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Human S100A13 Protein, Tag Free  pdf  pdf  pdf


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Synonym

S100A13,protein S100-A13

Source

Recombinant Human S100A13 Protein (rh S100A13) Met 1 - Lys 98 (Accession # AAH00632) was produced in E.coli cells at ACROBiosystems.

Molecular Characterization

rh S100A13 contains no "tag", and has a calculated MW of 11.5 kDa. The predicted N-terminus is Met. DTT-reduced Protein migrates as 13 kDa in SDS-PAGE .

Endotoxin

Less than 1.0 EU per μg of the rh S100A13 by the LAL method.

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in 50 mM Tris,150 mM NaCl,pH8.0. Normally Mannitol or Trehalose are added as protectants before lyophilization.

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Reconstitution

See Certificate of Analysis for reconstitution instructions and specific concentrations.

Storage

Avoid repeated freeze-thaw cycles.

No activity loss was observed after storage at:
In lyophilized state for 1 year (4oC); After reconstitution under sterile conditions for 3 months (-70oC).

 

SDS-PAGE


Recombinant Human S100A13 Protein
The purity of rh S100A13 was determined by DTT-reduced (+) SDS-PAGE and staining overnight with Coomassie Blue.
 
 

Background

S100 calcium-binding protein A13 (S100A13) is a member of the S-100 family. S100 protein is a family of low molecular weight protein found in vertebrates characterized by two EF-hand calcium-binding motifs. There are at least 21 different S100 proteins, and the name is derived from the fact that the protein is 100% soluble in ammonium sulfate at neutral pH. Most S100 proteins are disulfide-linked homodimer, and is normally present in cells derived from the neural crest, chondrocytes, macrophages, dendritic cells, etc. S100A13 plays a role in the export of proteins that lack a signal peptide and are secreted by an alternative pathway. S100A13 is required for the copper-dependent stress-induced export of IL1A and FGF1. The calcium-free protein binds to lipid vesicles containing phosphatidylserine, but not to vesicles containing phosphatidylcholine.

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References

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