Incidental Mutation 'R1803:Npc1l1'
ID 203308
Institutional Source Beutler Lab
Gene Symbol Npc1l1
Ensembl Gene ENSMUSG00000020447
Gene Name NPC1 like intracellular cholesterol transporter 1
Synonyms Niemann-Pick disease, type C1, 9130221N23Rik
MMRRC Submission 039833-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.098) question?
Stock # R1803 (G1)
Quality Score 225
Status Not validated
Chromosome 11
Chromosomal Location 6161013-6180143 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to T at 6178846 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Methionine to Lysine at position 188 (M188K)
Ref Sequence ENSEMBL: ENSMUSP00000004505 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000004505]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000004505
AA Change: M188K

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000004505
Gene: ENSMUSG00000020447
AA Change: M188K

DomainStartEndE-ValueType
signal peptide 1 20 N/A INTRINSIC
Pfam:NPC1_N 28 283 8.7e-74 PFAM
low complexity region 294 307 N/A INTRINSIC
transmembrane domain 348 370 N/A INTRINSIC
Pfam:Patched 385 897 4.7e-52 PFAM
Pfam:Sterol-sensing 661 815 5.7e-55 PFAM
Pfam:MMPL 665 830 2.3e-11 PFAM
Pfam:Patched 1063 1268 6.2e-34 PFAM
Coding Region Coverage
  • 1x: 97.4%
  • 3x: 96.8%
  • 10x: 95.0%
  • 20x: 91.6%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene is a multi-pass membrane protein. It contains a conserved N-terminal Niemann-Pick C1 (NPC1) domain and a putative sterol-sensing domain (SSD) which includes a YQRL motif functioning as a plasma membrane to trans-Golgi network transport signal in other proteins. This protein takes up free cholesterol into cells through vesicular endocytosis and plays a critical role in the absorption of intestinal cholesterol. It also has the ability to transport alpha-tocopherol (vitamin E). The drug ezetimibe targets this protein and inhibits the absorption of intestinal cholesterol and alpha-tocopherol. In addition, this protein may play a critical role in regulating lipid metabolism. Polymorphic variations in this gene are associated with plasma total cholesterol and low-density lipoprotein cholesterol (LDL-C) levels and coronary heart disease (CHD) risk. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]
PHENOTYPE: Mice homozygous for a targeted null mutation exhibit normal intestinal development, fertility and plasma cholesterol and triglyceride levels; however, intestinal cholesterol absorption was substantially reduced. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 87 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4921513D11Rik A T 17: 79,935,095 (GRCm39) probably benign Het
Adgrl3 C T 5: 81,919,464 (GRCm39) R586* probably null Het
Arpp21 T C 9: 111,956,466 (GRCm39) T471A possibly damaging Het
Blnk T C 19: 40,940,821 (GRCm39) E194G probably damaging Het
Cd44 G A 2: 102,664,597 (GRCm39) P332S probably damaging Het
Cd47 T C 16: 49,688,169 (GRCm39) F30L possibly damaging Het
Cdh23 T C 10: 60,167,060 (GRCm39) E1861G probably damaging Het
Cdkal1 T A 13: 29,701,454 (GRCm39) M332L probably damaging Het
