CRMP1
Dihydropyrimidinase-related protein 1
Also known as: DPYL1_HUMAN, DPYSL1, DRP-1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q14194
- Gene
- CRMP1
- Ensembl
- ENSG00000072832
- Chromosome
- 4
- Canonical length
- 572 aa
- Protein class
- Predicted intracellular proteins
- Subcellular location
- Centrosome,Cytosol
- Quaternary structure
- Homotetramer
OverviewNCBI Gene
This gene encodes a member of a family of cytosolic phosphoproteins expressed exclusively in the nervous system. The encoded protein is thought to be a part of the semaphorin signal transduction pathway implicated in semaphorin-induced growth cone collapse during neural development. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
572 residues, UniProt reviewed canonical sequence.
>Q14194|CRMP1
1 MSYQGKKSIP HITSDRLLIK GGRIINDDQS LYADVYLEDG LIKQIGENLI VPGGVKTIEA
61 NGRMVIPGGI DVNTYLQKPS QGMTAADDFF QGTRAALVGG TTMIIDHVVP EPGSSLLTSF
121 EKWHEAADTK SCCDYSLHVD ITSWYDGVRE ELEVLVQDKG VNSFQVYMAY KDVYQMSDSQ
181 LYEAFTFLKG LGAVILVHAE NGDLIAQEQK RILEMGITGP EGHALSRPEE LEAEAVFRAI
241 TIAGRINCPV YITKVMSKSA ADIIALARKK GPLVFGEPIA ASLGTDGTHY WSKNWAKAAA
301 FVTSPPLSPD PTTPDYLTSL LACGDLQVTG SGHCPYSTAQ KAVGKDNFTL IPEGVNGIEE
361 RMTVVWDKAV ATGKMDENQF VAVTSTNAAK IFNLYPRKGR IAVGSDADVV IWDPDKLKTI
421 TAKSHKSAVE YNIFEGMECH GSPLVVISQG KIVFEDGNIN VNKGMGRFIP RKAFPEHLYQ
481 RVKIRNKVFG LQGVSRGMYD GPVYEVPATP KYATPAPSAK SSPSKHQPPP IRNLHQSNFS
541 LSGAQIDDNN PRRTGHRIVA PPGGRSNITS LGLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CRMP1 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)
- 0.28
- Highest tissue expression
- 83 nTPM
Expression across tissuesHPA
Tissue
- cerebellum: 83 nTPM
- cerebral cortex: 79 nTPM
- pituitary gland: 64 nTPM
- amygdala: 63 nTPM
- hypothalamus: 61 nTPM
- hippocampal formation: 57 nTPM
Single-cell type
- retinal horizontal cells: 269 nCPM
- retinal bipolar cells: 217 nCPM
- retinal amacrine cells: 141 nCPM
- müller glia: 127 nCPM
- lactotrophs: 124 nCPM
- epicardial cells: 121 nCPM
Immune cell
- naive B-cell: 0.4 nTPM
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
Brain region
- hippocampal formation: 112 nTPM
- cerebral cortex: 110 nTPM
- hypothalamus: 108 nTPM
- basal ganglia: 99 nTPM
- thalamus: 85 nTPM
- amygdala: 82 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CRMP1.
Disease | GeneticClinVar
1 pathogenic / likely-pathogenic of 131 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- See cases
ReferencesPubMed · IEDB
Publications for CRMP1 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
2 publications
- Antibodies to CRMP3-4 associated with limbic encephalitis and thymoma.
2007 · Clin Exp Immunol · RCR 0.9 · 30 citations - Maternal anti-collapsin response mediator protein 1 antibody inducing autism-like behaviors in offspring.
2026 · Neurobiol Dis
Reference: B cellIEDB
1 publication
- Identification of the antigenic epitopes of maternal autoantibodies in autism spectrum disorders.
2018 · Brain Behav Immun · RCR 1.2 · 27 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. IEDB — curated epitope assays from the Immune Epitope Database (Vita et al., Nucleic Acids Research 2019). 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)
- 0.28
- gnomAD pLI
- 0.99
- gnomAD missense Z
- 2.41
- DepMap mean gene effect
- -0.04
- DepMap dependency class
- none
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
- negative regulation of neuron projection development
- nervous system development
- nucleobase-containing compound metabolic process
- regulation of postsynapse assembly
- semaphorin-plexin signaling pathway
Molecular functions
- filamin binding
- hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amides
- identical protein binding
- phosphoprotein binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CRMP1 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 CRMP1 as an antibody target. Whether an autoantibody or antibody against CRMP1 could matter depends on whether native CRMP1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CRMP1 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 CRMP1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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