Incidental Mutation 'R8992:Lct'
ID 684447
Institutional Source Beutler Lab
Gene Symbol Lct
Ensembl Gene ENSMUSG00000026354
Gene Name lactase
Synonyms LPH, LOC226413, Lphl
MMRRC Submission
Accession Numbers

Genbank: NM_001081078; MGI:104576

Essential gene? Non essential (E-score: 0.000) question?
Stock # R8992 (G1)
Quality Score 225.009
Status Validated
Chromosome 1
Chromosomal Location 128284756-128328318 bp(-) (GRCm38)
Type of Mutation missense
DNA Base Change (assembly) T to A at 128300562 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change Threonine to Serine at position 1065 (T1065S)
Ref Sequence ENSEMBL: ENSMUSP00000073190 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000073490]
AlphaFold F8VPT3
Predicted Effect probably damaging
Transcript: ENSMUST00000073490
AA Change: T1065S

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000073190
Gene: ENSMUSG00000026354
AA Change: T1065S

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 0.4548 question?
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 98.8%
Validation Efficiency 100% (75/75)
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
Abhd14b A G 9: 106,451,618 D146G probably benign Het
Abhd6 T A 14: 8,028,282 D4E probably benign Het
Atpif1 T C 4: 132,533,374 D34G probably benign Het
Bcr T C 10: 75,131,572 F546S probably damaging Het
Bean1 CT C 8: 104,182,032 probably null Het
Ccdc141 A T 2: 77,014,395 W1443R probably damaging Het
Chd7 A G 4: 8,839,589 D1375G probably damaging Het
Chil1 A T 1: 134,187,924 Q223H probably benign Het
Clcn2 A T 16: 20,712,330 F260I probably damaging Het
Cpq A T 15: 33,594,235 D464V probably benign Het
Crygb T C 1: 65,082,141 D9G probably damaging Het
Cyp2b10 A G 7: 25,925,390 K438E unknown Het
Cyp46a1 A T 12: 108,358,107 D381V possibly damaging Het
Dhx40 A C 11: 86,776,756 probably benign Het
Dnase2b G T 3: 146,586,962 P152Q probably damaging Het
Duox1 A T 2: 122,344,705 H1328L probably damaging Het
Ephb6 C T 6: 41,613,359 A15V probably benign Het
Fam168b A G 1: 34,819,781 F102L probably benign Het
Fam3b T A 16: 97,476,394 D128V probably damaging Het
Galnt11 T G 5: 25,264,985 H527Q possibly damaging Het
Gbp2b A T 3: 142,610,969 R460S probably benign Het
Gm7534 G A 4: 134,202,667 T109I probably damaging Het
Hdhd2 A C 18: 76,970,670 S246R possibly damaging Het
Heatr1 T C 13: 12,401,114 M189T probably damaging Het
Ino80 A G 2: 119,379,578 S1411P possibly damaging Het
Jakmip1 A G 5: 37,117,538 T467A probably benign Het
Kcnh2 A G 5: 24,331,870 S239P probably benign Het
Lrrc66 T C 5: 73,629,884 D41G probably benign Het
Mfsd2b A T 12: 4,871,490 D26E probably benign Het
Myh1 A T 11: 67,205,781 M333L probably benign Het
Neurl4 T C 11: 69,908,132 V855A possibly damaging Het
Nfkb2 T A 19: 46,306,865 V80D probably damaging Het
Nop9 T C 14: 55,745,981 S70P possibly damaging Het
Olfr325 A G 11: 58,580,912 S23G probably benign Het
Pcdhb14 G T 18: 37,449,178 D446Y probably damaging Het
Pclo C T 5: 14,669,311 A1154V unknown Het
Pdgfa G T 5: 138,986,222 Q141K probably damaging Het
Plekhh1 G T 12: 79,075,533 L1133F probably damaging Het
Pole A T 5: 110,323,622 N1411Y possibly damaging Het
Primpol A G 8: 46,581,562 probably benign Het
Psmc5 T G 11: 106,261,961 V203G probably damaging Het
Ptgdr C T 14: 44,858,724 C177Y probably damaging Het
Ptgir A T 7: 16,907,295 I171F probably damaging Het
Ptprg T A 14: 12,154,170 H630Q probably benign Het
Ptrh2 A G 11: 86,690,081 T175A possibly damaging Het
Ralgapb A G 2: 158,454,277 T857A probably damaging Het
Rnf24 A G 2: 131,313,277 F10S possibly damaging Het
Rreb1 C A 13: 37,930,376 S570R probably benign Het
Rttn A G 18: 88,977,708 N205S probably benign Het