Cul9 A G 17: 46,814,023 (GRCm39) S2284P probably damaging Het
Cyp2a5 G T 7: 26,534,971 (GRCm39) probably null Het
Dcp2 T C 18: 44,528,984 (GRCm39) I33T probably damaging Het
Ddx52 A T 11: 83,836,958 (GRCm39) I150L probably damaging Het
Dennd5a T A 7: 109,497,820 (GRCm39) T1067S probably benign Het
Dnpep A T 1: 75,286,058 (GRCm39) L419* probably null Het
Dock8 A G 19: 25,109,599 (GRCm39) K927R probably benign Het
Dpy19l4 A T 4: 11,281,020 (GRCm39) V475E possibly damaging Het
Edf1 C T 2: 25,450,206 (GRCm39) S41F probably damaging Het
Elapor2 A G 5: 9,477,832 (GRCm39) H410R probably benign Het
Emilin1 C T 5: 31,075,082 (GRCm39) P441L possibly damaging Het
Epha3 T C 16: 63,422,651 (GRCm39) K579E probably benign Het
Exoc1 A G 5: 76,709,288 (GRCm39) N23S probably benign Het
Flt3 C A 5: 147,303,865 (GRCm39) E358* probably null Het
Fzd1 A T 5: 4,806,385 (GRCm39) I399K probably damaging Het
Gdi2 T A 13: 3,614,547 (GRCm39) Y333* probably null Het
Gm10479 A G 12: 20,483,654 (GRCm39) H91R probably benign Het
Gm10842 G A 11: 105,037,867 (GRCm39) R50K unknown Het
Grin2c A T 11: 115,151,558 (GRCm39) probably null Het
Grk2 C T 19: 4,344,911 (GRCm39) V53M probably damaging Het
H2-M10.2 C T 17: 36,596,763 (GRCm39) M104I probably benign Het
Hyou1 C T 9: 44,295,479 (GRCm39) Q290* probably null Het
Inka1 A G 9: 107,861,938 (GRCm39) V128A probably benign Het
Itgb2 T C 10: 77,400,624 (GRCm39) S746P probably benign Het
Jmjd7 C T 2: 119,860,589 (GRCm39) L39F probably damaging Het
Kcnh8 GAGACCAACGAGCAGCTGATGCTTCAGA GAGA 17: 53,032,934 (GRCm39) 74 probably benign Het
Klhl2 T C 8: 65,212,831 (GRCm39) E236G probably damaging Het
Krtap19-4 C A 16: 88,681,879 (GRCm39) G26C unknown Het
Krtap4-16 G A 11: 99,741,998 (GRCm39) T134I possibly damaging Het
Lamb2 A G 9: 108,365,298 (GRCm39) H1318R probably benign Het
Mab21l3 G A 3: 101,742,446 (GRCm39) T38M probably benign Het
Mfsd10 A T 5: 34,794,094 (GRCm39) D6E possibly damaging Het
Mnat1 G T 12: 73,226,007 (GRCm39) G91* probably null Het
Mns1 A T 9: 72,360,016 (GRCm39) I389F probably damaging Het
Morc1 A T 16: 48,443,001 (GRCm39) T829S probably benign Het
Morn5 T A 2: 35,943,089 (GRCm39) V63E probably benign Het
Mybpc1 T C 10: 88,389,157 (GRCm39) T404A possibly damaging Het
Nrcam T A 12: 44,618,991 (GRCm39) M846K probably benign Het
Nup210 A C 6: 91,051,264 (GRCm39) F373C probably damaging Het
Or4k49 G T 2: 111,495,099 (GRCm39) S176I probably damaging Het
Or5b111 A T 19: 13,291,535 (GRCm39) V38E possibly damaging Het
Or7g18 T C 9: 18,787,376 (GRCm39) V248A probably damaging Het
Osbpl8 T C 10: 111,110,910 (GRCm39) S471P probably damaging Het
Plekhn1 A T 4: 156,306,838 (GRCm39) I517N probably benign Het
Plin4 G T 17: 56,411,931 (GRCm39) T700K probably damaging Het
Plxna4 A T 6: 32,494,379 (GRCm39) V79D probably damaging Het
Prdm16 A T 4: 154,419,718 (GRCm39) M897K probably damaging Het
Ptprg T A 14: 12,091,410 (GRCm38) probably null Het
Rcan2 G T 17: 44,347,924 (GRCm39) C211F probably damaging Het
Rigi A G 4: 40,224,013 (GRCm39) S289P probably benign Het
Rxfp1 C T 3: 79,645,076 (GRCm39) C9Y probably benign Het
