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Human TCN2 Gene cDNA Clone (full-length ORF Clone), expression ready, C-His-tagged

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TCN2cDNA Clone Product Information
Gene_bank_ref_id:NM_000355.2
cDNA Size:1284
cDNA Description:ORF Clone of Homo sapiens transcobalamin II; macrocytic anemia DNA.
Gene Synonym:TC2, D22S676, D22S750
Species:Human
Vector:pCMV3-C-His
Restriction Site:
Tag Sequence:His Tag Sequence: CACCATCACCACCATCATCACCACCATCAC
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-C-His Vector Information
 
Vector Name pCMV3-C-His
Vector Size 6164bp
Vector Type Mammalian Expression Vector
Expression Method Constiutive ,Stable / Transient
Promoter CMV
Antibiotic Resistance Kanamycin
Selection In Mammalian Cells Hygromycin
Protein Tag His
Sequencing Primer Forward:T7(TAATACGACTCACTATAGGG)
Reverse:BGH(TAGAAGGCACAGTCGAGG)

pCMV3-C-His Physical Map

Schematic of pCMV3-C-His Multiple Cloning Sites

His Tag Info

A polyhistidine-tag is an amino acid motif in proteins that consists of at least five histidine (His) residues, often at the N- or C-terminus of the protein.

Polyhistidine-tags are often used for affinity purification of polyhistidine-tagged recombinant proteins expressed in Escherichia coli and other prokaryotic expression systems.

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Background

Transcobalamin II, also known as TCN2 and TC II, is a plasma protein that binds cobalamin (Cbl; vitamin B12) as it is absorbed in the terminal ileum and distributes to tissues. The circulating transcobalamin II-cobalamin complex binds to receptors on the plasma membrane of tissue cells and is then internalized by receptor-mediated endocytosis. Transcobalamin II is a non-glycolated secretory protein of molecular mass 43 kDa. Its plasma membrane receptor (TC II-R) is a heavily glycosylated protein with a monomeric molecular mass of 62 kDa. Human TCN2 gene is composed of nine exons and eight introns spanning approximately 20 kb with multiple potential transcription start sites. A number of genetic abnormalities are characterized either by a failure to express TCN2 or by synthesis of an abnormal protein. The TCN2 deficiency results in cellular cobalamin deficiency, an early onset of megaloblastic anaemia, and neurological abnormalities.

References
  • Rothenberg, S. P. et al., 1995, Baillieres Clin Haematol. 8 (3):499-514.
  • Bibi, H. et al., 1999, J Inherit Metab Dis. 22 (7):765-772.
  • Seetharam,B. et al.,2000, Vitam Horm. 59 :337-366. 
  • Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"