Incidental Mutation 'R4835:Mmp20'
ID373162
Institutional Source Beutler Lab
Gene Symbol Mmp20
Ensembl Gene ENSMUSG00000018620
Gene Namematrix metallopeptidase 20 (enamelysin)
Synonyms
MMRRC Submission 042450-MU
Accession Numbers
Is this an essential gene? Probably non essential (E-score: 0.069) question?
Stock #R4835 (G1)
Quality Score225
Status Validated
Chromosome9
Chromosomal Location7628231-7674979 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 7645299 bp
ZygosityHeterozygous
Amino Acid Change Histidine to Glutamine at position 283 (H283Q)
Ref Sequence ENSEMBL: ENSMUSP00000034487 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000034487]
Predicted Effect probably benign
Transcript: ENSMUST00000034487
AA Change: H283Q

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000034487
Gene: ENSMUSG00000018620
AA Change: H283Q

DomainStartEndE-ValueType
signal peptide 1 21 N/A INTRINSIC
Pfam:PG_binding_1 34 94 2.3e-9 PFAM
ZnMc 112 271 6.89e-67 SMART
HX 301 344 7.07e-6 SMART
HX 346 388 1.27e-7 SMART
HX 393 440 3.76e-10 SMART
HX 442 482 6.8e-8 SMART
Meta Mutation Damage Score 0.118 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.8%
  • 20x: 93.8%
Validation Efficiency 98% (96/98)
MGI Phenotype FUNCTION: This gene encodes a member of the matrix metalloproteinase family of zinc-dependent endopeptidases capable of degrading extracellular matrix proteins. This gene is expressed specifically in the ameloblasts and odontoblasts, and the encoded protein is an inactive zymogen that requires proteolytic removal of a N-terminal propeptide to become enzymatically active. Mice lacking the encoded protein display an amelogenesis imperfecta phenotype. [provided by RefSeq, Oct 2015]
PHENOTYPE: Mice homozygous for a knockout allele exhibit a severe and profound tooth phenotype that includes altered amelogenin processing, enamel that delaminates from dentin, a hypoplastic enamel, a disorganized prism pattern, and a progressively deteriorating enamel morphology. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 91 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930432E11Rik A T 7: 29,574,901 noncoding transcript Het
4933434E20Rik A G 3: 90,063,209 N17D probably benign Het
A1bg T C 15: 60,920,251 D176G probably benign Het
Abcg5 A T 17: 84,658,648 M428K possibly damaging Het
Adam1a A T 5: 121,519,689 C514S probably damaging Het
Angptl3 A G 4: 99,037,412 Q325R probably benign Het
Ankrd26 C T 6: 118,548,850 W378* probably null Het
Apob T C 12: 8,015,391 V4087A possibly damaging Het
Auts2 A G 5: 131,466,093 I117T probably damaging Het
AW146154 T A 7: 41,480,468 E408V probably damaging Het
Bicd1 A T 6: 149,484,090 N107I probably benign Het
Blm T C 7: 80,509,546 S281G probably benign Het
Btaf1 T A 19: 37,002,458 D1542E probably benign Het
C2cd2l A G 9: 44,315,145 probably null Het
Capn8 C A 1: 182,604,551 N362K probably damaging Het
Ccdc14 T G 16: 34,705,038 S186A probably damaging Het
Cdca4 A G 12: 112,821,547 L187P probably damaging Het
Chil6 T A 3: 106,405,974 K20* probably null Het
Cmss1 A T 16: 57,316,182 L109* probably null Het
Cmtm6 G T 9: 114,731,342 W36L probably benign Het
Cnksr3 T G 10: 7,160,757 I35L possibly damaging Het
Col4a2 G T 8: 11,423,570 G534* probably null Het
Col5a1 T G 2: 28,025,644 V180G probably damaging Het
Ctnna3 T C 10: 63,581,944 F154L probably benign Het
Fabp7 G A 10: 57,785,580 V50M possibly damaging Het
Fam170a T A 18: 50,281,983 V232D probably damaging Het
Fam186a T G 15: 99,945,808 T852P unknown Het
Fam20a T C 11: 109,673,563 I455V probably benign Het
Fbxl6 C T 15: 76,536,804 V324M probably damaging Het
Galnt18 T C 7: 111,779,523 T9A probably damaging Het
Golgb1 T A 16: 36,891,407 M191K possibly damaging Het
Gpld1 A G 13: 24,982,716 T650A probably benign Het
Gprc5d A G 6: 135,116,517 F131L probably benign Het
H2afv C T 11: 6,439,437 G7E unknown Het
Haus4 A T 14: 54,545,835 probably null Het
Helq A G 5: 100,774,163 I725T possibly damaging Het
Igsf23 T A 7: 19,941,830 D117V possibly damaging Het
Kiz A T 2: 146,942,088 S514C probably damaging Het
Klhl6 A T 16: 19,957,033 N258K probably benign Het
Krt72 G C 15: 101,781,073 probably null Het
