RBMXL2
RNA-binding motif protein, X-linked-like-2
Also known as: HNRNPG-T, HNRPGT, RMXL2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O75526
- Gene
- RBMXL2
- Ensembl
- ENSG00000170748
- Chromosome
- 11
- Canonical length
- 392 aa
- Protein class
- Predicted intracellular proteins
OverviewNCBI Gene
This gene belongs to the HNRPG subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has two RRM domains that bind RNAs. This gene is intronless and is thought to be derived from a processed retroposon. However, unlike many retroposon-derived genes, this gene is not a pseudogene. The encoded protein has similarity to HNRPG and RBMY proteins and it is suggested to replace HNRPG protein function during meiotic prophase or act as a germ cell-specific splicing regulator. It primarily localizes to the nuclei of meiotic spermatocytes. This gene is a candidate for autosomal male infertility. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
392 residues, UniProt reviewed canonical sequence.
>O75526|RBMXL2
1 MVEADRPGKL FIGGLNLETD EKALEAEFGK YGRIVEVLLM KDRETNKSRG FAFVTFESPA
61 DAKAAARDMN GKSLDGKAIK VAQATKPAFE SSRRGPPPPR SRGRPRFLRG TRGGGGGPRR
121 SPSRGGPDDD GGYTADFDLR PSRAPMPMKR GPPPRRVGPP PKRAAPSGPA RSSGGGMRGR
181 ALAVRGRDGY SGPPRREPLP PRRDPYLGPR DEGYSSRDGY SSRDYREPRG FAPSPGEYTH
241 RDYGHSSVRD DCPLRGYSDR DGYGGRDRDY GDHLSRGSHR EPFESYGELR GAAPGRGTPP
301 SYGGGGRYEE YRGYSPDAYS GGRDSYSSSY GRSDRYSRGR HRVGRPDRGL SLSMERGCPP
361 QRDSYSRSGC RVPRGGGRLG GRLERGGGRS RYLocalizationUniProt · AlphaFold · HPA
Whether an antibody against RBMXL2 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)
- 0.66
- Highest tissue expression
- 29 nTPM
Expression across tissuesHPA
Tissue
- testis: 29 nTPM
- liver: 0.1 nTPM
- retina: 0.1 nTPM
- spinal cord: 0.1 nTPM
- adipose tissue: 0 nTPM
- adrenal gland: 0 nTPM
Single-cell type
- late primary spermatocytes: 317 nCPM
- late spermatids: 247 nCPM
- early spermatids: 135 nCPM
- early primary spermatocytes: 111 nCPM
- differentiating spermatogonia: 15 nCPM
- undifferentiated spermatogonia: 8.6 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
- white matter: 0.6 nTPM
- spinal cord: 0.5 nTPM
- basal ganglia: 0.4 nTPM
- cerebral cortex: 0.4 nTPM
- medulla oblongata: 0.4 nTPM
- midbrain: 0.4 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)
- 0.73
- gnomAD pLI
- 0.07
- gnomAD missense Z
- 0.24
- DepMap mean gene effect
- 0.03
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- via spliceosome
- mRNA splicing
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads RBMXL2 as an antibody target. Whether an autoantibody or antibody against RBMXL2 could matter depends on whether native RBMXL2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
RBMXL2 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 RBMXL2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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