Incidental Mutation 'R1348:Speg'
ID 156551
Institutional Source Beutler Lab
Gene Symbol Speg
Ensembl Gene ENSMUSG00000026207
Gene Name SPEG complex locus
Synonyms SPEG, SPEGalpha, SPEGbeta, Apeg1, BPEG, D1Bwg1450e
MMRRC Submission 039413-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R1348 (G1)
Quality Score 116
Status Not validated
Chromosome 1
Chromosomal Location 75351941-75408964 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 75399516 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glycine to Aspartic acid at position 2321 (G2321D)
Ref Sequence ENSEMBL: ENSMUSP00000084361 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000087122]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000087122
AA Change: G2321D

PolyPhen 2 Score 0.991 (Sensitivity: 0.71; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000084361
Gene: ENSMUSG00000026207
AA Change: G2321D

DomainStartEndE-ValueType
IG 51 128 1.48e-6 SMART
low complexity region 292 318 N/A INTRINSIC
low complexity region 325 338 N/A INTRINSIC
low complexity region 359 368 N/A INTRINSIC
low complexity region 412 423 N/A INTRINSIC
low complexity region 573 584 N/A INTRINSIC
IGc2 739 806 2.19e-9 SMART
Pfam:SPEG_u2 817 873 2.4e-36 PFAM
IGc2 886 954 4.03e-8 SMART
IG 979 1064 1.05e-6 SMART
IGc2 1081 1148 2.19e-9 SMART
IG 1199 1283 6.87e-2 SMART
FN3 1287 1373 1.38e-4 SMART
IG 1401 1487 2.64e-3 SMART
IGc2 1502 1569 1.12e-6 SMART
STYKc 1606 1859 8.44e-63 SMART
Blast:STYKc 1861 1895 6e-12 BLAST
low complexity region 1918 1939 N/A INTRINSIC
low complexity region 2069 2081 N/A INTRINSIC
low complexity region 2208 2227 N/A INTRINSIC
low complexity region 2230 2249 N/A INTRINSIC
low complexity region 2255 2269 N/A INTRINSIC
low complexity region 2343 2366 N/A INTRINSIC
low complexity region 2410 2422 N/A INTRINSIC
low complexity region 2433 2451 N/A INTRINSIC
low complexity region 2457 2487 N/A INTRINSIC
low complexity region 2524 2544 N/A INTRINSIC
IGc2 2599 2667 2.05e-9 SMART
FN3 2681 2760 2.5e-2 SMART
low complexity region 2775 2789 N/A INTRINSIC
low complexity region 2802 2831 N/A INTRINSIC
low complexity region 2912 2927 N/A INTRINSIC
STYKc 2961 3213 4.42e-66 SMART
low complexity region 3241 3250 N/A INTRINSIC
Predicted Effect unknown
Transcript: ENSMUST00000137868
AA Change: G2068D
Predicted Effect noncoding transcript
Transcript: ENSMUST00000143679
Coding Region Coverage
  • 1x: 98.8%
  • 3x: 97.6%
  • 10x: 94.2%
  • 20x: 87.2%
Validation Efficiency
MGI Phenotype FUNCTION: This gene encodes a protein with similarity to members of the myosin light chain kinase family. This protein family is required for myocyte cytoskeletal development. Studies have determined that a lack of this protein affected myocardial development. Multiple alternatively spliced transcript variants that encode different protein isoforms have been defined. [provided by RefSeq, Mar 2010]
PHENOTYPE: Mice homozygous for a knock-out allele die during the early postnatal period with enlarged, dilated hearts, and decreased cardiac function. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 30 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca3 A G 17: 24,593,212 (GRCm39) probably null Het
