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  • Product Name
    MMP9 Antibody
  • Catalog No.
  • RRID
  • Source
  • Application
  • Reactivity
    Human, Mouse, Rat
  • Prediction
    Pig(82%), Horse(82%)
  • UniProt
  • Mol.Wt
    (Observed)78kD(active),92-105kD(Prommp9); (Calculated)78kDa
  • Concentration
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Product Information

Alternative Names:Expand▼

82 kDa matrix metalloproteinase-9; 92 kDa gelatinase; 92 kDa type IV collagenase; CLG 4B; CLG4B; Collagenase Type 4 beta; Collagenase type IV 92 KD; EC; Gelatinase 92 KD; Gelatinase B; Gelatinase beta; GelatinaseB; GELB; Macrophage gelatinase; MANDP2; Matrix metallopeptidase 9 (gelatinase B, 92kDa gelatinase, 92kDa type IV collagenase); Matrix Metalloproteinase 9; MMP 9; MMP-9; MMP9; MMP9_HUMAN; Type V collagenase;


IF/ICC 1:200, IHC-p 1:50-1:200, WB 1:500-1:2000, IHC 1:50-1:200, ELISA(peptide) 1:20000-1:40000


Human, Mouse, Rat

Predicted Reactivity:

Pig(82%), Horse(82%)






The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).


MMP9 Antibody detects endogenous levels of total MMP9.


Please cite this product as: Affinity Biosciences Cat# AF5228, RRID:AB_2837714.





Storage Condition and Buffer:

Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.Store at -20 °C.Stable for 12 months from date of receipt.

Immunogen Information


A synthesized peptide derived from human MMP9, corresponding to a region within C-terminal amino acids.


>>Visit The Human Protein Atlas

Gene ID:

Gene Name:


Molecular Weight:

Observed Mol.Wt.: (Observed)78kD(active),92-105kD(Prommp9).
Predicted Mol.Wt.: (Calculated)78kDa.

Subcellular Location:

Secreted, extracellular space, extracellular matrix.

Tissue Specificity:

P14780 MMP9_HUMAN:
Detected in neutrophils (at protein level) (PubMed:7683678). Produced by normal alveolar macrophages and granulocytes.


May play an essential role in local proteolysis of the extracellular matrix and in leukocyte migration. Could play a role in bone osteoclastic resorption. Cleaves KiSS1 at a Gly-


Research Background


May play an essential role in local proteolysis of the extracellular matrix and in leukocyte migration. Could play a role in bone osteoclastic resorption. Cleaves KiSS1 at a Gly-|-Leu bond. Cleaves type IV and type V collagen into large C-terminal three quarter fragments and shorter N-terminal one quarter fragments. Degrades fibronectin but not laminin or Pz-peptide.

Post-translational Modifications:

Processing of the precursor yields different active forms of 64, 67 and 82 kDa. Sequentially processing by MMP3 yields the 82 kDa matrix metalloproteinase-9.

N- and O-glycosylated.

Subcellular Location:

Secreted>Extracellular space>Extracellular matrix.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte

Tissue Specificity:

Detected in neutrophils (at protein level) (PubMed:7683678). Produced by normal alveolar macrophages and granulocytes.

Subunit Structure:

Exists as monomer or homodimer; disulfide-linked (PubMed:1281792, PubMed:7683678). Exists also as heterodimer with LCN2 (PubMed:1281792, PubMed:7683678). Macrophages and transformed cell lines produce only the monomeric form. Interacts with ECM1 (PubMed:16512877).

(Microbial infection) Interacts with Staphylococcus aureus protein SSL5; this interaction inhibits MMP9 activity.


The conserved cysteine present in the cysteine-switch motif binds the catalytic zinc ion, thus inhibiting the enzyme. The dissociation of the cysteine from the zinc ion upon the activation-peptide release activates the enzyme.

Belongs to the peptidase M10A family.

