ACTL7A
Actin-like protein 7A
Also known as: ACL7A_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9Y615
- Gene
- ACTL7A
- Ensembl
- ENSG00000187003
- Chromosome
- 9
- Canonical length
- 435 aa
- Protein class
- Predicted intracellular proteins
- Subcellular location
- Acrosome
OverviewNCBI Gene
The protein encoded by this gene is a member of a family of actin-related proteins (ARPs) which share significant amino acid sequence identity to conventional actins. Both actins and ARPs have an actin fold, which is an ATP-binding cleft, as a common feature. The ARPs are involved in diverse cellular processes, including vesicular transport, spindle orientation, nuclear migration and chromatin remodeling. This gene (ACTL7A), and related gene, ACTL7B, are intronless, and are located approximately 4 kb apart in a head-to-head orientation within the familial dysautonomia candidate region on 9q31. Based on mutational analysis of the ACTL7A gene in patients with this disorder, it was concluded that it is unlikely to be involved in the pathogenesis of dysautonomia. The ACTL7A gene is expressed in a wide variety of adult tissues, however, its exact function is not known. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
435 residues, UniProt reviewed canonical sequence.
>Q9Y615|ACTL7A
1 MWAPPAAIMG DGPTKKVGNQ APLQTQALQT ASLRDGPAKR AVWVRHTSSE PQEPTESKAA
61 KERPKQEVTK AVVVDLGTGY CKCGFAGLPR PTHKISTTVG KPYMETAKTG DNRKETFVGQ
121 ELNNTNVHLK LVNPLRHGII VDWDTVQDIW EYLFRQEMKI APEEHAVLVS DPPLSPHTNR
181 EKYAEMLFEA FNTPAMHIAY QSRLSMYSYG RTSGLVVEVG HGVSYVVPIY EGYPLPSITG
241 RLDYAGSDLT AYLLGLLNSA GNEFTQDQMG IVEDIKKKCC FVALDPIEEK KVPLSEHTIR
301 YVLPDGKEIQ LCQERFLCSE MFFKPSLIKS MQLGLHTQTV SCLNKCDIAL KRDLMGNILL
361 CGGSTMLSGF PNRLQKELSS MCPNDTPQVN VLPERDSAVW TGGSILASLQ GFQPLWVHRF
421 EYEEHGPFFL YRRCFLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ACTL7A 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)
- 0.32
- Highest tissue expression
- 219 nTPM
Expression across tissuesHPA
Tissue
- testis: 219 nTPM
- breast: 0.1 nTPM
- prostate: 0.1 nTPM
- adipose tissue: 0 nTPM
- adrenal gland: 0 nTPM
- amygdala: 0 nTPM
Single-cell type
- late spermatids: 7,543 nCPM
- early spermatids: 1,603 nCPM
- late primary spermatocytes: 424 nCPM
- leydig cells: 7.6 nCPM
- sertoli cells: 6.2 nCPM
- peritubular myoid cells: 5.8 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
- cerebellum: 0.5 nTPM
- cerebral cortex: 0.5 nTPM
- hypothalamus: 0.4 nTPM
- white matter: 0.4 nTPM
- amygdala: 0.3 nTPM
- basal ganglia: 0.3 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about ACTL7A.
Disease | AllUniProt
Conditions ACTL7A is implicated in, by any mechanism.
- Spermatogenic failure 86 (SPGF86) MIM:620499
Disease | GeneticClinVar
8 pathogenic / likely-pathogenic of 85 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Spermatogenic failure 86
- Male infertility with normal semen parameters
ReferencesPubMed · IEDB
Publications for ACTL7A 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
- Immune Infertility Should Be Positively Diagnosed Using an Accurate Method by Monitoring the Level of Anti-ACTL7a Antibody.
2016 · Sci Rep · RCR 0.7 · 12 citations - Anti-ACTL7a antibodies: a cause of infertility.
2012 · Fertil Steril · RCR 0.5 · 16 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. 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)
- 1.33
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.18
- DepMap mean gene effect
- -0.03
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% 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
- Actin family
- ATPase, nucleotide binding domain
- Actin
- Actin-like protein 7A, N-terminal
- Actin-like protein 7A N-terminus
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ACTL7A 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 ACTL7A as an antibody target. Whether an autoantibody or antibody against ACTL7A could matter depends on whether native ACTL7A is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ACTL7A 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 ACTL7A as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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