Art1 G A 7: 101,756,579 (GRCm39) A33T possibly damaging Het
Aspa G A 11: 73,215,309 (GRCm39) T2I probably damaging Het
Cntn1 C T 15: 92,212,544 (GRCm39) T902I probably damaging Het
Dpep1 G A 8: 123,925,899 (GRCm39) C118Y probably benign Het
Garin1a A G 6: 29,283,284 (GRCm39) H36R probably benign Het
Gucy2g C T 19: 55,211,338 (GRCm39) V631I possibly damaging Het
Igf1r C G 7: 67,868,216 (GRCm39) N1220K probably damaging Het
Insr A T 8: 3,242,635 (GRCm39) I28N probably damaging Het
Katnal2 T C 18: 77,066,238 (GRCm39) probably null Het
Klrb1a T C 6: 128,586,797 (GRCm39) D156G possibly damaging Het
Kpna6 G A 4: 129,555,152 (GRCm39) R26* probably null Het
Muc2 CGTG CGTGTG 7: 141,699,185 (GRCm38) probably null Het
Naa15 C G 3: 51,373,091 (GRCm39) C661W probably damaging Het
Or10g7 T C 9: 39,905,124 (GRCm39) I6T probably benign Het
Or1e1 G T 11: 73,244,682 (GRCm39) M34I probably benign Het
Or8g20 A G 9: 39,396,532 (GRCm39) S3P probably benign Het
Paxbp1 A G 16: 90,831,904 (GRCm39) V328A probably damaging Het
Pkd1l1 T C 11: 8,784,806 (GRCm39) T1993A probably benign Het
Pold1 C T 7: 44,184,106 (GRCm39) V865I probably benign Het
Racgap1 A G 15: 99,524,246 (GRCm39) I387T possibly damaging Het
Rbm15 G T 3: 107,239,946 (GRCm39) R151S possibly damaging Het
Rbms2 C T 10: 128,012,214 (GRCm39) probably null Het
Recql4 A G 15: 76,593,411 (GRCm39) I140T probably benign Het
Shld2 T A 14: 33,990,880 (GRCm39) I9F probably damaging Het
Sorl1 A T 9: 41,911,708 (GRCm39) probably null Het
Trp53tg5 A G 2: 164,315,521 (GRCm39) probably null Het
Tyw3 A C 3: 154,299,451 (GRCm39) M86R possibly damaging Het
Vmn1r11 G A 6: 57,114,963 (GRCm39) C209Y probably benign Het
Zfp472 T A 17: 33,196,794 (GRCm39) F290I probably benign Het
Other mutations in Speg
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00838:Speg APN 1 75,387,034 (GRCm39) missense possibly damaging 0.95
IGL00979:Speg APN 1 75,387,378 (GRCm39) missense probably damaging 0.98
IGL01122:Speg APN 1 75,386,679 (GRCm39) missense probably damaging 1.00
IGL01293:Speg APN 1 75,364,746 (GRCm39) missense probably damaging 1.00
IGL01304:Speg APN 1 75,404,841 (GRCm39) missense probably benign 0.00
IGL01351:Speg APN 1 75,387,920 (GRCm39) splice site probably benign
IGL01473:Speg APN 1 75,404,929 (GRCm39) missense possibly damaging 0.53
IGL01477:Speg APN 1 75,368,541 (GRCm39) missense probably damaging 1.00
IGL01485:Speg APN 1 75,364,471 (GRCm39) missense probably damaging 1.00
IGL01584:Speg APN 1 75,407,581 (GRCm39) missense probably damaging 1.00
IGL01959:Speg APN 1 75,367,734 (GRCm39) missense probably damaging 1.00
IGL02231:Speg APN 1 75,400,031 (GRCm39) missense probably damaging 1.00
IGL02355:Speg APN 1 75,400,559 (GRCm39) missense possibly damaging 0.49
IGL02362:Speg APN 1 75,400,559 (GRCm39) missense possibly damaging 0.49
IGL03013:Speg APN 1 75,407,923 (GRCm39) missense probably damaging 0.97
IGL03168:Speg APN 1 75,364,831 (GRCm39) missense probably damaging 1.00
H8562:Speg UTSW 1 75,392,241 (GRCm39) missense probably benign 0.39
R0112:Speg UTSW 1 75,361,676 (GRCm39) missense possibly damaging 0.92
R0311:Speg UTSW 1 75,407,581 (GRCm39) missense probably damaging 1.00
