Revision 13

#83506Store 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, IHC-P, IF-F, IF-IC, FC-FP

REACTIVITY:

H M R

SENSITIVITY:

Endogenous

MW (kDa):

14, 16

Source/Isotype:

Mouse IgG2b

UniProt ID:

#Q9GZQ8

Entrez-Gene Id:

81631

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:100
Immunohistochemistry (Paraffin) 1:50 - 1:200
Immunofluorescence (Frozen) 1:50 - 1:200
Immunofluorescence (Immunocytochemistry) 1:200 - 1:800
Flow Cytometry (Fixed/Permeabilized) 1:100 - 1:400

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.

For a carrier free (BSA and azide free) version of this product see product #20371.

Specificity / Sensitivity

LC3B (E5Q2K) Mouse mAb recognizes endogenous levels of total LC3B protein. This antibody detects both type I and type II forms of LC3B. Cross reactivity was not detected with other family members.

Species Reactivity:

Human, Mouse, Rat

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human LC3B protein.

Background

Autophagy is a catabolic process for the autophagosomic-lysosomal degradation of bulk cytoplasmic contents (1,2). Autophagy is generally activated by conditions of nutrient deprivation, but it has also been associated with a number of physiological processes including development, differentiation, neurodegenerative diseases, infection, and cancer (3). Autophagy marker Light Chain 3 (LC3) was originally identified as a subunit of microtubule-associated proteins 1A and 1B (termed MAP1LC3) (4) and subsequently found to contain similarity to the yeast protein Apg8/Aut7/Cvt5 critical for autophagy (5). Three human LC3 isoforms (LC3A, LC3B, and LC3C) undergo posttranslational modifications during autophagy (6-9). Cleavage of LC3 at the carboxy terminus immediately following synthesis yields the cytosolic LC3-I form. During autophagy, LC3-I is converted to LC3-II through lipidation by a ubiquitin-like system involving Atg7 and Atg3 that allows for LC3 to become associated with autophagic vesicles (6-10). The presence of LC3 in autophagosomes and the conversion of LC3 to the lower migrating form, LC3-II, have been used as indicators of autophagy (11).

  1. Reggiori, F. and Klionsky, D.J. (2002) Eukaryot. Cell 1, 11-21.
  2. Codogno, P. and Meijer, A.J. (2005) Cell Death Differ. 12 Suppl 2, 1509-18.
  3. Levine, B. and Yuan, J. (2005) J. Clin. Invest. 115, 2679-88.
  4. Mann, S.S. and Hammarback, J.A. (1994) J. Biol. Chem. 269, 11492-97.
  5. Lang, T. et al. (1998) EMBO J. 17, 3597-607.
  6. Kabeya, Y. et al. (2000) EMBO J. 19, 5720-28.
  7. He, H. et al. (2003) J. Biol. Chem. 278, 29278-87.
  8. Tanida, I. et al. (2004) J. Biol. Chem. 279, 47704-10.
  9. Wu, J. et al. (2006) Biochem. Biophys. Res. Commun. 339, 437-42.
  10. Ichimura, Y. et al. (2000) Nature 408, 488-92.
  11. Kabeya, Y. et al. (2004) J. Cell Sci. 117, 2805-12.

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 IHC-P: Immunohistochemistry (Paraffin) IF-F: Immunofluorescence (Frozen) IF-IC: Immunofluorescence (Immunocytochemistry) FC-FP: Flow Cytometry (Fixed/Permeabilized)

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.

使用に関する制限

法的な権限を与えられたCSTの担当者が署名した書面によって別途明示的に合意された場合を除き、 CST、その関連会社または代理店が提供する製品には以下の条件が適用されます。お客様が定める条件でここに定められた条件に含まれるものを超えるもの、 または、ここに定められた条件と異なるものは、法的な権限を与えられたCSTの担当者が別途書面にて受諾した場合を除き、拒絶され、 いかなる効力も効果も有しません。

