Human Protein Reference Database

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Acid phosphatase
Acyltransferase
Adapter molecule
Adenosyltransferase
Adenylate cyclase
Adhesion molecule
Aldolase
Alkaline phosphatase
Aminopeptidase
Amylase
Anchor protein
Aspartic protease
ATPase
B cell antigen receptor
Calcium binding protein
Carbonic anhydrase
Carboxylase
Carboxypeptidase
Catalase
Cell cycle control protein
Cell junction protein
Cell surface receptor
Chaperone
Chemokine
Coagulation factor
Complement protein
Complement receptor
Cysteine protease
Cytokine
Cytokine receptor
Cytoskeletal associated protein
Cytoskeletal protein
Decarboxylase
Deacetylase
Deaminase
Defensin
Dehydratase
Dehydrogenase
Deoxyribonuclease
DNA binding protein
DNA endonuclease

DNA exonuclease
DNA helicase
DNA ligase
DNA methyltransferase
DNA polymerase
DNA repair protein
DNA telomerase
Dual specificity kinase
Dual specificity phosphatase
Epimerase
Endopeptidase
Enzyme regulator
Esterase
Extracellular ligand gated channel
Extracellular matrix protein
Galactosidase
Galactosyltransferase
Glucosaminyltransferase
Glucosidase
Glucuronidase
Glutathione transferase
Glycosidase
Glycosylase
Glycosyltransferase
G protein
G protein coupled receptor
Growth factor
Growth inhibitory factor
GTPase
GTPase activating protein
Guanine nucleotide exchange factor
Guanylate cyclase
Guanyl cyclase
Heat shock protein
Hydratase
Hydrolase
Hydroxylase
Immunoglobulin
Integral membrane protein
Intracellular ligand gated channel
Inward rectifier channel

Ion channel, other
Isomerase
Ligand
Ligase
Lipase
Lipid Kinase
Lipid phosphatase
Lyase
Membrane bound ligand
Membrane transport protein
Metallo protease
Methyltransferase
Motor protein
Mutase
MHC complex protein
Neuraminidase
Nuclear receptor
Nucleotidyltransferase
NADase
Oxidase
Oxidoreductase
Oxygenase
Peptide hormone
Peroxidase
Phosphatase,others
Phosphodiesterase
Phosphohydrolase
Phospholipase
Phosphorylase
Phosphotransferase
Phosphotriesterase
Prenyltransferase
Protease, unclassified
Protease inhibitor
Racemase
Reductase
Receptor serine/threonine kinase
Receptor tyrosine kinase
Receptor tyrosine phosphatase
Regulatory/other subunit
Reverse transcriptase

Ribonuclease
Ribonucleoprotein
Ribosomal subunit
Ribosyltransferase
RNA binding protein
RNA endonuclease
RNA exonuclease
RNA helicase
RNA methyltransferase
RNA polymerase
Secreted polypeptide, miscellaneous
Serine/threonine kinase
Serine/threonine phosphatase
Serine protease
Sialyltransferase
Storage protein
Structural protein
Sulphatase
Sulphohydrolase
Sulphotransferase
Superoxide dismutase
Synthetase
T cell antigen receptor
Thioesterase
Topoisomerase
Transaldolase
Transaminase
Transcription factor
Transcription regulatory protein
Transferase
Transketolase
Translation regulatory protein
Translocase
Transport/cargo protein
Tyrosine kinase
Tyrosine phosphatase
Ubiquitin proteasome system protein
Unclassified
Voltage gated channel
Water channel

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