Incidental Mutation 'G5030:Adam18'
ID 499
Institutional Source Beutler Lab
Gene Symbol Adam18
Ensembl Gene ENSMUSG00000031552
Gene Name a disintegrin and metallopeptidase domain 18
Synonyms Dtgn3, Adam27
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # G5030 (G3) of strain 560
Quality Score
Status Validated
Chromosome 8
Chromosomal Location 25092262-25164771 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to G at 25141872 bp (GRCm39)
Zygosity Homozygous
Amino Acid Change Leucine to Phenylalanine at position 232 (L232F)
Ref Sequence ENSEMBL: ENSMUSP00000033957 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000033957] [ENSMUST00000173833]
AlphaFold Q9R157
Predicted Effect probably benign
Transcript: ENSMUST00000033957
AA Change: L232F

PolyPhen 2 Score 0.243 (Sensitivity: 0.91; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000033957
Gene: ENSMUSG00000031552
AA Change: L232F

DomainStartEndE-ValueType
Pfam:Pep_M12B_propep 15 140 1.7e-25 PFAM
Pfam:Reprolysin 180 377 1.1e-57 PFAM
DISIN 396 474 1.03e-35 SMART
ACR 475 613 1.12e-51 SMART
transmembrane domain 684 703 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000173833
AA Change: L232F

PolyPhen 2 Score 0.053 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000133378
Gene: ENSMUSG00000031552
AA Change: L232F

DomainStartEndE-ValueType
Pfam:Pep_M12B_propep 15 140 9.5e-35 PFAM
Pfam:Reprolysin 180 378 7.7e-56 PFAM
DISIN 396 474 1.03e-35 SMART
ACR 475 613 1.12e-51 SMART
Meta Mutation Damage Score 0.3016 question?
Coding Region Coverage
  • 1x: 81.1%
  • 3x: 60.2%
Het Detection Efficiency 35.6%
Validation Efficiency 87% (206/237)
MGI Phenotype FUNCTION: This gene encodes a member of a disintegrin and metalloprotease (ADAM) family of endoproteases that play important roles in various biological processes including cell signaling, adhesion and migration. This gene is expressed in a regulated fashion during early stages of spermatogenesis. The encoded preproprotein undergoes proteolytic processing to generate a mature, functional protein. This gene is located in a cluster of related ADAM genes on chromosome 8. [provided by RefSeq, May 2016]
PHENOTYPE: Homozygous mutant mice exhibit enhanced motor coordination during inverted screen testing when compared with that of controls. [provided by MGI curators]
Allele List at MGI

All alleles(1) : Targeted, other(1)