Research Fields

Research Fields:

· Environmental Information Processing > Signal transduction > TNF signaling pathway.(View pathway)
· Human Diseases > Cancers: Specific types > Bladder cancer.(View pathway)
· Human Diseases > Cancers: Overview > Pathways in cancer.(View pathway)
· Human Diseases > Cancers: Overview > Proteoglycans in cancer.
· Human Diseases > Cancers: Overview > MicroRNAs in cancer.
· Human Diseases > Infectious diseases: Viral > Hepatitis B.
· Human Diseases > Cancers: Overview > Transcriptional misregulation in cancer.
· Human Diseases > Drug resistance: Antineoplastic > Endocrine resistance.
· Human Diseases > Cancers: Specific types > Prostate cancer.(View pathway)
· Organismal Systems > Immune system > IL-17 signaling pathway.(View pathway)
· Organismal Systems > Immune system > Leukocyte transendothelial migration.(View pathway)
· Organismal Systems > Endocrine system > Relaxin signaling pathway.
· Organismal Systems > Endocrine system > Estrogen signaling pathway.(View pathway)

Reference Citations:

1). Ai XY et al. Phenytoin silver: a new nanocompound for promoting dermal wound healing via comprehensive pharmacological action. Theranostics 2017 Jan 5;7(2):425-435 (PubMed: 28255340) [IF=8.063]

Application: WB    Species:human;    Sample:Not available

Figure 6. PnAg regulates gp130/Jak/Stat3 signaling pathway (A) and (B) NIH-3T3 and HaCat Cells were treated with PnAg at different concentrations and cell viability was tested using MTT analysis. (C) Wound healing assay reflected the effect of PnAg on cell migration. (D) Binding mode of PnAg in the active pocket of gp130. (E) and (F) MMPs activity and expression levels of Stat3, VEGF, TGFB-1, and TGFB1 detected using zymographic and Western blot assays. (G) Diagram of the proposed function of PnAg in wound inflammation and re-epithelialization controls.

Application: IHC    Species:human;    Sample:Not available

Figure 2. PnAg promotes wound healing in SD rats. (A) Photographs of rat skin full-thickness excision wounds on different post-excision days. (B) Change in wound areas of SD rats after treatment; (C) and (D) Expression levels of collagen I, NF-κB, TGF-ß, MMP-2, and MMP-9 in tissues on day 7 and 17 detected by immunohistochemistry. (E) Histogram of protein expression levels in these tissues. (F) and (G) Histomorphological changes in wound tissues stained by Masson trichrome and HE on day 17.

2). Meng J et al. Hsp90β promotes aggressive vasculogenic mimicry via epithelial-mesenchymal transition in hepatocellular carcinoma. Oncogene 2018 Aug 7 (PubMed: 30087438) [IF=6.634]

3). Wang H et al. Oleanolic acid inhibits epithelial-mesenchymal transition of hepatocellular carcinoma by promoting iNOS dimerization. Mol Cancer Ther 2018 Oct 8 (PubMed: 30297361) [IF=4.856]

4). Cao X et al. TRB3 interacts with ERK and JNK and contributes to the proliferation, apoptosis, and migration of lung adenocarcinoma cells. J Cell Physiol 2019 Jun 29 (PubMed: 31256425) [IF=4.522]

5). Duan R et al. A De Novo Frameshift Mutation in TNFAIP3 Impairs A20 Deubiquitination Function to Cause Neuropsychiatric Systemic Lupus Erythematosus. J Clin Immunol 2019 Oct 17 (PubMed: 31625129) [IF=4.128]

6). Yi L et al. Inflammation-mediated SOD-2 upregulation contributes to epithelial-mesenchymal transition and migration of tumor cells in aflatoxin G1-induced lung adenocarcinoma. Sci Rep 2017 Aug 11;7(1):7953 (PubMed: 28801561) [IF=4.011]

Application: WB    Species:human;    Sample:Not available

(d) Te expression of MMP2 and MMP9 at protein level was shown by Western blot. Band intensity is coming from densitometry, and data was shown as mean±SD

Application: IHC    Species:human;    Sample:Not available

(c) Representative immunohistochemical staining of MMP2 and MMP9 in AFG1-induced lung adenocarcinoma.

7). Li H et al. MicroRNA-181a regulates epithelial-mesenchymal transition by targeting PTEN in drug-resistant lung adenocarcinoma cells. Int J Oncol 2015 Oct;47(4):1379-92 (PubMed: 26323677) [IF=3.571]

