Human Gastric intrinsic factor / GIF Gene ORF cDNA clone expression plasmid,N terminal OFP tag

Gene

Species

Human

NCBI Ref Seq

BC037958

RefSeq ORF Size

1254bp

Gene Synonym

IF, INF, IFMH, TCN3, GIF

Sequence Description

Identical with the Gene Bank Ref. ID sequence.

Description

Full length Clone DNA of Human gastric intrinsic factor (vitamin B synthesis) Gene ORF cDNA clone expression plasmid,N terminal OFP tag

Plasmid

Promoter

Enhanced CMV mammalian cell promoter

Vector

pCMV3-N-OFPSpark

Restriction Site

Protein Tag

OFPSpark

Tag Sequence

GATAGCACTGAG……CACCTGTTCCAG

Sequencing Primers

Forward:T7(TAATACGACTCACTATAGGG) Reverse:BGH(TAGAAGGCACAGTCGAGG)

Quality Control

The plasmid is confirmed by full-length sequencing.

OFPSpark Tag Information

OFPSpark is a red (orange) fluorescent protein (excitation/emission maxima are 549 and 566 nm, respectively) derived from DsRed. Possessing high photostability and pH stability, OFPSpark is more than twice brighter than mOrange2. Fast OFPSpark maturation makes it clearly detectable in mammalian cells as early as within 8 hrs after transfection. OFPSpark can be expressed and detected in a wide range of organisms. Mammalian cells transiently transfected with OFPSpark expression vectors produce bright fluorescence in 8 hrs after transfection. No cytotoxic effects or visible protein aggregation are observed. For its monomer structure, OFPSpark performs well in some fusions and protein labeling applications.

Screening

Antibiotic in E.coli

Kanamycin

Antibiotic in Mammalian cell

Hygromycin

Application

Stable or Transient mammalian expression

Storage & Shipping

Shipping

Each tube contains lyophilized plasmid.

Storage

The lyophilized plasmid can be stored at ambient temperature for three months.

Other Life Science vendor

Natural small molecules manufacturer | Biological Research Reagents Manufacturer

Background Information

Gastric intrinsic factor, also known as GIF, belongs to the of the cobalamin transport protein family. It is a glycoprotein produced by the parietal cells of the stomach. Gastric intrinsic factor plays a key role in the absorption of vitamin B12 on in the small intestine. Vitamin B12 bounds to haptocorrin after entry into the stomach. The resulting complex enters the duodenum, where pancreatic enzymes digest haptocorrin. In the less acidic environment of the small intestine, B12 can then bind to gastric intrinsic factor. This new complex travels to the ileum, where special epithelial cells endocytose them. Inside the cell, B12 dissociates once again and binds to another protein, transcobalamin II. The new complex can exit the epithelial cells to enter the liver.

References

Gerdin AK. (2010) The Sanger Mouse Genetics Programme: high throughput characterisation of knockout mice. Acta Opthalmologica. 88:925-7.

AU - Berlin H, et al. (1968) ORAL TREATMENT OF PERNICIOUS ANEMIA WITH HIGH DOSES OF VITAMIN B12 WITHOUT INTRINSIC FACTOR. Acta Medica Scandinavica. 184(1-6):247-58.

Hewitt JE, et al. (1991) Human gastric intrinsic factor: characterization of cDNA and genomic clones and localization to human chromosome 11. Genomics. 10(2):432-40.

Catalog Number:HGD036-NO