Measured by its ability to induce BMP responsive SEAP reporter activity in HEK293 human embryonic kidney cells. The ED50 for this effect is 3-21 ng/mL.
2 μg/lane of Animal-FreeTM Recombinant Human BMP-4 Protein (AFL314E) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 8-9 ...read more
Equivalent bioactivity of RUO (314-BPE) , Animal-Free (AFL314E), and GMP (314E-GMP) grades of Recombinant Human BMP-4 as measured in cell proliferation assay (orange, green, red, respectively).
Recombinant Human BMP-4 Animal-Free Protein Summary
Additional Information
Intended for preclinical researchers who may transition to GMP BMP-4 for their clinical work
Details of Functionality
Measured by its ability to induce BMP responsive SEAP reporter activity in HEK293 human embryonic kidney cells. The ED50
for this effect is 3.00-21.0 ng/mL.
Source
E. coli-derived human BMP-4 protein Lys303-Arg408 Produced using non-animal reagents in an animal-free laboratory.
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity2
Theoretical MW
12 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
8-9 kDa, under reducing conditions
Publications
Read Publication using AFL314E in the following applications:
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
3 months, -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA.
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 100-200 μg/mL in 4 mM HCl.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human BMP-4 Animal-Free Protein
BMP2B
BMP-2B
BMP2B1
BMP2BMCOPS6
BMP4
BMP-4
Bone morphogenetic protein 2B
bone morphogenetic protein 4
DVR4
MCOPS6
OFC11
ZYME
Background
Bone
morphogenetic protein 4 (BMP-4) is a TGF-beta superfamily ligand that is widely
expressed from early embryogenesis through adulthood. It plays an important
role in mesenchyme formation, epidermal determination, suppression of neural
induction, the development of multiple organs, and tissue repair (1-5). It is
an integral part of many stem cell differentiation pathways, including lung
tissue, (6), adipogenesis (7) and osteogenesis (8, 9). The human BMP-4 precursor
contains a 273 amino acid (aa) propeptide and a 116 amino acid (aa) mature protein (10). Processing
of the propeptide by furin or proprotein convertase 6 enables the formation of
the mature disulfide-linked homodimeric BMP-4 and facilitates its secretion.
Similar intracellular processes may lead to the formation and recreation of
BMP4/BMP7 disulfide-linked heterodimer (11-13). Mature human and mouse BMP-4
share 98% aa sequence identity. Human BMP-4 shares 85% aa sequence identity
with human BMP-2 and less than 50% with other human BMPs. In Xenopus, BMP-4
dimers provide ventralizing signals for existing mesoderm (14). BMP-4 signals
through tetrameric complexes composed of type I (primarily Activin RIA or
BMPR-IA) and type II (primarily Activin RIIA or BMPR-II) receptors (15, 16). The
bioavailability of BMP-4 is regulated by its interaction with multiple proteins
and glycosaminoglycans (17-19).
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