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Description
Human PTP1B Protein, His tagProduct Specification Species Human Synonyms Tyrosine protein phosphatase non receptor type 1, Protein tyrosine phosphatase 1B (PTP 1B), PTPN1 Accession P18031 Amino Acid Sequence Protein sequence (P18031, Met1 Asp298, with C His tag)
Product Specification
| Species | Human |
| Synonyms | Tyrosine-protein phosphatase non-receptor type 1, Protein-tyrosine phosphatase 1B (PTP-1B), PTPN1 |
| Accession | P18031 |
| Amino Acid Sequence | Protein sequence (P18031, Met1-Asp298, with C-His tag) MEMEKEFEQIDKSGSWAAIYQDIRHEASDFPCRVAKLPKNKNRNRYRDVSPFDHSRIKLHQEDNDYINASLIKMEEAQRSYILTQGPLPNTCGHFWEMVWEQKSRGVVMLNRVMEKGSLKCAQYWPQKEEKEMIFEDTNLKLTLISEDIKSYYTVRQLELENLTTQETREILHFHYTTWPDFGVPESPASFLNFLFKVRESGSLSPEHGPVVVHCSAGIGRSGTFCLADTCLLLMDKRKDPSSVDIKKVLLEMRKFRMGLIQTADQLRFSYLAVIEGAKFIMGDSSVQDQWKELSHED |
| Expression System | E.coli |
| Molecular Weight | Predicted MW: 36.4 kDa Observed MW: 35 kDa |
| Purity | ＞95% by SDS-PAGE |
| Endotoxin | <0.1EU/μg |
| Conjugation | Unconjugated |
| Tag | with C-His tag |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | Lyophilized from a 0.2 μm filtered solution of 0.2M PBS, pH7.4 with 3% trehalose. |
| Reconstitution | Reconstitute no more than 1 mg/mL according to the size in deionized water after rapid centrifugation. |
| Stability & Storage | 12 months from date of receipt, -20 to -70 °C as supplied. |
Background
Protein - tyrosine phosphatase 1B (PTP1B) is a crucial enzyme belonging to the protein tyrosine phosphatase family. PTP1B is widely distributed in various tissues such as adipose, liver, muscle, and epithelial cells, mainly located in the endoplasmic reticulum of the cytoplasm. It specifically hydrolyzes the phosphate group on the phosphorylated tyrosine residue, maintaining the balance of tyrosine protein phosphorylation with protein tyrosine kinases and participating in cell signal transduction. PTP1B negatively regulates the insulin and leptin signaling pathways, and its over - expression is closely related to the occurrence of type 2 diabetes, obesity, and other diseases.
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