NRCAM
Neuronal cell adhesion molecule
Also known as: Bravo, KIAA0343, NRCAM_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q92823
- Gene
- NRCAM
- Ensembl
- ENSG00000091129
- Chromosome
- 7
- Canonical length
- 1304 aa
- Protein class
- Disease related genes, Plasma proteins, Predicted membrane proteins, Predicted secreted proteins
- Subcellular location
- Nucleoplasm,Vesicles,Plasma membrane,Primary cilium,Cytosol
- Secretome location
- Secreted in brain
OverviewNCBI Gene
Cell adhesion molecules (CAMs) are members of the immunoglobulin superfamily. This gene encodes a neuronal cell adhesion molecule with multiple immunoglobulin-like C2-type domains and fibronectin type-III domains. This ankyrin-binding protein is involved in neuron-neuron adhesion and promotes directional signaling during axonal cone growth. This gene is also expressed in non-neural tissues and may play a general role in cell-cell communication via signaling from its intracellular domain to the actin cytoskeleton during directional cell migration. Allelic variants of this gene have been associated with autism and addiction vulnerability. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
1304 residues, UniProt reviewed canonical sequence.
>Q92823|NRCAM
1 MQLKIMPKKK RLSAGRVPLI LFLCQMISAL EVPLDPKLLE DLVQPPTITQ QSPKDYIIDP
61 RENIVIQCEA KGKPPPSFSW TRNGTHFDID KDPLVTMKPG TGTLIINIMS EGKAETYEGV
121 YQCTARNERG AAVSNNIVVR PSRSPLWTKE KLEPITLQSG QSLVLPCRPP IGLPPPIIFW
181 MDNSFQRLPQ SERVSQGLNG DLYFSNVLPE DTREDYICYA RFNHTQTIQQ KQPISVKVIS
241 VDELNDTIAA NLSDTEFYGA KSSRERPPTF LTPEGNASNK EELRGNVLSL ECIAEGLPTP
301 IIYWAKEDGM LPKNRTVYKN FEKTLQIIHV SEADSGNYQC IAKNALGAIH HTISVRVKAA
361 PYWITAPQNL VLSPGEDGTL ICRANGNPKP RISWLTNGVP IEIAPDDPSR KIDGDTIIFS
421 NVQERSSAVY QCNASNEYGY LLANAFVNVL AEPPRILTPA NTLYQVIANR PALLDCAFFG
481 SPLPTIEWFK GAKGSALHED IYVLHENGTL EIPVAQKDST GTYTCVARNK LGMAKNEVHL
541 EIKDPTWIVK QPEYAVVQRG SMVSFECKVK HDHTLSLTVL WLKDNRELPS DERFTVDKDH
601 LVVADVSDDD SGTYTCVANT TLDSVSASAV LSVVAPTPTP APVYDVPNPP FDLELTDQLD
661 KSVQLSWTPG DDNNSPITKF IIEYEDAMHK PGLWHHQTEV SGTQTTAQLK LSPYVNYSFR
721 VMAVNSIGKS LPSEASEQYL TKASEPDKNP TAVEGLGSEP DNLVITWKPL NGFESNGPGL
781 QYKVSWRQKD GDDEWTSVVV ANVSKYIVSG TPTFVPYLIK VQALNDMGFA PEPAVVMGHS
841 GEDLPMVAPG NVRVNVVNST LAEVHWDPVP LKSIRGHLQG YRIYYWKTQS SSKRNRRHIE
901 KKILTFQGSK THGMLPGLEP FSHYTLNVRV VNGKGEGPAS PDRVFNTPEG VPSAPSSLKI
961 VNPTLDSLTL EWDPPSHPNG ILTEYTLKYQ PINSTHELGP LVDLKIPANK TRWTLKNLNF
1021 STRYKFYFYA QTSAGSGSQI TEEAVTTVDE AGILPPDVGA GKVQAVNPRI SNLTAAAAET
1081 YANISWEYEG PEHVNFYVEY GVAGSKEEWR KEIVNGSRSF FGLKGLMPGT AYKVRVGAVG
1141 DSGFVSSEDV FETGPAMASR QVDIATQGWF IGLMCAVALL ILILLIVCFI RRNKGGKYPV
1201 KEKEDAHADP EIQPMKEDDG TFGEYSDAED HKPLKKGSRT PSDRTVKKED SDDSLVDYGE
1261 GVNGQFNEDG SFIGQYSGKK EKEPAEGNES SEAPSPVNAM NSFVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against NRCAM 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)
- 0.35
- Highest tissue expression
- 102 nTPM
Expression across tissuesHPA
Tissue
- cerebral cortex: 102 nTPM
- adrenal gland: 35 nTPM
- retina: 35 nTPM
- epididymis: 32 nTPM
- pancreas: 27 nTPM
- amygdala: 21 nTPM
