Revision 1

#79737Store at -20C

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IP, IF-F, IF-IC, ChIP

REACTIVITY:

H M

SENSITIVITY:

Endogenous

MW (kDa):

50

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q8NHW3

Entrez-Gene Id:

389692

Product Information

Product Usage Information

For optimal ChIP results, use 5 μl of antibody and 10 μg of chromatin (approximately 4 x 106 cells) per IP. This antibody has been validated using SimpleChIP® Enzymatic Chromatin IP Kits.

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:200
Immunofluorescence (Frozen) 1:1000
Immunofluorescence (Immunocytochemistry) 1:1000
Chromatin IP 1:100

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

MAFA (D6Z2N) recognizes endogenous levels of total MAFA protein. Based on sequence similarity, this antibody is not predicted to cross-react with MAFB or c-MAF.

Species Reactivity:

Human, Mouse

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala345 of human MAFA protein.

Background

MAFA belongs to the musculoaponeurotic fibrosarcoma (MAF) family of basic leucine-zipper transcription factors (1). In the mouse embryo, MAFA expression is first detected at E13.5, restricted to Nkx6.1-positive insulin-producing islet cells (2). Expression of the MAFA gene is sensitive to physiological glucose levels, and genomic targets regulated by MAFA include β-cell transcription factors (e.g., PDX1) and the insulin gene (2, 3). Ectopic expression of MAFA was shown to induce insulin production by pancreatic α-cells (2), while conditional overexpression of MAFA in vivo promoted transdifferentiation of α-cells into insulin-producing β-cells (4). Targeted deletion of the MAFA gene in mice likewise led to a loss of β-cell identity and function (5). Collectively, these data suggest that MAFA is critical for the development, maintenance, and physiological function of insulin-producing pancreatic β-cells, highlighting its potential utility as a target for translational and clinical research studies in diabetes (6).

  1. Hang, Y. and Stein, R. (2011) Trends Endocrinol Metab 22, 364-73.
  2. Matsuoka, T.A. et al. (2004) Proc Natl Acad Sci U S A 101, 2930-3.
  3. Vanhoose, A.M. et al. (2008) J Biol Chem 283, 22612-9.
  4. Matsuoka, T.A. et al. (2017) Diabetes 66, 1293-1300.
  5. Nishimura, W. et al. (2015) Diabetologia 58, 566-74.
  6. Lu, J. et al. (2017) Mol Med Rep 15, 4041-4048.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IP: Immunoprecipitation IF-F: Immunofluorescence (Frozen) IF-IC: Immunofluorescence (Immunocytochemistry) ChIP: Chromatin IP

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Alexa Fluor is a registered trademark of Life Technologies Corporation.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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