MFN2 (Mitofusin 2, CMT2A, CMT2A2, CPRP1, HSG, MARF, MFN-2)

Antibodies / Antibodies-GTPase, Rab, Ras, Rho Proteins

-20°C

Supplied as a lyophilized powder in PBS, 5% trehalose. Reconstitute with 500ul sterile PBS.

Recombinant protein corresponding to aa364-599 from human Mitofusin 2, expressed in E. coli (UniProt # O95140).

MFN-2 (Mitofusin 2; also Hypertension-related protein 1, Mitochondrial assembly regulatory factor, HSG protein, and Transmembrane GTPase MFN­2) is an 85-100kD mitochondrial member of the dynamin family of molecules. It is ubiquitously expressed, and found in both the ER and outer mitochondrial membrane. Through trans­interactions with MFN-1 and/or MFN-2, MFN-2 apparently mediates the fusion of individual mitochondria with either the ER or with adjacent mitochondria. Pertubations with this process result in both a general failure of mitochondria to fuse, and in cell-specific effects such as a reduction in oxidative phosphorylation, a decrease in the axonal transport of mitochondria, and a deficit in the expression of respiratory chain components. MFN-2 has two key domains. One is a coiled-coil region that mediates MFN-2:MFN-1/2 binding, and a second is a GTPase domain that likely plays a role in fusion. While active, the MFN-2 GTPase domain is 8­fold lower in activity than that for MFN-1. Human MFN-2 is a 757 amino acid (aa) two transmembrane protein that contains a cytoplasmic N­ and C-terminus. The cytoplasmic N-terminus (aa1-604) contains the GTPase domain (aa99-258) while the cytoplasmic C-terminus possesses a critical coiled-coil motif (aa696-738). MFN­2 is known to form oligomers, either with itself or MFN­1. Two potential splice variants are reported, one that shows a deletion of aa245-273, and a second that contains a 33aa substitution for aa573-757, suggesting this might be a soluble for of MFN-2. Over aa364-599, human and mouse MFN-2 share 93% aa sequence identity. Full-length human MFN-2 and MFN-1 share 61% aa sequence identity.

Applications:
Suitable for use in ELISA and Immunohistochemistry. Other applications not tested.

Recommended Dilutions:
Immunohistochemistry: 5­-15ug/ml using perfusion fixed frozen sections of mouse skeletal muscle
Optimal dilutions to be determined by the researcher.

Storage and Stability:
Lyophilized and reconstituted products are stable for 12 months after receipt at -20°C. Reconstitute with sterile PBS. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.