Rusc1 T C 3: 89,092,058 E139G probably benign Het
Scn2a A G 2: 65,763,898 N1697S probably damaging Het
Serpinb3a T A 1: 107,047,177 M209L probably damaging Het
Shank3 A G 15: 89,548,685 D1211G possibly damaging Het
Slc22a12 C A 19: 6,542,484 R90L possibly damaging Het
Slc6a13 G A 6: 121,336,942 W548* probably null Het
Srfbp1 T A 18: 52,476,320 L59* probably null Het
Ss18 A T 18: 14,670,323 S73T probably damaging Het
Syne1 T C 10: 5,185,508 K189R probably benign Het
Szt2 G T 4: 118,382,788 probably benign Het
Tbx1 T A 16: 18,584,187 H183L probably damaging Het
Thop1 A G 10: 81,080,138 E385G possibly damaging Het
Tmem168 C A 6: 13,602,850 M172I possibly damaging Het
Tmem67 A G 4: 12,058,559 Y513H probably damaging Het
Top1 A G 2: 160,721,001 D709G probably damaging Het
Tprgl A C 4: 154,158,433 S247A probably damaging Het
Trim46 A G 3: 89,236,385 S602P probably damaging Het
Ttc30a1 A T 2: 75,979,907 C611S probably benign Het
Ttc7b T C 12: 100,500,174 K60E probably benign Het
Ttn G A 2: 76,884,471 S8053F unknown Het
Tyw1 G A 5: 130,269,224 R202Q probably damaging Het
Usp24 T A 4: 106,377,565 H956Q probably benign Het
Vcp T C 4: 42,980,828 T761A probably benign Het
Xpc G A 6: 91,500,974 T309I possibly damaging Het
Zfp560 C T 9: 20,349,599 M129I probably benign Het
Other mutations in Lct
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00777:Lct APN 1 128287556 missense probably benign 0.09
IGL00970:Lct APN 1 128304068 missense probably damaging 1.00
IGL01022:Lct APN 1 128300859 missense probably benign
IGL01878:Lct APN 1 128294266 missense probably damaging 1.00
IGL01892:Lct APN 1 128307605 missense probably damaging 1.00
IGL02307:Lct APN 1 128286590 missense possibly damaging 0.70
IGL02434:Lct APN 1 128303790 missense probably damaging 0.97
IGL02559:Lct APN 1 128294266 missense probably damaging 1.00
IGL02623:Lct APN 1 128308251 missense probably benign 0.01
IGL02818:Lct APN 1 128300168 missense probably damaging 1.00
IGL02949:Lct APN 1 128313132 missense probably benign 0.26
IGL02951:Lct APN 1 128300211 missense probably damaging 1.00
IGL03087:Lct APN 1 128300375 missense possibly damaging 0.81
IGL03227:Lct APN 1 128327689 missense probably benign 0.09
ANU18:Lct UTSW 1 128308047 nonsense probably null
R0071:Lct UTSW 1 128292018 nonsense probably null
R0071:Lct UTSW 1 128292018 nonsense probably null
R0135:Lct UTSW 1 128285123 missense probably damaging 0.98
R0145:Lct UTSW 1 128327895 missense probably benign 0.00
R0179:Lct UTSW 1 128327685 missense probably benign
R0331:Lct UTSW 1 128298742 splice site probably benign
R0366:Lct UTSW 1 128286462 missense probably benign 0.03
R0399:Lct UTSW 1 128300525 missense probably damaging 1.00
R0492:Lct UTSW 1 128300582 missense probably damaging 1.00
R0548:Lct UTSW 1 128285195 missense probably damaging 1.00
R0691:Lct UTSW 1 128308234 missense probably benign 0.00
R0755:Lct UTSW 1 128294135 missense possibly damaging 0.46
R0839:Lct UTSW 1 128286609 missense probably benign 0.00
R1128:Lct UTSW 1 128301309 missense probably damaging 0.99
R1135:Lct UTSW 1 128294124 critical splice donor site probably null
R1321:Lct UTSW 1 128300022 missense probably benign
R1448:Lct UTSW 1 128307822 missense probably damaging 0.99
R1450:Lct UTSW 1 128307903 missense probably damaging 1.00
R1572:Lct UTSW 1 128294195 missense probably benign 0.25
R1582:Lct UTSW 1 128300562 missense probably damaging 1.00
R1668:Lct UTSW 1 128287722 splice site probably null
R1757:Lct UTSW 1 128301257 missense probably damaging 1.00
R1775:Lct UTSW 1 128300301 missense probably damaging 1.00
R1792:Lct UTSW 1 128327942 missense possibly damaging 0.54
