RCAN1
Calcipressin-1
Also known as: DSCR1, RCAN1_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P53805
- Gene
- RCAN1
- Ensembl
- ENSG00000159200
- Chromosome
- 21
- Canonical length
- 252 aa
- Protein class
- Human disease related genes, Predicted intracellular proteins
- Subcellular location
- Cytosol
OverviewNCBI Gene
The protein encoded by this gene interacts with calcineurin A and inhibits calcineurin-dependent signaling pathways, possibly affecting central nervous system development. This gene is located in the minimal candidate region for the Down syndrome phenotype, and is overexpressed in the brain of Down syndrome fetuses. Chronic overexpression of this gene may lead to neurofibrillary tangles such as those associated with Alzheimer disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2013]
Canonical amino-acid sequenceUniProt
252 residues, UniProt reviewed canonical sequence.
>P53805|RCAN1
1 MEDGVAGPQL GAAAEAAEAA EARARPGVTL RPFAPLSGAA EADEGGGDWS FIDCEMEEVD
61 LQDLPSATIA CHLDPRVFVD GLCRAKFESL FRTYDKDITF QYFKSFKRVR INFSNPFSAA
121 DARLQLHKTE FLGKEMKLYF AQTLHIGSSH LAPPNPDKQF LISPPASPPV GWKQVEDATP
181 VINYDLLYAI SKLGPGEKYE LHAATDTTPS VVVHVCESDQ EKEEEEEMER MRRPKPKIIQ
241 TRRPEYTPIH LSLocalizationUniProt · AlphaFold · HPA
Whether an antibody against RCAN1 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.54
- Highest tissue expression
- 426 nTPM
Expression across tissuesHPA
Tissue
- parathyroid gland: 426 nTPM
- liver: 240 nTPM
- choroid plexus: 129 nTPM
- spinal cord: 122 nTPM
- urinary bladder: 94 nTPM
- placenta: 90 nTPM
Single-cell type
- podocytes: 115 nCPM
- oligodendrocytes: 86 nCPM
- choroid plexus epithelial cells: 79 nCPM
- renal connecting tubule cells: 76 nCPM
- brain inhibitory neurons: 65 nCPM
- oligodendrocyte progenitor cells: 64 nCPM
Immune cell
- eosinophil: 4.9 nTPM
- plasmacytoid DC: 3 nTPM
- non-classical monocyte: 2.3 nTPM
- intermediate monocyte: 2 nTPM
- myeloid DC: 1.6 nTPM
- classical monocyte: 1.1 nTPM
Brain region
- white matter: 77 nTPM
- thalamus: 75 nTPM
- choroid plexus: 67 nTPM
- pons: 65 nTPM
- cerebral cortex: 65 nTPM
- medulla oblongata: 64 nTPM
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)
- 1.07
- gnomAD pLI
- 0.02
- gnomAD missense Z
- 1.02
- DepMap mean gene effect
- 0.08
- 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
- calcineurin-NFAT signaling cascade
- calcium-mediated signaling
- locomotion involved in locomotory behavior
- negative regulation of calcineurin-NFAT signaling cascade
- negative regulation of smooth muscle cell differentiation
- response to estrogen
- response to ischemia
- response to mechanical stimulus
- response to oxidative stress
- short-term memory
- skeletal muscle fiber development
Molecular functions
- calcium-dependent protein serine/threonine phosphatase regulator activity
- identical protein binding
- nucleic acid binding
- protein phosphatase inhibitor activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Calcipressin
- Nucleotide-binding alpha-beta plait domain superfamily
- RNA-binding domain superfamily
- Calcipressin
- Calcipressin-1, RNA recognition motif
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of RCAN1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads RCAN1 as an antibody target. Whether an autoantibody or antibody against RCAN1 could matter depends on whether native RCAN1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
RCAN1 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label RCAN1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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