RBM26

gene
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Also known as PRO1777SE70-2FLJ20957ZC3H17ARRS2PPP1R132

Summary

RBM26 (RNA binding motif protein 26, HGNC:20327) is a protein-coding gene on chromosome 13q31.1, encoding RNA-binding protein 26 (Q5T8P6). May be involved in the turnover of nuclear polyadenylated (pA+) RNA.

Enables RNA binding activity. Predicted to be active in nucleus.

Source: NCBI Gene 64062 — RefSeq curated summary.

At a glance

  • GWAS associations: 9
  • Clinical variants (ClinVar): 127 total
  • Druggable target: yes
  • MANE Select transcript: NM_001366735

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:20327
Approved symbolRBM26
NameRNA binding motif protein 26
Location13q31.1
Locus typegene with protein product
StatusApproved
AliasesPRO1777, SE70-2, FLJ20957, ZC3H17, ARRS2, PPP1R132
Ensembl geneENSG00000139746
Ensembl biotypeprotein_coding
OMIM620081
Entrez64062

Gene structure

Transcript identifiers

Ensembl transcripts: 28 — 26 protein_coding, 1 protein_coding_CDS_not_defined, 1 retained_intron

ENST00000267229, ENST00000438724, ENST00000438737, ENST00000449987, ENST00000461008, ENST00000472143, ENST00000622611, ENST00000862496, ENST00000862497, ENST00000862498, ENST00000862499, ENST00000862500, ENST00000862501, ENST00000862502, ENST00000862503, ENST00000862504, ENST00000862505, ENST00000862506, ENST00000862507, ENST00000862508, ENST00000862509, ENST00000862510, ENST00000862511, ENST00000915847, ENST00000915848, ENST00000915849, ENST00000969727, ENST00000969728

RefSeq mRNA: 4 — MANE Select: NM_001366735 NM_001286631, NM_001286632, NM_001366735, NM_022118

CCDS: CCDS66566, CCDS73591, CCDS91822, CCDS9462

Canonical transcript exons

ENST00000438737 — 22 exons

ExonStartEnd
ENSE000012310097935315379353224
ENSE000013367377935443979354570
ENSE000016016167936557879365718
ENSE000016351567931886879320710
ENSE000016391167936605579366195
ENSE000016671977940570479406255
ENSE000016722497937094579371162
ENSE000017665077937737979377515
ENSE000017897887936873079368990
ENSE000018041087937184279371930
ENSE000034621087935522079355384
ENSE000034703097933710279337302
ENSE000034746577935957579359686
ENSE000034934877932234979322462
ENSE000035193827934424879344322
ENSE000035499707935827479358433
ENSE000035705587937878979378907
ENSE000035774457933434479334430
ENSE000035862327934266479342831
ENSE000036163217934112379341227
ENSE000036608907936663379366872
ENSE000036782617934466979344794

Expression profiles

Bgee: expression breadth ubiquitous, 294 present calls, max score 96.56.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 18.7145 / max 516.7301, expressed in 1789 samples.

FANTOM5 promoters (4 alternative TSS)

Promoter IDTPM avgSamples expressed
13772515.16541781
1377231.7573926
1377221.2382614
1377240.5536288

Top tissues by expression

294 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
pylorusUBERON:000116696.56gold quality
pigmented layer of retinaUBERON:000178296.54gold quality
retinaUBERON:000096696.51gold quality
cardia of stomachUBERON:000116296.47gold quality
blood vessel layerUBERON:000479796.11gold quality
tibiaUBERON:000097996.10gold quality
choroid plexus epitheliumUBERON:000391196.10gold quality
penisUBERON:000098995.95gold quality
cerebellar vermisUBERON:000472095.84gold quality
epithelium of nasopharynxUBERON:000195195.56gold quality
nasopharynxUBERON:000172895.54gold quality
visceral pleuraUBERON:000240195.52gold quality
urethraUBERON:000005795.37gold quality
superior surface of tongueUBERON:000737195.29gold quality
oocyteCL:000002395.08gold quality
mucosa of sigmoid colonUBERON:000499394.97gold quality
pericardiumUBERON:000240794.94gold quality
secondary oocyteCL:000065594.89gold quality
postcentral gyrusUBERON:000258194.81gold quality
parietal pleuraUBERON:000240094.80gold quality
trigeminal ganglionUBERON:000167594.72gold quality
renal medullaUBERON:000036294.68gold quality
ventricular zoneUBERON:000305394.62gold quality
buccal mucosa cellCL:000233694.48gold quality
parietal lobeUBERON:000187294.46gold quality
pleuraUBERON:000097794.39gold quality
trabecular bone tissueUBERON:000248394.39gold quality
inferior vagus X ganglionUBERON:000536394.29gold quality
cartilage tissueUBERON:000241894.08gold quality
adrenal tissueUBERON:001830394.05gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes8.85

