Incidental Mutation 'R6026:Lct'
ID 480012
Institutional Source Beutler Lab
Gene Symbol Lct
Ensembl Gene ENSMUSG00000026354
Gene Name lactase
Synonyms LPH, LOC226413, Lphl
MMRRC Submission 044198-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R6026 (G1)
Quality Score 225.009
Status Validated
Chromosome 1
Chromosomal Location 128212493-128256055 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 128227755 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Threonine at position 1246 (I1246T)
Ref Sequence ENSEMBL: ENSMUSP00000073190 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000073490]
AlphaFold F8VPT3
Predicted Effect probably benign
Transcript: ENSMUST00000073490
AA Change: I1246T

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000073190
Gene: ENSMUSG00000026354
AA Change: I1246T

DomainStartEndE-ValueType
Pfam:Glyco_hydro_1 76 226 1.6e-19 PFAM
low complexity region 322 340 N/A INTRINSIC
Pfam:Glyco_hydro_1 380 849 4.8e-169 PFAM
low complexity region 865 875 N/A INTRINSIC
Pfam:Glyco_hydro_1 902 1368 3.7e-181 PFAM
Pfam:Glyco_hydro_1 1377 1844 6.9e-183 PFAM
transmembrane domain 1885 1907 N/A INTRINSIC
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.6%
  • 10x: 97.9%
  • 20x: 93.5%
Validation Efficiency 97% (73/75)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene belongs to the glycosyl hydrolase 1 family of proteins. The encoded preproprotein is proteolytically processed to generate the mature enzyme. This enzyme is integral to the plasma membrane and has both phlorizin hydrolase activity and lactase activity. Mutations in this gene are associated with congenital lactase deficiency. Polymorphisms in this gene are associated with lactase persistence, in which intestinal lactase activity persists at childhood levels into adulthood. [provided by RefSeq, Jan 2016]
Allele List at MGI
Other mutations in this stock
Total: 74 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1810065E05Rik A G 11: 58,316,581 (GRCm39) D187G probably benign Het
4933421I07Rik A T 7: 42,095,708 (GRCm39) M180K probably benign Het
Aatk T C 11: 119,903,190 (GRCm39) H345R possibly damaging Het
Abcc8 T C 7: 45,816,424 (GRCm39) T239A probably benign Het
Abcf3 A G 16: 20,369,320 (GRCm39) E234G probably damaging Het
Actrt2 T C 4: 154,751,047 (GRCm39) D363G possibly damaging Het
Adam1a A T 5: 121,657,425 (GRCm39) C623S probably damaging Het
Afg3l2 G T 18: 67,554,329 (GRCm39) L458M probably damaging Het
Ash1l T C 3: 88,892,326 (GRCm39) Y1402H probably damaging Het
Barhl2 T A 5: 106,603,474 (GRCm39) K228N probably benign Het
Blvrb A G 7: 27,162,115 (GRCm39) H153R probably damaging Het
Capn9 A G 8: 125,332,601 (GRCm39) D480G probably damaging Het
Cct3 T C 3: 88,219,029 (GRCm39) I182T possibly damaging Het
Clasp2 A G 9: 113,740,646 (GRCm39) N1208D probably benign Het
Col26a1 A G 5: 136,876,354 (GRCm39) C89R probably damaging Het
Cops4 T A 5: 100,690,194 (GRCm39) probably benign Het
Cpox T A 16: 58,491,298 (GRCm39) W170R probably damaging Het
Ddx27 A G 2: 166,875,560 (GRCm39) K656E probably benign Het
Eif4e T C 3: 138,256,661 (GRCm39) I66T probably damaging Het
Ercc3 T C 18: 32,378,974 (GRCm39) probably null Het
Esp38 G A 17: 40,266,032 (GRCm39) C47Y probably damaging Het
Fancd2 T C 6: 113,528,731 (GRCm39) V380A possibly damaging Het
Fbxw7 T A 3: 84,859,948 (GRCm39) probably null Het
