Incidental Mutation 'R6682:Ldb3'
ID 527554
Institutional Source Beutler Lab
Gene Symbol Ldb3
Ensembl Gene ENSMUSG00000021798
Gene Name LIM domain binding 3
Synonyms ZASP, cypher
MMRRC Submission 044801-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R6682 (G1)
Quality Score 225.009
Status Not validated
Chromosome 14
Chromosomal Location 34248560-34310639 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 34274221 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Serine at position 334 (T334S)
Ref Sequence ENSEMBL: ENSMUSP00000066784 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022327] [ENSMUST00000022328] [ENSMUST00000064098] [ENSMUST00000090040] [ENSMUST00000228044]
AlphaFold Q9JKS4
Predicted Effect possibly damaging
Transcript: ENSMUST00000022327
AA Change: T378S

PolyPhen 2 Score 0.505 (Sensitivity: 0.88; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000022327
Gene: ENSMUSG00000021798
AA Change: T378S

DomainStartEndE-ValueType
PDZ 11 84 1.68e-16 SMART
low complexity region 138 147 N/A INTRINSIC
ZM 186 211 1.33e-8 SMART
low complexity region 214 229 N/A INTRINSIC
low complexity region 309 353 N/A INTRINSIC
low complexity region 359 376 N/A INTRINSIC
low complexity region 418 473 N/A INTRINSIC
LIM 546 597 2.72e-16 SMART
LIM 605 656 2.65e-19 SMART
LIM 664 717 1.04e-17 SMART
Predicted Effect possibly damaging
Transcript: ENSMUST00000022328
AA Change: T316S

PolyPhen 2 Score 0.637 (Sensitivity: 0.87; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000022328
Gene: ENSMUSG00000021798
AA Change: T316S

DomainStartEndE-ValueType
PDZ 11 84 1.68e-16 SMART
low complexity region 138 147 N/A INTRINSIC
ZM 186 211 1.33e-8 SMART
low complexity region 214 229 N/A INTRINSIC
low complexity region 297 314 N/A INTRINSIC
low complexity region 356 411 N/A INTRINSIC
LIM 484 535 2.72e-16 SMART
LIM 543 594 2.65e-19 SMART
LIM 602 655 1.04e-17 SMART
Predicted Effect possibly damaging
Transcript: ENSMUST00000064098
AA Change: T334S

PolyPhen 2 Score 0.767 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000066784
Gene: ENSMUSG00000021798
AA Change: T334S

DomainStartEndE-ValueType
PDZ 11 84 1.68e-16 SMART
ZM 148 173 5.18e-11 SMART
low complexity region 265 309 N/A INTRINSIC
low complexity region 315 332 N/A INTRINSIC
low complexity region 374 429 N/A INTRINSIC
LIM 502 553 2.72e-16 SMART
LIM 561 612 2.65e-19 SMART
LIM 620 673 1.04e-17 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000090040
AA Change: T339S

PolyPhen 2 Score 0.057 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000087494
Gene: ENSMUSG00000021798
AA Change: T339S

DomainStartEndE-ValueType
PDZ 11 84 1.68e-16 SMART
ZM 148 173 5.18e-11 SMART
low complexity region 270 314 N/A INTRINSIC
low complexity region 320 337 N/A INTRINSIC
low complexity region 379 434 N/A INTRINSIC
LIM 507 558 2.72e-16 SMART
LIM 566 617 2.65e-19 SMART
LIM 625 678 1.04e-17 SMART
Predicted Effect possibly damaging
Transcript: ENSMUST00000228044
AA Change: T277S