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

103 targeting RBM26, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-4795-3P100.0074.624024
HSA-MIR-1277-5P100.0073.955056
HSA-MIR-200B-3P100.0073.312693
HSA-MIR-200C-3P100.0073.352685
HSA-MIR-429100.0073.442698
HSA-MIR-126-5P100.0072.713180
HSA-LET-7A-3P100.0074.033932
HSA-LET-7B-3P100.0074.083913
HSA-LET-7F-1-3P100.0074.023928
HSA-MIR-98-3P100.0074.083907
HSA-MIR-5011-5P100.0083.465820
HSA-MIR-8485100.0077.574731
HSA-MIR-4262100.0073.263931
HSA-MIR-520D-5P99.9873.344883
HSA-MIR-524-5P99.9873.434882
HSA-MIR-477599.9875.006394
HSA-MIR-548N99.9871.944170
HSA-MIR-570-3P99.9672.414910
HSA-MIR-4725-3P99.9669.532520
HSA-MIR-6780B-5P99.9669.602562
HSA-MIR-590-3P99.9674.346478
HSA-MIR-365899.9673.874379
HSA-MIR-493-5P99.9672.472382
HSA-MIR-381-3P99.9371.872854
HSA-MIR-30099.9271.762856
HSA-MIR-6768-5P99.9267.361942
HSA-MIR-311999.9271.342390
HSA-MIR-806399.9169.763146
HSA-MIR-627-3P99.9071.423316
HSA-MIR-374A-5P99.9071.342923

Literature-anchored findings (GeneRIF, showing 1)

  • three additional proteins required for Poly(A) Tail eXosome Targeting (PAXT) function: ZC3H3, RBM26 and RBM27 along with the known PAXT-associated protein, PABPN1, were identified. (PMID:31950173)

Cross-species orthologs

5 orthologs

OrganismSymbolGene ID
danio_reriorbm26ENSDARG00000104130
mus_musculusRbm26ENSMUSG00000022119
rattus_norvegicusRbm26ENSRNOG00000009836
drosophila_melanogasterswmFBGN0002044
caenorhabditis_elegansWBGENE00015143

Paralogs (1): RBM27 (ENSG00000091009)

Protein

Protein identifiers

RNA-binding protein 26Q5T8P6 (reviewed: Q5T8P6)

Alternative names: CTCL tumor antigen se70-2, RNA-binding motif protein 26

All UniProt accessions (3): Q5T8P6, A0A087X0H9, E2PSN0

UniProt curated annotations — full annotation on UniProt →

Function. May be involved in the turnover of nuclear polyadenylated (pA+) RNA.

Isoforms (6)

UniProt IDNamesCanonical?
Q5T8P6-11yes
Q5T8P6-22
Q5T8P6-33
Q5T8P6-44
Q5T8P6-55
Q5T8P6-66

RefSeq proteins (4): NP_001273560, NP_001273561, NP_001353664, NP_071401 (=MANE)

Domains & families (InterPro)

IDNameType
IPR000504RRM_domDomain
IPR000571Znf_CCCHDomain
IPR002483PWI_domDomain
IPR012677Nucleotide-bd_a/b_plait_sfHomologous_superfamily
IPR034859RBM26_RRM1Domain
IPR035979RBD_domain_sfHomologous_superfamily
IPR039511RBM26-like_RRM2Domain
IPR045137RBM26/27Family

Pfam: PF01480

UniProt features (41 total): compositionally biased region 10, sequence conflict 6, modified residue 5, splice variant 5, region of interest 5, cross-link 3, domain 2, coiled-coil region 2, chain 1, zinc finger region 1, sequence variant 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q5T8P6-F158.090.13

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Post-translational modifications (8): 127, 496, 510, 518, 616, 94, 106, 106

Function

Pathways and Gene Ontology

Reactome pathways

1 pathways

IDPathway
R-HSA-9930044Nuclear RNA decay

MSigDB gene sets: 158 (showing top): GSE18804_SPLEEN_MACROPHAGE_VS_TUMORAL_MACROPHAGE_UP, RNGTGGGC_UNKNOWN, AAGCAAT_MIR137, ACTACCT_MIR196A_MIR196B, GCANCTGNY_MYOD_Q6, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_DN, KENNY_CTNNB1_TARGETS_UP, GOBP_MACROMOLECULE_CATABOLIC_PROCESS, GGCNKCCATNK_UNKNOWN, WANG_LMO4_TARGETS_DN, YY1_02, ATTACAT_MIR3803P, AAAGACA_MIR511, ATTCTTT_MIR186, MYOD_Q6

