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Rat PTMA Gene cDNA Clone (full-length ORF Clone), expression ready, N-Myc-tagged

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PTMAcDNA Clone Product Information
Gene_bank_ref_id:NM_021740.1
cDNA Size:339
cDNA Description:ORF Clone of Rattus norvegicus prothymosin alpha DNA.
Gene Synonym:Ptma
Species:Rat
Vector:pCMV3-N-Myc
Restriction Site:
Tag Sequence:Myc Tag Sequence: GAGCAGAAACTCATCTCAGAAGAGGATCTG
Sequence Description:
Shipping_carrier:Each tube contains approximately 10 μg of lyophilized plasmid.
Storage:The lyophilized plasmid can be stored at ambient temperature for three months.
pCMV3-N-Myc Vector Information
 
Vector Name pCMV3-N-Myc
Vector Size 6104bp
Vector Type Mammalian Expression Vector
Expression Method Constiutive ,Stable / Transient
Promoter CMV
Antibiotic Resistance Kanamycin
Selection In Mammalian Cells Hygromycin
Protein Tag Myc
Sequencing Primer Forward:T7(TAATACGACTCACTATAGGG)
Reverse:BGH(TAGAAGGCACAGTCGAGG)

pCMV3-N-Myc Physical Map

Schematic of pCMV3-N-Myc Multiple Cloning Sites

Myc Tag Info

A myc tag is a polypeptide protein tag derived from the c-myc gene product that can be added to a protein using recombinant DNA technology. It can be used for affinity chromatography, then used to separate recombinant, overexpressed protein from wild type protein expressed by the host organism. It can also be used in the isolation of protein complexes with multiple subunits.

A myc tag can be used in many different assays that require recognition by an antibody. If there is no antibody against the studied protein, adding a myc-tag allows one to follow the protein with an antibody against the Myc epitope. Examples are cellular localization studies by immunofluorescence or detection by Western blotting.

The peptide sequence of the myc-tag is: N-EQKLISEEDL-C (1202 Da). It can be fused to the C-terminus and the N-terminus of a protein. It is advisable not to fuse the tag directly behind the signal peptide of a secretory protein, since it can interfere with translocation into the secretory pathway.

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Background

PTMA (prothymosin, alpha, N-GST chimera) is a small, 12.4 kDa protein. It is a 109-111 amino acid long polypeptide as the precursor of thymosin a1. Thymosins are named becaues they were originally isolated from the thymus. But now in many other tissues, thymosins also can be detected. Thymosins have diverse biological activities, and two in particular, thymosins a1 and _4, have potentially important uses in medicine, some of which have already progressed from the laboratory to the clinic. In general, PTMA is associated with cellular proliferation and carcinogenesis (Eschenfeldt et al., 1986), cellular and viral transcription (Cotter et al., 2000), protection against apoptosis and chromatin remodelling (Karetsou et al., 1998). PTMA may have a dual role both intracellulary and extracellulary. In relation to diseases, thymosins have been categorized as biological response modifiers. Thymosin a1 is derived from PTMA. For animals that lack thymus glands, thymosin a1 is responsible for the activity of that preparation in restoring immune function.

References
  • Manrow RE, et al. (1992) The human prothymosin alpha gene family contains several processed pseudogenes lacking deleterious lesions. Genomics. 13(2):319-31.
  • Wara DW, et al. (1975) Thymosin activity in patients with cellular immunodeficiency. N Engl J Med. 292(2):70-4.
  • Garaci E, et al. (2007) Thymosin alpha 1: from bench to bedside. Ann N Y Acad Sci. 1112:225-34.
  • Goldstein AL, et al. (2009) From lab to bedside: emerging clinical applications of thymosin alpha 1. Expert Opin Biol Ther. 9(5):593-608.
  • Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"