Invitrogen

PTPN22 Polyclonal Antibody

Product Image Gallery

PTPN22 Antibody in Western Blot (WB) — Western blot analysis of PTPN22 in EC304 cell lysate (left lane: treated with blocking peptide). Samples were incubated with PTPN22 polyclonal antibody (Product # PA5-99219).

PTPN22 Antibody in Immunocytochemistry (ICC/IF) — Immunofluorescent analysis of PTPN22 in HeLa cells. Samples were fixed with paraformaldehyde, permeabilized with 0.1% Triton X-100, blocked with 10% serum (45 min at 25°C), incubated with mouse anti-beta tubulin and PTPN22 polyclonal antibody (Product # PA5-99219) using a dilution of 1:200 (1 hr, 37°C), and followed by goat anti-rabbit IgG Alexa Fluor 594 (red) and goat anti-mouse IgG Alexa Fluor 488 (green).

Product Details

Applications

Tested Dilution

Publications

Western Blot (WB)

1:500-1:3000

Immunocytochemistry (ICC/IF)

1:100-1:500

Product Specifications

Species Reactivity

Human, Mouse, Rat

Host/Isotype

Rabbit / IgG

Class

Polyclonal

Type

Antibody

Immunogen

A synthesized peptide derived from human PTPN22, corresponding to a region within C-terminal amino acids.

Conjugate

Unconjugated

Form

Liquid

Concentration

1 mg/mL

Purification

Affinity chromatography

Storage buffer

PBS, pH 7.4, with 50% glycerol, 150mM NaCl

Contains

0.02% sodium azide

Storage conditions

-20°C

RRID

AB_2818152

Target Information

The protein tyrosine phosphatase PTPN22 (PTP22, LYP, PEP, formerly PTPN8) is a genetic variant that confers risk of developing diverse human autoimmune diseases such as type 1 diabetes and rheumatoid arthritis. The minor allele of a missense SNP in PTPN22 encodes a hematopoietic-specific protein tyrosine phosphatase also known as "Lyp." The risk allele is present in about 17% of Caucasian individuals from the general population and in approximately 28% of Caucasian individuals with rheumatoid arthritis; it is thought to disrupt the P1 proline-rich motif that is important for interaction with the Src homology-3 (SH3) domain of CSK (cytoplasmic tyrosine kinase), potentially altering the normal functions of these proteins as negative regulators of T cell activation. The interaction between CSK and PTPN22 is highly specific and it is speculated that PTPN22 may be an effector and/or regulator of CSK in T cells and other hematopoietic cells.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

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Bioinformatics

Protein Aliases: Hematopoietic cell protein-tyrosine phosphatase 70Z-PEP; Lymphoid phosphatase; lymphoid-specific protein tyrosine phosphatase; LyP; PEP; PEST domain-enriched tyrosine phosphatase; PEST-domain phosphatase; protein tyrosine phosphatase, non-receptor type 22 (lymphoid); protein tyrosine phosphatase, non-receptor type 8; tyrosine-phosphatase; Tyrosine-protein phosphatase non-receptor type 22

Gene Aliases: 70zpep; LYP; LYP1; LYP2; PEP; PTPN22; PTPN8

UniProt ID: (Human) Q9Y2R2, (Mouse) P29352

Entrez Gene ID: (Human) 26191, (Rat) 295338, (Mouse) 19260

Molecular Function: hydrolase phosphatase protein phosphatase