Incidental Mutation 'R1321:Lct'
ID 157668
Institutional Source Beutler Lab
Gene Symbol Lct
Ensembl Gene ENSMUSG00000026354
Gene Name lactase
Synonyms LPH, LOC226413, Lphl
MMRRC Submission 039387-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R1321 (G1)
Quality Score 225
Status Validated
Chromosome 1
Chromosomal Location 128212493-128256055 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to C at 128227759 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Valine at position 1245 (L1245V)
Ref Sequence ENSEMBL: ENSMUSP00000073190 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000073490]
AlphaFold F8VPT3
Predicted Effect probably benign
Transcript: ENSMUST00000073490
AA Change: L1245V

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000073190
Gene: ENSMUSG00000026354
AA Change: L1245V

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: 98.8%
  • 3x: 97.8%
  • 10x: 95.0%
  • 20x: 89.1%
Validation Efficiency 100% (41/41)
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: 35 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930447C04Rik A G 12: 72,945,318 (GRCm39) probably benign Het
Aco2 C T 15: 81,779,394 (GRCm39) S33L probably damaging Het
C2cd2l A G 9: 44,228,878 (GRCm39) probably null Het
Cass4 T A 2: 172,266,572 (GRCm39) L205Q probably benign Het
Ccn3 G T 15: 54,612,642 (GRCm39) C217F probably damaging Het
Celsr3 G A 9: 108,713,069 (GRCm39) D1834N probably damaging Het
Col12a1 A T 9: 79,524,991 (GRCm39) C2723* probably null Het
Cps1 A G 1: 67,182,178 (GRCm39) probably benign Het
Dolpp1 A G 2: 30,285,748 (GRCm39) I49V possibly damaging Het
Dppa2 A G 16: 48,131,999 (GRCm39) E32G possibly damaging Het
Eif2b5 C T 16: 20,323,439 (GRCm39) R397* probably null Het
Far2 G T 6: 148,075,034 (GRCm39) probably benign Het
Fbxo42 C T 4: 140,895,160 (GRCm39) T41I probably benign Het
Fbxw15 G A 9: 109,387,314 (GRCm39) S227F probably damaging Het
Galnt13 G A 2: 54,988,606 (GRCm39) R476Q probably damaging Het
Galnt18 A T 7: 111,378,639 (GRCm39) V39E probably benign Het
Gm10801 C T 2: 98,494,252 (GRCm39) probably benign Het
Gm21954 C T 3: 55,379,627 (GRCm39) probably benign Het
Lgr5 T C 10: 115,314,362 (GRCm39) T192A probably damaging Het
Mrpl42 C T 10: 95,329,573 (GRCm39) V46M probably damaging Het
Mybpc1 C T 10: 88,365,403 (GRCm39) V907M possibly damaging Het
Mybpc1 T A 10: 88,406,463 (GRCm39) Y127F probably damaging Het
Nrbp1 T A 5: 31,403,157 (GRCm39) I210N probably damaging Het
Otud4 T C 8: 80,396,579 (GRCm39) S613P probably benign Het
P2ry12 T C 3: 59,124,646 (GRCm39) E343G possibly damaging Het
Pbrm1 A C 14: 30,789,459 (GRCm39) K670T probably damaging Het
Prl2c2 G C 13: 13,176,786 (GRCm39) T47R probably damaging Het
Reg3b A G 6: 78,349,936 (GRCm39) probably null Het
Sppl3 TGG TG 5: 115,226,352 (GRCm39) probably null Het
Ssr2 T C 3: 88,484,261 (GRCm39) probably benign Het
Syne3 A C 12: 104,942,055 (GRCm39) V29G probably benign Het
Ubr4 T C 4: 139,187,434 (GRCm39) V3834A possibly damaging Het
Vmn2r112 C T 17: 22,837,500 (GRCm39) Q654* probably null Het
Vmn2r14 C T 5: 109,364,117 (GRCm39) V600I probably benign Het
Zfp251 C T 15: 76,738,436 (GRCm39) R219Q 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
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
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'- AAGCACCTGCCAAAGCATGGAG -3'
(R):5'- AGAAGAATTACATCAGAGGCACCGC -3'

Sequencing Primer
(F):5'- GAACTTCCATGTACCTTTCAGAG -3'
(R):5'- GCCGATGTCTTCTGCATCAAC -3'
Posted On 2014-02-18