Incidental Mutation 'R6214:Dmtn'
ID 503632
Institutional Source Beutler Lab
Gene Symbol Dmtn
Ensembl Gene ENSMUSG00000022099
Gene Name dematin actin binding protein
Synonyms dematin, Epb4.9
MMRRC Submission 044347-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.160) question?
Stock # R6214 (G1)
Quality Score 225.009
Status Validated
Chromosome 14
Chromosomal Location 70839624-70873488 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 70850776 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Threonine at position 205 (I205T)
Ref Sequence ENSEMBL: ENSMUSP00000154373 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022694] [ENSMUST00000022695] [ENSMUST00000110984] [ENSMUST00000226543] [ENSMUST00000227331] [ENSMUST00000228001] [ENSMUST00000228824] [ENSMUST00000228009] [ENSMUST00000228295]
AlphaFold Q9WV69
Predicted Effect probably benign
Transcript: ENSMUST00000022694
AA Change: I230T

PolyPhen 2 Score 0.023 (Sensitivity: 0.95; Specificity: 0.81)
SMART Domains Protein: ENSMUSP00000022694
Gene: ENSMUSG00000022099
AA Change: I230T

DomainStartEndE-ValueType
Pfam:AbLIM_anchor 8 93 8e-30 PFAM
Pfam:AbLIM_anchor 79 347 1.9e-58 PFAM
VHP 348 383 1.88e-18 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000022695
AA Change: I205T

PolyPhen 2 Score 0.052 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000022695
Gene: ENSMUSG00000022099
AA Change: I205T

DomainStartEndE-ValueType
low complexity region 60 72 N/A INTRINSIC
low complexity region 88 99 N/A INTRINSIC
low complexity region 149 160 N/A INTRINSIC
coiled coil region 188 220 N/A INTRINSIC
low complexity region 252 267 N/A INTRINSIC
VHP 345 380 1.88e-18 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000110984
AA Change: I230T

PolyPhen 2 Score 0.023 (Sensitivity: 0.95; Specificity: 0.81)
SMART Domains Protein: ENSMUSP00000106612
Gene: ENSMUSG00000022099
AA Change: I230T

DomainStartEndE-ValueType
low complexity region 11 29 N/A INTRINSIC
low complexity region 85 97 N/A INTRINSIC
low complexity region 113 124 N/A INTRINSIC
low complexity region 174 185 N/A INTRINSIC
coiled coil region 213 245 N/A INTRINSIC
low complexity region 277 292 N/A INTRINSIC
VHP 348 383 1.88e-18 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000226543
Predicted Effect probably benign
Transcript: ENSMUST00000227331
Predicted Effect noncoding transcript
Transcript: ENSMUST00000227453
Predicted Effect probably benign
Transcript: ENSMUST00000228001
AA Change: I205T

PolyPhen 2 Score 0.009 (Sensitivity: 0.96; Specificity: 0.77)
Predicted Effect probably benign
Transcript: ENSMUST00000228824
AA Change: I205T

PolyPhen 2 Score 0.009 (Sensitivity: 0.96; Specificity: 0.77)
Predicted Effect probably benign
Transcript: ENSMUST00000228009
AA Change: I230T

PolyPhen 2 Score 0.023 (Sensitivity: 0.95; Specificity: 0.81)
Predicted Effect probably benign
Transcript: ENSMUST00000228295
AA Change: I205T

