Seroatlas · Human Serome Atlas

SMARCAL1

SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A-like protein 1

Also known as: HARP, HHARP, SMAL1_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q9NZC9
Gene
SMARCAL1
Ensembl
ENSG00000138375
Chromosome
2
Canonical length
954 aa
Protein class
Disease related genes, Human disease related genes, Predicted intracellular proteins
Subcellular location
Nucleoplasm

OverviewNCBI Gene

The protein encoded by this gene is a member of the SWI/SNF family of proteins. Members of this family have helicase and ATPase activities and are thought to regulate transcription of certain genes by altering the chromatin structure around those genes. The encoded protein shows sequence similarity to the E. coli RNA polymerase-binding protein HepA. Mutations in this gene are a cause of Schimke immunoosseous dysplasia (SIOD), an autosomal recessive disorder with the diagnostic features of spondyloepiphyseal dysplasia, renal dysfunction, and T-cell immunodeficiency. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

954 residues, UniProt reviewed canonical sequence.

>Q9NZC9|SMARCAL1
     1  MSLPLTEEQR KKIEENRQKA LARRAEKLLA EQHQRTSSGT SIAGNPFQAK QGPSQNFPRE
    61  SCKPVSHGVI FKQQNLSSSS NADQRPHDSH SFQAKGIWKK PEEMPTACPG HSPRSQMALT
   121  GISPPLAQSP PEVPKQQLLS YELGQGHAQA SPEIRFTPFA NPTHKPLAKP KSSQETPAHS
   181  SGQPPRDAKL EAKTAKASPS GQNISYIHSS SESVTPRTEG RLQQKSGSSV QKGVNSQKGK
   241  CVRNGDRFQV LIGYNAELIA VFKTLPSKNY DPDTKTWNFS MNDYSALMKA AQSLPTVNLQ
   301  PLEWAYGSSE SPSTSSEGQA GLPSAPSLSF VKGRCMLISR AYFEADISYS QDLIALFKQM
   361  DSRRYDVKTR KWSFLLEEHS KLIAKVRCLP QVQLDPLPTT LTLAFASQLK KTSLSLTPDV
   421  PEADLSEVDP KLVSNLMPFQ RAGVNFAIAK GGRLLLADDM GLGKTIQAIC IAAFYRKEWP
   481  LLVVVPSSVR FTWEQAFLRW LPSLSPDCIN VVVTGKDRLT AGLINIVSFD LLSKLEKQLK
   541  TPFKVVIIDE SHFLKNSRTA RCRAAMPVLK VAKRVILLSG TPAMSRPAEL YTQIIAVKPT
   601  FFPQFHAFGL RYCDAKRMPW GWDYSGSSNL GELKLLLEEA VMLRRLKSDV LSQLPAKQRK
   661  IVVIAPGRIN ARTRAALDAA AKEMTTKDKT KQQQKDALIL FFNRTAEAKI PSVIEYILDL
   721  LESGREKFLV FAHHKVVLDA ITQELERKHV QHIRIDGSTS SAEREDLCQQ FQLSERHAVA
   781  VLSITAANMG LTFSSADLVV FAELFWNPGV LIQAEDRVHR IGQTSSVGIH YLVAKGTADD
   841  YLWPLIQEKI KVLAEAGLSE TNFSEMTEST DYLYKDPKQQ KIYDLFQKSF EKEGSDMELL
   901  EAAESFDPGS ASGTSGSSSQ NMGDTLDESS LTASPQKKRR FEFFDNWDSF TSPL

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against SMARCAL1 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)
0.4
Highest tissue expression
12 nTPM

Expression across tissuesHPA

Tissue

  • thymus: 12 nTPM
  • ovary: 11 nTPM
  • cervix: 9.9 nTPM
  • lymph node: 9.6 nTPM
  • skeletal muscle: 9.5 nTPM
  • blood vessel: 9.4 nTPM

Single-cell type

  • adrenal cortex cells: 64 nCPM
  • sertoli cells: 64 nCPM
  • megakaryocyte-erythroid progenitors: 58 nCPM
  • hematopoietic stem cells: 52 nCPM
  • myonuclei: 52 nCPM
  • retinal ganglion cells: 50 nCPM

Immune cell

  • basophil: 23 nTPM
  • NK-cell: 18 nTPM
  • non-classical monocyte: 15 nTPM
  • plasmacytoid DC: 14 nTPM
  • myeloid DC: 13 nTPM
  • memory CD8 T-cell: 12 nTPM

Brain region

  • white matter: 14 nTPM
  • thalamus: 14 nTPM
  • medulla oblongata: 14 nTPM
  • pons: 13 nTPM
  • midbrain: 12 nTPM
  • basal ganglia: 12 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about SMARCAL1.

Disease | AllUniProt

Conditions SMARCAL1 is implicated in, by any mechanism.

Disease | GeneticClinVar

167 pathogenic / likely-pathogenic of 1,365 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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)
0.61
gnomAD pLI
0
gnomAD missense Z
0.84
DepMap mean gene effect
0.04
DepMap dependency class
selective

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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of SMARCAL1 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 SMARCAL1 as an antibody target. Whether an autoantibody or antibody against SMARCAL1 could matter depends on whether native SMARCAL1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

SMARCAL1 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 SMARCAL1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/SMARCAL1. 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).

Loading the interactive Seroatlas protein explorer...