Incidental Mutation 'N/A - 293:Lrig1'
ID 51
Institutional Source Beutler Lab
Gene Symbol Lrig1
Ensembl Gene ENSMUSG00000030029
Gene Name leucine-rich repeats and immunoglobulin-like domains 1
Synonyms LIG-1, Img
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # N/A - 293 of strain aoba
Quality Score
Status Validated
Chromosome 6
Chromosomal Location 94581510-94677139 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 94586068 bp (GRCm39)
Zygosity Homozygous
Amino Acid Change Threonine to Alanine at position 707 (T707A)
Ref Sequence ENSEMBL: ENSMUSP00000144963 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000032105] [ENSMUST00000061118] [ENSMUST00000101126] [ENSMUST00000204235] [ENSMUST00000204645]
AlphaFold P70193
Predicted Effect probably benign
Transcript: ENSMUST00000032105
AA Change: T707A

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000032105
Gene: ENSMUSG00000030029
AA Change: T707A

DomainStartEndE-ValueType
signal peptide 1 34 N/A INTRINSIC
LRRNT 42 74 5.82e-6 SMART
LRR 68 92 4.83e0 SMART
LRR 93 115 9.96e-1 SMART
LRR 142 163 6.22e0 SMART
LRR 166 187 1.81e1 SMART
LRR 190 212 5.72e0 SMART
LRR 213 235 1.06e1 SMART
LRR_TYP 236 259 2.79e-4 SMART
LRR 260 283 2.54e1 SMART
LRR 284 307 9.96e-1 SMART
LRR 308 331 4.21e1 SMART
LRR_TYP 332 355 8.6e-5 SMART
LRR 356 382 1.06e1 SMART
LRR 383 406 9.96e-1 SMART
LRR_TYP 407 430 3.34e-2 SMART
LRRCT 442 492 3.5e-15 SMART
IGc2 509 586 1.34e-4 SMART
IGc2 613 681 2.87e-13 SMART
IGc2 707 772 6.44e-16 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000061118
SMART Domains Protein: ENSMUSP00000058028
Gene: ENSMUSG00000045100

DomainStartEndE-ValueType
Pfam:Mito_carr 2 82 7e-14 PFAM
Pfam:Mito_carr 84 173 4e-16 PFAM
Pfam:Mito_carr 176 269 2.8e-22 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000101126
AA Change: T707A

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000098686
Gene: ENSMUSG00000030029
AA Change: T707A

DomainStartEndE-ValueType
signal peptide 1 34 N/A INTRINSIC
LRRNT 42 74 5.82e-6 SMART
LRR 68 92 4.83e0 SMART
LRR 93 115 9.96e-1 SMART
LRR 142 163 6.22e0 SMART
LRR 166 187 1.81e1 SMART
LRR 190 212 5.72e0 SMART
LRR 213 235 1.06e1 SMART
LRR_TYP 236 259 2.79e-4 SMART
LRR 260 283 2.54e1 SMART
LRR 284 307 9.96e-1 SMART
LRR 308 331 4.21e1 SMART
LRR_TYP 332 355 8.6e-5 SMART
LRR 356 382 1.06e1 SMART
LRR 383 406 9.96e-1 SMART
LRR_TYP 407 430 3.34e-2 SMART
LRRCT 442 492 3.5e-15 SMART
IGc2 509 586 1.34e-4 SMART
IGc2 613 681 2.87e-13 SMART
IGc2 707 772 6.44e-16 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000183891
Predicted Effect noncoding transcript
Transcript: ENSMUST00000203876
Predicted Effect probably benign
Transcript: ENSMUST00000204235
SMART Domains Protein: ENSMUSP00000145328
Gene: ENSMUSG00000045100

DomainStartEndE-ValueType
Pfam:Mito_carr 2 43 2.7e-7 PFAM
Pfam:Mito_carr 38 82 8.2e-6 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000204645
AA Change: T707A

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000144963
Gene: ENSMUSG00000030029
AA Change: T707A