GO Biological Process (0):

GO Molecular Function (5): RNA binding (GO:0003723), zinc ion binding (GO:0008270), nucleic acid binding (GO:0003676), protein binding (GO:0005515), metal ion binding (GO:0046872)

GO Cellular Component (2): nucleus (GO:0005634), nucleoplasm (GO:0005654)

Reactome top-level categories

Rollup of top-1 pathways:

CategoryPathways
Metabolism of RNA1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
binding2
nucleic acid binding1
transition metal ion binding1
cation binding1
intracellular membrane-bounded organelle1
nuclear lumen1
cellular anatomical structure1

Protein interactions and networks

STRING

1252 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
RBM26ZFC3H1O60293667
RBM26ZC3H3Q8IXZ2581
RBM26PCED1AQ9H1Q7538
RBM26MTREXP42285523
RBM26RBM7Q9Y580513
RBM26ZCCHC8Q6NZY4513
RBM26PABPN1Q86U42459
RBM26VPS50Q96JG6450
RBM26KBTBD4Q9NVX7449
RBM26RBM22Q9NW64440
RBM26NOC3LQ8WTT2426
RBM26ZC3HAV1LQ96H79404
RBM26SRRTQ9BXP5383
RBM26GDPD4Q6W3E5382
RBM26TOE1Q96GM8382

IntAct

104 interactions, top by confidence:

ABTypeScore
IKBKGIKBKBpsi-mi:“MI:0914”(association)0.980
FOXK2DVL2psi-mi:“MI:0914”(association)0.640
CHCHD10CLPXpsi-mi:“MI:0914”(association)0.640
NEUROG3GXYLT2psi-mi:“MI:0914”(association)0.640
NCK2RBM26psi-mi:“MI:0915”(physical association)0.560
RBM26NCK2psi-mi:“MI:0915”(physical association)0.560
NCBP3SAP18psi-mi:“MI:0914”(association)0.530
TNFRSF13BTNFRSF10Bpsi-mi:“MI:0914”(association)0.530
SRPK2RRP9psi-mi:“MI:0914”(association)0.530
CPSF6DDX39Apsi-mi:“MI:0914”(association)0.480
RBM26PPP1CApsi-mi:“MI:0407”(direct interaction)0.440
RBM26Dlg4psi-mi:“MI:0407”(direct interaction)0.440
ANKRD26RBM26psi-mi:“MI:0915”(physical association)0.400
JUNBRBM26psi-mi:“MI:0915”(physical association)0.400
RBM26FXR1psi-mi:“MI:0915”(physical association)0.370
CDKN2ARBM26psi-mi:“MI:0915”(physical association)0.370
RBM26ATXN1psi-mi:“MI:0915”(physical association)0.370
CEP170P1PCYT1Apsi-mi:“MI:0914”(association)0.350
FZD1ATP5F1Bpsi-mi:“MI:0914”(association)0.350
SETD1BWBP4psi-mi:“MI:0914”(association)0.350
Rtf2UBE2V2psi-mi:“MI:0914”(association)0.350
Pip4p2ATP6V1B2psi-mi:“MI:0914”(association)0.350
Chmp2aMEN1psi-mi:“MI:0914”(association)0.350
VPS26ALCMT2psi-mi:“MI:0914”(association)0.350
Xpo1IFT56psi-mi:“MI:0914”(association)0.350
ESR1ESYT2psi-mi:“MI:0914”(association)0.350
KBTBD7POLRMTpsi-mi:“MI:0914”(association)0.350

BioGRID (175): RBM26 (Two-hybrid), RBM26 (Affinity Capture-MS), RBM26 (Affinity Capture-MS), RBM26 (Affinity Capture-MS), RBM26 (Affinity Capture-MS), RBM26 (Affinity Capture-MS), RBM26 (Co-fractionation), RBM26 (Co-fractionation), RBM26 (Affinity Capture-MS), RBM26 (Proximity Label-MS), RBM26 (Affinity Capture-MS), RBM26 (Affinity Capture-MS), RBM26 (Affinity Capture-MS), RBM26 (Affinity Capture-MS), RBM26 (Affinity Capture-MS)