R0315:Speg UTSW 1 75,391,780 (GRCm39) missense possibly damaging 0.88
R0393:Speg UTSW 1 75,400,568 (GRCm39) missense possibly damaging 0.46
R0403:Speg UTSW 1 75,407,428 (GRCm39) splice site probably benign
R0483:Speg UTSW 1 75,361,676 (GRCm39) missense possibly damaging 0.92
R0648:Speg UTSW 1 75,404,622 (GRCm39) missense probably benign
R0683:Speg UTSW 1 75,405,762 (GRCm39) missense probably damaging 1.00
R0800:Speg UTSW 1 75,400,133 (GRCm39) missense probably damaging 1.00
R0815:Speg UTSW 1 75,392,036 (GRCm39) missense probably damaging 1.00
R0835:Speg UTSW 1 75,352,318 (GRCm39) missense probably benign 0.00
R0866:Speg UTSW 1 75,393,727 (GRCm39) missense probably damaging 0.99
R0880:Speg UTSW 1 75,381,705 (GRCm39) missense probably damaging 1.00
R1082:Speg UTSW 1 75,391,782 (GRCm39) missense possibly damaging 0.94
R1140:Speg UTSW 1 75,405,739 (GRCm39) missense probably damaging 1.00
R1252:Speg UTSW 1 75,403,739 (GRCm39) missense probably damaging 1.00
R1301:Speg UTSW 1 75,378,145 (GRCm39) missense probably damaging 1.00
R1388:Speg UTSW 1 75,407,104 (GRCm39) missense probably damaging 0.99
R1465:Speg UTSW 1 75,405,128 (GRCm39) splice site probably benign
R1505:Speg UTSW 1 75,352,186 (GRCm39) missense probably benign 0.02
R1506:Speg UTSW 1 75,394,307 (GRCm39) missense probably benign 0.03
R1531:Speg UTSW 1 75,377,866 (GRCm39) missense possibly damaging 0.86
R1543:Speg UTSW 1 75,398,595 (GRCm39) missense probably damaging 1.00
R1567:Speg UTSW 1 75,404,691 (GRCm39) missense probably benign
R1630:Speg UTSW 1 75,399,621 (GRCm39) missense probably damaging 1.00
R1667:Speg UTSW 1 75,387,193 (GRCm39) splice site probably benign
R1673:Speg UTSW 1 75,387,807 (GRCm39) missense possibly damaging 0.60
R1718:Speg UTSW 1 75,398,388 (GRCm39) missense possibly damaging 0.87
R1718:Speg UTSW 1 75,394,507 (GRCm39) missense probably benign 0.00
R1719:Speg UTSW 1 75,394,507 (GRCm39) missense probably benign 0.00
R1759:Speg UTSW 1 75,377,806 (GRCm39) missense possibly damaging 0.95
R1861:Speg UTSW 1 75,365,649 (GRCm39) missense probably damaging 1.00
R1874:Speg UTSW 1 75,400,550 (GRCm39) missense probably benign
R1936:Speg UTSW 1 75,408,052 (GRCm39) missense possibly damaging 0.93
R2192:Speg UTSW 1 75,394,371 (GRCm39) missense probably damaging 1.00
R2204:Speg UTSW 1 75,407,121 (GRCm39) missense probably benign 0.30
R2287:Speg UTSW 1 75,407,109 (GRCm39) missense possibly damaging 0.76
R2696:Speg UTSW 1 75,383,570 (GRCm39) missense probably benign 0.27
R2983:Speg UTSW 1 75,361,574 (GRCm39) missense possibly damaging 0.83
R3110:Speg UTSW 1 75,399,326 (GRCm39) nonsense probably null
R3112:Speg UTSW 1 75,399,326 (GRCm39) nonsense probably null
R3154:Speg UTSW 1 75,378,186 (GRCm39) missense probably damaging 1.00
R3720:Speg UTSW 1 75,403,426 (GRCm39) missense probably damaging 1.00
R3983:Speg UTSW 1 75,399,191 (GRCm39) missense probably benign 0.27
R4133:Speg UTSW 1 75,404,548 (GRCm39) missense probably benign
R4522:Speg UTSW 1 75,404,974 (GRCm39) missense probably damaging 1.00
R4564:Speg UTSW 1 75,368,478 (GRCm39) missense probably damaging 1.00
R4577:Speg UTSW 1 75,392,039 (GRCm39) missense probably damaging 1.00