Application: WB    Species:human;    Sample:A549 cells

Figure 3. A549/DDP and A549/PTX cells showed molecular and morphological changes that were consistent with EMT. (A) microscopy at x200 magnification was used to assess cell morphology. The A549 cells (parental cells) had an epithelioid, rounded cobblestone appearance and there was limited formation of pseudopodia. A549/PTX and A549/DDP cells exhibited a spindle-shaped morphology and an increased formation of pseudopodia, indicating a loss of cell polarity. (B) E-cadherin, β-catenin, vimentin, MMP-2 and MMP-9 which are EMT-related proteins, were assessed in terms of expression levels. EMT-related transcription factors (Snail, Slug, Twist and ZEB1) were measured in A549/PTX and A549/DDP cells using western blot analysis. (C) The expression changes were confirmed at the mRNA level by qRT-PCR. Expression was standardized to the expression of GAPDH and normalized to 1.0 in the parental cells (compared with the parental A549 cells, means ± SEM, n=3, * P<0.05)

8). Wang J et al. Carotid baroreceptor stimulation improves cardiac performance and reverses ventricular remodelling in canines with pacing-induced heart failure. Life Sci 2019 Feb 24 (PubMed: 30811965) [IF=3.448]

9). Tan ZB et al. Rheum palmatum extract exerts anti-hepatocellular carcinoma effects by inhibiting signal transducer and activator of transcription 3 signaling. J Ethnopharmacol 2018 Dec 13 (PubMed: 30553869) [IF=3.414]

10). Bai Y et al. BCL2L10 inhibits growth and metastasis of hepatocellular carcinoma both in vitro and in vivo. Mol Carcinog 2017 Mar;56(3):1137-1149 (PubMed: 27770580) [IF=3.411]

Application: WB    Species:human;    Sample:HepG2

Figure 6. Effect of BCL2L10 on its downstream gene expression profiles of human cancer pathway in HepG2 cells. (A) By human cancer pathway PCR array, ectopic expression of BCL2L10 up- or down-regulated several genes related to tumor proliferation, apoptosis, metastasis and angiogenesis. (B) Western blot was performed to confirm the downstream gene expression regulated by BCL2L10 in HepG2 cells. GAPDH was used as an internal control. (C) Schematic diagram of the molecular events for BCL2L10 function as a tumor suppressor through regulating cell cycle, proliferation, apoptosis metastasis and angiogenesis effectors.

11). He Y et al. Quercetin reverses experimental pulmonary arterial hypertension by modulating the TrkA pathway. Exp Cell Res 2015 Nov 15;339(1):122-34 (PubMed: 26476374) [IF=3.329]

Application: WB    Species:rat;    Sample:rat

Fig. 5. Dose-response study of quercetin on the migration of PASMCs in vitro. (A) Photographs of the PASMCs migration through the polycarbonate membrane stained by 0.2% crystal violet in hypoxia and treated with increasing concentrations of quercetin for 24 h. (B) Quantification of the number of cells migrating through the polycarbonate membrane of average of 3 independent experiments. (C) Full-length blots of MMP-2, MMP-9, CXCR4, Integrin α1, β1, and α5 and GAPDH are presented. (D) Results were quantified by densitometry analysis of the bands form (C) and then normalization to GAPDH protein. *Po0.05, **Po0.01 compared with control; #Po0.05, ##Po0.01 compared with hypoxia and quercetin treated PASMCs.

12). Chen Z et al. Lower Expression of Gelsolin in Colon Cancer and Its Diagnostic Value in Colon Cancer Patients. J Cancer 2019 Jan 30;10(5):1288-1296 (PubMed: 30854138) [IF=3.182]

13). Jie L et al. Dencichine ameliorates kidney injury in induced type II diabetic nephropathy via the TGF-β/Smad signalling pathway. Eur J Pharmacol 2017 Oct 5;812:196-205 (PubMed: 28633927) [IF=3.170]

Application: WB    Species:rat;    Sample:Not available

MMP-9 and TIMP-1 western blot analysis (C) was performed on lysates from the kidney cortex, and the band intensity ratios were quantified.

Application: IF/ICC    Species:rat;    Sample:Not available

De increases the ratio of MMP-9 to TIMP-1. The immunofluorescence of MMP-9 and TIMP-1 in vivo (A) (upper panel) and in vitro (B) (lower panel);

14). Luan P et al. Neuroprotective effect of salvianolate on cerebral ischaemia-reperfusion injury in rats by inhibiting the Caspase-3 signal pathway. Eur J Pharmacol 2020 Jan 21:172944 (PubMed: 31978424) [IF=3.170]

15). Liu Y et al. Fucoxanthin Activates Apoptosis via Inhibition of PI3K/Akt/mTOR Pathway and Suppresses Invasion and Migration by Restriction of p38-MMP-2/9 Pathway in Human Glioblastoma Cells. Neurochem Res 2016 Oct;41(10):2728-2751 (PubMed: 27394418)

