Seroatlas · Human Serome Atlas

CALML5

Calmodulin-like protein 5

Also known as: CALL5_HUMAN, CLSP

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q9NZT1
Gene
CALML5
Ensembl
ENSG00000178372
Chromosome
10
Canonical length
146 aa
Protein class
Plasma proteins, Predicted intracellular proteins, RAS pathway related proteins
Subcellular location
Plasma membrane,Cytosol

OverviewNCBI Gene

This gene encodes a novel calcium binding protein expressed in the epidermis and related to the calmodulin family of calcium binding proteins. Functional studies with recombinant protein demonstrate it does bind calcium and undergoes a conformational change when it does so. Abundant expression is detected only in reconstructed epidermis and is restricted to differentiating keratinocytes. In addition, it can associate with transglutaminase 3, shown to be a key enzyme in the terminal differentiation of keratinocytes. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

146 residues, UniProt reviewed canonical sequence.

>Q9NZT1|CALML5
     1  MAGELTPEEE AQYKKAFSAV DTDGNGTINA QELGAALKAT GKNLSEAQLR KLISEVDSDG
    61  DGEISFQEFL TAAKKARAGL EDLQVAFRAF DQDGDGHITV DELRRAMAGL GQPLPQEELD
   121  AMIREADVDQ DGRVNYEEFA RMLAQE

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against CALML5 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
Secreted
Secreted
Yes
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.37
Highest tissue expression
2,987 nTPM

Expression across tissuesHPA

Tissue

  • skin: 2,987 nTPM
  • salivary gland: 522 nTPM
  • vagina: 273 nTPM
  • cervix: 199 nTPM
  • esophagus: 64 nTPM
  • breast: 39 nTPM

Single-cell type

  • esophageal apical cells: 921 nCPM
  • salivary acinar cells: 610 nCPM
  • suprabasal keratinocytes: 333 nCPM
  • breast secretory cells: 204 nCPM
  • esophageal suprabasal cells: 168 nCPM
  • salivary myoepithelial cells: 143 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • amygdala: 0 nTPM
  • basal ganglia: 0 nTPM
  • cerebellum: 0 nTPM
  • cerebral cortex: 0 nTPM
  • choroid plexus: 0 nTPM
  • hippocampal formation: 0 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 missense Z
0.72
DepMap mean gene effect
0.01
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of CALML5 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 CALML5 as an antibody target. Whether an autoantibody or antibody against CALML5 could matter depends on whether native CALML5 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

CALML5 is annotated as secreted, so native CALML5 circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.

Annotation status

The present source text does not explicitly label CALML5 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/CALML5. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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