ESM2 similar proteins: A0A8M2, A0JMU8, A1L1K8, A5D7H5, B9DFV2, E1BUG7, F4JP52, G1SW77, G3X9Z4, O08719, O15234, O94913, Q0V898, Q1LVV0, Q2T9I5, Q32NW2, Q3MHF8, Q498K9, Q566L7, Q5CZI8, Q5JVS0, Q5R4R4, Q5T8P6, Q5TYQ8, Q659C4, Q68FI1, Q6AXS5, Q6NVR8, Q6NZN0, Q6PKG0, Q8AVJ2, Q8CGC4, Q8K2F8, Q8K3W3, Q8K3X0, Q8NC51, Q8ND56, Q91W18, Q91W39, Q96D71

Diamond homologs: Q2T9I5, Q5SFM8, Q5T8P6, Q6NZN0, Q9P2N5, Q9USP9, Q0JDM0, Q9LVX1, Q9VIV2

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 145 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
mRNA 3’-end processing713.2×2e-04
mRNA Polyadenylation119.3×2e-05
mRNA Splicing88.4×5e-04
Processing of Capped Intron-Containing Pre-mRNA97.1×5e-04
mRNA Splicing - Major Pathway136.8×2e-05
Dengue Virus-Host Interactions125.3×5e-04
Metabolism of RNA124.8×7e-04

GO biological processes:

GO termPartnersFoldFDR
ribosomal small subunit biogenesis610.3×4e-03
mRNA splicing, via spliceosome106.9×6e-04
RNA splicing106.7×6e-04
mRNA processing116.6×5e-04

Disease & clinical

Clinical variants and AI predictions

ClinVar

127 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance89
Likely benign4
Benign2

Top pathogenic / likely-pathogenic (0)

SpliceAI

4105 predictions. Top by Δscore:

VariantEffectΔscore
13:79322344:CATA:Cdonor_gain1.0000
13:79322345:ATACT:Adonor_loss1.0000
13:79322346:TACT:Tdonor_loss1.0000
13:79322347:A:ACdonor_gain1.0000
13:79322347:ACTT:Adonor_gain1.0000
13:79322347:ACTTC:Adonor_loss1.0000
13:79322348:C:CCdonor_gain1.0000
13:79322348:CT:Cdonor_gain1.0000
13:79322348:CTT:Cdonor_gain1.0000
13:79322348:CTTC:Cdonor_gain1.0000
13:79322348:CTTCT:Cdonor_gain1.0000
13:79322350:T:TAdonor_gain1.0000
13:79322458:GCAGC:Gacceptor_gain1.0000
13:79322459:CAGCC:Cacceptor_gain1.0000
13:79322460:AGCC:Aacceptor_gain1.0000
13:79322461:GC:Gacceptor_gain1.0000
13:79322461:GCCTA:Gacceptor_gain1.0000
13:79322462:CC:Cacceptor_gain1.0000
13:79322462:CCTA:Cacceptor_gain1.0000
13:79322463:C:Tacceptor_gain1.0000
13:79322463:CT:Cacceptor_gain1.0000
13:79322468:A:ACacceptor_gain1.0000
13:79322468:A:Cacceptor_gain1.0000
13:79322471:A:Cacceptor_gain1.0000
13:79322472:T:Cacceptor_gain1.0000
13:79322472:T:TCacceptor_gain1.0000
13:79337013:ATGT:Adonor_gain1.0000
13:79337124:T:TAdonor_gain1.0000
13:79337136:T:Adonor_gain1.0000
13:79337299:CAGC:Cacceptor_gain1.0000

AlphaMissense

6592 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
13:79320630:C:AW1005C1.000
13:79320630:C:GW1005C1.000
13:79320632:A:GW1005R1.000
13:79320632:A:TW1005R1.000
13:79322412:C:AW957C1.000
13:79322412:C:GW957C1.000
13:79322414:A:GW957R1.000
13:79322414:A:TW957R1.000
13:79322449:C:TG945E1.000
13:79322461:G:TA941D1.000
13:79334351:G:TA938D1.000
13:79334352:C:GA938P1.000
13:79337106:A:GF910S1.000
13:79337302:C:GA845P1.000
13:79341199:A:GL819P1.000
13:79355265:C:AW603C1.000
13:79355265:C:GW603C1.000
13:79355267:A:GW603R1.000
13:79355267:A:TW603R1.000
13:79355272:A:TV601D1.000
13:79355278:A:CI599S1.000
13:79355278:A:TI599N1.000
13:79355280:A:CF598L1.000
13:79355280:A:TF598L1.000
13:79355281:A:CF598C1.000
13:79355281:A:GF598S1.000
13:79355282:A:CF598V1.000
13:79355282:A:GF598L1.000
13:79355282:A:TF598I1.000
13:79355284:C:AR597L1.000