Application: WB    Species:human;    Sample:u87

d Cell lysates were electrophoresed and MMP- 2/9 and uPA proteins were detected by their respective specific antibodies in indicated concentrations

16). Shao Q et al. MicroRNA-139-5p affects cisplatin sensitivity in human nasopharyngeal carcinoma cells by regulating the epithelial-to-mesenchymal transition. Gene 2018 Apr 30;652:48-58 (PubMed: 29427737)

17). Shi S et al. CRTC2 promotes non-small cell lung cancer A549 migration and invasion in vitro. Thorac Cancer 2018 Jan;9(1):136-141 (PubMed: 29105369)

18). Shi S et al. CRTC2 promotes non-small cell lung cancer A549 migration and invasion in vitro. Thorac Cancer 2018 Jan;9(1):136-141 (PubMed: 29105369)

19). Xie LJ et al. Propofol protects against blood-spinal cord barrier disruption induced by ischemia/reperfusion injury. Neural Regen Res 2017 Jan;12(1):125-132 (PubMed: 28250758)

Application: WB    Species:rabbit;    Sample:Not available

(A) MMP-9 protein expression. MMP-9 expression is expressed as the optical density ratio of MMP-9 to GAPDH.

20). Feng T et al. The microRNA‑708‑5p/ZEB1/EMT axis mediates the metastatic potential of osteosarcoma. Oncol Rep 2020 Feb;43(2):491-502 (PubMed: 31894343)

21). Liu H et al. High expression of SMARCE1 predicts poor prognosis and promotes cell growth and metastasis in gastric cancer. Cancer Manag Res 2019 Apr 23;11:3493-3509 (PubMed: 31118775)

22). Wu Z et al. MFAP5 promotes tumor progression and bone metastasis by regulating ERK/MMP signaling pathways in breast cancer. Biochem Biophys Res Commun 2018 Apr 6;498(3):495-501 (PubMed: 29526753)

23). Wang B et al. Effects and mechanism of siomycin A on the growth and apoptosis of MiaPaCa-2 cancer cells. Oncol Lett 2019 Sep;18(3):2869-2876 (PubMed: 31452766)

24). Sun C et al. Hsa-miR-326 targets CCND1 and inhibits non-small cell lung cancer development. Oncotarget 2016 Feb 16;7(7):8341-59 (PubMed: 26840018)

Application: WB    Species:Not available;    Sample:Not available

Figure 7: Ectopic expression of miR-326 in A549 and SPC-A-1 cells reduces cell migration and invasion motility. (E) Expression of MMP-7 and MMP-9 protein in A549 and SPC-A-1 cells after transfection.

25). Wang JL et al. Downregulation of castor zinc finger 1 predicts poor prognosis and facilitates hepatocellular carcinoma progression via MAPK/ERK signaling. J Exp Clin Cancer Res 2018 Mar 5;37(1):45 (PubMed: 29506567)

26). et al. α7nAChR Prevents Premature Cervical Ripening by Inducing M2 Macrophage Polarization and Myofibroblast Differentiation.

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Catalog Number :

(Blocking peptide available as AF5228-BP)

Price/Size :

Tips: For phospho antibody, we provide phospho peptide(0.5mg) and non-phospho peptide(0.5mg).

Function :

Blocking peptides are peptides that bind specifically to the target antibody and block antibody binding. These peptide usually contains the epitope recognized by the antibody. Antibodies bound to the blocking peptide no longer bind to the epitope on the target protein. This mechanism is useful when non-specific binding is an issue, for example, in Western blotting (immunoblot) and immunohistochemistry (IHC). By comparing the staining from the blocked antibody versus the antibody alone, one can see which staining is specific; Specific binding will be absent from the western blot or immunostaining performed with the neutralized antibody.

Format and storage :

Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 10 mg/ml.The purity is >90%,tested by HPLC and MS.Storage Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.

Precautions :

This product is for research use only. Not for use in diagnostic or therapeutic procedures.

High similarity Medium similarity Low similarity No similarity
P14780 as Substrate
Site PTM Type Enzyme
T37 Phosphorylation
C99 S-Nitrosylation
Y241 Phosphorylation
S628 Phosphorylation
IMPORTANT: For western blots, incubate membrane with diluted antibody in 5% w/v milk , 1X TBS, 0.1% Tween®20 at 4°C with gentle shaking, overnight.

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