Scn2a G A 2: 65,501,111 (GRCm39) probably null Het
Scnn1a A C 6: 125,309,157 (GRCm39) R264S probably damaging Het
Sema4g T C 19: 44,986,459 (GRCm39) V345A probably benign Het
Sgo2b T A 8: 64,380,426 (GRCm39) D802V probably benign Het
Slc25a21 G A 12: 56,904,872 (GRCm39) T54I probably benign Het
Slc25a46 C T 18: 31,727,641 (GRCm39) E223K probably damaging Het
Slc25a54 A G 3: 109,010,013 (GRCm39) I171V probably benign Het
Slc7a6 T C 8: 106,919,088 (GRCm39) V224A possibly damaging Het
Smchd1 A T 17: 71,694,001 (GRCm39) V1248E probably damaging Het
Sort1 C A 3: 108,233,015 (GRCm39) F196L probably damaging Het
Sptbn4 G A 7: 27,118,008 (GRCm39) T357M probably damaging Het
Srrm3 T A 5: 135,885,983 (GRCm39) W308R probably damaging Het
Stard9 A T 2: 120,531,970 (GRCm39) E2742D probably benign Het
Tas1r1 T A 4: 152,116,705 (GRCm39) I310F probably damaging Het
Tas1r3 G A 4: 155,944,927 (GRCm39) R765C probably damaging Het
Tff1 A T 17: 31,380,560 (GRCm39) C85* probably null Het
Tlr11 C T 14: 50,598,104 (GRCm39) T30I probably benign Het
Trio T C 15: 27,748,426 (GRCm39) T1265A probably benign Het
Ttc7b T C 12: 100,373,261 (GRCm39) M338V possibly damaging Het
Umod T A 7: 119,063,947 (GRCm39) S620C probably damaging Het
Ust C A 10: 8,173,819 (GRCm39) probably null Het
Vmn1r176 A T 7: 23,534,609 (GRCm39) S181R probably damaging Het
Vmn1r202 T C 13: 22,686,313 (GRCm39) T35A probably benign Het
Vmn1r39 C A 6: 66,781,895 (GRCm39) R104L probably benign Het
Vps13b T A 15: 35,430,351 (GRCm39) Y286* probably null Het
Zfp579 G A 7: 4,996,769 (GRCm39) R381C probably damaging Het
Zfp85 A G 13: 67,899,747 (GRCm39) S71P probably benign Het
Zfyve16 A T 13: 92,640,593 (GRCm39) V1254E probably damaging Het
Other mutations in Npc1l1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00163:Npc1l1 APN 11 6,174,199 (GRCm39) missense probably damaging 1.00
IGL01348:Npc1l1 APN 11 6,177,974 (GRCm39) missense probably damaging 1.00
IGL01891:Npc1l1 APN 11 6,164,280 (GRCm39) missense probably damaging 1.00
IGL01897:Npc1l1 APN 11 6,177,879 (GRCm39) missense probably benign
IGL02098:Npc1l1 APN 11 6,164,581 (GRCm39) missense probably damaging 0.99
IGL02121:Npc1l1 APN 11 6,178,157 (GRCm39) missense probably benign
IGL02724:Npc1l1 APN 11 6,164,684 (GRCm39) missense possibly damaging 0.88
IGL02947:Npc1l1 APN 11 6,179,246 (GRCm39) missense probably benign 0.01
IGL03328:Npc1l1 APN 11 6,168,643 (GRCm39) nonsense probably null
R0137:Npc1l1 UTSW 11 6,178,148 (GRCm39) nonsense probably null
R0322:Npc1l1 UTSW 11 6,179,042 (GRCm39) missense probably benign
R0352:Npc1l1 UTSW 11 6,173,076 (GRCm39) missense probably benign 0.00
R0492:Npc1l1 UTSW 11 6,173,040 (GRCm39) missense possibly damaging 0.82
R0918:Npc1l1 UTSW 11 6,168,239 (GRCm39) missense probably damaging 1.00
R1300:Npc1l1 UTSW 11 6,177,859 (GRCm39) missense probably damaging 1.00
R1455:Npc1l1 UTSW 11 6,178,174 (GRCm39) missense possibly damaging 0.66
R1588:Npc1l1 UTSW 11 6,167,785 (GRCm39) missense probably benign 0.01
R1882:Npc1l1 UTSW 11 6,167,473 (GRCm39) splice site probably null
R1944:Npc1l1 UTSW 11 6,164,588 (GRCm39) missense possibly damaging 0.67