R4858:Speg UTSW 1 75,398,379 (GRCm39) missense probably damaging 1.00
R4953:Speg UTSW 1 75,400,508 (GRCm39) missense possibly damaging 0.72
R4965:Speg UTSW 1 75,404,347 (GRCm39) missense probably damaging 1.00
R4967:Speg UTSW 1 75,364,513 (GRCm39) missense probably damaging 1.00
R5152:Speg UTSW 1 75,404,742 (GRCm39) missense possibly damaging 0.92
R5156:Speg UTSW 1 75,404,731 (GRCm39) missense probably damaging 0.99
R5371:Speg UTSW 1 75,408,037 (GRCm39) missense possibly damaging 0.50
R5550:Speg UTSW 1 75,405,744 (GRCm39) missense probably damaging 1.00
R5562:Speg UTSW 1 75,403,700 (GRCm39) missense probably damaging 1.00
R5687:Speg UTSW 1 75,395,773 (GRCm39) splice site probably null
R5985:Speg UTSW 1 75,383,328 (GRCm39) missense possibly damaging 0.94
R6004:Speg UTSW 1 75,392,247 (GRCm39) nonsense probably null
R6038:Speg UTSW 1 75,395,103 (GRCm39) critical splice donor site probably null
R6038:Speg UTSW 1 75,395,103 (GRCm39) critical splice donor site probably null
R6143:Speg UTSW 1 75,391,031 (GRCm39) missense probably damaging 1.00
R6265:Speg UTSW 1 75,383,323 (GRCm39) nonsense probably null
R6347:Speg UTSW 1 75,403,519 (GRCm39) missense probably benign 0.00
R6453:Speg UTSW 1 75,394,616 (GRCm39) missense probably benign 0.06
R6505:Speg UTSW 1 75,406,167 (GRCm39) missense possibly damaging 0.93
R6505:Speg UTSW 1 75,383,328 (GRCm39) missense possibly damaging 0.94
R6531:Speg UTSW 1 75,399,401 (GRCm39) missense probably benign 0.03
R6566:Speg UTSW 1 75,365,107 (GRCm39) missense probably damaging 1.00
R6747:Speg UTSW 1 75,387,039 (GRCm39) critical splice donor site probably null
R6819:Speg UTSW 1 75,368,456 (GRCm39) missense possibly damaging 0.56
R6821:Speg UTSW 1 75,394,547 (GRCm39) missense possibly damaging 0.83
R6919:Speg UTSW 1 75,364,552 (GRCm39) nonsense probably null
R6981:Speg UTSW 1 75,407,557 (GRCm39) missense probably damaging 1.00
R7002:Speg UTSW 1 75,399,912 (GRCm39) missense probably damaging 0.98
R7082:Speg UTSW 1 75,388,091 (GRCm39) missense probably damaging 0.96
R7140:Speg UTSW 1 75,383,414 (GRCm39) critical splice donor site probably null
R7175:Speg UTSW 1 75,399,134 (GRCm39) missense probably benign 0.01
R7178:Speg UTSW 1 75,399,027 (GRCm39) missense possibly damaging 0.46
R7345:Speg UTSW 1 75,361,479 (GRCm39) missense probably damaging 0.97
R7420:Speg UTSW 1 75,407,549 (GRCm39) missense probably damaging 1.00
R7537:Speg UTSW 1 75,378,108 (GRCm39) missense probably damaging 1.00
R7562:Speg UTSW 1 75,407,923 (GRCm39) missense probably damaging 0.97
R7615:Speg UTSW 1 75,405,886 (GRCm39) missense probably damaging 1.00
R7679:Speg UTSW 1 75,382,959 (GRCm39) missense probably damaging 1.00
R7692:Speg UTSW 1 75,377,834 (GRCm39) missense probably benign 0.04
R7696:Speg UTSW 1 75,405,805 (GRCm39) missense probably damaging 1.00
R7719:Speg UTSW 1 75,352,469 (GRCm39) missense probably damaging 1.00
R7794:Speg UTSW 1 75,365,514 (GRCm39) missense probably benign 0.00
R7824:Speg UTSW 1 75,360,661 (GRCm39) splice site probably null
R7834:Speg UTSW 1 75,361,571 (GRCm39) missense probably damaging 1.00
R7892:Speg UTSW 1 75,403,810 (GRCm39) missense probably damaging 1.00
