SRRM4

gene
On this page

Also known as nSR100

Summary

SRRM4 (serine/arginine repetitive matrix 4, HGNC:29389) is a protein-coding gene on chromosome 12q24.23, encoding Serine/arginine repetitive matrix protein 4 (A7MD48). Splicing factor specifically required for neural cell differentiation.

SRRM4 promotes alternative splicing and inclusion of neural-specific exons in target mRNAs (Calarco et al., 2009 [PubMed 19737518]).

Source: NCBI Gene 84530 — RefSeq curated summary.

At a glance

  • GWAS associations: 9
  • Clinical variants (ClinVar): 102 total
  • MANE Select transcript: NM_194286

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:29389
Approved symbolSRRM4
Nameserine/arginine repetitive matrix 4
Location12q24.23
Locus typegene with protein product
StatusApproved
AliasesnSR100
Ensembl geneENSG00000139767
Ensembl biotypeprotein_coding
OMIM613103
Entrez84530

Gene structure

Transcript identifiers

Ensembl transcripts: 8 — 5 protein_coding_CDS_not_defined, 2 protein_coding, 1 nonsense_mediated_decay

ENST00000267260, ENST00000534886, ENST00000537597, ENST00000545224, ENST00000641899, ENST00000641910, ENST00000651431, ENST00000902270

RefSeq mRNA: 1 — MANE Select: NM_194286 NM_194286

CCDS: CCDS44994

Canonical transcript exons

ENST00000267260 — 13 exons

ExonStartEnd
ENSE00000940093119102236119102382
ENSE00000940098119145381119145685
ENSE00000940099119151017119151220
ENSE00000940100119153539119153649
ENSE00000940101119154243119154383
ENSE00001111306118981541118982013
ENSE00001250091119156495119163051
ENSE00003467392119116937119117008
ENSE00003568418119125381119125479
ENSE00003579685119122070119122120
ENSE00003617666119120250119120276
ENSE00003617723119130678119130834
ENSE00003629750119114278119114364

Expression profiles

Bgee: expression breadth ubiquitous, 184 present calls, max score 94.25.

FANTOM5 (CAGE): breadth broad, TPM avg 5.9661 / max 721.1407, expressed in 264 samples.

FANTOM5 promoters (7 alternative TSS)

Promoter IDTPM avgSamples expressed
1282804.3585239
1282790.8160163
1282810.312593
1282780.194985
2069210.187473
1282770.081239
1282860.01574

Top tissues by expression

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

TissueAnatomy IDExpression scoreQuality
cerebellar vermisUBERON:000472094.25gold quality
cortical plateUBERON:000534393.69gold quality
cerebellar cortexUBERON:000212993.32gold quality
cerebellar hemisphereUBERON:000224593.29gold quality
cerebellumUBERON:000203793.21gold quality
right hemisphere of cerebellumUBERON:001489093.14gold quality
ganglionic eminenceUBERON:000402390.34gold quality
middle temporal gyrusUBERON:000277189.78gold quality
Brodmann (1909) area 23UBERON:001355488.70gold quality
primary visual cortexUBERON:000243688.62gold quality
occipital lobeUBERON:000202187.31gold quality
superior frontal gyrusUBERON:000266186.77gold quality
postcentral gyrusUBERON:000258185.59gold quality
parietal lobeUBERON:000187285.53gold quality
right frontal lobeUBERON:000281084.87gold quality
frontal cortexUBERON:000187084.62gold quality
frontal lobeUBERON:001652584.62gold quality
entorhinal cortexUBERON:000272884.44gold quality
Brodmann (1909) area 9UBERON:001354084.31gold quality
neocortexUBERON:000195084.17gold quality
prefrontal cortexUBERON:000045183.73gold quality
dorsolateral prefrontal cortexUBERON:000983483.72gold quality
left ventricle myocardiumUBERON:000656682.93gold quality
cardiac muscle of right atriumUBERON:000337982.84gold quality
cerebral cortexUBERON:000095682.56gold quality
anterior cingulate cortexUBERON:000983581.87gold quality
lateral nuclear group of thalamusUBERON:000273681.16gold quality
Brodmann (1909) area 46UBERON:000648380.86gold quality
brainUBERON:000095578.38gold quality
temporal lobeUBERON:000187177.39gold quality

Single-cell (SCXA)

Detected in 9 experiment(s), a significant marker in 8.

