Z-domain of protein A scaffold protein anti-Human EGFR
CAT#: SZA-L219
This EGFR 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=25 nM ) for EGFR as determined by biosensor technology. It's potential to be used in diagnostic, research and therapeutic applications.
Gene Expression
Subcellular Location and Protein Expression
Figure 1 IF staining of human cell line A-431
Immunofluorescent staining of human cell line A-431 shows localization to plasma membrane & cell junctions.
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/18530/144_E9_2_selected.jpg
Subcellular Location and Protein Expression
Figure 2 IF staining of human cell line U-251 MG
Immunofluorescent staining of human cell line U-251 MG shows localization to plasma membrane.
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/18530/143_E9_1_blue_red_green.jpg
Normal Tissue
Figure 3 Colon
Glandular cells
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/18530/41191_A_9_3.jpg
Normal Tissue
Figure 4 Liver
Cholangiocytes
Staining:Medium
Intensity: Moderate
Quantity: 75%-25%
Location: Cytoplasmic/membranous
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/18530/41191_A_7_4.jpg
Normal Tissue
Figure 5 Kidney
Bowman's capsule
Staining:Medium
Intensity: Moderate
Quantity: 75%-25%
Collecting ducts
Staining:Medium
Intensity: Strong
Quantity: <25%
Distal tubules
Staining:Medium
Intensity: Strong
Quantity: <25%
Proximal tubules (cell body)
Staining:Medium
Intensity: Strong
Quantity: <25%
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/18530/41191_A_9_5.jpg
Normal Tissue
Figure 6 Testis
Leydig cells
Staining:Medium
Intensity: Moderate
Quantity:>75%
Pachytene spermatocytes
Staining:Medium
Intensity: Moderate
Quantity: 75%-25%
Round or early spermatids
Staining:Medium
Intensity: Moderate
Quantity: 75%-25%
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/18530/41191_A_6_6.jpg
Normal Tissue
Figure 7 Placenta
Cytotrophoblasts
Staining:High
Intensity: Strong
Quantity:>75%
Decidual cells
Staining:Medium
Intensity: Moderate
Quantity:>75%
Hofbauer cells
Staining:High
Intensity: Strong
Quantity:>75%
Syncytiotrophoblasts - cell body
Staining:High
Intensity: Strong
Quantity:>75%
Syncytiotrophoblasts - microvilli
Staining:High
Intensity: Strong
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/18530/41191_A_1_7.jpg
Normal Tissue
Figure 8 Lymph node
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/18530/41191_A_7_8.jpg
RNA Expression
Figure 9 RNA cell line category: Cell line enriched (A-431)
Cell lines ordered by descending RNA expression order.
* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/ENSG00000146648-EGFR
❮
❯
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
- EGFR
- Species Reactivity
- Human
- Expression Host
- E. coli
- Affinity Constant
- 25 nM
- Applications
- ELISA; IHC; Microscopy; FC; WB; FuncS
Target
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Related Diseases
Bladder Cancer
Non-small Cell Lung Cancer
Pancreatic Cancer
Hepatocellular Carcinoma
Cushing Syndrome
Related Signaling Pathways
JAK-STAT Signaling Pathway
Downloadable Resources
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Datasheet
MSDS
COA
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