ACE
Angiotensin-converting enzyme
Also known as: ACE_HUMAN, ACE1, CD143, DCP1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P12821
- Gene
- ACE
- Ensembl
- ENSG00000159640
- Chromosome
- 17
- Canonical length
- 1306 aa
- Protein class
- Candidate cardiovascular disease genes, CD markers, Disease related genes, Enzymes, FDA approved drug targets, Human disease related genes, Metabolic proteins, Plasma proteins, Predicted intracellular proteins, Predicted membrane proteins, Predicted secreted proteins
- Subcellular location
- Vesicles
- Secretome location
- Secreted to blood
- Quaternary structure
- Homodimer
OverviewNCBI Gene
This gene encodes an enzyme involved in blood pressure regulation and electrolyte balance. It catalyzes the conversion of angiotensin I into a physiologically active peptide angiotensin II. Angiotensin II is a potent vasopressor and aldosterone-stimulating peptide that controls blood pressure and fluid-electrolyte balance. This angiotensin converting enzyme (ACE) also inactivates the vasodilator protein, bradykinin. Accordingly, the encoded enzyme increases blood pressure and is a drug target of ACE inhibitors, which are often prescribed to reduce blood pressure. This enzyme additionally plays a role in fertility through its ability to cleave and release GPI-anchored membrane proteins in spermatozoa. Many studies have associated the presence or absence of a 287 bp Alu repeat element in this gene with the levels of circulating enzyme. This polymorphism, as well as mutations in this gene, have been implicated in a wide variety of diseases including cardiovascular pathophysiologies, psoriasis, renal disease, stroke, and Alzheimer's disease. Regulation of the homologous ACE2 gene may be involved in progression of disease caused by several human coronaviruses, including SARS-CoV and SARS-CoV-2. Alternative splicing results in multiple transcript variants encoding both somatic (sACE) and male-specific testicular (tACE) isoforms. [provided by RefSeq, Sep 2020]
Canonical amino-acid sequenceUniProt
1306 residues, UniProt reviewed canonical sequence.
>P12821|ACE
1 MGAASGRRGP GLLLPLPLLL LLPPQPALAL DPGLQPGNFS ADEAGAQLFA QSYNSSAEQV
61 LFQSVAASWA HDTNITAENA RRQEEAALLS QEFAEAWGQK AKELYEPIWQ NFTDPQLRRI
121 IGAVRTLGSA NLPLAKRQQY NALLSNMSRI YSTAKVCLPN KTATCWSLDP DLTNILASSR
181 SYAMLLFAWE GWHNAAGIPL KPLYEDFTAL SNEAYKQDGF TDTGAYWRSW YNSPTFEDDL
241 EHLYQQLEPL YLNLHAFVRR ALHRRYGDRY INLRGPIPAH LLGDMWAQSW ENIYDMVVPF
301 PDKPNLDVTS TMLQQGWNAT HMFRVAEEFF TSLELSPMPP EFWEGSMLEK PADGREVVCH
361 ASAWDFYNRK DFRIKQCTRV TMDQLSTVHH EMGHIQYYLQ YKDLPVSLRR GANPGFHEAI
421 GDVLALSVST PEHLHKIGLL DRVTNDTESD INYLLKMALE KIAFLPFGYL VDQWRWGVFS
481 GRTPPSRYNF DWWYLRTKYQ GICPPVTRNE THFDAGAKFH VPNVTPYIRY FVSFVLQFQF
541 HEALCKEAGY EGPLHQCDIY RSTKAGAKLR KVLQAGSSRP WQEVLKDMVG LDALDAQPLL
601 KYFQPVTQWL QEQNQQNGEV LGWPEYQWHP PLPDNYPEGI DLVTDEAEAS KFVEEYDRTS
661 QVVWNEYAEA NWNYNTNITT ETSKILLQKN MQIANHTLKY GTQARKFDVN QLQNTTIKRI
721 IKKVQDLERA ALPAQELEEY NKILLDMETT YSVATVCHPN GSCLQLEPDL TNVMATSRKY
781 EDLLWAWEGW RDKAGRAILQ FYPKYVELIN QAARLNGYVD AGDSWRSMYE TPSLEQDLER
841 LFQELQPLYL NLHAYVRRAL HRHYGAQHIN LEGPIPAHLL GNMWAQTWSN IYDLVVPFPS
901 APSMDTTEAM LKQGWTPRRM FKEADDFFTS LGLLPVPPEF WNKSMLEKPT DGREVVCHAS
961 AWDFYNGKDF RIKQCTTVNL EDLVVAHHEM GHIQYFMQYK DLPVALREGA NPGFHEAIGD
1021 VLALSVSTPK HLHSLNLLSS EGGSDEHDIN FLMKMALDKI AFIPFSYLVD QWRWRVFDGS
1081 ITKENYNQEW WSLRLKYQGL CPPVPRTQGD FDPGAKFHIP SSVPYIRYFV SFIIQFQFHE
1141 ALCQAAGHTG PLHKCDIYQS KEAGQRLATA MKLGFSRPWP EAMQLITGQP NMSASAMLSY
1201 FKPLLDWLRT ENELHGEKLG WPQYNWTPNS ARSEGPLPDS GRVSFLGLDL DAQQARVGQW
1261 LLLFLGIALL VATLGLSQRL FSIRHRSLHR HSHGPQFGSE VELRHSLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ACE can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 1
- Mean surface accessibility (rSASA)
- 0.23
- Highest tissue expression
- 250 nTPM
Expression across tissuesHPA
Tissue
- small intestine: 250 nTPM
- duodenum: 166 nTPM
- testis: 96 nTPM
- lung: 46 nTPM
- seminal vesicle: 22 nTPM
- thyroid gland: 18 nTPM
Single-cell type
- enterocytes: 90 nCPM
- late spermatids: 55 nCPM
- early spermatids: 17 nCPM
- tuft cells: 12 nCPM
- proximal tubule cells: 8.6 nCPM
- paneth cells: 7.7 nCPM
Immune cell
