LHX8
LIM/homeobox protein Lhx8
Also known as: Lhx7, LHX8_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q68G74
- Gene
- LHX8
- Ensembl
- ENSG00000162624
- Chromosome
- 1
- Canonical length
- 356 aa
- Protein class
- Predicted intracellular proteins, Transcription factors
- Subcellular location
- Nucleoplasm,Nucleoli,Cytosol
OverviewNCBI Gene
The protein encoded by this gene is a member of the LIM homeobox family of proteins, which are involved in patterning and differentiation of various tissue types. These proteins contain two tandemly repeated cysteine-rich double-zinc finger motifs known as LIM domains, in addition to a DNA-binding homeodomain. This family member is a transcription factor that plays a role in tooth morphogenesis. It is also involved in oogenesis and in neuronal differentiation. This gene is a candidate gene for cleft palate, and it is also associated with odontoma formation. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jan 2012]
Canonical amino-acid sequenceUniProt
356 residues, UniProt reviewed canonical sequence.
>Q68G74|LHX8
1 MQILSRCQGL MSEECGRTTA LAAGRTRKGA GEEGLVSPEG AGDEDSCSSS APLSPSSSPR
61 SMASGSGCPP GKCVCNSCGL EIVDKYLLKV NDLCWHVRCL SCSVCRTSLG RHTSCYIKDK
121 DIFCKLDYFR RYGTRCSRCG RHIHSTDWVR RAKGNVYHLA CFACFSCKRQ LSTGEEFALV
181 EEKVLCRVHY DCMLDNLKRE VENGNGISVE GALLTEQDVN HPKPAKRART SFTADQLQVM
241 QAQFAQDNNP DAQTLQKLAE RTGLSRRVIQ VWFQNCRARH KKHVSPNHSS STPVTAVPPS
301 RLSPPMLEEM AYSAYVPQDG TMLTALHSYM DAHSPTTLGL QPLLPHSMTQ LPISHTLocalizationUniProt · AlphaFold · HPA
Whether an antibody against LHX8 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)
- 0.51
- Highest tissue expression
- 1.9 nTPM
Expression across tissuesHPA
Tissue
- salivary gland: 1.9 nTPM
- tonsil: 1.4 nTPM
- placenta: 1 nTPM
- tongue: 1 nTPM
- basal ganglia: 0.9 nTPM
- ovary: 0.8 nTPM
Single-cell type
- oocytes: 557 nCPM
- other brain neurons: 29 nCPM
- early primary spermatocytes: 5.9 nCPM
- fibroblasts: 3.2 nCPM
- undifferentiated spermatogonia: 3 nCPM
- ependymal cells: 2.8 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
- cerebral cortex: 18 nTPM
- hypothalamus: 12 nTPM
- basal ganglia: 2.6 nTPM
- thalamus: 0.9 nTPM
- amygdala: 0.7 nTPM
- medulla oblongata: 0.2 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 LOEUF (loss-of-function intolerance)
- 0.47
- gnomAD pLI
- 0.52
- gnomAD missense Z
- 1.61
- DepMap mean gene effect
- 0.17
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- forebrain neuron development
- neuron differentiation
- regulation of transcription by RNA polymerase II
- response to ethanol
Molecular functions
- DNA-binding transcription factor activity, RNA polymerase II-specific
- metal ion binding
- RNA polymerase II transcription regulatory region sequence-specific DNA binding
- sequence-specific double-stranded DNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of LHX8 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 LHX8 as an antibody target. Whether an autoantibody or antibody against LHX8 could matter depends on whether native LHX8 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
LHX8 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 LHX8 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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