Z-domain of protein A scaffold protein anti-Human CD25
CAT#: SZA-L215
This CD25 specific binding protein (Z-domain of protein A) was investigated by an α-helix shuffling strategy. The primary scaffold protein was from a naive combinatorial library of the three-helix bundle Z domain derived from staphylococcal protein A. A hierarchical library was constructed through selective re-randomization of six amino acid positions in one of the two α-helices of the domain, making up the Taq DNA polymerase binding surface. After selections using monovalent phage display technology, second generation variants were identified having affinities (KD=10 pM) for CD25 as determined by biosensor technology. It's potential to be used in diagnostic, research and therapeutic applications.
Gene Expression
Normal Tissue
Figure 1 Lymph node
Germinal center cells
Staining: Medium
Intensity: Strong
Quantity: <25%
Location: Cytoplasmic/membranous
Non-germinal center cells
Staining: Medium
Intensity: Strong
Quantity: <25%
Location: Cytoplasmic/membranous
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/54622/137874_A_8_8.jpg
Normal Tissue
Figure 2 Tonsil
Non-germinal center cells
Staining: Medium
Intensity: Strong
Quantity: <25%
Location: Cytoplasmic/membranous
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/54622/137874_A_4_8.jpg
RNA Expression
Figure 3 RNA cell line category: Cell line enriched (HDLM-2)
Cell lines ordered by descending RNA expression order.
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/ENSG00000134460-IL2RA
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Specifications
- Scaffold Name
- Z-domain of protein A
- Origin
- Staphylococcal protein A
- Core Structure
- 3-α helixes
- Variable Regions
- 13 Residues on first and second helix surface
- Target
- CD25
- Species Reactivity
- Human
- Expression Host
- E. coli
- Affinity Constant
- 10 pM
- Applications
- ELISA; IHC; Microscopy; FC; WB; FuncS
Target
- Alternative Names
- Staphylococcal protein A; Z-domain of protein A; IL2RA; interleukin 2 receptor, alpha; p55; CD25; IL2R; TCGFR; IDDM10; interleukin-2 receptor subunit alpha; TAC antigen; IL-2R subunit alpha; IL-2 receptor subunit alpha; scFv; Hodgkin's lymphoma; lymphoma; Pseudomonas exotoxin; Pseudomonas exotoxin A; Pseudomonas aeruginosa exotoxin; Pseudomonas aeruginosa exotoxin A; PE; PE38; PE40; ETA; PE33; PE35
- Gene ID
- 3559
- UniProt ID
- P01589
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Datasheet
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COA
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