PolyPhen 2 Score 0.653 (Sensitivity: 0.87; Specificity: 0.91)
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.7%
  • 10x: 98.4%
  • 20x: 95.6%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a PDZ domain-containing protein. PDZ motifs are modular protein-protein interaction domains consisting of 80-120 amino acid residues. PDZ domain-containing proteins interact with each other in cytoskeletal assembly or with other proteins involved in targeting and clustering of membrane proteins. The protein encoded by this gene interacts with alpha-actinin-2 through its N-terminal PDZ domain and with protein kinase C via its C-terminal LIM domains. The LIM domain is a cysteine-rich motif defined by 50-60 amino acids containing two zinc-binding modules. This protein also interacts with all three members of the myozenin family. Mutations in this gene have been associated with myofibrillar myopathy and dilated cardiomyopathy. Alternatively spliced transcript variants encoding different isoforms have been identified; all isoforms have N-terminal PDZ domains while only longer isoforms (1, 2 and 5) have C-terminal LIM domains. [provided by RefSeq, Jan 2010]
PHENOTYPE: Homozygous mutation of this gene results in lethality within a few days after birth from muscle abnormalities. Mutant mice exhibit myopathy, dysphagia, heart vascular congestion, dilated heart ventricles, cyanosis, and respiratory distress. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 39 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aspm T C 1: 139,385,460 (GRCm39) V368A possibly damaging Het
Bcl9l A G 9: 44,412,400 (GRCm39) T92A possibly damaging Het
Celsr2 A T 3: 108,307,817 (GRCm39) probably null Het
Cndp2 T C 18: 84,695,455 (GRCm39) K149E probably benign Het
Cnpy4 T C 5: 138,185,984 (GRCm39) probably null Het
Cox6c A T 15: 35,938,319 (GRCm39) probably null Het
Cpt2 G T 4: 107,761,627 (GRCm39) S158R probably damaging Het
Dlgap1 A G 17: 71,094,118 (GRCm39) K813R probably damaging Het
Dock10 A C 1: 80,490,338 (GRCm39) L1927R probably damaging Het
Gak T A 5: 108,746,742 (GRCm39) K430I probably damaging Het
Grik3 T A 4: 125,544,259 (GRCm39) Y327N probably damaging Het
Ldlr A G 9: 21,643,671 (GRCm39) D85G probably benign Het
Med26 T A 8: 73,249,927 (GRCm39) T391S probably benign Het
Mmp27 A G 9: 7,573,606 (GRCm39) T233A probably benign Het
Mob1a A G 6: 83,311,132 (GRCm39) Y117C possibly damaging Het
Mrps35 A T 6: 146,949,777 (GRCm39) E97V possibly damaging Het
Msln A T 17: 25,971,993 (GRCm39) S75T probably damaging Het
Myoz1 C T 14: 20,703,687 (GRCm39) probably null Het
Nim1k A G 13: 120,173,724 (GRCm39) I390T probably benign Het
Or10k2 A G 8: 84,268,187 (GRCm39) H138R probably benign Het
Or4k51 C T 2: 111,584,980 (GRCm39) P129S probably damaging Het
Pclo A C 5: 14,589,893 (GRCm39) Q731P unknown Het
Prl3d3 G A 13: 27,345,023 (GRCm39) E132K probably benign Het
Pth1r C T 9: 110,556,319 (GRCm39) probably null Het
Ptpru T C 4: 131,548,093 (GRCm39) M135V probably benign Het
Slc12a9 A T 5: 137,325,663 (GRCm39) L316Q probably damaging Het
Slc35f6 G A 5: 30,814,764 (GRCm39) M177I possibly damaging Het
Smc4 T A 3: 68,914,574 (GRCm39) S62R probably damaging Het
Tmem179 C T 12: 112,469,714 (GRCm39) D29N probably benign Het
