with mistakes and faulty information. So, here's the link you should look at: http://www.chem.qmul.ac.uk/iubmb/misc/trans.html It is IUBMB that has the naming rights to translation factors, no one else. Thank you for your time and letting help you correct other's mistakes.

Read More

Abcam community

Verified customer

Asked on May 01 2006

Answer

Thank you for this information and clarification. I have changed the online datasheet to reflect the fact that the antibody is raised against eIF2 alpha. Thank you again for your assistance.

Read More

Abcam Scientific Support

回复于 May 04 2006

Question

The antibody products stated to be anti eIF-2A really against eIF2alpha. They are two entirely different proteins. ab4837 ab5369 ab19288

Read More

Abcam community

Verified customer

Asked on Apr 27 2006

Answer

Thank you for your enquiry. Our designation comes directly from Swiss-Prot where the synonyms for the protein are as follows: Eukaryotic translation initiation factor 2 alpha subunit eIF-2-alpha EIF-2alpha EIF-2A I believe the datasheet is correct in identifying the protein that the antibody is raised against. I hope this information helps, please do not hesitate to contact us if you need any more advice or information.

Read More

Abcam Scientific Support

回复于 May 01 2006

Question

I see that you have three antibodies to eIF2A. I'm particularly interested in an antibody that reacts with the c terminal region of eIF2A (near aa 214-234). antibodies ab4837 and ab19288 apparently react with the n-terminal region (viz., phosphorylated S52 or s51(?)). antibody ab5369, on trhe other hand, was developed against the whole protein, but do you have any ideas as to the location of the epitope. If the epitope of the latter antibody is located in the c-terminal half to eIF2A, it may suit my needs. please let me know if you have any ideas as to location of the epitope of ab5369. thank you

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Abcam community

Verified customer

Asked on Apr 14 2005

Answer

We have received the following information from the source of this antibody: "The Mouse (monoclonal) anti-eIF2alpha antibody ab5369 clone EIF2alpha was made using recombinant protein. There is unfortunately no information on the epitope or region the antibody recognizes. The following references cite the antibody: Ramos-Castaneda J, et al (2005) J. Biol. Chem. 280(10):9467-9473. Trottier MD, et al (2005) Virology 333:215-225. Zhang, et al (2002) Mol. Cell. Biol. 22(11):3864-3874. Please do not hesitate to contact us again if you require further information,

Read More

Abcam Scientific Support

回复于 Apr 19 2005

Question

I am interested in the mouse monoclonal Ig against eIF2alpha (ab5369). A western blot prepared from cell lysates is shown on the data sheet (HeLa) and while the Ig concentration used for the western blot is shown, the amount of loaded target is not discussed. Was the total protein loaded for each lysate determined before loading the gel? What is the sensitivity of the Ig? How much lysate was loaded (total protein - ug's/ well; or in terms of starting cell #s). We are interested in the antibody and would use it in assays where we have 5 - 15 micrograms of TOTAL HeLa cell lysate loaded/ well (lysate prepared from 5 x10EE4 - 1 x 10EE5 cells). We don't want to spend money on an Ig that is insensitive and cannot detect eIF2alpha in these assays.

Read More

Abcam community

Verified customer

Asked on Nov 19 2003

Answer

I enquired with the supplier of ab5369 and they were able to provide me with the following information: approximately 30-40 micrograms of lysate was loaded. If you have any more questions, do not hesitate to contact us again.

Read More

Abcam Scientific Support

回复于 Nov 24 2003

Please note: All products are "FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES"
For licensing inquiries, please contact partnerships@abcam.com

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研究类别(A-Z)
  • 肿瘤研究
  • 心血管研究
  • 细胞生物学
  • 发育生物学
  • 染色质及细胞核信号转导研究
  • 免疫学
  • 代谢
  • 微生物学
  • 神经生物学
  • 信号转导研究
  • 干细胞研究
产品种类(A-Z)
  • 一抗
  • 二抗
  • 生化试剂
  • 亚类对照
  • 流式细胞仪多色选择器
  • 试剂盒
  • 内参对照
  • 细胞裂解液
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