Product Name: KHS1-pS174
Product Number: AB-PK671
Size: 25 µg      Price:89.00
      $US
Target Full Name: Kinase homologous to SPS1/STE20 (MAP kinase kinase kinase protein-serine kinase 5 (MEKKK5)

Target Alias: GCKR; Germinal center kinase-related; Germinal center kinase-related enzyme; KHS; Kinase KHS1; M4K5; MAP4K5; MAPKKKK5; Q9Y4K4; ENSG00000012983

Product Type Specific: Protein kinase phosphosite-specific antibody

Antibody Code: PK671

Antibody Target Type: Phosphosite-specific

Antibody Phosphosite: S174

Protein UniProt: Q9Y4K4

Protein SigNET: Q9Y4K4

Antibody Type: Polyclonal

Antibody Host Species: Rabbit

Antibody Immunogen Source: Human KHS1 (MAP4K5; KHS) sequence peptide Cat. No.: PE-04AND99

Antibody Immunogen Sequence: KRK(pS)FIG(bA)C

Antibody Immunogen Description: Corresponds to amino acid residues K171 to G177; In the protein kinase catalytic domain activation T loop region between subdomains VII and VIII.

Production Method: The immunizing peptide was produced by solid phase synthesis on a multipep peptide synthesizer and purified by reverse-phase hplc chromatography. Purity was assessed by analytical hplc and the amino acid sequence confirmed by mass spectrometry analysis. This peptide was coupled to KLH prior to immunization into rabbits. New Zealand White rabbits were subcutaneously injected with KLH-coupled immunizing peptide every 4 weeks for 4 months. The sera from these animals was applied onto an agarose column to which the immunogen peptide was thio-linked. Antibody was eluted from the column with 0.1 M glycine, pH 2.5. Subsequently, the antibody solution was neutralized to pH 7.0 with saturated Tris.This antibody was also subject to negative purification over phosphotyrosine-agarose.

Antibody Modification: Unconjugated. Contact KInexus if you are interest in having the antibody biotinylated or coupled with fluorescent dyes.

Antibody Concentration: 1 mg/ml

Storage Buffer: Phosphate buffered saline pH 7.4, 0.05% Thimerasol

Storage Conditions: For long term storage, keep frozen at -40°C or lower. Stock solution can be kept at +4°C for more than 3 months. Avoid repeated freeze-thaw cycles.

Product Use: Western blotting | Antibody microarray

Antibody Dilution Recommended: 2 µg/ml for immunoblotting

Antibody Potency: Weak immunoreactivity of a target-sized protein by Western blotting in sea star oocytes. Very strong immunoreactivity with immunogen peptide on dot blots.

Antibody Species Reactivity: Human

Antibody Positive Control: The observed molecular mass of the processed target protein on SDS-PAGE gels is reported to be around 85-100 kDa.

Antibody Specificity: Medium

Antibody Cross Reactivity: Many cross-reactive proteins detected in sea star oocytes, including a strongly immunoreactive 150 kDa protein.

Related Product 1: KHS1-pS174 blocking peptide

Related Product 2: KHS1-ANT pan-specific antibody (Cat. No.: AB-NK089-2)

Scientific Background: KHS1 (MAP4K5) is a protein-serine/threonine kinase of the STE group and STE20 family. It has been proposed to be upstream of the JUN N-terminal pathway and may respond to environmental stresses. A mutation in KHS1, K49R, inhibits the kinase phosphotransferase activity and inhibits downstream JNK proteins.
Figure 1. Epitope mapping of KHS1-pS174 antibody with similar phosphopeptides on dot blots.


Figure 2. Identification of phosphosites related to KHS1-pS174.