Single-cell type
- pituitary stem cells: 2,104 nCPM
- oligodendrocyte progenitor cells: 1,949 nCPM
- bergmann glia: 1,269 nCPM
- adrenal cortex cells: 1,221 nCPM
- astrocytes: 935 nCPM
- corticotrophs: 770 nCPM
Immune cell
- naive CD8 T-cell: 2.1 nTPM
- naive CD4 T-cell: 0.3 nTPM
- total PBMC: 0.2 nTPM
- eosinophil: 0.1 nTPM
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
Brain region
- cerebral cortex: 237 nTPM
- thalamus: 234 nTPM
- basal ganglia: 215 nTPM
- hippocampal formation: 206 nTPM
- amygdala: 203 nTPM
- midbrain: 193 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about NRCAM.
Disease | AllUniProt
Conditions NRCAM is implicated in, by any mechanism.
- Neurodevelopmental disorder with neuromuscular and skeletal abnormalities (NEDNMS) MIM:619833
Disease | GeneticClinVar
14 pathogenic / likely-pathogenic of 260 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- NRCAM-related disorder
- Neurodevelopmental disorder with neuromuscular and skeletal abnormalities
Disease | ImmuneIEDB
Conditions an epitope on NRCAM was assayed in.
- glioblastoma T cell
- malignant astrocytoma T cell
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)
- 0.38
- gnomAD pLI
- 0.02
- gnomAD missense Z
- 1.91
- DepMap mean gene effect
- 0.01
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 7% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- angiogenesis
- axon guidance
- axonal fasciculation
- axonogenesis
- brain development
- cell-cell adhesion
- central nervous system development
- clustering of voltage-gated sodium channels
- intracellular protein localization
- neuron migration
- neuronal action potential propagation
- positive regulation of neuron differentiation
- regulation of axon extension
- regulation of neuron projection development
- regulation of postsynapse organization
- retinal ganglion cell axon guidance
- synapse assembly
Molecular functions
- ankyrin binding
- cell-cell adhesion mediator activity
- protein binding involved in heterotypic cell-cell adhesion
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Immunoglobulin/major histocompatibility complex, conserved site
- Immunoglobulin subtype 2
- Immunoglobulin domain subtype
- Fibronectin type III
- Immunoglobulin-like domain
- Immunoglobulin I-set
- Immunoglobulin-like fold
- Neurofascin/L1/NrCAM, C-terminal domain
- Fibronectin type III superfamily
- Immunoglobulin-like domain superfamily
- Neural and epithelial cell adhesion domain-containing protein
- Fibronectin type III domain
- Immunoglobulin I-set domain
- Bravo-like intracellular region
- Immunoglobulin domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of NRCAM 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 NRCAM as an antibody target. Whether an autoantibody or antibody against NRCAM could matter depends on whether native NRCAM is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
NRCAM is annotated at the cell surface, where native NRCAM 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 NRCAM as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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