R1945:Npc1l1 UTSW 11 6,175,199 (GRCm39) nonsense probably null
R1945:Npc1l1 UTSW 11 6,164,588 (GRCm39) missense possibly damaging 0.67
R3155:Npc1l1 UTSW 11 6,171,840 (GRCm39) missense probably benign
R4343:Npc1l1 UTSW 11 6,167,773 (GRCm39) missense probably benign
R4504:Npc1l1 UTSW 11 6,178,741 (GRCm39) missense possibly damaging 0.61
R4610:Npc1l1 UTSW 11 6,178,215 (GRCm39) missense probably damaging 1.00
R4807:Npc1l1 UTSW 11 6,168,723 (GRCm39) missense probably damaging 1.00
R4829:Npc1l1 UTSW 11 6,164,010 (GRCm39) critical splice donor site probably null
R5135:Npc1l1 UTSW 11 6,174,245 (GRCm39) missense possibly damaging 0.94
R5290:Npc1l1 UTSW 11 6,172,221 (GRCm39) missense probably benign 0.00
R5369:Npc1l1 UTSW 11 6,167,705 (GRCm39) critical splice donor site probably null
R5388:Npc1l1 UTSW 11 6,164,733 (GRCm39) missense probably damaging 1.00
R5532:Npc1l1 UTSW 11 6,174,245 (GRCm39) missense probably damaging 0.98
R5540:Npc1l1 UTSW 11 6,164,546 (GRCm39) missense probably damaging 1.00
R5754:Npc1l1 UTSW 11 6,177,839 (GRCm39) missense probably damaging 1.00
R5760:Npc1l1 UTSW 11 6,179,031 (GRCm39) missense probably benign 0.02
R6057:Npc1l1 UTSW 11 6,167,806 (GRCm39) missense possibly damaging 0.66
R6388:Npc1l1 UTSW 11 6,174,145 (GRCm39) missense probably damaging 1.00
R6644:Npc1l1 UTSW 11 6,164,014 (GRCm39) missense probably damaging 0.98
R6644:Npc1l1 UTSW 11 6,164,013 (GRCm39) missense probably damaging 1.00
R6756:Npc1l1 UTSW 11 6,165,153 (GRCm39) missense probably damaging 1.00
R6790:Npc1l1 UTSW 11 6,164,260 (GRCm39) splice site probably null
R7006:Npc1l1 UTSW 11 6,167,731 (GRCm39) missense probably benign
R7062:Npc1l1 UTSW 11 6,167,807 (GRCm39) missense probably benign
R7273:Npc1l1 UTSW 11 6,168,320 (GRCm39) missense probably damaging 1.00
R7383:Npc1l1 UTSW 11 6,167,777 (GRCm39) missense probably benign 0.30
R8003:Npc1l1 UTSW 11 6,165,129 (GRCm39) missense probably benign 0.01
R8081:Npc1l1 UTSW 11 6,167,768 (GRCm39) missense probably benign 0.01
R8272:Npc1l1 UTSW 11 6,179,327 (GRCm39) nonsense probably null
R8549:Npc1l1 UTSW 11 6,168,675 (GRCm39) missense probably damaging 1.00
R8849:Npc1l1 UTSW 11 6,179,038 (GRCm39) missense probably damaging 0.97
R8887:Npc1l1 UTSW 11 6,175,665 (GRCm39) missense probably damaging 1.00
R8907:Npc1l1 UTSW 11 6,178,157 (GRCm39) missense probably benign 0.28
R9102:Npc1l1 UTSW 11 6,164,684 (GRCm39) missense possibly damaging 0.88
R9289:Npc1l1 UTSW 11 6,168,355 (GRCm39) nonsense probably null
R9626:Npc1l1 UTSW 11 6,177,854 (GRCm39) missense probably benign 0.05
R9785:Npc1l1 UTSW 11 6,180,090 (GRCm39) missense unknown
X0022:Npc1l1 UTSW 11 6,178,058 (GRCm39) missense probably damaging 1.00
Z1177:Npc1l1 UTSW 11 6,175,209 (GRCm39) missense possibly damaging 0.92
Z1177:Npc1l1 UTSW 11 6,168,681 (GRCm39) missense probably damaging 0.99
Z1177:Npc1l1 UTSW 11 6,164,343 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- CTTCACCCTGGGACTCATTG -3'
(R):5'- CGGCATGCTCTGAAAATTTTGTG -3'

Sequencing Primer
(F):5'- GCAGGGTGTGATCTTCCCATC -3'
(R):5'- GTCATAATACCTGCAGCCCTG -3'
Posted On 2014-06-23