Topoisomerase I Antibody (YA2237)

Cat. No.: HY-P82492: Data Sheet COA
SDS
User Guide for Antibodies
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Topoisomerase I Antibody (YA2237) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Topoisomerase I.

For research use only. We do not sell to patients.

Size	Stock	Quantity
Free Sample	Apply now
10 μL	In-stock	Estimated Time of Arrival: December 31
50 μL	In-stock	Estimated Time of Arrival: December 31
100 μL	In-stock	Estimated Time of Arrival: December 31
250 μL	Get quote

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Topoisomerase I Antibody (YA2237) Featured Recommendations:

WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
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Background
Documentation

Description

Topoisomerase I Antibody (YA2237) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Topoisomerase I.

Host

Rabbit

Clonality

Recombinant, Monoclonal

Molecular Weight

Predicted band size: 91 kDa;

Observed band size: 91 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human, Mouse, Rat

SwissProt ID

P11387

Gene ID

7150 [NCBI]

Immunogen

A synthetic peptide of human Topoisomerase I aa2-15.

Application &
Dilution Ratio

Application	Dilution Ratio
WB WB: Western Blot	1:500-1:1000
IHC-P IHC-P: Immunohistochemistry-Paraffin	1:50-1:100
IHC-F IHC-F: Immunohistochemistry-Frozen	1:50-1:100
ICC/IF ICC/IF: Immunocytochemistry/Immunofluorescence	1:50-1:200

Sensitivity	Endogenous	Purity	Affinity Purified
Conjugation	Non-conjugated	Modification	Unmodified
Isotype	IgG

Appearance

Liquid

Formulation

Supplied in 50mM Tris-Glycine(pH 7.4), 0.15M NaCl, 40% Glycerol, 0.01% Sodium azide and 0.05% BSA

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Verification Image

ALL ICC IHC-P

Immunocytochemistry analysis of Hela cells labeling Topoisomerase I Antibody (HY-P82492) at 1/50 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 for 10 minutes at room temperature, then blocked with QuickBlock™ Blocking Buffer for Immunol Staining for 10 min at room temperature. Cells were then incubated with Topoisomerase I Antibody (HY-P82492) at 1/50 dilution in QuickBlock™ Blocking Buffer for Immunol Staining at 4 ℃. Alexa Fluor® 488-conjugated AffiniPure Goat Anti-Rabbit IgG H&L（HY-P8002, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).
Immunocytochemistry analysis of MCF7 cells labeling Topoisomerase I Antibody (HY-P82492) at 1/50 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 for 10 minutes at room temperature, then blocked with QuickBlock™ Blocking Buffer for Immunol Staining for 10 min at room temperature. Cells were then incubated with Topoisomerase I Antibody (HY-P82492) at 1/50 dilution in QuickBlock™ Blocking Buffer for Immunol Staining at 4 ℃. Alexa Fluor® 488-conjugated AffiniPure Goat Anti-Rabbit IgG H&L（HY-P8002, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).
Immunohistochemical analysis of paraffin-embedded Rat brain tissue using Topoisomerase I Antibody (YA2237). The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 2 minutes. The tissues were blocked in QuickBlock for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HY-P82492, 1/100) in 4℃ overnight. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded Rat brain tissue using Topoisomerase I Antibody (YA2237). The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 2 minutes. The tissues were blocked in QuickBlock for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HY-P82492, 1/100) in 4℃ overnight. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

Background

Function：Releases the supercoiling and torsional tension of DNA introduced during the DNA replication and transcription by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA-(3'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 5'-OH DNA strand. The free DNA strand then rotates around the intact phosphodiester bond on the opposing strand, thus removing DNA supercoils. Finally, in the religation step, the DNA 5'-OH attacks the covalent intermediate to expel the active-site tyrosine and restore the DNA phosphodiester backbone (By similarity). Regulates the alternative splicing of tissue factor (F3) pre-mRNA in endothelial cells. Involved in the circadian transcription of the core circadian clock component BMAL1 by altering the chromatin structure around the ROR response elements (ROREs) on the BMAL1 promoter

Subcellular Localization：Nucleus, nucleolus; Nucleus, nucleoplasm

Expression：
Tissue_specificity:Endothelial cells

Subunit：Monomer. Interacts with ERCC6 (PubMed:26030138). Interacts with TPRN; TPRN interacts with a number of DNA damage response proteins, is recruited to sites of DNA damage and may play a role in DNA damage repair (PubMed:23213405)

RRID

AB_3104599

Database

Entrez Gene: 7150 Human ; 21969 Mouse ; 64550 Rat

SwissProt: P11387 Human ; Q04750 Mouse ; Q9WUL0 Rat

OMIM: 126420 Human

Research Field

Epigenetics and Nuclear Signaling

Synonyms

TOP1; DNA topoisomerase 1; DNA topoisomerase I

Documentation

Select Batch:

Data Sheet (235 KB) SDS (251 KB)

COA (205 KB)

User Guide for Antibodies (1077 KB)

Topoisomerase I Antibody (YA2237) Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Topoisomerase I Antibody (YA2237)

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Background

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Topoisomerase I Antibody (YA2237) Related Classifications

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