FAM19A4 Protein, Human, Recombinant (hFc Tag)

Product Specifications

Overview

A DNA sequence encoding the human FAM19A4 (Q96LR4) (Ser36-Arg140) was expressed with the Fc region of human IgG1 at the N-terminus.

Synonyms

TAFA-4 Protein, Human; TAFA4 Protein, Human

Gene Name

Family with sequence similarity 19 (chemokine (C-C motif) -like), member A4

UniProt

Q96LR4

Expression System

HEK293 Cells

Tag

N-hFc

Endotoxin

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

Purity

> 80 % as determined by SDS-PAGE.

Activity

At Leading Biology, the biological activity of a recombinant protein is routinely measured using a bioassay, e.g. chemotaxis or cell proliferation assay, enzyme assay, or a functional ELISA. When a recombinant protein is an enzyme, specific activity is derived from an enzymatic assay. Each enzyme is tested for potency by cleavage of a substrate. We are in the process of updating the biological activity data. If you have any questions regarding this update, please feel free to contact our technical support team.

Form

Lyophilized

Buffer

Lyophilized from sterile PBS, pH 7.4. 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

Cytokine Proteins, Growth Factor proteins, Biological Target proteins

Molecular Weight

The recombinant human FAM19A4 /Fc comprises 365 amino acids and has a predicted molecular mass of 40.1 kDa. The apparent molecular mass of the protein is approximately 43 kDa 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.