Human Cathepsin H Antibody

Catalog # Availability Size / Price Qty
AF7516
AF7516-SP
Detection of Human Cathepsin H by Western Blot.
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Citations (1)
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Human Cathepsin H Antibody Summary

Species Reactivity
Human
Specificity
Detects human Cathepsin H in direct ELISAs and Western blots. In direct ELISAs, approximately 15% cross-reactivity with recombinant mouse Cathepsin H is observed, and less than 1% cross-reactivity with recombinant human Cathepsin L2 is observed.
Source
Polyclonal Sheep IgG
Purification
Antigen Affinity-purified
Immunogen
Chinese hamster ovary cell line CHO-derived recombinant human Cathepsin H
Ala23-Val335
Accession # CAA34734
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
0.2 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Example

Western Blot Detection of Human Cathepsin H by Western Blot. View Larger

Detection of Human Cathepsin H by Western Blot. Western blot shows lysates of HepG2 human hepatocellular carcinoma cell line, A431 human epithelial carcinoma cell line, human kidney tissue, and human lung tissue. PVDF membrane was probed with 0.2 µg/mL of Sheep Anti-Human Cathepsin H Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7516) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Cathepsin H at approximately 28 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Sterile PBS to a final concentration of 0.2 mg/mL.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Cathepsin H

Cathepsin H (CTSH; alos CPSB) is a 28-30 kDa ubiquitously expressed member of the peptidase C1 family of cysteine lysosomal enzymes. Depending upon the isoform, it may either be secreted or retained in the lysosomes. Although this family of enzymes plays a key role in general intracellular molecule degradation, CTSH is also known to participate in other activities. Such activities include the activation of progranzyme B, the late stage processing of pulmonary surfactant protein B, and the cleavage, in endosomes, of TLR3, allowing for subsequent TLR signaling. Human preproCTSH is 335 amino acids (aa) in length. It contains one 22 aa signal peptide, a 75 aa prosequence (aa 23-97), an intervening "mini fragment" (aa 98-105), a second prosequence (aa 106-115), and a 220 aa C-terminal mature region that could be further cleaved after Asn292 into two peptide fragments. CTSH is self-activating. The 40-42 kDa proprecursor (aa 23-335) is cleaved thrice to initially generate a 30 kDa intermediate form, followed by a 28 kDa mature form that is covalently attached to the aforementioned "mini fragment". Further processing at the C-terminus may create a smaller 24-25 kDa mature segment. CTSH is unusual in that it possess both aminopeptidase and endopeptidase activity. While endopeptidase activity is intrinsic to the mature region, aminopeptidase activity requires the presence of a covalently-linked "mini fragment". There is one splice variant that shows a deletion of aa 11-22. Although this occurs within the signal sequence, the molecule is secreted and shows high enzymatic activity. Over aa 23-335, human CTSH shares 84% aa sequence identity with mouse CTSH.

Entrez Gene IDs
1512 (Human); 13036 (Mouse)
Alternate Names
ACC-4; ACC-5; aleurain; cathepsin B3; cathepsin BA; Cathepsin H; CPSB; CTSH; DKFZp686B24257; EC 3.4.22; EC 3.4.22.16; MGC1519; minichain; N-benzoylarginine-beta-naphthylamide hydrolase

Product Datasheets

Citation for Human Cathepsin H Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Distinct functions of macrophage-derived and cancer cell-derived cathepsin Z combine to promote tumor malignancy via interactions with the extracellular matrix.
    Authors: Akkari L, Gocheva V, Kester J, Hunter K, Quick M, Sevenich L, Wang H, Peters C, Tang L, Klimstra D, Reinheckel T, Joyce J
    Genes Dev, 2014;28(19):2134-50.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-P

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