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Key Documents

HPA008038

Sigma-Aldrich

ANTI-CDK12 antibody produced in rabbit

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Synonym(s):

Anti-CDC2-related protein kinase 7, Anti-CRKRS, Anti-Cdc2-related kinase, arginine/serine-rich, Anti-Cell division cycle 2-related protein kinase 7, Anti-CrkRS

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.43

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

product line

Prestige Antibodies® Powered by Atlas Antibodies

form

buffered aqueous glycerol solution

species reactivity

human

technique(s)

immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:50-1:200

immunogen sequence

GFSAIDTDERNSGPALTESLVQTLVKNRTFSGSLSHLGESSSYQGTGSVQFPGDQDLRFARVPLALHPVVGQPFLKAEGSSNSVVHAETKLQNYGELGPGTTGASSSGAGLHWGGPTQSSAY

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... CRKRS(51755)

General description

Cyclin-dependent kinase 12 (CDK12) is a member of the cyclin-dependent kinase (CDK) family of serine/threonine protein kinases. It is located at 17q12 on the human chromosome. CDK12 is composed of 21 arginine/serine-rich (RS) motifs, a proline-rich motif in between the RS motif, a central kinase domain and a C-terminal region. CDK12 gene encodes a C-terminal repeat domain (CTD) kinase that contains an arginine/serine-rich (RS) domain (CrkRS). It is a 1490 amino acid long and colocalizes with SC35 speckles.

Immunogen

Cell division cycle 2-related protein kinase 7 recombinant protein epitope signature tag (PrEST)

Application

ANTI-CDK12 antibody produced in rabbit has been used in immunohistochemistry.
All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project and as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. We also provide Prestige Antibodies® protocols and other useful information.

Biochem/physiol Actions

Cyclin-dependent kinase 12 (CDK-12) interacts with cyclin L1 and cyclin L2 and regulates alternative splicing. This kinase phosphorylates the CTD of the large subunit of RNA polymerase II and regulates transcription elongation. It forms a link between transcription and splicing machinery. It negatively regulates MAPK pathway and has a role in the resistance to estrogen signaling inhibitors during endocrine therapy.
Cyclin-dependent kinase 12 (CDK12) is a transcription-associated CDK. It plays a role in DNA-damage response, splicing and differentiation. Overexpression and mutation of the CDK12 gene is associated with several malignancies.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.

Linkage

Corresponding Antigen APREST71450

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany

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 Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Low expression of CDK12 in gastric cancer is correlated with advanced stage and poor outcome
Liu M, et al.
Pathology Research and Practice, 12(1), 152962-152962 (2020)
T Jagomast et al.
Histology and histopathology, 18434-18434 (2022-02-12)
Quantifying protein expression in immunohistochemically stained histological slides is an important tool for oncologic research. The use of computer-aided evaluation of IHC-stained slides significantly contributes to objectify measurements. Manual digital image analysis (mDIA) requires a user-dependent annotation of the region
CDK12: an emerging therapeutic target for cancer
Lui G Y L, et al.
Journal of Clinical Pathology, 71(11), 957-962 (2018)
T K Ko et al.
Journal of cell science, 114(Pt 14), 2591-2603 (2001-10-31)
We have isolated and characterised a novel human protein kinase, Cdc2-related kinase with an arginine/serine-rich (RS) domain (CrkRS), that is most closely related to the cyclin-dependent kinase (CDK) family. CrkRS is a 1490 amino acid protein, the largest CDK-related kinase
The emerging roles of CDK12 in tumorigenesis
Paculova H and Kohoutek J
Cell Division, 12(1), 7-7 (2017)

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