R1815:Lct UTSW 1 128300159 missense probably damaging 1.00
R1932:Lct UTSW 1 128294161 missense probably damaging 1.00
R2325:Lct UTSW 1 128304226 missense probably damaging 1.00
R2381:Lct UTSW 1 128304121 nonsense probably null
R3001:Lct UTSW 1 128304226 missense probably damaging 1.00
R3002:Lct UTSW 1 128304226 missense probably damaging 1.00
R3003:Lct UTSW 1 128304226 missense probably damaging 1.00
R3011:Lct UTSW 1 128301372 missense possibly damaging 0.74
R3082:Lct UTSW 1 128287608 missense probably damaging 1.00
R3683:Lct UTSW 1 128304226 missense probably damaging 1.00
R3684:Lct UTSW 1 128304226 missense probably damaging 1.00
R3726:Lct UTSW 1 128304226 missense probably damaging 1.00
R3886:Lct UTSW 1 128304226 missense probably damaging 1.00
R3887:Lct UTSW 1 128304226 missense probably damaging 1.00
R3888:Lct UTSW 1 128304226 missense probably damaging 1.00
R4019:Lct UTSW 1 128304226 missense probably damaging 1.00
R4027:Lct UTSW 1 128285181 missense probably benign 0.00
R4226:Lct UTSW 1 128304226 missense probably damaging 1.00
R4409:Lct UTSW 1 128304226 missense probably damaging 1.00
R4514:Lct UTSW 1 128300514 missense probably benign
R4570:Lct UTSW 1 128299904 missense probably benign 0.01
R4776:Lct UTSW 1 128300387 missense probably damaging 0.99
R5001:Lct UTSW 1 128308241 missense probably damaging 0.96
R5021:Lct UTSW 1 128300565 missense probably benign 0.38
R5318:Lct UTSW 1 128304372 missense probably damaging 1.00
R5330:Lct UTSW 1 128298529 missense probably benign 0.06
R5385:Lct UTSW 1 128311617 missense possibly damaging 0.63
R5499:Lct UTSW 1 128286677 missense probably damaging 1.00
R5508:Lct UTSW 1 128294131 missense probably damaging 1.00
R5642:Lct UTSW 1 128295232 missense probably damaging 1.00
R5724:Lct UTSW 1 128300336 missense probably benign
R6026:Lct UTSW 1 128300018 missense probably benign
R6044:Lct UTSW 1 128307980 missense possibly damaging 0.95
R6175:Lct UTSW 1 128327714 missense probably damaging 1.00
R6277:Lct UTSW 1 128304237 missense probably benign 0.01
R6412:Lct UTSW 1 128327718 missense probably benign 0.00
R6480:Lct UTSW 1 128294320 missense probably damaging 1.00
R6526:Lct UTSW 1 128300478 missense probably benign 0.05
R6620:Lct UTSW 1 128295072 critical splice donor site probably null
R7214:Lct UTSW 1 128300460 missense probably benign 0.00
R7308:Lct UTSW 1 128319087 missense probably benign 0.00
R7577:Lct UTSW 1 128300732 missense probably damaging 0.99
R7626:Lct UTSW 1 128285195 missense probably damaging 1.00
R7737:Lct UTSW 1 128298693 missense probably benign 0.12
R7901:Lct UTSW 1 128288985 missense probably benign 0.44
R8033:Lct UTSW 1 128285259 missense probably benign 0.03
R8373:Lct UTSW 1 128303840 missense probably damaging 1.00
R8504:Lct UTSW 1 128287569 missense probably damaging 1.00
R8751:Lct UTSW 1 128293797 missense probably benign 0.18
R8781:Lct UTSW 1 128287524 missense probably damaging 1.00
R8797:Lct UTSW 1 128303947 missense possibly damaging 0.77
R8926:Lct UTSW 1 128300411 missense probably damaging 1.00
R8949:Lct UTSW 1 128294192 missense probably damaging 1.00
R9138:Lct UTSW 1 128300157 missense probably benign 0.03
R9260:Lct UTSW 1 128299967 nonsense probably null
R9416:Lct UTSW 1 128300592 missense possibly damaging 0.74
R9531:Lct UTSW 1 128307861 missense probably benign 0.00
X0052:Lct UTSW 1 128307630 missense probably damaging 1.00
YA93:Lct UTSW 1 128301320 missense probably damaging 1.00
Z1176:Lct UTSW 1 128287611 nonsense probably null
Predicted Primers PCR Primer
(F):5'- CAGTGAGTGTTGAGGCTCAGAG -3'
(R):5'- ACGGGAAGAAACAGTTCCATC -3'

Sequencing Primer
(F):5'- TCAGAGAGATGACCCCCTTCTG -3'
(R):5'- CAAACTGATTGACAGATTGTTGGAG -3'
Posted On 2021-10-11