DomainStartEndE-ValueType
signal peptide 1 34 N/A INTRINSIC
LRRNT 42 74 5.82e-6 SMART
LRR 68 92 4.83e0 SMART
LRR 93 115 9.96e-1 SMART
LRR 142 163 6.22e0 SMART
LRR 166 187 1.81e1 SMART
LRR 190 212 5.72e0 SMART
LRR 213 235 1.06e1 SMART
LRR_TYP 236 259 2.79e-4 SMART
LRR 260 283 2.54e1 SMART
LRR 284 307 9.96e-1 SMART
LRR 308 331 4.21e1 SMART
LRR_TYP 332 355 8.6e-5 SMART
LRR 356 382 1.06e1 SMART
LRR 383 406 9.96e-1 SMART
LRR_TYP 407 430 3.34e-2 SMART
LRRCT 442 492 3.5e-15 SMART
IGc2 509 586 1.34e-4 SMART
IGc2 613 681 2.87e-13 SMART
IGc2 707 772 6.44e-16 SMART
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 88.4%
  • 3x: 74.0%
Validation Efficiency 85% (165/193)
MGI Phenotype PHENOTYPE: Homozygous null mice developed psoriasiform epidermal hyperplasia. Homozygotes exhibit hair follicle, epidermis, vertebral, eye and hearing abnormalities, decreased body size and fat amount, and increased susceptibility to bacterial infection. [provided by MGI curators]
Allele List at MGI

All alleles(5) : Targeted(4) Gene trapped(1)