Fryl T G 5: 73,257,340 (GRCm39) R736S probably benign Het
Gad2 G A 2: 22,513,748 (GRCm39) V62M probably benign Het
Gigyf2 A G 1: 87,368,454 (GRCm39) T1045A probably damaging Het
Gm13090 T A 4: 151,175,157 (GRCm39) L78* probably null Het
Gm19410 G A 8: 36,279,580 (GRCm39) S1815N probably benign Het
Gm28051 A T 12: 102,686,444 (GRCm39) L72Q unknown Het
Gm44511 T C 6: 128,797,240 (GRCm39) T83A possibly damaging Het
Grk2 C T 19: 4,340,811 (GRCm39) V246I probably damaging Het
Grm7 C T 6: 111,478,500 (GRCm39) Q62* probably null Het
Gsdmc3 T A 15: 63,738,600 (GRCm39) E154V probably damaging Het
Gstz1 A C 12: 87,206,948 (GRCm39) Q114P probably damaging Het
Hax1 GTCATCATCATCATCATC GTCATCATCATCATCATCATC 3: 89,905,247 (GRCm39) probably benign Het
Hhip A T 8: 80,699,069 (GRCm39) C666S probably damaging Het
Hif1a A C 12: 73,979,055 (GRCm39) H193P probably damaging Het
Hyal2 A G 9: 107,449,398 (GRCm39) T385A probably benign Het
Ihh T C 1: 74,985,886 (GRCm39) T200A probably benign Het
Iqgap3 T A 3: 87,997,478 (GRCm39) V218E probably damaging Het
Lmo7 T C 14: 102,118,426 (GRCm39) V217A probably benign Het
Lrp1 C T 10: 127,409,272 (GRCm39) D1616N probably damaging Het
Lrrfip2 A T 9: 111,043,239 (GRCm39) T165S probably damaging Het
Morc2b A G 17: 33,356,957 (GRCm39) Y272H possibly damaging Het
Muc16 A G 9: 18,571,154 (GRCm39) M455T unknown Het
Ncapg2 A T 12: 116,406,641 (GRCm39) D939V possibly damaging Het
Ncbp3 T C 11: 72,958,548 (GRCm39) V236A probably benign Het
Obscn T A 11: 58,957,916 (GRCm39) T3595S probably damaging Het
Odf2l T C 3: 144,854,797 (GRCm39) S545P possibly damaging Het
Or3a1 T A 11: 74,225,914 (GRCm39) I48F probably damaging Het
Or8b36 ATTGCTGTTT ATTGCTGTTTGCTGTTT 9: 37,937,836 (GRCm39) probably null Het
Pdzrn3 A C 6: 101,339,105 (GRCm39) C269G probably benign Het
Pear1 T A 3: 87,664,220 (GRCm39) N278Y probably damaging Het
Phb1 C T 11: 95,562,245 (GRCm39) R41* probably null Het
Pikfyve T C 1: 65,311,856 (GRCm39) V2031A probably damaging Het
Plxna2 A G 1: 194,482,122 (GRCm39) I1465V probably damaging Het
Ppp6r2 A G 15: 89,167,113 (GRCm39) N776S probably benign Het
Prkce A T 17: 86,800,658 (GRCm39) E358V probably benign Het
Prl5a1 A T 13: 28,335,247 (GRCm39) I219F probably benign Het
Prss3 T C 6: 41,354,488 (GRCm39) probably null Het
Ptprc A T 1: 137,998,987 (GRCm39) M858K probably damaging Het
Retreg3 T C 11: 100,997,226 (GRCm39) T85A probably damaging Het
Rfc2 T A 5: 134,624,185 (GRCm39) C265S probably damaging Het
Smarcd1 G T 15: 99,603,619 (GRCm39) V256L probably damaging Het
Stat5a T C 11: 100,771,142 (GRCm39) F574L probably damaging Het
Tcirg1 T C 19: 3,947,487 (GRCm39) H624R probably benign Het
Tcstv1a C A 13: 120,355,987 (GRCm39) probably benign Het
Tenm2 C T 11: 35,963,556 (GRCm39) probably null Het
Tomm40 A G 7: 19,444,889 (GRCm39) V164A probably benign Het
Txnl4a T C 18: 80,250,482 (GRCm39) V26A probably damaging Het
Ugt2a3 A T 5: 87,484,336 (GRCm39) F229L probably benign Het
Utp20 T C 10: 88,604,541 (GRCm39) T1785A probably benign Het
Vmn1r22 T A 6: 57,877,390 (GRCm39) I196L probably benign Het
Zfp652 T G 11: 95,640,788 (GRCm39) C238G possibly damaging Het
Other mutations in Lct
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00777:Lct APN 1 128,215,293 (GRCm39) missense probably benign 0.09
IGL00970:Lct APN 1 128,231,805 (GRCm39) missense probably damaging 1.00
IGL01022:Lct APN 1 128,228,596 (GRCm39) missense probably benign
