1. Recombinant Proteins
  2. Enzymes & Regulators
  3. Hydrolases (EC 3) Cathepsin
  4. Cathepsin V/Cathepsin L2
  5. Cathepsin L2 Protein, Human (HEK293, His)

Cathepsin L2 Protein, Human (HEK293, His)

Cat. No.: HY-P7755
COA Handling Instructions

Cathepsin L2 Protein, Human (HEK293, His) is a functional cysteine proteinase, mainly expressed in the cornea, testis, thymus, and epidermis.

For research use only. We do not sell to patients.

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  • Biological Activity

  • Technical Parameters

  • Properties

  • Documentation

  • References

Description

Cathepsin L2 Protein, Human (HEK293, His) is a functional cysteine proteinase, mainly expressed in the cornea, testis, thymus, and epidermis.

Background

Cathepsin L2 (cathepsin V) is a human cysteine proteinase, and shows a high percentage of identity (78%) with cathepsin L. Expression analysis of cathepsin L2 in human tumors revealed a widespread expression in colorectal and breast carcinomas but not in normal colon or mammary gland or in peritumoral tissues. Cathepsin L2 is also expressed by colorectal and breast cancer cell lines as well as by some tumors of diverse origin, including ovarian and renal carcinomas[1][2].

Biological Activity

Measured by its ability to cleave the fluorogenic peptide substrate Z-LR-AMC and the specific activity is >1000 pmoles/min/μg, as measured under the described conditions.

Species

Human

Source

HEK293

Tag

C-6*His

Accession

O60911 (V18-V334)

Gene ID
Molecular Construction
N-term
Cathepsin L2 (V18-V334)
Accession # O60911
6*His
C-term
Synonyms
rHuCathepsin L2, His; Cathepsin L2; Cathepsin U; Cathepsin V; CTSL2; CATL2; CTSU; CTSV
AA Sequence

VPKFDQNLDTKWYQWKATHRRLYGANEEGWRRAVWEKNMKMIELHNGEYSQGKHGFTMAMNAFGDMTNEEFRQMMGCFRNQKFRKGKVFREPLFLDLPKSVDWRKKGYVTPVKNQKQCGSCWAFSATGALEGQMFRKTGKLVSLSEQNLVDCSRPQGNQGCNGGFMARAFQYVKENGGLDSEESYPYVAVDEICKYRPENSVANDTGFTVVAPGKEKALMKAVATVGPISVAMDAGHSSFQFYKSGIYFEPDCSSKNLDHGVLVVGYGFEGANSNNSKYWLVKNSWGPEWGSNGYVKIAKDKNNHCGIATAASYPNVHHHHHH

Molecular Weight

Approximately 35-39 kDa

Purity
  • Greater than 95% as determined by reducing SDS-PAGE.
Appearance

Lyophilized powder.

Formulation

Lyophilized a 0.2 μm filtered solution of 20 mM MES, 150 mM NaCl, pH 5.5 or 20 mM PB, 150 mM NaCl, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation
References

Cathepsin L2 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.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

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
= ÷

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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Cathepsin L2 Protein, Human (HEK293, His)
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HY-P7755
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