ExperimentMarker?Max mean expression
E-GEOD-137537yes2390.87
E-HCAD-35yes63.65
E-HCAD-25yes42.63
E-GEOD-93593yes12.09
E-MTAB-9067yes11.57
E-HCAD-5yes7.72
E-GEOD-84465yes6.63
E-ANND-3yes5.68
E-GEOD-83139no2.89

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

255 targeting SRRM4, 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-8485100.0077.574731
HSA-MIR-5692A100.0074.406850
HSA-MIR-4673100.0066.641490
HSA-MIR-4533100.0069.482758
HSA-MIR-4747-5P100.0067.902681
HSA-MIR-126-5P100.0072.713180
HSA-MIR-5196-5P100.0067.982761
HSA-MIR-3064-3P100.0070.091254
HSA-MIR-6870-5P99.9968.552115
HSA-MIR-548AW99.9972.573559
HSA-MIR-4645-5P99.9865.811284
HSA-MIR-23B-5P99.9866.07587
HSA-MIR-4723-5P99.9768.702034
HSA-MIR-569899.9768.492029
HSA-MIR-7111-5P99.9768.482062
HSA-MIR-6825-5P99.9669.813431
HSA-MIR-6778-3P99.9667.292693
HSA-MIR-1468-3P99.9672.743797
HSA-LET-7C-3P99.9573.422862
HSA-MIR-6721-5P99.9368.922981
HSA-MIR-539-5P99.9370.302855
HSA-MIR-10523-5P99.9169.222038
HSA-MIR-367199.9073.043897
HSA-MIR-627-3P99.9071.423316
HSA-MIR-95-5P99.8972.173973
HSA-MIR-6783-3P99.8967.922059
HSA-MIR-1343-3P99.8966.781815
HSA-MIR-990299.8969.152250
HSA-MIR-4731-5P99.8967.232537
HSA-MIR-6780A-5P99.8866.692776

Literature-anchored findings (GeneRIF, showing 13)

  • findings show that nSR100 plays a role in the alternative splicing of REST in small cell lung cancer (SCLC); study provides new insight into the role of nSR100 in the expression of sREST, possibly in the pathogenesis of SCLC (PMID:23928058)
  • Neural microexons are regulated by the neuronal-specific splicing factor nSR100/SRRM4, through its binding to adjacent intronic enhancer motifs; neural microexons are frequently misregulated in the brains of individuals with autism spectrum disorder, and this misregulation is associated with reduced levels of nSR100. (PMID:25525873)
  • The splicing of REST by SRRM4 could promote the neuroendocrine phenotype in CRPC. (PMID:26071481)
  • SRRM4 regulates alternative splicing programs to drive neuroendocrine prostate cancer progression (an aggressive subtype of castration-resistant prostate cancer) under androgen receptor pathway inhibition. (PMID:27180064)
  • Neuronal activity-dependent microexons are nSR100 targets and are misregulated in autism. (PMID:27984743)
  • data indicate that SRRM4 regulates alternative RNA splicing of the Bif-1 gene that enables PCa cells resistant to apoptotic stimuli under anti-cancer therapies, and may contribute to AdPC progression into t-NEPC. (PMID:29759485)
  • a novel mechanism by which SRRM4 drives neuroendocrine prostate cancer progression via a pluripotency gene network, is reported. (PMID:30100395)
  • SRRM4 expression in castrate-resistant pancreatic cancer is highly correlated with neuroendocrine prostate cancer and poor survival. (PMID:30155992)
  • RNA Splicing of the BHC80 Gene Contributes to Neuroendocrine Prostate Cancer Progression. (PMID:30910347)
  • A gapmer antisense oligonucleotide targeting SRRM4 is a novel therapeutic medicine for lung cancer. (PMID:31110284)
  • Alternative splicing of LSD1+8a in neuroendocrine prostate cancer is mediated by SRRM4. (PMID:32403054)
  • SRRM4 Expands the Repertoire of Circular RNAs by Regulating Microexon Inclusion. (PMID:33207694)
  • RNA Splicing Factors SRRM3 and SRRM4 Distinguish Molecular Phenotypes of Castration-Resistant Neuroendocrine Prostate Cancer. (PMID:34312180)

Cross-species orthologs

2 orthologs

OrganismSymbolGene ID
mus_musculusSrrm4ENSMUSG00000063919
rattus_norvegicusSrrm4ENSRNOG00000001141

Protein

Protein identifiers

Serine/arginine repetitive matrix protein 4A7MD48 (reviewed: A7MD48)

Alternative names: Medulloblastoma antigen MU-MB-2.76, Neural-specific serine/arginine repetitive splicing factor of 100 kDa

