Incidental Mutation 'D3080:Smyd3'
ID 112
Institutional Source Beutler Lab
Gene Symbol Smyd3
Ensembl Gene ENSMUSG00000055067
Gene Name SET and MYND domain containing 3
Synonyms 2410008A19Rik, Zmynd1
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # D3080 of strain grasshopper
Quality Score
Status Validated
Chromosome 1
Chromosomal Location 178779525-179345606 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 178913987 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tyrosine to Histidine at position 239 (Y239H)
Ref Sequence ENSEMBL: ENSMUSP00000117410 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000128302]
AlphaFold Q9CWR2
Predicted Effect noncoding transcript
Transcript: ENSMUST00000068437
Predicted Effect probably damaging
Transcript: ENSMUST00000128302
AA Change: Y239H

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000117410
Gene: ENSMUSG00000055067
AA Change: Y239H

DomainStartEndE-ValueType
SET 4 246 1.04e-11 SMART
low complexity region 410 420 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000131684
Meta Mutation Damage Score 0.8145 question?
Coding Region Coverage
  • 1x: 88.9%
  • 3x: 76.7%
Validation Efficiency 82% (141/173)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a histone methyltransferase which functions in RNA polymerase II complexes by an interaction with a specific RNA helicase. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]
PHENOTYPE: No abnormal phenotype was observed in a high-throughput screen, nor in a pathology assessment. [provided by MGI curators]
Allele List at MGI

All alleles(34) : Targeted, other(5) Gene trapped(29)

Other mutations in this stock
Total: 20 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2310003L06Rik C A 5: 88,119,846 (GRCm39) P201Q possibly damaging Het
Bdp1 A T 13: 100,160,129 (GRCm39) S2417R probably benign Het
Ccdc168 C A 1: 44,106,495 (GRCm39) Het
Dscaml1 A T 9: 45,595,623 (GRCm39) H783L probably benign Het
Fbxl5 A T 5: 43,915,708 (GRCm39) M568K probably benign Het
Gab1 T A 8: 81,493,007 (GRCm39) D710V probably damaging Homo
Gabrr2 T C 4: 33,084,466 (GRCm39) F128S probably damaging Het
Hyou1 T A 9: 44,295,774 (GRCm39) V343E probably damaging Het
Nlrp4a A G 7: 26,143,766 (GRCm39) T44A probably benign Het
Nsd3 C A 8: 26,203,572 (GRCm39) T1362N possibly damaging Homo
Or6f2 G A 7: 139,756,275 (GRCm39) V81M possibly damaging Het
Pcm1 T A 8: 41,728,976 (GRCm39) N649K probably damaging Homo
Pde4dip T C 3: 97,674,146 (GRCm39) K257E probably damaging Het
Pfpl G A 19: 12,406,196 (GRCm39) R149Q probably damaging Homo
Pou2f2 G T 7: 24,796,558 (GRCm39) probably benign Het
Rptn A G 3: 93,303,135 (GRCm39) D156G possibly damaging Het
Sec31a T C 5: 100,511,691 (GRCm39) D1107G probably damaging Het
Stoml3 T C 3: 53,405,415 (GRCm39) F32S probably benign Het
Tnnc1 C A 14: 30,932,147 (GRCm39) D62E probably damaging Homo
Vsig10 C T 5: 117,481,884 (GRCm39) A358V probably damaging Het
Other mutations in Smyd3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL02044:Smyd3 APN 1 178,799,844 (GRCm39) missense probably benign
IGL03088:Smyd3 APN 1 178,921,898 (GRCm39) critical splice donor site probably null
R0165:Smyd3 UTSW 1 178,871,437 (GRCm39) missense probably benign
R0230:Smyd3 UTSW 1 179,250,993 (GRCm39) splice site probably benign
R0390:Smyd3 UTSW 1 178,785,138 (GRCm39) splice site probably benign
R1651:Smyd3 UTSW 1 178,871,441 (GRCm39) missense probably benign
R4651:Smyd3 UTSW 1 178,871,306 (GRCm39) missense probably benign 0.08
R4771:Smyd3 UTSW 1 178,921,961 (GRCm39) missense probably damaging 0.99
R5326:Smyd3 UTSW 1 179,238,024 (GRCm39) missense probably benign
R5542:Smyd3 UTSW 1 179,238,024 (GRCm39) missense probably benign
R5697:Smyd3 UTSW 1 179,239,247 (GRCm39) missense probably damaging 1.00
R5850:Smyd3 UTSW 1 178,871,420 (GRCm39) missense probably damaging 1.00
R6732:Smyd3 UTSW 1 179,223,395 (GRCm39) missense probably benign 0.01
R7782:Smyd3 UTSW 1 178,799,859 (GRCm39) missense possibly damaging 0.94
R8065:Smyd3 UTSW 1 179,238,028 (GRCm39) missense possibly damaging 0.60
R8067:Smyd3 UTSW 1 179,238,028 (GRCm39) missense possibly damaging 0.60
R8236:Smyd3 UTSW 1 179,233,205 (GRCm39) splice site probably null
R8735:Smyd3 UTSW 1 178,920,482 (GRCm39) missense probably benign 0.12
R9146:Smyd3 UTSW 1 178,920,529 (GRCm39) missense probably damaging 1.00
R9185:Smyd3 UTSW 1 178,877,854 (GRCm39) critical splice donor site probably null
R9200:Smyd3 UTSW 1 179,232,963 (GRCm39) missense probably benign 0.04
R9372:Smyd3 UTSW 1 178,871,470 (GRCm39) missense possibly damaging 0.92
X0024:Smyd3 UTSW 1 178,877,854 (GRCm39) critical splice donor site probably null
Nature of Mutation

DNA sequencing using the SOLiD technique identified a T to C transition at position 767 of the Smyd3 transcript.  Multiple transcripts of the Smyd3 gene are displayed on Ensembl. The mutation causes a tyrosine to histidine change at amino acid 239 of the encoded protein using Ensembl record ENSMUSP00000117410. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).

Protein Function and Prediction
The Smyd3  gene encodes a 428 amino acid histone methyltransferase that plays an important role in transcriptional activation. SMYD3 contains a MYND-type zinc finger at amino acids 49-87 and a SET domain at amino acids 126-246 (Uniprot Q9CWR2). 
 
The Y239H change is located in the SET domain in a conserved amino acid implicated in mediating methylation activity, and is predicted to be probably damaging by the PolyPhen program.
Posted On 2010-03-11