IGL01878:Lct APN 1 128,222,003 (GRCm39) missense probably damaging 1.00
IGL01892:Lct APN 1 128,235,342 (GRCm39) missense probably damaging 1.00
IGL02307:Lct APN 1 128,214,327 (GRCm39) missense possibly damaging 0.70
IGL02434:Lct APN 1 128,231,527 (GRCm39) missense probably damaging 0.97
IGL02559:Lct APN 1 128,222,003 (GRCm39) missense probably damaging 1.00
IGL02623:Lct APN 1 128,235,988 (GRCm39) missense probably benign 0.01
IGL02818:Lct APN 1 128,227,905 (GRCm39) missense probably damaging 1.00
IGL02949:Lct APN 1 128,240,869 (GRCm39) missense probably benign 0.26
IGL02951:Lct APN 1 128,227,948 (GRCm39) missense probably damaging 1.00
IGL03087:Lct APN 1 128,228,112 (GRCm39) missense possibly damaging 0.81
IGL03227:Lct APN 1 128,255,426 (GRCm39) missense probably benign 0.09
ANU18:Lct UTSW 1 128,235,784 (GRCm39) nonsense probably null
R0071:Lct UTSW 1 128,219,755 (GRCm39) nonsense probably null
R0071:Lct UTSW 1 128,219,755 (GRCm39) nonsense probably null
R0135:Lct UTSW 1 128,212,860 (GRCm39) missense probably damaging 0.98
R0145:Lct UTSW 1 128,255,632 (GRCm39) missense probably benign 0.00
R0179:Lct UTSW 1 128,255,422 (GRCm39) missense probably benign
R0331:Lct UTSW 1 128,226,479 (GRCm39) splice site probably benign
R0366:Lct UTSW 1 128,214,199 (GRCm39) missense probably benign 0.03
R0399:Lct UTSW 1 128,228,262 (GRCm39) missense probably damaging 1.00
R0492:Lct UTSW 1 128,228,319 (GRCm39) missense probably damaging 1.00
R0548:Lct UTSW 1 128,212,932 (GRCm39) missense probably damaging 1.00
R0691:Lct UTSW 1 128,235,971 (GRCm39) missense probably benign 0.00
R0755:Lct UTSW 1 128,221,872 (GRCm39) missense possibly damaging 0.46
R0839:Lct UTSW 1 128,214,346 (GRCm39) missense probably benign 0.00
R1128:Lct UTSW 1 128,229,046 (GRCm39) missense probably damaging 0.99
R1135:Lct UTSW 1 128,221,861 (GRCm39) critical splice donor site probably null
R1321:Lct UTSW 1 128,227,759 (GRCm39) missense probably benign
R1448:Lct UTSW 1 128,235,559 (GRCm39) missense probably damaging 0.99
R1450:Lct UTSW 1 128,235,640 (GRCm39) missense probably damaging 1.00
R1572:Lct UTSW 1 128,221,932 (GRCm39) missense probably benign 0.25
R1582:Lct UTSW 1 128,228,299 (GRCm39) missense probably damaging 1.00
R1668:Lct UTSW 1 128,215,459 (GRCm39) splice site probably null
R1757:Lct UTSW 1 128,228,994 (GRCm39) missense probably damaging 1.00
R1775:Lct UTSW 1 128,228,038 (GRCm39) missense probably damaging 1.00
R1792:Lct UTSW 1 128,255,679 (GRCm39) missense possibly damaging 0.54
R1815:Lct UTSW 1 128,227,896 (GRCm39) missense probably damaging 1.00
R1932:Lct UTSW 1 128,221,898 (GRCm39) missense probably damaging 1.00
R2325:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R2381:Lct UTSW 1 128,231,858 (GRCm39) nonsense probably null
R3001:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R3002:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R3003:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R3011:Lct UTSW 1 128,229,109 (GRCm39) missense possibly damaging 0.74
R3082:Lct UTSW 1 128,215,345 (GRCm39) missense probably damaging 1.00
R3683:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R3684:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R3726:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R3886:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R3887:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R3888:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R4019:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R4027:Lct UTSW 1 128,212,918 (GRCm39) missense probably benign 0.00
