Z-domain of protein A scaffold protein anti-Human EGFR

Name: Z-domain of protein A scaffold protein anti-Human EGFR
SKU: SZA-L219
Rating: 5 (1 reviews)

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

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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
EGFR

Species Reactivity
Human

Expression Host
E. coli

Affinity Constant
25 nM

Applications
ELISA; IHC; Microscopy; FC; WB; FuncS

Target

Alternative Names
Staphylococcal protein A; Z-domain of protein A; ERBB; HER1; mENA; ERBB1; PIG61; NISBD2

Gene ID
1956

UniProt ID
P00533

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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

Download resources about recombinant antibody development and antibody engineering to boost your research.

Datasheet

Datasheet - SZA-L219.pdf

MSDS

MSDS - SZA-L219.pdf

COA

Certificate of Analysis Lookup

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