Other mutations in this stock
Total: 30 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca8a T A 11: 109,961,165 (GRCm39) I585F probably damaging Het
Atp13a4 A G 16: 29,274,306 (GRCm39) I385T probably damaging Homo
Ccdc17 T A 4: 116,455,699 (GRCm39) S277T probably benign Het
Ccng1 A G 11: 40,644,629 (GRCm39) probably benign Het
Ces1f T C 8: 94,000,847 (GRCm39) D99G probably benign Het
Clec16a G A 16: 10,389,425 (GRCm39) R187Q probably damaging Homo
Cryl1 C T 14: 57,579,595 (GRCm39) probably benign Het
Cryzl2 C T 1: 157,292,580 (GRCm39) Q48* probably null Het
Dtx4 A G 19: 12,446,943 (GRCm39) L583P probably benign Het
Ephx4 A T 5: 107,577,693 (GRCm39) D339V probably damaging Het
Eri2 A T 7: 119,385,601 (GRCm39) V300E possibly damaging Het
F3 T A 3: 121,518,648 (GRCm39) N37K probably damaging Homo
Fpr1 A T 17: 18,097,068 (GRCm39) L307H probably damaging Het
Fv1 T A 4: 147,953,618 (GRCm39) N61K possibly damaging Het
Gm5548 T C 3: 112,961,512 (GRCm39) noncoding transcript Homo
Il1r1 A G 1: 40,352,323 (GRCm39) K498E possibly damaging Homo
Myh11 T C 16: 14,068,443 (GRCm39) I192M probably damaging Homo
Nckap5 T C 1: 125,953,591 (GRCm39) K923R probably damaging Het
Nmbr A T 10: 14,642,747 (GRCm39) Y102F possibly damaging Het
Or6c75 A G 10: 129,337,406 (GRCm39) T218A probably benign Homo
Pde1a C T 2: 79,718,180 (GRCm39) probably benign Het
Pex6 T C 17: 47,026,382 (GRCm39) probably benign Het
Rtn2 T C 7: 19,027,099 (GRCm39) S305P probably damaging Homo
Saal1 G A 7: 46,342,207 (GRCm39) T412I probably damaging Homo
Slc46a2 A T 4: 59,913,867 (GRCm39) I352N probably damaging Het
Trim37 A T 11: 87,033,967 (GRCm39) H99L probably damaging Het
Tubgcp4 C T 2: 121,014,815 (GRCm39) R242C probably damaging Het
Twf2 C A 9: 106,084,141 (GRCm39) L27I possibly damaging Het
Usp40 A T 1: 87,921,941 (GRCm39) H307Q probably damaging Het
Zfhx3 T G 8: 109,678,091 (GRCm39) V3047G possibly damaging Het
Other mutations in Adam18
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00470:Adam18 APN 8 25,118,149 (GRCm39) missense probably damaging 1.00
IGL01649:Adam18 APN 8 25,104,912 (GRCm39) missense possibly damaging 0.82
IGL02212:Adam18 APN 8 25,127,195 (GRCm39) missense probably benign 0.02
IGL02455:Adam18 APN 8 25,141,864 (GRCm39) missense probably damaging 0.96
IGL02525:Adam18 APN 8 25,131,783 (GRCm39) splice site probably benign
IGL02525:Adam18 APN 8 25,101,060 (GRCm39) missense probably benign 0.00
IGL02966:Adam18 APN 8 25,101,165 (GRCm39) splice site probably benign
IGL03136:Adam18 APN 8 25,131,852 (GRCm39) missense probably damaging 1.00
R0135:Adam18 UTSW 8 25,155,558 (GRCm39) missense possibly damaging 0.71
R0280:Adam18 UTSW 8 25,164,070 (GRCm39) missense probably benign 0.06
R0389:Adam18 UTSW 8 25,119,653 (GRCm39) splice site probably null
R0390:Adam18 UTSW 8 25,164,070 (GRCm39) missense probably benign 0.06
R0443:Adam18 UTSW 8 25,119,653 (GRCm39) splice site probably null
R0479:Adam18 UTSW 8 25,141,838 (GRCm39) missense probably benign
R0578:Adam18 UTSW 8 25,131,863 (GRCm39) missense possibly damaging 0.82
R0645:Adam18 UTSW 8 25,162,136 (GRCm39) nonsense probably null
R0881:Adam18 UTSW 8 25,162,159 (GRCm39) splice site probably benign
R0885:Adam18 UTSW 8 25,141,802 (GRCm39) missense probably damaging 1.00
R0973:Adam18 UTSW 8 25,137,869 (GRCm39) missense probably benign 0.01
R0973:Adam18 UTSW 8 25,137,869 (GRCm39) missense probably benign 0.01
R0974:Adam18 UTSW 8 25,137,869 (GRCm39) missense probably benign 0.01
R1005:Adam18 UTSW 8 25,155,530 (GRCm39) missense probably benign 0.05
R1356:Adam18 UTSW 8 25,158,611 (GRCm39) splice site probably benign
R1510:Adam18 UTSW 8 25,115,847 (GRCm39) missense probably benign 0.01
R1552:Adam18 UTSW 8 25,136,377 (GRCm39) missense probably benign
R1568:Adam18 UTSW 8 25,137,799 (GRCm39) splice site probably null
R1639:Adam18 UTSW 8 25,142,168 (GRCm39) missense probably benign 0.00
R1968:Adam18 UTSW 8 25,136,463 (GRCm39) missense probably benign 0.32
R2029:Adam18 UTSW 8 25,140,893 (GRCm39) missense probably damaging 1.00
R2058:Adam18 UTSW 8 25,162,082 (GRCm39) splice site probably benign
R2211:Adam18 UTSW 8 25,118,171 (GRCm39) missense probably damaging 0.96
R2237:Adam18 UTSW 8 25,136,303 (GRCm39) missense probably benign 0.01
R2238:Adam18 UTSW 8 25,136,303 (GRCm39) missense probably benign 0.01
