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LIN28B Rabbit pAb  (Cat.#:AYP19527)

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Host: RabbitClonality: PolyclonalReactivity: Human,MouseWBIF/ICC
Cat.# AYP19527
Target / gene LIN28B
Host Rabbit
Clonality Polyclonal
Reactivity Human, Mouse
Application WB, IF/ICC

Cat.#:AYP19527

SizePrice
50ul ¥1150.00 Add to cart
100ul ¥2100.00 Add to cart
  • Information

  • Application guide

  • Related products

  • Immunogen

  • Target data

  • Resources

  • Protocols

  • FAQs

Reactivity Human,Mouse
Host Rabbit
Clonality Polyclonal
Isotype IgG
Application WBIF/ICC
Dilution WB: 1:500 - 1:2000
IF/ICC: 1:50 - 1:200
Predicted MW 19kDa/27kDa
Observed MW 28kDa
Format Liquid
Storage Store at -20℃. Avoid freeze / thaw cycles.
Buffer: PBS with 0.01% thiomersal,50% glycerol,pH7.3.
Conjugate Unconjugated
Positive Mouse liver
Subcellular Cytoplasm,Nucleus,nucleolus
Purification Affinity purification

Applications and conditions

Where to start

These starting conditions come from the recommended dilution, validation images, and general assay practice. Titrate for your sample and detection system.

WB Conditions for WB
Recommended dilution 1:500 - 1:2000
Suggested sample / positive control Mouse liver
Key conditions Use a fresh lysate, incubate at the recommended dilution, and check the predicted and observed molecular weight
Expected result Expected signal or band near 28kDa
Controls Include a positive sample, a negative sample, and a secondary or isotype control
IF/ICC Conditions for IF/ICC
Recommended dilution 1:50 - 1:200
Suggested sample / positive control Mouse liver
Key conditions Optimize fixation, permeabilization, and blocking, and include a secondary-only control
Expected result Expected fluorescence localization: Cytoplasm,Nucleus,nucleolus
Controls Include a positive sample, a negative sample, and a secondary or isotype control

Related products

More associated products >>

Immunogen

Immunogen Recombinant fusion protein containing a sequence corresponding to amino acids 161-250 of human LIN28B (NP_001004317.1).
Sequence
View sequence
VANCPHKNVAQPPASSQGRQEAESQPCTSTLPREVGGGHGCTSPPFPQEARAEISERSGRSPQEASSTKSSIAPEEQSKKGPSVQKRKKT

Target data

Background The protein encoded by this gene belongs to the lin-28 family, which is characterized by the presence of a cold-shock domain and a pair of CCHC zinc finger domains. This gene is highly expressed in testis, fetal liver, placenta, and in primary human tumors and cancer cell lines. It is negatively regulated by microRNAs that target sites in the 3' UTR, and overexpression of this gene in primary tumors is linked to the repression of let-7 family of microRNAs and derepression of let-7 targets, which facilitates cellular transformation.
Gene ID 389421
Gene name LIN28B
Swiss Q6ZN17
Synonym LIN28B,CSDD2,LIN28B Rabbit pAb
Expression Expressed at high levels in the placenta and, at mucher lower, in testis and fetal liver (PubMed:16971064). Isoform 1 is only detected in placenta and in moderately and poorly differentiated hepatocellular carcinoma cells (at protein level). Isoform 2 is detected in fetal liver, non-tumor liver tissues, as well as well-differentiated tumor tissues (at protein level). Tends to be up-regulated in triple-negative (ER-,PR-,HER2-) breast tumors, as well as in liver, ovarian, and thyroid carcinomas (PubMed:22118463).
Functions Suppressor of microRNA (miRNA) biogenesis, including that of let-7 and possibly of miR107, miR-143 and miR-200c. Binds primary let-7 transcripts (pri-let-7), including pri-let-7g and pri-let-7a-1, and sequester them in the nucleolus, away from the microprocessor complex, hence preventing their processing into mature miRNA (PubMed:22118463). Does not act on pri-miR21 (PubMed:22118463). The repression of let-7 expression is required for normal development and contributes to maintain the pluripotent state of embryonic stem cells by preventing let-7-mediated differentiation. When overexpressed, recruits ZCCHC11/TUT4 uridylyltransferase to pre-let-7 transcripts, leading to their terminal uridylation and degradation (PubMed:19703396). This activity might not be relevant in vivo, as LIN28B-mediated inhibition of let-7 miRNA maturation appears to be ZCCHC11-independent (PubMed:22118463). Interaction with target pre-miRNAs occurs via an 5'-GGAG-3' motif in the pre-miRNA terminal loop. Mediates MYC-induced let-7 repression (By similarity). When overexpressed, isoform 1 stimulates growth of the breast adenocarcinoma cell line MCF-7. Isoform 2 has no effect on cell growth.
Research area

Resources

Validation data

1 images

Validation images at the top of the page cover WB / IF/ICC.

References

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Send the catalog number, application, sample type, and assay. Support can confirm dilution, controls, and COA or lot documents.

FAQs

Listed applications: WB, IF/ICC. Use the validation images and recommended dilution as a starting point.
Send the catalog number and lot through the inquiry form. Support will help with the lot documents.
Use the recommended conditions as a starting concentration. Sample, fixation, and detection system may need a titration.

Protocols

Protocols
AYP19527