研究専用 (For Research Use Only) またはこれに類似する表示がされた製品は、 いかなる目的についても FDA または外国もしくは国内のその他の規制機関により承認、認可または許可を受けていません。 お客様は製品を診断もしくは治療目的で使用してはならず、また、製品に表示された内容に違反する方法で使用してはなりません。 CST が販売または使用許諾する製品は、エンドユーザーであるお客様に対し、使途を研究および開発のみに限定して提供されるものです。 診断、予防もしくは治療目的で製品を使用することまたは製品を再販売 (単独であるか他の製品等の一部であるかを問いません) もしくはその他の商業的利用の目的で購入することについては、CST から別途許諾を得る必要があります。 お客様は以下の事項を遵守しなければなりません。(a) CST の製品 (単独であるか他の資材と一緒であるかを問いません) を販売、使用許諾、貸与、寄付もしくはその他の態様で第三者に譲渡したり使用させたりしてはなりません。また、商用の製品を製造するために CST の製品を使用してはなりません。(b) 複製、改変、リバースエンジニアリング、逆コンパイル、 分解または他の方法により製品の構造または技術を解明しようとしてはなりません。また、 CST の製品またはサービスと競合する製品またはサービスを開発する目的で CST の製品を使用してはなりません。(c) CST の製品の商標、商号、ロゴ、特許または著作権に関する通知または表示を除去したり改変したりしてはなりません。(d) CST の製品をCST 製品販売条件(CST’s Product Terms of Sale) および該当する書面のみに従って使用しなければなりません。(e) CST の製品に関連してお客様が使用する第三者の製品またはサービスに関する使用許諾条件、 サービス提供条件またはこれに類する合意事項を遵守しなければなりません。

