Revision 1

#13483Store 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, IF-IC

REACTIVITY:

H M R Mk

SENSITIVITY:

Endogenous

MW (kDa):

95-140

Source/Isotype:

Rabbit IgG

UniProt ID:

#O94979

Entrez-Gene Id:

22872

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunofluorescence (Immunocytochemistry) 1:800

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

Sec31A (E1J5M) Rabbit mAb recognizes endogenous levels of total Sec31A protein.

Species Reactivity:

Human, Mouse, Rat, Monkey

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser1080 of human Sec31A protein.

Background

The coat protein complex II (COPII) is composed of five cytosolic proteins and includes the Sec23/24 complex, the Sec13/31 complex, and Sar1. The COPII coat is located at the ER/Golgi interface and is involved in transport of newly synthesized proteins from the ER to the Golgi apparatus (1). COPII formation is initiated through the binding of the activated G protein, Sar1, to the Sec23/24 complex to form a pre-budding complex that directly binds target molecules (1-3). This pre-budding complex further recruits Sec13/31 to form mature COPII coat (4,5). The Sec31 subunit of COPII coat interacts with Sec13 at the ER exit and is required for both vesicle formation and ER-Golgi transport. Two isoforms of human Sec31 have been identified, Sec31A and Sec31B, which share a sequence homology of 47.3% (6-8). Sec31A is ubiquitously expressed in tissues and organs, whereas Sec31B is enriched in brain and testis (7,8). In classical Hodgkin lymphoma, a novel fusion of Jak2 with Sec31A renders Jak2 constitutively active and subject to Jak2 inhibitor effects (9).

  1. Aridor, M. et al. (1998) J Cell Biol 141, 61-70.
  2. Miller, E.A. et al. (2003) Cell 114, 497-509.
  3. Mossessova, E. et al. (2003) Cell 114, 483-95.
  4. Barlowe, C. et al. (1994) Cell 77, 895-907.
  5. Bi, X. et al. (2007) Dev Cell 13, 635-45.
  6. Shugrue, C.A. et al. (1999) J Cell Sci 112 ( Pt 24), 4547-56.
  7. Tang, B.L. et al. (2000) J Biol Chem 275, 13597-604.
  8. Stankewich, M.C. et al. (2006) J Cell Sci 119, 958-69.
  9. Van Roosbroeck, K. et al. (2011) Blood 117, 4056-64.

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 IF-IC: Immunofluorescence (Immunocytochemistry)

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.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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