All UniProt accessions (3): A7MD48, A0A286YF08, V5T9A0

UniProt curated annotations — full annotation on UniProt →

Function. Splicing factor specifically required for neural cell differentiation. Acts in conjunction with nPTB/PTBP2 by binding directly to its regulated target transcripts and promotes neural-specific exon inclusion in many genes that function in neural cell differentiation. Required to promote the inclusion of neural-specific exon 10 in nPTB/PTBP2, leading to increased expression of neural-specific nPTB/PTBP2. Also promotes the inclusion of exon 16 in DAAM1 in neuron extracts. Promotes alternative splicing of REST transcripts to produce REST isoform 3 (REST4) with greatly reduced repressive activity, thereby activating expression of REST targets in neural cells. Plays an important role during embryonic development as well as in the proper functioning of the adult nervous system. Regulates alternative splicing events in genes with important neuronal functions.

Subcellular location. Nucleus.

Tissue specificity. Specifically expressed in neuronal cells (at protein level). Expressed in the cerebellum.

Post-translational modifications. Phosphorylated.

Similarity. Belongs to the nSR100 family.

RefSeq proteins (1): NP_919262* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR029360SRRM_CDomain
IPR052109SRRM_Domain-ContainingFamily

Pfam: PF15230

UniProt features (25 total): compositionally biased region 18, sequence variant 3, region of interest 2, chain 1, sequence conflict 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-A7MD48-F148.310.00

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 145 (showing top): GSE18804_BRAIN_VS_COLON_TUMORAL_MACROPHAGE_UP, ATF_B, RNGTGGGC_UNKNOWN, TAATAAT_MIR126, BENPORATH_ES_WITH_H3K27ME3, GOBP_SENSORY_PERCEPTION_OF_MECHANICAL_STIMULUS, GOBP_NEURON_MATURATION, GOBP_ALTERNATIVE_MRNA_SPLICING_VIA_SPLICEOSOME, GOBP_NEUROGENESIS, CACCAGC_MIR138, GGGTGGRR_PAX4_03, GOBP_ANATOMICAL_STRUCTURE_MATURATION, TCF4_Q5, ATF1_Q6, GOBP_CELL_MATURATION

GO Biological Process (8): regulation of alternative mRNA splicing, via spliceosome (GO:0000381), mRNA processing (GO:0006397), nervous system development (GO:0007399), sensory perception of sound (GO:0007605), RNA splicing (GO:0008380), cell differentiation (GO:0030154), neuron maturation (GO:0042551), regulation of RNA splicing (GO:0043484)

GO Molecular Function (4): mRNA binding (GO:0003729), identical protein binding (GO:0042802), RNA binding (GO:0003723), protein binding (GO:0005515)

GO Cellular Component (1): nucleus (GO:0005634)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
RNA processing2
alternative mRNA splicing, via spliceosome1
regulation of mRNA splicing, via spliceosome1
mRNA metabolic process1
system development1
sensory perception of mechanical stimulus1
cellular developmental process1
cell maturation1
neuron development1
RNA splicing1
regulation of gene expression1
regulation of primary metabolic process1
RNA binding1
protein binding1
nucleic acid binding1
binding1
intracellular membrane-bounded organelle1

Protein interactions and networks

STRING

1706 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
SRRM4PTBP2Q9UKA9926
SRRM4DAAM1Q9Y4D1899
SRRM4SRSF11Q05519786
SRRM4NOVA1P51513647
SRRM4NOVA2Q9UNW9636
SRRM4KHDRBS1Q07666635
SRRM4RNPS1Q15287632
SRRM4SRRM2Q9UQ35622
SRRM4PTBP1P26599597
SRRM4RBFOX1Q9NWB1593
SRRM4U2AF1Q01081577
SRRM4SFSWAPQ12872542
SRRM4RESTQ13127499
SRRM4MYO7AP78427497
SRRM4MBNL1Q9NR56481

IntAct

92 interactions, top by confidence:

