Incidental Mutation 'R3887:Lct'
ID 309677
Institutional Source Beutler Lab
Gene Symbol Lct
Ensembl Gene ENSMUSG00000026354
Gene Name lactase
Synonyms LPH, LOC226413, Lphl
MMRRC Submission 040799-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R3887 (G1)
Quality Score 225
Status Validated
Chromosome 1
Chromosomal Location 128212493-128256055 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 128231963 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Methionine to Valine at position 629 (M629V)
Ref Sequence ENSEMBL: ENSMUSP00000073190 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000073490]
AlphaFold F8VPT3
Predicted Effect probably damaging
Transcript: ENSMUST00000073490
AA Change: M629V

PolyPhen 2 Score 0.995 (Sensitivity: 0.68; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000073190
Gene: ENSMUSG00000026354
AA Change: M629V

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 0.3962 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.4%
  • 20x: 95.4%
Validation Efficiency 100% (40/40)
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: 37 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4933407L21Rik T A 1: 85,868,273 (GRCm39) probably null Het
Ankdd1a C A 9: 65,409,530 (GRCm39) G469W probably damaging Het
Ano6 A C 15: 95,792,330 (GRCm39) T65P possibly damaging Het
Arhgap26 G A 18: 39,363,019 (GRCm39) probably null Het
Ccdc175 A G 12: 72,182,822 (GRCm39) I399T possibly damaging Het
Ceacam14 T A 7: 17,548,063 (GRCm39) V51D probably damaging Het
Cerk A T 15: 86,033,532 (GRCm39) I297N possibly damaging Het
Cps1 C A 1: 67,204,659 (GRCm39) T493K possibly damaging Het
Dmxl1 T A 18: 50,011,326 (GRCm39) M1161K probably damaging Het
Efcab14 T A 4: 115,595,857 (GRCm39) M1K probably null Het
Etl4 C T 2: 20,534,772 (GRCm39) Q76* probably null Het
Fmc1 T C 6: 38,516,223 (GRCm39) S90P probably benign Het
Fn1 T C 1: 71,679,465 (GRCm39) Y511C probably damaging Het
Foxd2 T C 4: 114,765,483 (GRCm39) H179R unknown Het
Hk2 C T 6: 82,711,942 (GRCm39) D548N possibly damaging Het
Lrp5 G A 19: 3,662,330 (GRCm39) R173C probably damaging Het
Mapk12 A T 15: 89,019,840 (GRCm39) H122Q possibly damaging Het
Mdfic C T 6: 15,799,710 (GRCm39) T279I probably damaging Het
Mycbp2 A G 14: 103,412,233 (GRCm39) V2580A probably damaging Het
Mylk3 A G 8: 86,078,676 (GRCm39) I476T probably damaging Het
Ncapg G A 5: 45,831,705 (GRCm39) V184I probably benign Het
Or4a71 T A 2: 89,358,076 (GRCm39) H226L possibly damaging Het
Pla2g15 A G 8: 106,887,767 (GRCm39) Y185C probably damaging Het
Ptpro T A 6: 137,420,592 (GRCm39) V1007D probably damaging Het
Rbm45 A G 2: 76,205,768 (GRCm39) S207G probably benign Het
Reln T C 5: 22,115,847 (GRCm39) I3054V possibly damaging Het
Rreb1 G T 13: 38,077,941 (GRCm39) R51L probably damaging Het
Scube2 A T 7: 109,442,383 (GRCm39) probably benign Het
Slc15a2 A G 16: 36,602,666 (GRCm39) F65S probably damaging Het
Slc17a8 G T 10: 89,427,000 (GRCm39) probably benign Het
Snapc4 G A 2: 26,255,510 (GRCm39) Q1005* probably null Het
Stag3 A G 5: 138,297,101 (GRCm39) I550M probably damaging Het
Steap4 G T 5: 8,030,494 (GRCm39) R450L probably damaging Het
Strn4 T C 7: 16,556,923 (GRCm39) probably benign Het
Stxbp3 C T 3: 108,712,549 (GRCm39) probably null Het
Syngr1 A G 15: 80,000,240 (GRCm39) D117G probably damaging Het
Tbc1d10b A T 7: 126,798,967 (GRCm39) I513N 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
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
R6026:Lct UTSW 1 128,227,755 (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'- ACCTAGGAAATCCGCAGAGC -3'
(R):5'- AACTTGGGAACAGTGACTTGATAG -3'

Sequencing Primer
(F):5'- TAGGAAATCCGCAGAGCCTTTCAG -3'
(R):5'- GAACAGTGACTTGATAGTGTCTCTC -3'
Posted On 2015-04-17