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Key Documents

WH0007150M1

Sigma-Aldrich

Monoclonal Anti-TOP1 antibody produced in mouse

clone 1A1, purified immunoglobulin, buffered aqueous solution

Synonym(s):

Anti-TOPI, Anti-topoisomerase (DNA) I

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

conjugate

unconjugated

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

1A1, monoclonal

form

buffered aqueous solution

species reactivity

human

technique(s)

ELISA: suitable
immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
western blot: 1-5 μg/mL

isotype

IgG1κ

GenBank accession no.

NM_003286

UniProt accession no.

P11387

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... TOP1(7150)

General description

The gene TOP1 (DNA topoisomerase 1) is mapped to human chromosome 20q12-q13.1. The protein localizes in the nucleus.

Immunogen

TOP1 (NP_003277, 692 a.a. ~ 765 a.a) partial recombinant protein with GST tag. MW of the GST tag alone is 26 KDa.

Sequence
QRLEEQLMKLEVQATDREENKQIALGTSKLNYLDPRITVAWCKKWGVPIEKIYNKTQREKFAWAIDMADEDYEF

Biochem/physiol Actions

DNA topoisomerases cause single (type-1) or double (type-2) strand DNA breaks, leading to DNA relaxation. They control DNA replication, transcription, recombination and chromatin remodeling. TOP1 (DNA topoisomerase 1) binds to the promoters and thereby induces nucleosome disassembly, histone acetylation and gene expression. Camptothecin is a non-competitive TOP1 inhibitor. TOP1 also controls alternative splicing through phosphorylation of serine/arginine-rich proteins. It is up-regulated in non-small cell lung cancer (NSCLC).

Physical form

Solution in phosphate buffered saline, pH 7.4

Legal Information

GenBank is a registered trademark of United States Department of Health and Human Services

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Elevated expression levels of NCOA3, TOP1, and TFAP2C in breast tumors as predictors of poor prognosis
Chen Zhao
Cancer, 98 (2003)
Correlation between topoisomerase I and tyrosyl-DNA phosphodiesterase 1 activities in non-small cell lung cancer tissue
Ann-Katrine Jakobsen
Experimental and Molecular Pathology, 99 (2015)
Sumoylation of topoisomerase I is involved in its partitioning between nucleoli and nucleoplasm and its clearing from nucleoli in response to camptothecin
Prasad Rallabhandi
The Journal of Biological Chemistry, 27 (2002)
Salim Khiati et al.
Molecular pharmacology, 86(2), 193-199 (2014-06-04)
Lamellarin D (Lam-D) is a hexacyclic pyrole alkaloid isolated from marine invertebrates, whose biologic properties have been attributed to mitochondrial targeting. Mitochondria contain their own DNA (mtDNA), and the only specific mitochondrial topoisomerase in vertebrates is mitochondrial topoisomerase I (Top1mt).
Rhythmic binding of Topoisomerase I impacts on the transcription of Bmal1 and circadian period.
Yoshiaki Onishi
Nucleic Acids Research, 40 (2012)

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