ABTypeScore
ARL6IP4SRRM4psi-mi:“MI:0915”(physical association)0.560
SRRM4CDC37psi-mi:“MI:0915”(physical association)0.560
SRRM4RSRC1psi-mi:“MI:0915”(physical association)0.560
SRRM4RBMX2psi-mi:“MI:0915”(physical association)0.560
SRRM4ZNF699psi-mi:“MI:0915”(physical association)0.560
SRRM4ZRSR2psi-mi:“MI:0915”(physical association)0.560
SRRM4C16orf87psi-mi:“MI:0915”(physical association)0.560
SRRM4LUC7L2psi-mi:“MI:0915”(physical association)0.560
SRRM4U2AF1psi-mi:“MI:0915”(physical association)0.560
SRRM4SRRM4psi-mi:“MI:0915”(physical association)0.560
SRRM4CLK1psi-mi:“MI:0915”(physical association)0.560
SRRM4MMTAG2psi-mi:“MI:0915”(physical association)0.560
SRRM4RBM39psi-mi:“MI:0915”(physical association)0.560
SRRM4ZRSR2P1psi-mi:“MI:0915”(physical association)0.560
SRRM4ZNF286Apsi-mi:“MI:0915”(physical association)0.560
SRRM4SRSF11psi-mi:“MI:0915”(physical association)0.560
SRRM4SRRM1psi-mi:“MI:0915”(physical association)0.560
SRRM4RNPS1psi-mi:“MI:0915”(physical association)0.560
SRRM4WDR5psi-mi:“MI:0915”(physical association)0.560
SRRM4FAM9Bpsi-mi:“MI:0915”(physical association)0.560
SRRM4RBM25psi-mi:“MI:0915”(physical association)0.560
SRRM4CLK4psi-mi:“MI:0915”(physical association)0.560
SRRM4ZNF124psi-mi:“MI:0915”(physical association)0.560
SRRM4SNIP1psi-mi:“MI:0915”(physical association)0.560
SRRM4LUZP4psi-mi:“MI:0915”(physical association)0.560
SRRM4MCRS1psi-mi:“MI:0915”(physical association)0.560
SRRM4AKAP17Apsi-mi:“MI:0915”(physical association)0.560
SRRM4SNRNP70psi-mi:“MI:0915”(physical association)0.560

BioGRID (50): SRRM4 (Affinity Capture-MS), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), SRRM4 (Two-hybrid), C1orf35 (Two-hybrid), LUC7L2 (Two-hybrid), C16orf87 (Two-hybrid)

ESM2 similar proteins: A4D2P6, A6NNA2, A7MD48, A8IHN8, C9JLR9, G3V9M2, O00287, O95644, P04198, P12755, P18444, P49796, P49797, P51608, P55199, Q00566, Q08DA0, Q0PHV7, Q13387, Q1W6H9, Q29RS4, Q3UPL5, Q3YEC7, Q4QQU1, Q4VA45, Q5XKK7, Q61976, Q6NV74, Q6R891, Q7Z6J2, Q80WV7, Q80YR4, Q86UK7, Q8BKA3, Q8N554, Q8R149, Q8R4T5, Q8TF61, Q8VCG9, Q95LG8

Diamond homologs: A7MD48, P0CB65, Q80WV7, Q8BKA3, A6NNA2, Q5AP89, Q6C0M9, Q8BTI8, Q9U213, Q9UQ35

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 28 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 processing554.7×1e-06
Transport of Mature mRNA derived from an Intron-Containing Transcript542.3×2e-06
mRNA Splicing530.5×7e-06
Processing of Capped Intron-Containing Pre-mRNA627.4×1e-06
mRNA Splicing - Major Pathway927.3×8e-10
mRNA Polyadenylation524.4×2e-05
Metabolism of RNA613.9×3e-05

GO biological processes:

GO termPartnersFoldFDR
RNA splicing1035.3×6e-12
mRNA splicing, via spliceosome829.3×6e-09
mRNA processing618.9×1e-05

Disease & clinical

Clinical variants and AI predictions

ClinVar

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

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance93
Likely benign4
Benign0

Top pathogenic / likely-pathogenic (0)

SpliceAI

2268 predictions. Top by Δscore:

VariantEffectΔscore
12:118982010:CAAGG:Cdonor_loss1.0000
12:118982014:GTAAT:Gdonor_loss1.0000
12:119101505:G:GTdonor_gain1.0000
12:119101505:G:Tdonor_gain1.0000
12:119102231:TGTA:Tacceptor_loss1.0000
12:119102232:GTA:Gacceptor_loss1.0000
12:119102234:A:AGacceptor_gain1.0000
12:119102234:AG:Aacceptor_gain1.0000
12:119102235:G:Aacceptor_loss1.0000
12:119102235:G:GGacceptor_gain1.0000
12:119102235:GG:Gacceptor_gain1.0000
12:119102235:GGAC:Gacceptor_gain1.0000
12:119102235:GGACA:Gacceptor_gain1.0000
12:119114274:ACAGT:Aacceptor_gain1.0000
12:119114275:C:Gacceptor_gain1.0000
12:119114275:CAGT:Cacceptor_loss1.0000
12:119114276:A:AGacceptor_gain1.0000
12:119114276:A:Cacceptor_loss1.0000
12:119114276:AGT:Aacceptor_gain1.0000
12:119114277:G:GAacceptor_gain1.0000
12:119114277:GT:Gacceptor_gain1.0000
12:119114277:GTG:Gacceptor_gain1.0000
12:119114277:GTGC:Gacceptor_gain1.0000
12:119114277:GTGCC:Gacceptor_gain1.0000
12:119114361:GGAG:Gdonor_gain1.0000
12:119114362:G:GTdonor_gain1.0000
12:119114362:GAG:Gdonor_gain1.0000
12:119114363:AG:Adonor_loss1.0000
12:119114365:G:GGdonor_gain1.0000
12:119114366:T:Gdonor_loss1.0000

