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  • KD/KO Validated

PTP1B Polyclonal antibody

PTP1B Polyclonal Antibody for IF, IHC, IP, WB,ELISA

Host / Isotype

Rabbit / IgG


human, mouse, rat





Cat no : 11334-1-AP



Tested Applications

Positive WB detected inSp2/0 cells, BxPC-3 cells, A431 cells, HeLa cells, Jurkat cells, THP-1 cells, mouse liver tissue, human testis tissue, HL-60 cells, human placenta tissue, C6 cells, NIH/3T3 cells, mouse placenta tissue, rat liver tissue
Positive IP detected inA431 cells
Positive IHC detected inhuman prostate cancer tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
Positive IF detected inBxPC-3 cells

Recommended dilution

Western Blot (WB)WB : 1:2000-1:10000
Immunoprecipitation (IP)IP : 0.5-4.0 ug for IP and 1:500-1:1000 for WB
Immunohistochemistry (IHC)IHC : 1:20-1:200
Immunofluorescence (IF)IF : 1:10-1:100
Sample-dependent, check data in validation data gallery

Product Information

11334-1-AP targets PTP1B in WB, IP, IHC, IF, CoIP,ELISA applications and shows reactivity with human, mouse, rat samples.

Tested Reactivity human, mouse, rat
Cited Reactivity human, mouse, rat
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen PTP1B fusion protein Ag1878
Full Name protein tyrosine phosphatase, non-receptor type 1
Calculated molecular weight 435 aa, 50 kDa
Observed molecular weight 45-55 kDa
GenBank accession numberBC015660
Gene symbol PTPN1
Gene ID (NCBI) 5770
Conjugate Unconjugated
Form Liquid
Purification Method Antigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.

Background Information

PTPN1 (protein tyrosine phosphatase, non-receptor type 1) is also named as PTP1B or PTP-1B, and belongs to the protein-tyrosine phosphatase family and non-receptor class 1 subfamily. PTPN1 is involved in the regulation of several important physiological pathways, which regulates both INS and leptin signaling, and interacts with the epidermal-and platelet-derived growth factor receptors (PMID: 20101100). The gene might harbor variants influencing susceptibility to INS resistance and type 2 diabetes (PMID:15919813). The molecular mass of PTPN1 is 50 kDa, but sometimes some truncated forms can be detected as 48, 46, 39, 37 kDa due to non-specific proteolytic cleavage of PTP1B in different cells (PMID: 18253097).


Product Specific Protocols
WB protocol for PTP1B antibody 11334-1-APDownload protocol
IHC protocol for PTP1B antibody 11334-1-APDownload protocol
IF protocol for PTP1B antibody 11334-1-APDownload protocol
IP protocol for PTP1B antibody 11334-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols



Mol Pharm

Highly Selective Protein Tyrosine Phosphatase Inhibitor, 2,2',3,3'-Tetrabromo-4,4',5,5'-tetrahydroxydiphenylmethane, Ameliorates Type 2 Diabetes Mellitus in BKS db Mice.

Authors - Chao Li


PMID: 31159306

Authors - Takayuki Inoue

Biochem Biophys Res Commun

HDAC6 interacts with PTPN1 to enhance melanoma cells progression.

Authors - Jiaqi Liu

Aging (Albany NY)

Glycochenodeoxycholic acid induces stemness and chemoresistance via the STAT3 signaling pathway in hepatocellular carcinoma cells.

Authors - Changying Shi

Parkinsons Dis

Therapeutic Role of Protein Tyrosine Phosphatase 1B in Parkinson's Disease via Antineuroinflammation and Neuroprotection In Vitro and In Vivo.

Authors - Chien-Wei Feng
  • KD Validated

Cell Death Dis

The CREB/KMT5A complex regulates PTP1B to modulate high glucose-induced endothelial inflammatory factor levels in diabetic nephropathy.

Authors - Ting Huang
  • KD Validated