PRODUCT CODE: EM1901-17

Cathepsin D Monoclonal Antibody (EM1901-17)

  • IVD–IHC

Applications

  • WB

  • IHC-P

REACTIVITY

  • Human

Western blot analysis of Cathepsin D on different lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (EM1901-17, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Mouse IgG - HRP Secondary Antibody (HA1006) at 1:5,000 dilution was used for 1 hour at room temperature.<br />
 Positive control: <br />
 Lane 1: SK-Br-3 cell lysate<br />
 Lane 2: MCF-7 cell lysate
  • Western blot analysis of Cathepsin D on different lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (EM1901-17, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Mouse IgG - HRP Secondary Antibody (HA1006) at 1:5,000 dilution was used for 1 hour at room temperature.<br />
 Positive control: <br />
 Lane 1: SK-Br-3 cell lysate<br />
 Lane 2: MCF-7 cell lysate
  • Immunohistochemical analysis of paraffin-embedded human liver tissue using anti-Cathepsin D antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (EM1901-17, 1/50) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
  • Immunohistochemical analysis of paraffin-embedded human liver carcinoma tissue using anti-Cathepsin D antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (EM1901-17, 1/50) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Western blot analysis of Cathepsin D on different lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (EM1901-17, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Mouse IgG - HRP Secondary Antibody (HA1006) at 1:5,000 dilution was used for 1 hour at room temperature.
Positive control:
Lane 1: SK-Br-3 cell lysate
Lane 2: MCF-7 cell lysate

Applications

  • WB

  • IHC-P

REACTIVITY

  • Human

SPECIFICATIONS

Product Type

Mouse monoclonal primary

Product Name

Cathepsin D Monoclonal Antibody (EM1901-17)

Immunogen

Recombinant protein within human cathepsin d aa 10-412.

Host

Mouse

Positive Control

SK-Br-3 cell, MCF-7 cell, human liver tissue, human liver carcinoma tissue.

Conjugation

Unconjugated

Clonality

Monoclonal

Clone Number

13F4

PROPERTIES

Form

Liquid

Storage Condition

Store at +4C after thawing. Aliquot store at -20C. Avoid repeated freeze / thaw cycles.

Storage Buffer

1*PBS (pH7.4), 0.2% BSA, 50% Glycerol. Preservative: 0.05% Sodium Azide.

Concentration

2 ug/ul

PURIFICATION

Protein G purified.

MOLECULAR WEIGHT

27 kDa

Isotype

IgG2b

APPLICATION DILUTION

  • WB

  • 1:500-1:2,000

  • IHC-P

  • 1:50-1:200

TARGET

UNIPROT #

PROTEIN NAME

Cathepsin D

SYNONYMS

CatD antibody; CATD_HUMAN antibody; Cathepsin D antibody; Cathepsin D heavy chain antibody; CD antibody; Ceroid lipofuscinosis neuronal 10 antibody; CLN10 antibody; CPSD antibody; ctsd antibody; Epididymis secretory sperm binding protein Li 130P antibody; HEL S 130P antibody; Lysosomal aspartyl peptidase antibody; Lysosomal aspartyl protease antibody; MGC2311 antibody

SEQUENCE SIMILARITIES

Belongs to the peptidase A1 family.

TISSUE SPECIFICITY

Expressed in the aorta extracellular space (at protein level). Expressed in liver (at protein level).

POST-TRANSLATIONAL MODIFICATION

N- and O-glycosylated.; Undergoes proteolytic cleavage and activation by ADAM30.; As well as the major heavy chain which starts at Leu-169, 2 minor forms starting at Gly-170 and Gly-171 have been identified. An additional form starting at Ala-168 has also been identified.

SUBCELLULAR LOCATION

Lysosome, extracellular space, melanosome.

FUNCTION

Cathepsin D is a protein that in humans is encoded by the CTSD gene. The main function of cathepsin D is to degrade proteins and activate precursors of bioactive proteins in pre-lysosomal compartments. This proteinase, which is a member of the peptidase A1 family, has a specificity similar to but narrower than that of pepsin A. Transcription of the CTSD gene is initiated from several sites, including one that is a start site for an estrogen-regulated transcript. Mutations in this gene are involved in the pathogenesis of several diseases, including breast cancer and possibly Alzheimer disease. Homozygous deletion of the CTSD gene leads to early lethality in the postnatal phase. Over-expression of cathepsin D stimulates tumorigenicity and metastasis as well as initiation of tumor apoptosis. This protease has been regarded an independent marker of poor prognosis in breast cancer being correlated with the incidence of clinical metastasis. Knock-out of CTSD gene would cause intestinal necrosis and hemorrhage and increase apoptosis in thymus, indicating that cathepsin D is required in certain epithelial cells for tissue remodeling and renewal.