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  4. CHST15 Protein, Human (HEK293, His)

CHST15 Protein, Human (HEK293, His)

Cat. No.: HY-P76258
Handling Instructions

The CHST15 protein is a sulfotransferase that catalyzes the transfer of sulfate to GalNAc 4-sulfate in chondroitin sulfate A to form chondroitin sulfate E with GlcA-GalNAc(4,6-SO(4)) units. It also sulfates the unique non-reducing terminal sequence GalNAc(4SO4)-GlcA(2SO4)-GalNAc(6SO4), similar to thrombomodulin chondroitin sulfate. CHST15 Protein, Human (HEK293, His) is the recombinant human-derived CHST15 protein, expressed by HEK293 , with N-His labeled tag. The total length of CHST15 Protein, Human (HEK293, His) is 463 a.a., with molecular weight of 70-80 KDa.

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Description

The CHST15 protein is a sulfotransferase that catalyzes the transfer of sulfate to GalNAc 4-sulfate in chondroitin sulfate A to form chondroitin sulfate E with GlcA-GalNAc(4,6-SO(4)) units. It also sulfates the unique non-reducing terminal sequence GalNAc(4SO4)-GlcA(2SO4)-GalNAc(6SO4), similar to thrombomodulin chondroitin sulfate. CHST15 Protein, Human (HEK293, His) is the recombinant human-derived CHST15 protein, expressed by HEK293 , with N-His labeled tag. The total length of CHST15 Protein, Human (HEK293, His) is 463 a.a., with molecular weight of 70-80 KDa.

Background

CHST15 protein functions as a sulfotransferase with a distinctive role in transferring sulfate from 3'-phosphoadenosine 5'-phosphosulfate (PAPS) to the C-6 hydroxyl group of the GalNAc 4-sulfate residue in chondroitin sulfate A, leading to the formation of chondroitin sulfate E containing GlcA-GalNAc(4,6-SO(4)) repeating units. Additionally, CHST15 transfers sulfate to a unique non-reducing terminal sequence, GalNAc(4SO4)-GlcA(2SO4)-GalNAc(6SO4), resulting in a highly sulfated structure reminiscent of thrombomodulin chondroitin sulfate. Beyond its role in chondroitin sulfate biosynthesis, CHST15 may function as a B-cell receptor involved in BCR ligation-mediated early activation, mediating regulatory signals crucial to B-cell development and the potential regulation of B-cell-specific RAG expression. However, the precise implications of these results in vivo remain unclear. The multifaceted activities of CHST15 highlight its importance in the intricate molecular processes governing chondroitin sulfate modifications and B-cell regulatory pathways, though further research is needed to elucidate its in vivo functions comprehensively.

Species

Human

Source

HEK293

Tag

N-His

Accession

Q7LFX5 (S99-T561)

Gene ID
Molecular Construction
N-term
His
CHST15 (S99-T561)
Accession # Q7LFX5
C-term
Synonyms
Carbohydrate sulfotransferase 15; hBRAG; GalNAc4S-6ST; BRAG
Molecular Weight

70-80 kDa.

Purity

Greater than 95% as determined by reducing SDS-PAGE

Endotoxin Level

<1 EU/μg, determined by LAL method.

Documentation

CHST15 Protein, Human (HEK293, His) 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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The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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CHST15 Protein, Human (HEK293, His)
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HY-P76258
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