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- Table of Contents
Designing a Western blot for TBC1D4? The guide has the expected band size, antibodies backed by real blot images, the controls to run alongside, and protocols taken from published papers.
Open the TBC1D4 Western Blot GuideFacts about TBC1 domain family member 4.
May act as a GTPase-activating protein for RAB2A, RAB8A, RAB10 and RAB14.
Isoform 2 promotes insulin-induced sugar transporter SLC2A4/GLUT4 translocation at the plasma membrane, thus increasing glucose uptake..
| Human | |
|---|---|
| Gene Name: | TBC1D4 |
| Uniprot: | O60343 |
| Entrez: | 9882 |

| Belongs to: |
|---|
| No superfamily |

Akt substrate of 160 kDa; AS160Acrg embryonic lethality minimal region ortholog; DKFZp779C0666; KIAA0603TBC (Tre-2, BUB2, CDC16) domain-containing protein; TBC1 domain family member 4; TBC1 domain family, member 4
Mass (kDA):
146.563 kDA

| Human | |
|---|---|
| Location: | 13q22.2 |
| Sequence: | 13; NC_000013.11 (75283503..75483144, complement) |
Widely expressed. Isoform 2 is the highest overexpressed in most tissues. Isoform 1 is highly expressed in skeletal muscle and heart, but was not detectable in the liver nor in adipose tissue. Isoform 2 is strongly expressed in adrenal and thyroid gland, and also in lung, kidney, colon, brain and adipose tissue. Isoform 2 is moderately expressed in skeletal muscle. Expressed in pancreatic Langerhans islets, including beta cells (at protein level). Expression is decreased by twofold in pancreatic islets in type 2 diabetes patients compared to control subjects. Up-regulated in T-cells from patients with atopic dermatitis.
Cytoplasm. Isoform 2 shows a cytoplasmic perinuclear localization in a myoblastic cell line in resting and insulin-stimulated cells.





PMID: 18771725 by Baus D., et al. Identification of a novel AS160 splice variant that regulates GLUT4 translocation and glucose-uptake in rat muscle cells.
PMID: 19077034 by Ishibashi K., et al. Identification and characterization of a novel Tre-2/Bub2/Cdc16 (TBC) protein that possesses Rab3A-GAP activity.