PolyPhen 2 Score 0.052 (Sensitivity: 0.94; Specificity: 0.83)
Meta Mutation Damage Score 0.0846 question?
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.3%
  • 20x: 97.8%
Validation Efficiency 97% (37/38)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene is an actin binding and bundling protein that plays a structural role in erythrocytes, by stabilizing and attaching the spectrin/actin cytoskeleton to the erythrocyte membrane in a phosphorylation-dependent manner. This protein contains a core domain in the N-terminus, and a headpiece domain in the C-terminus that binds F-actin. When purified from erythrocytes, this protein exists as a trimer composed of two 48 kDa polypeptides and a 52 kDa polypeptide. The different subunits arise from alternative splicing in the 3' coding region, where the headpiece domain is located. Disruption of this gene has been correlated with the autosomal dominant Marie Unna hereditary hypotrichosis disease, while loss of heterozygosity of this gene is thought to play a role in prostate cancer progression. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Nov 2014]
PHENOTYPE: Mice homozygous for a targeted mutation display mild anemia and spherocytosis. Mutant erythrocytes are osmotically fragile and show reduced deformability and filterability as well as increased membrane fragmentation and selective loss of spectrin and actin from RBC membrane skeletons and vesicles. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 38 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Asap3 A C 4: 135,968,736 (GRCm39) D727A possibly damaging Het
Aste1 A G 9: 105,274,056 (GRCm39) K38E probably damaging Het
Atp13a5 T C 16: 29,070,159 (GRCm39) Y909C probably damaging Het
Ccdc13 A G 9: 121,627,975 (GRCm39) probably benign Het
Cd79b C A 11: 106,203,267 (GRCm39) probably null Het
Chia1 T C 3: 106,029,761 (GRCm39) F132L probably damaging Het
Cntrl A G 2: 35,019,646 (GRCm39) E491G probably benign Het
Ctdnep1 T C 11: 69,880,334 (GRCm39) F206L probably damaging Het
Dido1 T C 2: 180,303,945 (GRCm39) K1320E probably damaging Het
Dmbt1 G T 7: 130,668,463 (GRCm39) C573F possibly damaging Het
Eif4g3 C T 4: 137,785,314 (GRCm39) H137Y probably damaging Het
Flg2 G T 3: 93,109,166 (GRCm39) C398F possibly damaging Het
Gabbr1 A G 17: 37,380,257 (GRCm39) D604G probably damaging Het
Glis2 T A 16: 4,428,197 (GRCm39) L83* probably null Het
Glra3 A G 8: 56,444,291 (GRCm39) probably null Het
Hipk3 T C 2: 104,264,086 (GRCm39) D804G probably damaging Het
Kcnd1 G C X: 7,690,148 (GRCm39) A23P probably damaging Homo
Lrrc9 A T 12: 72,506,627 (GRCm39) E301D probably damaging Het
Ms4a6c T C 19: 11,448,500 (GRCm39) I11T possibly damaging Het
Myo1d A T 11: 80,670,617 (GRCm39) M1K probably null Het
Nav3 A G 10: 109,688,426 (GRCm39) L617P probably damaging Het
Or8b3b A G 9: 38,584,510 (GRCm39) S90P probably benign Het
Pcsk7 A C 9: 45,821,674 (GRCm39) N156T possibly damaging Het
Pde4d C T 13: 110,085,967 (GRCm39) S515L probably damaging Het
Pira13 A G 7: 3,824,717 (GRCm39) I554T probably damaging Het
Prom2 A G 2: 127,381,695 (GRCm39) probably null Het
Rsf1 G GACGGCGGCA 7: 97,229,116 (GRCm39) probably benign Het
Scn3a T C 2: 65,325,380 (GRCm39) I1046V probably benign Het
Slc13a1 A T 6: 24,090,795 (GRCm39) Y541* probably null Het
Speer1d C T 5: 11,307,197 (GRCm39) T25I probably damaging Het
Spen C T 4: 141,206,423 (GRCm39) E735K unknown Het
Tm6sf2 T C 8: 70,525,724 (GRCm39) V27A possibly damaging Het
Trim21 A G 7: 102,208,646 (GRCm39) S358P probably damaging Het
Ttc21a A G 9: 119,795,838 (GRCm39) Y1224C probably damaging Het
Ttn T A 2: 76,710,552 (GRCm39) probably benign Het
Vmn2r99 A G 17: 19,602,820 (GRCm39) Q525R probably benign Het
Vsig10 G A 5: 117,481,989 (GRCm39) C393Y probably damaging Het
Ywhag A G 5: 135,939,928 (GRCm39) I222T probably damaging Het
Other mutations in Dmtn
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01802:Dmtn APN 14 70,842,259 (GRCm39) missense probably damaging 1.00
IGL02836:Dmtn APN 14 70,853,518 (GRCm39) missense probably damaging 1.00
R1248:Dmtn UTSW 14 70,850,098 (GRCm39) splice site probably benign
R2428:Dmtn UTSW 14 70,850,843 (GRCm39) missense probably damaging 1.00
R3438:Dmtn UTSW 14 70,850,156 (GRCm39) missense probably damaging 0.98
R4851:Dmtn UTSW 14 70,842,254 (GRCm39) missense probably damaging 1.00
R4917:Dmtn UTSW 14 70,843,159 (GRCm39) missense probably damaging 0.98
R4924:Dmtn UTSW 14 70,855,399 (GRCm39) missense probably benign 0.25
R5633:Dmtn UTSW 14 70,842,419 (GRCm39) missense probably benign 0.18
R6170:Dmtn UTSW 14 70,854,795 (GRCm39) missense probably damaging 1.00
R6215:Dmtn UTSW 14 70,850,776 (GRCm39) missense probably benign 0.05
R6639:Dmtn UTSW 14 70,854,870 (GRCm39) missense probably damaging 1.00
R6860:Dmtn UTSW 14 70,852,322 (GRCm39) missense possibly damaging 0.94
R7139:Dmtn UTSW 14 70,854,867 (GRCm39) missense probably benign 0.12
R7242:Dmtn UTSW 14 70,855,460 (GRCm39) missense probably damaging 1.00
R7380:Dmtn UTSW 14 70,854,768 (GRCm39) missense probably damaging 0.99
R7572:Dmtn UTSW 14 70,842,777 (GRCm39) missense possibly damaging 0.93
R8806:Dmtn UTSW 14 70,852,388 (GRCm39) missense probably benign 0.26
R8888:Dmtn UTSW 14 70,850,144 (GRCm39) missense probably benign 0.18
R8895:Dmtn UTSW 14 70,850,144 (GRCm39) missense probably benign 0.18
R9027:Dmtn UTSW 14 70,853,555 (GRCm39) missense probably damaging 0.99
R9032:Dmtn UTSW 14 70,853,534 (GRCm39) missense probably damaging 0.99
R9085:Dmtn UTSW 14 70,853,534 (GRCm39) missense probably damaging 0.99
R9694:Dmtn UTSW 14 70,852,732 (GRCm39) critical splice acceptor site probably null
Predicted Primers PCR Primer
(F):5'- TTAATGTCCAGGACCACTGTTCC -3'
(R):5'- AGACAGACTTTGTTCCAGCC -3'

Sequencing Primer
(F):5'- TCCTGGTAAAGAAGAGGCACCTC -3'
(R):5'- AGCCCTGTTCCACAAGCTG -3'
Posted On 2018-02-27