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Key Documents

WH0000875M1

Sigma-Aldrich

Monoclonal Anti-CBS antibody produced in mouse

clone 3E1, purified immunoglobulin, buffered aqueous solution

Synonym(s):

Anti-HIP4, Anti-cystathionine-beta-synthase

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

Quality Level

conjugate

unconjugated

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

3E1, monoclonal

form

buffered aqueous solution

species reactivity

human

technique(s)

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

isotype

IgG2aκ

GenBank accession no.

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... CBS(875)

General description

Cystathionine-β-synthase (CBS) also known as histone promoter control protein Hip4, is encoded by the gene mapped to human chromosome 21q22.3. CBS is a homotetramer containing 63kDa subunits. The encoded protein comprises C-terminal domain with a negative regulatory region, the middle domain with the catalytic core and heme-containing N-terminal domain.
The protein encoded by this gene acts as a homotetramer to catalyze the conversion of homocysteine to cystathionine, the first step in the transsulfuration pathway. The encoded protein is allosterically activated by adenosyl-methionine and uses pyridoxal phosphate as a cofactor. Defects in this gene can cause cystathionine beta-synthase deficiency (CBSD), which can lead to homocystinuria. (provided by RefSeq)

Immunogen

CBS (NP_000062, 1 a.a. ~ 100 a.a) partial recombinant protein with GST tag. MW of the GST tag alone is 26 KDa.

Sequence
MPSETPQAEVGPTGCPHRSGPHSAKGSLEKGSPEDKEAKEPLWIRPDAPSRCTWQLGRPASESPHHHTAPAKSPKILPDILKKIGDTPMVRINKIGKKFG

Biochem/physiol Actions

Cystathionine-β-synthase (CBS) catalyzes the first step in the transsulfuration pathway, where serine and homocysteine is converted to cystathionine and water. In addition, it also acts as a catalyst for various alternative reactions involved in the synthesis of hydrogen sulfide, a novel neuromodulator in the brain. Deficiency of the gene is associated with the development of an autosomal recessive disorder, homocystinuria.

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 Code

10 - Combustible liquids

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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Structure of human cystathionine beta-synthase: a unique pyridoxal 5'-phosphate-dependent heme protein.
Meier M
The Embo Journal, 20, 3910-3916 (2001)
J Spencer Hauck et al.
Communications biology, 7(1), 9-9 (2024-01-04)
There are limited therapeutic options for patients with advanced prostate cancer (PCa). We previously found that heat shock factor 1 (HSF1) expression is increased in PCa and is an actionable target. In this manuscript, we identify that HSF1 regulates the
The role of cystathionine beta-synthase in homocysteine metabolism.
Jhee KH
Antioxidants & Redox Signaling, 7, 813-822 (2005)
Ana Hipólito et al.
Antioxidants (Basel, Switzerland), 13(1) (2024-01-22)
Lung cancer is a lethal disease with no truly efficient therapeutic management despite the progresses, and metabolic profiling can be a way of stratifying patients who may benefit from new therapies. The present study is dedicated to profiling cysteine metabolic

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