Large1 A T 8: 73,048,347 I245N probably damaging Het
Lrrc31 T C 3: 30,679,157 I469M probably damaging Het
Lypd4 T A 7: 24,866,696 I68F probably benign Het
Mast1 A G 8: 84,923,779 S442P probably damaging Het
Mrps5 G A 2: 127,603,707 V385M possibly damaging Het
Ms4a15 T C 19: 10,979,226 K241E possibly damaging Het
Myt1 A G 2: 181,797,462 E259G probably damaging Het
Myt1l C A 12: 29,895,305 T1023K unknown Het
Ncapd3 T C 9: 27,086,046 L1221P probably damaging Het
Ncoa6 A G 2: 155,407,133 V1417A possibly damaging Het
Nmnat1 A G 4: 149,473,345 V80A possibly damaging Het
Nwd2 A G 5: 63,807,846 E1591G probably benign Het
Olfr1057 A G 2: 86,374,509 L301S possibly damaging Het
Olfr455 A G 6: 42,538,836 F62S probably damaging Het
Osbpl1a A T 18: 12,768,536 probably null Het
Papln T C 12: 83,774,420 I204T probably damaging Het
Phf1 A G 17: 26,934,678 T97A probably benign Het
Plxnb1 A G 9: 109,105,374 D890G probably damaging Het
Ppp1r12b G T 1: 134,955,733 A17E probably benign Het
Ptgir A G 7: 16,906,869 M29V possibly damaging Het
Rbp2 G A 9: 98,507,823 C96Y probably damaging Het
Rgmb A T 17: 15,807,362 M365K possibly damaging Het
Ric1 A G 19: 29,595,536 N792S possibly damaging Het
Ruvbl1 T C 6: 88,497,229 Y405H possibly damaging Het
Scaf4 A G 16: 90,250,307 M394T unknown Het
Siglech T A 7: 55,768,429 C48* probably null Het
Skiv2l A G 17: 34,842,921 V695A possibly damaging Het
Slc2a5 A G 4: 150,140,005 T320A probably benign Het
Slc6a7 T C 18: 61,002,205 Y417C probably benign Het
Sox21 A G 14: 118,234,924 C238R possibly damaging Het
Tbata A T 10: 61,183,353 K109N probably damaging Het
Tecpr2 T G 12: 110,954,730 S1246A probably benign Het
Tekt3 A G 11: 63,081,259 D247G probably benign Het
Tenm3 A T 8: 48,313,236 probably null Het
Thada A T 17: 84,441,104 probably null Het
Tpcn2 C T 7: 145,272,351 G204R probably damaging Het
Tpm2 T C 4: 43,519,220 probably null Het
Trbv24 T C 6: 41,218,092 probably benign Het
Tyw1 A G 5: 130,277,058 R341G probably benign Het
Vmn1r183 T G 7: 24,055,139 N122K probably benign Het
Vmn2r61 T A 7: 42,267,035 H357Q possibly damaging Het
Vps13b C T 15: 35,869,372 T2674I probably damaging Het
Vps13b T C 15: 35,910,293 L3401P probably benign Het
Vps16 T G 2: 130,438,300 probably benign Het
Vrtn T A 12: 84,649,694 I406N probably damaging Het
Vwa8 A T 14: 78,934,613 Y278F probably benign Het
Washc4 A T 10: 83,579,512 I789F possibly damaging Het
Zbtb20 C A 16: 43,618,398 T627K probably damaging Het
Zfyve16 A T 13: 92,522,185 I406K probably benign Het
Zfyve9 A C 4: 108,717,998 S629A possibly damaging Het
Zpld1 A T 16: 55,248,255 N164K probably damaging Het
Other mutations in Mmp20
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01490:Mmp20 APN 9 7628329 missense probably benign
IGL01634:Mmp20 APN 9 7635148 nonsense probably null
IGL01682:Mmp20 APN 9 7671375 missense probably benign 0.01
IGL01997:Mmp20 APN 9 7639260 missense probably benign 0.03
IGL02211:Mmp20 APN 9 7655070 missense probably damaging 1.00
IGL02496:Mmp20 APN 9 7654041 missense probably damaging 1.00
IGL02902:Mmp20 APN 9 7654170 splice site probably null
IGL03340:Mmp20 APN 9 7643994 missense probably damaging 1.00
PIT4519001:Mmp20 UTSW 9 7628301 missense probably benign 0.00
R0082:Mmp20 UTSW 9 7642807 missense probably benign 0.00
R0480:Mmp20 UTSW 9 7645373 missense probably damaging 1.00
R1449:Mmp20 UTSW 9 7642768 missense probably damaging 1.00
R1994:Mmp20 UTSW 9 7645292 missense probably benign 0.00
R4343:Mmp20 UTSW 9 7628345 frame shift probably null
R4825:Mmp20 UTSW 9 7654120 missense probably damaging 1.00
R4836:Mmp20 UTSW 9 7644026 missense possibly damaging 0.89
R5488:Mmp20 UTSW 9 7643957 critical splice acceptor site probably null
R5489:Mmp20 UTSW 9 7643957 critical splice acceptor site probably null
R5759:Mmp20 UTSW 9 7628377 critical splice donor site probably null
R5880:Mmp20 UTSW 9 7655001 missense probably benign 0.20
R6029:Mmp20 UTSW 9 7639301 missense probably benign
R6510:Mmp20 UTSW 9 7643966 missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- GCAGGTATTACTTTAGTCTCACAGAG -3'
(R):5'- TCTTAGTCACTGAGGCAATGG -3'

Sequencing Primer
(F):5'- TTACAGTTGATGTAGCCAAGGC -3'
(R):5'- TCACTGAGGCAATGGCATTG -3'
Posted On2016-03-01