Ubiquilin1, ID (Ubiquilin 1, Protein Linking IAP with Cytoskeleton-1, PLIC-1, hPLIC-1, UBQLN1, DA41, PLIC1) (FITC)

Ubiquilin 1 (UBQLN1), also known as DA41, was isolated from an adult rat lung cDNA library, and encodes a cellular protein that associates with DAN.1 DAN expression is reduced in rat fibroblast 3Y1 cells transformed with mouse sarcoma virus and in rodent fibroblasts transformed with a variety of oncogenes. The DAN-DA41 interaction is mediated through the N-terminal domain and a cysteine-knot region of DAN. Human DA41 encodes a 589aa protein with 86% aa sequence identity with rat protein.2 DA41 expression is regulated in a cell cycle-dependent manner. PLIC1 and PLIC2 (UBQLN2) are homologs of the mouse Plics (proteins linking integrin-associated protein (IAP) and cytoskeleton) and the yeast Dsk2 protein. PLIC1, also called UBQLN1, shares 72% aa identity with PLIC2,3 Two motifs are conserved in the mammalian PLICs and yeast Dsk2, an N-terminal ubiquitin-like (UBL) domain and a C-terminal ubiquitin-associated (UBA) domain. Unlike ubiquitin, the UBL domain of the PLICs does not have a diglycine motif in its C terminus. The UBA domain is present in multiple enzyme classes of the ubiquitination machinery. Human PLICs associate with both proteasomes and ubiquitin ligases in large complexes. Overexpression of PLICs impairs the in vivo degradation of 2 unrelated ubiquitin-dependent proteasome substrates, p53 and I-kappa-B-alpha (NFKBIA), but not a ubiquitin-independent substrate. PLICs may link the ubiquitination machinery to the proteasome to affect in vivo protein degradation. The DA41 gene maps to chromosome 9q21.2-q21.3, a position overlapping a candidate tumor suppressor locus for bladder cancer.2\n\nApplications: \nSuitable for use in ELISA, Western Blot, and Immunohistochemistry. Other applications not tested.\n\nRecommended Dilution:\nELISA: 1:1,000\nWestern Blot: 1:100-1:500\nImmunohistochemistry: 1:50-1:100\nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Do not freeze FITC conjugates. Light sensitive. Aliquots are stable for at least 6 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

U1000-17C-FITC

Size

200ul

Applications

ELISA, IHC, WB

Hosts

Rabbit

Reactivities

Hum, Mouse

Form

Supplied as a liquid in PBS, pH 7.2. Contains ~0.09% sodium azide. Conjugated to FITC.

P Type

Pab

Purity

Purified by Protein G affinity chromatography.

Isotype

IgG

References

1. Massey, L.K., et al., J. Alzheimers Dis. 6(1):79-92 (2004). 2. Gao, L., et al., J. Virol. 77(7):4149-4159 (2003). 3. Mah, A.L., et al., J. Cell Biol. 151(4):847-862 (2000). 4. Kleijnen, M.F., et al., Mol. Cell 6(2):409-419 (2000). 5. Hanaoka, E., et al., J. Hum. Genet. 45(3):188-191 (2000).

Additional Info

Recognizes human Ubiquilin1. Species Crossreactivity: mouse.