R4226:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R4409:Lct UTSW 1 128,231,963 (GRCm39) missense probably damaging 1.00
R4514:Lct UTSW 1 128,228,251 (GRCm39) missense probably benign
R4570:Lct UTSW 1 128,227,641 (GRCm39) missense probably benign 0.01
R4776:Lct UTSW 1 128,228,124 (GRCm39) missense probably damaging 0.99
R5001:Lct UTSW 1 128,235,978 (GRCm39) missense probably damaging 0.96
R5021:Lct UTSW 1 128,228,302 (GRCm39) missense probably benign 0.38
R5318:Lct UTSW 1 128,232,109 (GRCm39) missense probably damaging 1.00
R5330:Lct UTSW 1 128,226,266 (GRCm39) missense probably benign 0.06
R5385:Lct UTSW 1 128,239,354 (GRCm39) missense possibly damaging 0.63
R5499:Lct UTSW 1 128,214,414 (GRCm39) missense probably damaging 1.00
R5508:Lct UTSW 1 128,221,868 (GRCm39) missense probably damaging 1.00
R5642:Lct UTSW 1 128,222,969 (GRCm39) missense probably damaging 1.00
R5724:Lct UTSW 1 128,228,073 (GRCm39) missense probably benign
R6044:Lct UTSW 1 128,235,717 (GRCm39) missense possibly damaging 0.95
R6175:Lct UTSW 1 128,255,451 (GRCm39) missense probably damaging 1.00
R6277:Lct UTSW 1 128,231,974 (GRCm39) missense probably benign 0.01
R6412:Lct UTSW 1 128,255,455 (GRCm39) missense probably benign 0.00
R6480:Lct UTSW 1 128,222,057 (GRCm39) missense probably damaging 1.00
R6526:Lct UTSW 1 128,228,215 (GRCm39) missense probably benign 0.05
R6620:Lct UTSW 1 128,222,809 (GRCm39) critical splice donor site probably null
R7214:Lct UTSW 1 128,228,197 (GRCm39) missense probably benign 0.00
R7308:Lct UTSW 1 128,246,824 (GRCm39) missense probably benign 0.00
R7577:Lct UTSW 1 128,228,469 (GRCm39) missense probably damaging 0.99
R7626:Lct UTSW 1 128,212,932 (GRCm39) missense probably damaging 1.00
R7737:Lct UTSW 1 128,226,430 (GRCm39) missense probably benign 0.12
R7901:Lct UTSW 1 128,216,722 (GRCm39) missense probably benign 0.44
R8033:Lct UTSW 1 128,212,996 (GRCm39) missense probably benign 0.03
R8373:Lct UTSW 1 128,231,577 (GRCm39) missense probably damaging 1.00
R8504:Lct UTSW 1 128,215,306 (GRCm39) missense probably damaging 1.00
R8751:Lct UTSW 1 128,221,534 (GRCm39) missense probably benign 0.18
R8781:Lct UTSW 1 128,215,261 (GRCm39) missense probably damaging 1.00
R8797:Lct UTSW 1 128,231,684 (GRCm39) missense possibly damaging 0.77
R8926:Lct UTSW 1 128,228,148 (GRCm39) missense probably damaging 1.00
R8949:Lct UTSW 1 128,221,929 (GRCm39) missense probably damaging 1.00
R8992:Lct UTSW 1 128,228,299 (GRCm39) missense probably damaging 1.00
R9138:Lct UTSW 1 128,227,894 (GRCm39) missense probably benign 0.03
R9260:Lct UTSW 1 128,227,704 (GRCm39) nonsense probably null
R9416:Lct UTSW 1 128,228,329 (GRCm39) missense possibly damaging 0.74
R9531:Lct UTSW 1 128,235,598 (GRCm39) missense probably benign 0.00
X0052:Lct UTSW 1 128,235,367 (GRCm39) missense probably damaging 1.00
YA93:Lct UTSW 1 128,229,057 (GRCm39) missense probably damaging 1.00
Z1176:Lct UTSW 1 128,215,348 (GRCm39) nonsense probably null
Predicted Primers PCR Primer
(F):5'- ACACATGATTTATGGGAGGGC -3'
(R):5'- TGCCCAGCTTCACAGAAGAG -3'

Sequencing Primer
(F):5'- GGAGACGAACTGAACTTCCATGTAC -3'
(R):5'- CCCAGCTTCACAGAAGAGGAGAAG -3'
Posted On 2017-06-26