MAP1D Protein, Human, Recombinant (His Tag)

• Background:

  Methionine aminopeptidase 1D, also known as MAP1D, is a member of the peptidase M24A family. N-terminal methionine removal is an important cellular process required for proper biological activity, subcellular localization, and eventual degradation of many proteins. The enzymes that catalyze this reaction are called Methionine aminopeptidases (MAPs) . MAP1D is overexpressed in colon cancer cell lines and colon tumors as compared to normal tissues (at protein level) . Downregulation of MAP1D expression by shRNA in HCT-116 colon carcinoma cells reduces anchorage-independent growth in soft agar. MAP1D binds two cobalt ions per subunit. The true nature of the physiological cofactor is under debate. MAP1D is also active with zinc, manganese, or divalent ions. MAP1D removes the amino-terminal methionine from nascent proteins. It may also play an important role in colon tumorigenesis.

• Synonyms:

  MAP 1D Protein, Human; MAP1D Protein, Human; MetAP 1D Protein, Human; Metap1l Protein, Human

• Gene Name:

  Methionyl aminopeptidase type 1D (mitochondrial)

• Expression System:

  Baculovirus-Insect Cells

• Tag:

  C-His

• Endotoxin:

  < 1.0 EU per μg of the protein as determined by the LAL method.

• Purity:

  > 92 % as determined by SDS-PAGE.

• Activity:

  Measure by its ability to remove methionine from a fluorogenic peptide substrate H-Met-Gly-Pro-AMC, R&D Systems, Catalog#ES017. The resulting GP-AMC is cleaved by human DPPIV/CD26, R&D Systems, Catalog#1180SE. The specific activity is >30 pmoles/min/μg.

• Form:

  Lyophilized

• Buffer:

  Lyophilized from sterile 50mM Tris, 100mM NaCl, pH 8.0 Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

• Function:

  Enzyme Proteins

• Molecular Weight:

  The secreted recombinant human MAP1D consists of 303 amino acids and predicts a molecular mass of 33.4 kDa. It migrates as an approximately 36 kDa band in SDS-PAGE under reducing conditions.

• Storage Conditions:

  In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.

• Symbol:

  METAP1D

• Species:

  Human

• Protein ID:

  NP_954697.1

• Overview:

  A DNA sequence encoding the human MAP1D (NP_954697.1) (Arg 44-Ala 335) was expressed, with an initial Met at the N-terminus and a polyhistidine tag at the C-terminus.

• AA Sequence:

  Arg44-Ala335

• Protein ID Link:

  https://www.ncbi.nlm.nih.gov/protein/NP_954697.1