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- Table of Contents
Designing an IHC experiment for ATP4A? The guide has the expected staining pattern, antigen retrieval and fixation, antibodies backed by real IHC images, the tissue controls to run alongside, and protocols taken from published papers.
Open the ATP4A IHC GuideFacts about Potassium-transporting ATPase alpha chain 1.
Catalyzes the hydrolysis of ATP coupled with the exchange of H(+) and K(+) ions across the plasma membrane.
Responsible for acid production in the stomach..
| Human | |
|---|---|
| Gene Name: | ATP4A |
| Uniprot: | P20648 |
| Entrez: | 495 |

| Belongs to: |
|---|
| cation transport ATPase (P-type) (TC 3.A.3) family |

ATP6Agastric H; ATPase, H+/K+ exchanging, alpha polypeptide; ATPase, H+/K+ transporting, alpha polypeptide; EC 3.6.3; EC 3.6.3.10; gastric H; Gastric H(+)/K(+) ATPase subunit alpha; gastric H+/K+ ATPase alpha subunit; gastric hydrogen-potassium ATPase; H(+)-K(+)-ATPase alpha subunit; K-ATPase alpha subunit; K-ATPase catalytic subunit; potassium-transporting ATPase alpha chain 1; Proton pump
Mass (kDA):
114.119 kDA

| Human | |
|---|---|
| Location: | 19q13.12 |
| Sequence: | 19; NC_000019.10 (35550031..35563658, complement) |
Found in gastric mucosa.
Cell membrane; Multi-pass membrane protein.




PMID: 2160952 by Maeda M., et al. Human gastric (H+ + K+)-ATPase gene. Similarity to (Na+ + K+)-ATPase genes in exon/intron organization but difference in control region.
PMID: 2176086 by Newman P.R., et al. Structure of the human gastric H,K-ATPase gene and comparison of the 5'-flanking sequences of the human and rat genes.