Purity

≥ 90% as determined by SDS-PAGE.

Endotoxin

Less than 1.0 EU/ug as determined by LAL method.

Activity

Measured by its binding ability in a functional ELISA. Immobilized Human KAAG1 at 2 μg/mL can bind Anti-KAAG1 recombinant antibody(CSB-RA871385MA1HU). The EC50 is 2.040-2.284 ng/mL.

Target Names

KAAG1

Uniprot No.

Q9UBP8

Alternative Names

RU2AS

Species

Homo sapiens (Human)

Source

E.coli

Expression Region

1-84aa

Target Protein Sequence

MDDDAAPRVEGVPVAVHKHALHDGLRQVAGPGAAAAHLPRWPPPQLAASRREAPPLSQRPHRTQGAGSPPETNEKLTNPQVKEK

Mol. Weight

15.9 kDa

Protein Length

Full Length

Tag Info

C-terminal 6xHis-tagged

Form

Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.

Buffer

Lyophilized from a 0.2 μm sterile filtered 20 mM Tris-HCl, 0.5 M NaCl, 6% Trehalose, pH 8.0

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

3-7 business days

Notes

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Datasheet & COA

Please contact us to get it.

Description

KAAG1, a kidney-associated antigen implicated in renal cell carcinoma and other malignancies, presents challenges for immunological studies due to its small size and limited commercial availability in validated formats. This full-length construct (aa 1–84) demonstrates robust antibody-binding activity with an EC50 of 2.040–2.284 ng/mL in functional ELISA against anti-KAAG1 recombinant antibody, confirming proper epitope presentation for immunoassay development and antibody screening workflows. The C-terminal His tag enables straightforward purification while maintaining the native N-terminus critical for antigen recognition, and bacterial expression yields material suitable for high-throughput applications where mammalian glycosylation is not required. With purity exceeding 90% by SDS-PAGE and endotoxin levels below 1.0 EU/μg, this protein supports use in binding assays, ELISA standard curve generation, and as a positive control in cancer biomarker validation studies targeting KAAG1 expression.

Code	CSB-EP871385HU
Abbreviation	Recombinant Human KAAG1 protein (Active)
MSDS	MSDS Datasheet
Size	$388
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Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel. Activity Measured by its binding ability in a functional ELISA. Immobilized Human KAAG1 at 2μg/mL can bind Anti-KAAG1 recombinant antibody(CSB-RA871385MA1HU)，the EC₅₀ is 2.040-2.284 ng/mL. Biological Activity Assay
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Recombinant Human Kidney-associated antigen 1 (KAAG1) (Active)

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