R8015:Speg UTSW 1 75,392,065 (GRCm39) splice site probably benign
R8068:Speg UTSW 1 75,398,894 (GRCm39) missense probably damaging 1.00
R8085:Speg UTSW 1 75,391,997 (GRCm39) missense probably damaging 1.00
R8130:Speg UTSW 1 75,392,240 (GRCm39) missense probably damaging 1.00
R8132:Speg UTSW 1 75,399,639 (GRCm39) missense probably damaging 1.00
R8239:Speg UTSW 1 75,395,677 (GRCm39) missense probably damaging 1.00
R8287:Speg UTSW 1 75,398,880 (GRCm39) missense probably benign 0.26
R8299:Speg UTSW 1 75,364,480 (GRCm39) missense possibly damaging 0.95
R8441:Speg UTSW 1 75,387,976 (GRCm39) missense possibly damaging 0.60
R8468:Speg UTSW 1 75,407,953 (GRCm39) missense probably damaging 1.00
R8555:Speg UTSW 1 75,378,908 (GRCm39) splice site probably null
R8781:Speg UTSW 1 75,383,665 (GRCm39) missense probably damaging 1.00
R8784:Speg UTSW 1 75,381,793 (GRCm39) critical splice donor site probably benign
R8848:Speg UTSW 1 75,404,082 (GRCm39) critical splice donor site probably null
R8881:Speg UTSW 1 75,377,795 (GRCm39) missense possibly damaging 0.67
R8898:Speg UTSW 1 75,365,517 (GRCm39) missense probably damaging 1.00
R8935:Speg UTSW 1 75,399,250 (GRCm39) missense probably benign 0.30
R9019:Speg UTSW 1 75,405,882 (GRCm39) missense probably damaging 1.00
R9027:Speg UTSW 1 75,365,076 (GRCm39) missense possibly damaging 0.67
R9066:Speg UTSW 1 75,361,654 (GRCm39) missense probably damaging 0.99
R9092:Speg UTSW 1 75,399,378 (GRCm39) missense probably benign 0.01
R9117:Speg UTSW 1 75,364,444 (GRCm39) missense probably damaging 1.00
R9202:Speg UTSW 1 75,367,637 (GRCm39) missense probably damaging 1.00
R9246:Speg UTSW 1 75,361,498 (GRCm39) missense probably damaging 1.00
R9248:Speg UTSW 1 75,398,420 (GRCm39) missense probably damaging 1.00
R9451:Speg UTSW 1 75,394,377 (GRCm39) missense probably damaging 1.00
R9452:Speg UTSW 1 75,399,152 (GRCm39) missense probably benign
R9475:Speg UTSW 1 75,364,735 (GRCm39) missense probably damaging 1.00
R9476:Speg UTSW 1 75,377,768 (GRCm39) missense probably damaging 0.99
R9510:Speg UTSW 1 75,377,768 (GRCm39) missense probably damaging 0.99
R9519:Speg UTSW 1 75,392,380 (GRCm39) missense probably damaging 1.00
R9528:Speg UTSW 1 75,364,447 (GRCm39) missense possibly damaging 0.78
R9542:Speg UTSW 1 75,399,426 (GRCm39) missense probably benign 0.08
R9553:Speg UTSW 1 75,394,645 (GRCm39) missense probably benign 0.00
R9767:Speg UTSW 1 75,403,825 (GRCm39) missense possibly damaging 0.78
R9768:Speg UTSW 1 75,395,617 (GRCm39) nonsense probably null
R9800:Speg UTSW 1 75,399,358 (GRCm39) missense probably benign 0.03
X0025:Speg UTSW 1 75,399,101 (GRCm39) missense probably damaging 1.00
X0026:Speg UTSW 1 75,400,119 (GRCm39) missense possibly damaging 0.88
Z1176:Speg UTSW 1 75,383,238 (GRCm39) missense probably damaging 1.00
Z1177:Speg UTSW 1 75,404,327 (GRCm39) missense probably damaging 1.00
Z1177:Speg UTSW 1 75,407,099 (GRCm39) missense probably damaging 0.99
Z1177:Speg UTSW 1 75,405,025 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- TATCTGCCCTTAGCGAGACCCAGCC -3'
(R):5'- CTTCTGCGACAGGGACAGCGAAAG -3'

Sequencing Primer
(F):5'- TATGCCCAGATCATGCAGTCG -3'
(R):5'- TACCCTGAGGTCCTGCAC -3'
Posted On 2014-02-11