- memory B-cell: 1 nTPM
- non-classical monocyte: 0.7 nTPM
- memory CD4 T-cell: 0.5 nTPM
- memory CD8 T-cell: 0.4 nTPM
- MAIT T-cell: 0.2 nTPM
- gdT-cell: 0.1 nTPM
Brain region
- basal ganglia: 18 nTPM
- cerebral cortex: 5.7 nTPM
- thalamus: 5.2 nTPM
- pons: 3.9 nTPM
- hypothalamus: 3.4 nTPM
- medulla oblongata: 3.4 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about ACE.
Disease | AllUniProt
Conditions ACE is implicated in, by any mechanism.
- Ischemic stroke (ISCHSTR) MIM:601367
- Renal tubular dysgenesis (RTD) MIM:267430
- Microvascular complications of diabetes 3 (MVCD3) MIM:612624
- Intracerebral hemorrhage (ICH) MIM:614519
Disease | GeneticClinVar
65 pathogenic / likely-pathogenic of 850 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Renal tubular dysgenesis of genetic origin
- Microvascular complications of diabetes, susceptibility to, 3
- Hemorrhage, intracerebral, susceptibility to
- Renal tubular dysgenesis
- ACE-related disorder
ReferencesPubMed · IEDB
Publications for ACE from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
5 publications
- IgG autoantibodies against ACE2 in SARS-CoV-2 infected patients.
2023 · J Med Virol · RCR 2.8 · 26 citations - The higher immunoreactivity to ACE (angiotensin converting enzyme) in patients with type 2 diabetes mellitus than in non-diabetic individuals.
2003 · Endocr J · RCR 0.1 · 3 citations - [Diagnostic implications of detecting antibodies to angiotensin-converting enzyme and its substrates].
2003 · Klin Med (Mosk) · RCR 0 · 2 citations - [Detection of natural anti-angiotensin converting enzyme antibodies in human serum using immunoenzyme technique ].
2000 · Klin Lab Diagn · RCR 0 · 1 citations - Autoantibodies targeting angiotensin-converting enzyme 2 are prevalent and not induced by SARS-CoV-2 infection.
2025 · FASEB J · 2 citations
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.08
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.69
- DepMap mean gene effect
- -0.13
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- amyloid-beta metabolic process
- angiotensin maturation
- angiotensin-activated signaling pathway
- antigen processing and presentation of peptide antigen via MHC class I
- arachidonate secretion
- blood vessel diameter maintenance
- blood vessel remodeling
- bradykinin catabolic process
- cell proliferation in bone marrow
- heart contraction
- hematopoietic stem cell differentiation
- hormone catabolic process
- hormone metabolic process
- kidney development
- male gonad development
- negative regulation of gap junction assembly
- negative regulation of gene expression
- neutrophil mediated immunity
- peptide catabolic process
- positive regulation of systemic arterial blood pressure
- post-transcriptional regulation of gene expression
- proteolysis
- regulation of angiotensin metabolic process
- regulation of blood pressure
- regulation of heart rate by cardiac conduction
- regulation of hematopoietic stem cell proliferation
- regulation of renal output by angiotensin
- regulation of smooth muscle cell migration
- regulation of synaptic plasticity
- regulation of systemic arterial blood pressure by renin-angiotensin
- regulation of vasoconstriction
- spermatogenesis
- substance P catabolic process
- mononuclear cell proliferation
Molecular functions
- actin binding
- bradykinin receptor binding
- calmodulin binding
- chloride ion binding
- endopeptidase activity
- exopeptidase activity
- metallocarboxypeptidase activity
- metallodipeptidase activity
- metalloendopeptidase activity
- metallopeptidase activity
- mitogen-activated protein kinase binding
- mitogen-activated protein kinase kinase binding
- peptidase activity
- peptidyl-dipeptidase activity
- tripeptidyl-peptidase activity
- zinc ion binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads ACE as an antibody target. Whether an autoantibody or antibody against ACE could matter depends on whether native ACE is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ACE is annotated at the cell surface, where native ACE is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label ACE as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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