Human PIWIL1/HIWI Antibody

Catalog #: MAB6548 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB6548
MAB6548-SP

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Human PIWIL1/HIWI Antibody Summary

Species Reactivity

Human

Specificity

Detects human PIWIL1/HIWI in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human (rh) PIWIL2 or rhPIWIL4 is observed.

Source

Monoclonal Mouse IgG₁ Clone # 585509

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant human PIWIL1/HIWI
Arg82-Thr290
Accession # NP_004755

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration

Sample

Immunocytochemistry

8-25 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Immunocytochemistry

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PIWIL1/HIWI in NCI‑N87 Human Cell Line. PIWIL1/HIWI was detected in immersion fixed NCI-N87 human gastric carcinoma cell line using Mouse Anti-Human PIWIL1/HIWI Monoclonal Antibody (Catalog # MAB6548) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to the cytoplasm in colonies of NCI-N87 cells. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Sterile PBS to a final concentration of 0.5 mg/mL.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: PIWIL1/HIWI

HIWI (human homolog of drosophila piwi), also called PIWIL1 (piwi-like 1) is an 861 amino acid, 99 kDa (predicted) cytoplasmic protein of the PIWI subgroup of the Argonaute family. PIWI domains bind a class of ~29-30 nucleotide RNAs termed piRNAs (piwi domain-binding RNAs). PIWIL1 orthologs are expressed with piRNAs in germ cells and are essential for spermatogenesis in mice. CD34⁺ hematopoietic progenitor cell PIWIL1 is downregulated upon differentiation. When overexpressed in leukemic cell lines, PIWIL1 inhibits growth and induces apoptosis. Human PIWIL1 shares 95% amino acid sequence identity with mouse and rat PIWIL1.

Long Name

Piwi-like Protein 1

Entrez Gene IDs

9271 (Human)

Alternate Names

HIWI; HIWIpiwi homolog; MIWI; piwi (Drosophila)-like 1; PIWI; PIWIL1; piwi-like 1 (Drosophila); piwi-like protein 1

Product Datasheets

Product Datasheet

COA

SDS

Related Research Areas

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