AlphaMissense

3952 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
12:118981926:T:CF15S1.000
12:119154377:T:CI509T1.000
12:118981925:T:CF15L0.999
12:118981926:T:GF15C0.999
12:118981927:C:AF15L0.999
12:118981927:C:GF15L0.999
12:118981928:T:AW16R0.999
12:118981928:T:CW16R0.999
12:118981940:T:CF20L0.999
12:118981942:C:AF20L0.999
12:118981942:C:GF20L0.999
12:118981970:A:CS30R0.999
12:118981972:C:AS30R0.999
12:118981972:C:GS30R0.999
12:118981977:T:AI32N0.999
12:118981977:T:GI32S0.999
12:119154337:C:AR496S0.999
12:119154355:A:CS502R0.999
12:119154357:C:AS502R0.999
12:119154357:C:GS502R0.999
12:119154374:G:CR508T0.999
12:119154374:G:TR508M0.999
12:119154375:G:CR508S0.999
12:119154375:G:TR508S0.999
12:119154377:T:AI509K0.999
12:119154377:T:GI509R0.999
12:119156503:A:TK514I0.999
12:119156504:A:CK514N0.999
12:119156504:A:TK514N0.999
12:119156505:C:AR515S0.999

dbSNP variants (sampled 300 via entrez): RS1000013536 (12:119140875 C>G), RS1000015427 (12:119100203 C>G,T), RS1000018901 (12:119060583 G>A), RS1000052422 (12:118983299 G>A,T), RS1000088306 (12:119100425 G>C,T), RS1000091327 (12:119089289 G>C), RS1000094051 (12:119146941 A>G), RS1000112693 (12:119128045 C>G,T), RS1000139094 (12:119026925 T>C), RS1000139478 (12:119107637 T>A), RS1000166741 (12:119002403 G>A), RS1000214129 (12:119008802 A>T), RS1000225825 (12:119044753 A>C,G), RS1000251454 (12:119032148 A>C), RS1000267998 (12:119054251 G>A)

Disease associations

OMIM: gene MIM:613103 | 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
GCST001762_100Obesity-related traits3.000000e-06
GCST003445_9Response to cyclophosphamide in systemic lupus erythematosus with lupus nephritis4.000000e-06
GCST003771_19Loneliness8.000000e-06
GCST003772_17Loneliness (linear analysis)5.000000e-06
GCST003992_47Photic sneeze reflex3.000000e-12
GCST004307_4Facial morphology (factor 3, length of philtrum)4.000000e-08
GCST004867_27Systemic lupus erythematosus5.000000e-06
GCST007002_6Cerebrospinal fluid t-tau levels in normal cognition2.000000e-09
GCST011176_23Stroke2.000000e-07

EFO canonical traits (4, from GWAS)

EFO IDTrait name
EFO:0003940physical activity
EFO:0007865loneliness measurement
EFO:0007887autosomal dominant compelling helio-ophthalmic outburst syndrome
EFO:0004760t-tau measurement

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

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

CTD chemical–gene interactions

17 total (human), top 17 by PubMed support.

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects cotreatment, increases expression, affects expression3
bisphenol Adecreases methylation, increases expression2
trichostatin Aaffects cotreatment, increases expression2
Resveratrolaffects cotreatment, decreases expression2
methylmercuric chlorideincreases expression1
sodium arseniteincreases expression1
entinostatdecreases expression1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, increases expression1
dorsomorphinaffects cotreatment, increases expression1
Sunitinibdecreases expression1
Vorinostatdecreases expression1
Acetaminophendecreases expression1
Atrazinedecreases expression1
Benzo(a)pyreneincreases methylation1
Copperaffects cotreatment, decreases expression1
Plant Extractsaffects cotreatment, decreases expression1
Tobacco Smoke Pollutiondecreases expression1

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.