R2239:Adam18 UTSW 8 25,136,303 (GRCm39) missense probably benign 0.01
R2518:Adam18 UTSW 8 25,127,157 (GRCm39) missense probably damaging 1.00
R3122:Adam18 UTSW 8 25,118,248 (GRCm39) missense possibly damaging 0.74
R3426:Adam18 UTSW 8 25,157,620 (GRCm39) missense probably damaging 1.00
R3428:Adam18 UTSW 8 25,157,620 (GRCm39) missense probably damaging 1.00
R3967:Adam18 UTSW 8 25,119,726 (GRCm39) missense probably benign 0.12
R4833:Adam18 UTSW 8 25,164,117 (GRCm39) missense probably benign 0.01
R4965:Adam18 UTSW 8 25,131,827 (GRCm39) missense probably damaging 1.00
R5249:Adam18 UTSW 8 25,115,868 (GRCm39) missense probably benign 0.00
R5534:Adam18 UTSW 8 25,155,530 (GRCm39) missense probably benign 0.05
R5920:Adam18 UTSW 8 25,164,091 (GRCm39) missense probably damaging 1.00
R6329:Adam18 UTSW 8 25,104,843 (GRCm39) missense probably damaging 1.00
R6450:Adam18 UTSW 8 25,119,691 (GRCm39) missense probably benign 0.05
R6479:Adam18 UTSW 8 25,119,681 (GRCm39) missense probably benign 0.29
R6516:Adam18 UTSW 8 25,164,703 (GRCm39) missense probably damaging 1.00
R6603:Adam18 UTSW 8 25,155,518 (GRCm39) missense possibly damaging 0.63
R7194:Adam18 UTSW 8 25,141,868 (GRCm39) missense possibly damaging 0.67
R7226:Adam18 UTSW 8 25,137,824 (GRCm39) missense probably damaging 1.00
R7266:Adam18 UTSW 8 25,157,639 (GRCm39) missense probably benign 0.00
R7397:Adam18 UTSW 8 25,136,321 (GRCm39) missense possibly damaging 0.48
R7575:Adam18 UTSW 8 25,115,873 (GRCm39) missense possibly damaging 0.50
R7786:Adam18 UTSW 8 25,101,134 (GRCm39) missense probably benign 0.00
R7872:Adam18 UTSW 8 25,101,116 (GRCm39) missense probably benign 0.00
R8069:Adam18 UTSW 8 25,118,246 (GRCm39) missense possibly damaging 0.96
R8411:Adam18 UTSW 8 25,142,143 (GRCm39) missense probably damaging 1.00
R8713:Adam18 UTSW 8 25,142,189 (GRCm39) missense probably benign 0.22
R8785:Adam18 UTSW 8 25,140,911 (GRCm39) missense probably damaging 0.97
R8803:Adam18 UTSW 8 25,137,878 (GRCm39) missense probably benign 0.02
R8882:Adam18 UTSW 8 25,136,438 (GRCm39) missense probably benign 0.25
R8944:Adam18 UTSW 8 25,164,703 (GRCm39) missense probably damaging 1.00
R9000:Adam18 UTSW 8 25,127,162 (GRCm39) missense probably benign 0.27
R9184:Adam18 UTSW 8 25,137,847 (GRCm39) missense probably benign 0.22
R9258:Adam18 UTSW 8 25,158,574 (GRCm39) missense probably benign 0.05
R9306:Adam18 UTSW 8 25,136,420 (GRCm39) missense possibly damaging 0.74
R9377:Adam18 UTSW 8 25,104,859 (GRCm39) nonsense probably null
R9472:Adam18 UTSW 8 25,127,248 (GRCm39) missense probably benign 0.04
R9476:Adam18 UTSW 8 25,115,807 (GRCm39) missense probably benign 0.18
R9508:Adam18 UTSW 8 25,143,778 (GRCm39) missense possibly damaging 0.88
R9567:Adam18 UTSW 8 25,118,210 (GRCm39) missense probably benign 0.25
R9603:Adam18 UTSW 8 25,118,147 (GRCm39) missense possibly damaging 0.48
Nature of Mutation
DNA sequencing using the SOLiD technique identified a G to C transversion at position 754 of the Adam18 transcript in exon 9 of 20 total exons. Two transcripts of the Adam18 gene are displayed on Ensembl and Vega. The mutated nucleotide causes a leucine to phenylalanine substitution at amino acid 232 of the encoded protein. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).
Protein Function and Prediction

The Adam18 gene encodes a 763 amino acid disintegrin and metalloproteinase domain-containing protein 18 (Uniprot Q9R157). ADAMs are a family of cell surface proteins with a domain structure composed of a signal sequence, a prodomain with a cysteine switch, a metalloproteinase-like domain, a disintegrin-like domain, a cysteine-rich domain, a transmembrane domain, and a C-terminal cytoplasmic domain. These proteins function as proteases to cleave a variety of substrates, but ADAM18 seems to be non-catalytic as its zinc-binding motif contains a variant amino acid. ADAM18 is expressed specifically in the testis, and may be involved in spermatogenesis and fertilization. A tripeptide motif (ECD) within the disintegrin-like domain could be involved in the binding to egg integrin receptor and thus could mediate sperm/egg binding.

The L232F change is located in the peptidase domain, and is predicted to be possibly damaging by the PolyPhen program (see report).
Posted On 2010-10-26