Revision 13
#83506

LC3B (E5Q2K) Mouse mAb

Western Blotting Image 1: LC3B (E5Q2K) Mouse mAb Expand Image
Western blot analysis of extracts from HCT 116 and HCT 116 LC3B knockout cells, untreated (-) or treated with Chloroquine #14774 (50 μM, 18 hr) using LC3B (E5Q2K) Mouse mAb #83506 (upper) or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). The absence of signal in the HCT 116 knockout cells confirms the specificity of the antibody for LC3B.
Western Blotting Image 2: LC3B (E5Q2K) Mouse mAb Expand Image
Western blot analysis of extracts from HeLa, C2C12, and KNRK cells, untreated (-) or treated with Chloroquine (50 μM, overnight; +) #14774 using LC3B (E5Q2K) Mouse mAb (upper) or β-Actin (D6A8) Rabbit mAb #8457 (lower).
Western Blotting Image 3: LC3B (E5Q2K) Mouse mAb Expand Image
Western blot analysis of extracts from HeLa cells or HeLa cells with a knockout of LC3B (HeLa/LC3B KO) using LC3B (E5Q2K) Mouse mAb (upper) or β-Actin (D6A8) Rabbit mAb #8457 (lower).
Western Blotting Image 4: LC3B (E5Q2K) Mouse mAb Expand Image
Western blot analysis of extracts from A549 cells, untreated (-) or starved with Earle's Balanced Salt Solution (EBSS) (indicated times) using LC3B (E5Q2K) Mouse mAb (upper) or β-Actin (D6A8) Rabbit mAb (lower).
Western Blotting Image 5: LC3B (E5Q2K) Mouse mAb Expand Image
Western blot analysis of extracts from MCF7 and Raji cells, untreated (-) or treated with Torin 1 (250 nM, 5 hr; +) #14379, using LC3B (E5Q2K) Mouse mAb (upper) or β-Actin (D6A8) Rabbit mAb #8457 (lower).
Immunoprecipitation Image 1: LC3B (E5Q2K) Mouse mAb Expand Image
Immunoprecipitation of LC3B from HeLa cells treated with Chloroquine (50 μM, overnight) # 14774. Lane 1 is 10% input, lane 2 is Mouse (G3A1) mAb IgG1 Isotype Control, and lane 3 is LC3B (E5Q2K) Mouse mAb. Western blot was performed using LC3B (E5Q2K) Mouse mAb. Anti-mouse IgG, HRP-linked Antibody #7076 was used as a secondary antibody.
Immunohistochemistry Image 1: LC3B (E5Q2K) Mouse mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human colon carcinoma using LC3B (E5Q2K) Mouse mAb.
Immunohistochemistry Image 2: LC3B (E5Q2K) Mouse mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human esophageal carcinoma using LC3B (E5Q2K) Mouse mAb.
Immunohistochemistry Image 3: LC3B (E5Q2K) Mouse mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human lung carcinoma using LC3B (E5Q2K) Mouse mAb.
Immunohistochemistry Image 4: LC3B (E5Q2K) Mouse mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human non-Hodgkin's lymphoma using LC3B (E5Q2K) Mouse mAb.
Immunohistochemistry Image 5: LC3B (E5Q2K) Mouse mAb Expand Image
Immunohistochemical analysis of paraffin-embedded HCT116 cell pellets, untreated (left-top) or treated with Chloroquine #14774 (right-top), and HCT116 LC3B knockout cell pellets, untreated (left-bottom) or treated with Chloroquine #14774 (right-bottom), using LC3B (E5Q2K) Mouse mAb.
Immunohistochemistry Image 6: LC3B (E5Q2K) Mouse mAb Expand Image
Immunohistochemical analysis of paraffin-embedded normal human brain using LC3B (E5Q2K) Mouse mAb.
Immunohistochemistry Image 7: LC3B (E5Q2K) Mouse mAb Expand Image
Immunohistochemical analysis of paraffin-embedded KARPAS 299 cell pellet (left, high-expressing) or VCaP cell pellet (right, low-expressing) using LC3B (E5Q2K) Mouse mAb.
Immunohistochemistry Image 8: LC3B (E5Q2K) Mouse mAb Expand Image
Immunohistochemical analysis of paraffin-embedded HeLa cell pellets, untreated (left) or treated with Chloroquine #14774 (right), using LC3B (E5Q2K) Mouse mAb.
Immunohistochemistry Image 9: LC3B (E5Q2K) Mouse mAb Expand Image
Immunohistochemical analysis of paraffin-embedded normal human spleen using LC3B (E5Q2K) Mouse mAb.
Immunofluorescence Image 1: LC3B (E5Q2K) Mouse mAb Expand Image
Confocal immunofluorescent analysis of fixed frozen mouse cerebellum, labeled with LC3B (E5Q2K) Mouse mAb #83506 (left, green) and co-labeled with GFAP (E4L7M) XP® Rabbit mAb #80788 (right, red) and DAPI #4083 (right, blue).
Immunofluorescence Image 2: LC3B (E5Q2K) Mouse mAb Expand Image
Confocal immunofluorescent analysis of fixed frozen mouse pons, labeled with LC3B (E5Q2K) Mouse mAb #83506 (left, green) and co-labeled with GFAP (E4L7M) XP® Rabbit mAb #80788 (right, red) and DAPI #4083 (right, blue).
Immunofluorescence Image 1: LC3B (E5Q2K) Mouse mAb Expand Image
Confocal immunofluorescent analysis of HCT 116 cells either untreated (left) or treated with Chloroquine #14774 (50 µM, overnight) (center) or LC3B HCT 116 knockout cells treated with Chloroquine #14774 (50 µM, overnight) (right) using LC3B (E5Q2K) Mouse mAb (green). Actin filaments were labeled with β-Actin (13E5) Rabbit mAb #4970 (red) and nuclei were labeled with DAPI #4083 (blue).
Flow Cytometry Image 1: LC3B (E5Q2K) Mouse mAb Expand Image
Flow cytometric analysis of HCT-116 cells, untreated (blue) or treated with Chloroquine #14774 (50 μM, 18 hr; green) using LC3B (E5Q2K) Mouse mAb Antibody (solid lines) or concentration-matched Mouse (E7Q5L) mAb IgG2b Isotype Control #53484 (dashed lines). Anti-mouse IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4408 was used as a secondary antibody.
Flow Cytometry Image 2: LC3B (E5Q2K) Mouse mAb Expand Image
Flow cytometric analysis of HCT-116 cells, wild-type (green, high expression) or LC3B knockdown (blue, negative expression), using LC3B (E5Q2K) Mouse mAb or a concentration-matched Mouse (E7Q5L) mAb IgG2b Isotype Control #53484 (dashed lines). Anti-mouse IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4408 was used as a secondary antibody.