dbSNP variants (sampled 300 via entrez): RS1000013073 (13:79407750 C>T), RS1000017803 (13:79386183 C>T), RS1000024243 (13:79347565 A>G), RS1000110420 (13:79337144 T>C,G), RS1000113467 (13:79380825 T>A,C), RS1000123372 (13:79381059 T>A), RS1000141816 (13:79323734 A>G,T), RS1000171756 (13:79330620 G>A), RS1000183001 (13:79335652 A>C), RS1000213099 (13:79329928 G>A,C), RS1000230041 (13:79372633 A>G), RS1000276280 (13:79359863 T>C), RS1000290106 (13:79367827 A>G), RS1000353505 (13:79379669 T>A,C), RS1000448354 (13:79375756 T>C)

Disease associations

OMIM: gene MIM:620081 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

9 associations (top):

StudyTraitp-value
GCST000748_2Response to anti-TNF alpha therapy in inflammatory bowel disease5.000000e-07
GCST002928_6Nickel levels5.000000e-06
GCST004495_95BMI (adjusted for smoking behaviour)9.000000e-06
GCST004497_37Body mass index (joint analysis main effects and smoking interaction)3.000000e-06
GCST006624_88Systolic blood pressure3.000000e-09
GCST008162_101Hip circumference6.000000e-06
GCST009391_1070Metabolite levels6.000000e-06
GCST010988_472Adult body size2.000000e-15
GCST010989_60Body size at age 104.000000e-16

EFO canonical traits (6, from GWAS)

EFO IDTrait name
EFO:0004653response to TNF antagonist
EFO:0004318smoking behavior
EFO:0004340body mass index
EFO:0006335systolic blood pressure
EFO:0010364lysophosphatidylcholine 20:5 measurement
EFO:0009819comparative body size at age 10, self-reported

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (1): CHEMBL6067233 (SINGLE PROTEIN)

PharmGKB: 1 entry (VIP=true, CPIC=false)

ChEMBL bioactivities

2 potent at pChembl≥5 of 2 total, top 2 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).

pChemblTypeValueUnitMolecule
6.04Kd921.6nMCHEMBL5653589
6.04ED50921.6nMCHEMBL5653589

PubChem BioAssay actives

1 with measured affinity, of 2 total; 1 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.

CompoundAssayTypeValueUnit
4-methyl-3-[(2-methyl-6-pyridin-3-ylpyrazolo[3,4-d]pyrimidin-4-yl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide2149206: Binding affinity to human RBM26 incubated for 45 mins by Kinobead based pull down assaykd0.9216uM

CTD chemical–gene interactions

42 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects cotreatment, decreases expression, decreases methylation6
sodium arsenitedecreases expression, increases abundance, increases expression, increases activity, affects binding (+1 more)4
trichostatin Aaffects cotreatment, decreases expression3
Acetaminophendecreases expression2
Cadmium Chloridedecreases expression, increases abundance, increases expression2
aristolochic acid Idecreases expression1
FR900359increases phosphorylation1
TAK-243decreases sumoylation1
geldanamycinincreases expression1
methylmercuric chloridedecreases expression1
triphenyl phosphateaffects expression1
bisphenol Adecreases expression1
aflatoxin B2decreases methylation1
coumarinincreases phosphorylation1
di-n-butylphosphoric acidaffects expression1
perfluorooctane sulfonic aciddecreases expression1
pentabromodiphenyl etherincreases expression1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, decreases expression1
clothianidindecreases expression1
dorsomorphinaffects cotreatment, decreases expression1
jinfukangdecreases expression1
Temozolomidedecreases expression1
Vorinostatdecreases expression1
Arsenicincreases abundance, increases expression1
Benzo(a)pyreneaffects methylation1
Cadmiumincreases abundance, increases expression1
Caffeinedecreases phosphorylation1
Cisplatindecreases expression1
Dinitrochlorobenzeneaffects binding1
Doxorubicindecreases expression1

ChEMBL screening assays

1 unique, capped per target: 1 binding

Representative assays (with source publication via chembl_document):

Assay IDTypeDescriptionSource paper
CHEMBL5652248BindingBinding affinity to human RBM26 incubated for 45 mins by Kinobead based pull down assayNVP-BHG712: Effects of Regioisomers on the Affinity and Selectivity toward the EPHrin Family. — ChemMedChem

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.