Other mutations in this stock
Total: 8 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Exoc1l T C 5: 76,664,339 (GRCm39) S143P probably benign Homo
Gm7634 T A 1: 16,124,084 (GRCm39) noncoding transcript Homo
Kras T A 6: 145,177,940 (GRCm39) M111L probably benign Homo
Mycbp2 A G 14: 103,461,898 (GRCm39) probably benign Homo
Or2a7 C T 6: 43,151,493 (GRCm39) T191I probably benign Homo
Smarcad1 T A 6: 65,051,898 (GRCm39) F344I probably benign Homo
Sprr4 G A 3: 92,407,650 (GRCm39) Q51* probably null Homo
Zeb1 A T 18: 5,767,076 (GRCm39) H529L possibly damaging Homo
Other mutations in Lrig1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00474:Lrig1 APN 6 94,588,385 (GRCm39) missense probably damaging 0.99
IGL01356:Lrig1 APN 6 94,586,874 (GRCm39) missense probably damaging 1.00
IGL01356:Lrig1 APN 6 94,631,901 (GRCm39) missense probably benign 0.00
IGL02001:Lrig1 APN 6 94,584,305 (GRCm39) missense probably benign 0.00
IGL02019:Lrig1 APN 6 94,593,410 (GRCm39) missense probably damaging 0.98
IGL02177:Lrig1 APN 6 94,640,977 (GRCm39) missense possibly damaging 0.76
IGL02274:Lrig1 APN 6 94,640,919 (GRCm39) missense possibly damaging 0.90
IGL03197:Lrig1 APN 6 94,583,099 (GRCm39) missense probably benign
IGL03263:Lrig1 APN 6 94,588,628 (GRCm39) missense probably benign 0.00
IGL03327:Lrig1 APN 6 94,583,104 (GRCm39) missense probably benign 0.10
R0019:Lrig1 UTSW 6 94,584,330 (GRCm39) nonsense probably null
R0019:Lrig1 UTSW 6 94,584,330 (GRCm39) nonsense probably null
R0961:Lrig1 UTSW 6 94,640,895 (GRCm39) splice site probably benign
R1018:Lrig1 UTSW 6 94,599,583 (GRCm39) splice site probably benign
R1381:Lrig1 UTSW 6 94,583,111 (GRCm39) missense probably benign 0.04
R1473:Lrig1 UTSW 6 94,584,294 (GRCm39) missense probably benign 0.16
R1498:Lrig1 UTSW 6 94,604,968 (GRCm39) missense possibly damaging 0.89
R1888:Lrig1 UTSW 6 94,631,859 (GRCm39) missense probably benign 0.03
R1888:Lrig1 UTSW 6 94,631,859 (GRCm39) missense probably benign 0.03
R2273:Lrig1 UTSW 6 94,585,124 (GRCm39) missense probably damaging 1.00
R2513:Lrig1 UTSW 6 94,594,347 (GRCm39) splice site probably null
R3001:Lrig1 UTSW 6 94,585,758 (GRCm39) missense probably damaging 1.00
R3002:Lrig1 UTSW 6 94,585,758 (GRCm39) missense probably damaging 1.00
R3732:Lrig1 UTSW 6 94,588,557 (GRCm39) missense possibly damaging 0.86
R3732:Lrig1 UTSW 6 94,588,557 (GRCm39) missense possibly damaging 0.86
R3733:Lrig1 UTSW 6 94,588,557 (GRCm39) missense possibly damaging 0.86
R3772:Lrig1 UTSW 6 94,582,798 (GRCm39) missense probably benign 0.00
R4089:Lrig1 UTSW 6 94,586,840 (GRCm39) missense possibly damaging 0.83
R4093:Lrig1 UTSW 6 94,590,559 (GRCm39) missense probably benign 0.10
R4095:Lrig1 UTSW 6 94,590,559 (GRCm39) missense probably benign 0.10
R4225:Lrig1 UTSW 6 94,599,639 (GRCm39) missense probably damaging 1.00
R4917:Lrig1 UTSW 6 94,586,700 (GRCm39) missense probably damaging 1.00
R4951:Lrig1 UTSW 6 94,640,959 (GRCm39) missense probably damaging 1.00
R4976:Lrig1 UTSW 6 94,602,043 (GRCm39) missense probably damaging 1.00
R5000:Lrig1 UTSW 6 94,588,430 (GRCm39) missense probably damaging 1.00
R5149:Lrig1 UTSW 6 94,605,025 (GRCm39) missense possibly damaging 0.93
R5732:Lrig1 UTSW 6 94,676,520 (GRCm39) nonsense probably null
R5988:Lrig1 UTSW 6 94,605,023 (GRCm39) missense probably damaging 0.99
R6064:Lrig1 UTSW 6 94,603,428 (GRCm39) missense probably damaging 1.00
R6292:Lrig1 UTSW 6 94,593,426 (GRCm39) missense probably damaging 1.00
R6723:Lrig1 UTSW 6 94,603,386 (GRCm39) missense probably damaging 1.00
R6815:Lrig1 UTSW 6 94,602,010 (GRCm39) missense probably damaging 1.00
R6889:Lrig1 UTSW 6 94,602,044 (GRCm39) missense probably benign 0.07
R6995:Lrig1 UTSW 6 94,588,610 (GRCm39) missense possibly damaging 0.95
R7404:Lrig1 UTSW 6 94,603,452 (GRCm39) missense probably damaging 1.00
R7487:Lrig1 UTSW 6 94,583,099 (GRCm39) missense probably benign
R7732:Lrig1 UTSW 6 94,603,358 (GRCm39) missense probably benign 0.05
R7915:Lrig1 UTSW 6 94,607,082 (GRCm39) critical splice donor site probably null
R8133:Lrig1 UTSW 6 94,588,610 (GRCm39) missense possibly damaging 0.95
R8768:Lrig1 UTSW 6 94,631,840 (GRCm39) missense possibly damaging 0.88
R9045:Lrig1 UTSW 6 94,585,688 (GRCm39) critical splice donor site probably null
R9227:Lrig1 UTSW 6 94,607,113 (GRCm39) missense probably damaging 1.00
Z1176:Lrig1 UTSW 6 94,586,007 (GRCm39) missense possibly damaging 0.50
Nature of Mutation
DNA sequencing using the SOLiD technique identified an A to G transition at position 2579 of the Lrig1 transcript, in exon 15 of 19 total exons. Two Lrig1 transcripts are displayed on Ensembl. The mutated nucleotide causes a threonine to alanine substitution at amino acid 707 of the encoded protein. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).
Protein Function and Prediction
Lrig1 encodes a 1091 amino acid protein with evidence at the transcript level, known as leucine-rich repeats and immunoglobulin-like domains protein 1 (LIG-1). The protein contains a signal peptide at amino acids 1-34, and a transmembrane domain at amino acids 797-817. The N-terminus of the protein is extracellular and contains 14 leucine-rich repeats (LRRs) and three immunoglobulin (Ig)-like  domains. The extracellular domain interacts with receptors of the epithelial growth factor receptor (EGFR) family. By similarity, the LIG-1 protein acts as a feedback negative regulator of signaling by receptor tyrosine kinases, through a mechanism that involves enhancement of receptor ubiquitination and accelerated intracellular degradation. Lrig1 mRNA is predominantly expressed in the brain and skin, with low expression levels in the thymus and heart (Uniprot P70193). Lrig1 mRNA is downregulated in psoriasis, and homozygous knockout mice for the Lrig1 gene develop psoriasiform epidermal hyperplasia.
 
The T707A change occurs in the third Ig-like domain, and is predicted to be benign by the PolyPhen program.
Posted On 2009-11-10