Togaram2 A T 17: 72,011,749 (GRCm39) D476V probably benign Het
Trpc4ap C T 2: 155,479,687 (GRCm39) probably null Het
Trpm8 C A 1: 88,254,224 (GRCm39) T149K probably damaging Het
Uhmk1 C T 1: 170,039,804 (GRCm39) probably null Het
Vmn2r79 C A 7: 86,653,370 (GRCm39) T545K possibly damaging Het
Vmn2r95 C A 17: 18,660,489 (GRCm39) N300K probably damaging Het
Wdr41 G A 13: 95,149,639 (GRCm39) G419D probably damaging Het
Zc3hav1 A T 6: 38,302,130 (GRCm39) H597Q probably benign Het
Zfp704 T C 3: 9,630,253 (GRCm39) E36G probably benign Het
Zfp9 A G 6: 118,444,202 (GRCm39) V47A possibly damaging Het
Other mutations in Ldb3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01124:Ldb3 APN 14 34,266,157 (GRCm39) missense probably damaging 0.99
IGL01485:Ldb3 APN 14 34,264,519 (GRCm39) missense probably damaging 1.00
IGL01983:Ldb3 APN 14 34,299,156 (GRCm39) missense probably benign 0.00
R0323:Ldb3 UTSW 14 34,266,002 (GRCm39) missense probably damaging 1.00
R0335:Ldb3 UTSW 14 34,300,608 (GRCm39) missense possibly damaging 0.77
R0483:Ldb3 UTSW 14 34,258,541 (GRCm39) missense probably damaging 1.00
R0920:Ldb3 UTSW 14 34,289,460 (GRCm39) missense probably benign 0.05
R1524:Ldb3 UTSW 14 34,277,313 (GRCm39) missense probably benign 0.01
R2161:Ldb3 UTSW 14 34,289,353 (GRCm39) critical splice donor site probably null
R2246:Ldb3 UTSW 14 34,251,432 (GRCm39) missense probably damaging 0.99
R2865:Ldb3 UTSW 14 34,251,460 (GRCm39) missense probably damaging 1.00
R3113:Ldb3 UTSW 14 34,251,418 (GRCm39) makesense probably null
R3765:Ldb3 UTSW 14 34,300,639 (GRCm39) splice site probably null
R3870:Ldb3 UTSW 14 34,289,440 (GRCm39) missense probably damaging 1.00
R4018:Ldb3 UTSW 14 34,274,128 (GRCm39) splice site probably benign
R4797:Ldb3 UTSW 14 34,277,470 (GRCm39) missense possibly damaging 0.95
R4963:Ldb3 UTSW 14 34,288,815 (GRCm39) missense probably damaging 0.98
R5705:Ldb3 UTSW 14 34,298,986 (GRCm39) missense probably null 0.01
R6401:Ldb3 UTSW 14 34,299,291 (GRCm39) missense probably benign 0.33
R6549:Ldb3 UTSW 14 34,263,854 (GRCm39) missense probably damaging 0.99
R6917:Ldb3 UTSW 14 34,277,321 (GRCm39) missense probably null 0.03
R7132:Ldb3 UTSW 14 34,298,992 (GRCm39) missense probably benign 0.25
R7327:Ldb3 UTSW 14 34,293,759 (GRCm39) missense probably damaging 1.00
R7488:Ldb3 UTSW 14 34,289,402 (GRCm39) missense probably damaging 1.00
R7760:Ldb3 UTSW 14 34,264,460 (GRCm39) missense probably damaging 1.00
R8755:Ldb3 UTSW 14 34,299,256 (GRCm39) missense probably damaging 1.00
R8845:Ldb3 UTSW 14 34,258,634 (GRCm39) missense probably damaging 1.00
R8954:Ldb3 UTSW 14 34,277,301 (GRCm39) missense probably null 0.17
R9179:Ldb3 UTSW 14 34,277,312 (GRCm39) missense probably benign
R9321:Ldb3 UTSW 14 34,266,099 (GRCm39) nonsense probably null
R9702:Ldb3 UTSW 14 34,299,090 (GRCm39) missense probably benign 0.03
Z1176:Ldb3 UTSW 14 34,277,322 (GRCm39) missense probably benign 0.21
Z1177:Ldb3 UTSW 14 34,266,060 (GRCm39) missense probably damaging 0.99
Predicted Primers PCR Primer
(F):5'- AAGGCTCAGTCGGATTCTGC -3'
(R):5'- TAGACTCTGGAAGTGACCCAATG -3'

Sequencing Primer
(F):5'- GGATTCTGCCCTACAACCAGGAG -3'
(R):5'- CCCAATGGGTGTTTCTGTCATAGTC -3'
Posted On 2018-07-23