Incidental Mutation 'R6644:Npc1l1'
ID 526025
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 044765-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.098) question?
Stock # R6644 (G1)
Quality Score 138.008
Status Validated
Chromosome 11
Chromosomal Location 6161013-6180143 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to T at 6164014 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Methionine at position 1266 (L1266M)
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: L1266M

PolyPhen 2 Score 0.983 (Sensitivity: 0.75; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000004505
Gene: ENSMUSG00000020447
AA Change: L1266M

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
Meta Mutation Damage Score 0.6467 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.5%
  • 10x: 97.5%
  • 20x: 92.3%
Validation Efficiency 100% (50/50)
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: 49 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca7 C T 10: 79,844,598 (GRCm39) P1461L probably damaging Het
Abhd14a T C 9: 106,321,472 (GRCm39) Y10C probably damaging Het
Adcy2 C T 13: 68,816,671 (GRCm39) V772M possibly damaging Het
Apob A G 12: 8,059,077 (GRCm39) M2487V probably damaging Het
B4galnt1 T C 10: 127,007,662 (GRCm39) probably null Het
Cabp7 C T 11: 4,690,396 (GRCm39) V76I probably benign Het
Cbr3 A G 16: 93,487,399 (GRCm39) Y194C probably damaging Het
Cdk18 G A 1: 132,049,807 (GRCm39) Q58* probably null Het
Cryba4 T C 5: 112,394,628 (GRCm39) D167G probably damaging Het
Czib T G 4: 107,752,119 (GRCm39) I130S probably damaging Het
Dner T C 1: 84,373,428 (GRCm39) N588S probably damaging Het
Dnm1l T C 16: 16,147,737 (GRCm39) I343V probably benign Het
Eif1ad16 A G 12: 87,985,460 (GRCm39) F28L probably benign Het
Fam168b C A 1: 34,875,822 (GRCm39) G21V probably damaging Het
Fbxw17 G A 13: 50,577,255 (GRCm39) R49Q probably damaging Het
Garin2 T A 12: 78,762,060 (GRCm39) D241E probably damaging Het
Gm10332 T A 14: 55,057,616 (GRCm39) F59I probably damaging Het
Gnai3 A G 3: 108,030,852 (GRCm39) probably null Het
Helz T A 11: 107,523,087 (GRCm39) M75K possibly damaging Het
Hnrnph3 C T 10: 62,854,672 (GRCm39) probably benign Het
Ifi211 C T 1: 173,733,118 (GRCm39) C181Y probably benign Het
Immp1l A G 2: 105,767,390 (GRCm39) K83R probably damaging Het
Itga6 G A 2: 71,671,468 (GRCm39) G740R probably damaging Het
Klhl1 T C 14: 96,755,354 (GRCm39) T134A probably benign Het
Klhl7 A G 5: 24,354,244 (GRCm39) D353G probably damaging Het
Map3k1 A G 13: 111,888,983 (GRCm39) S1325P probably benign Het
Map3k4 A G 17: 12,451,297 (GRCm39) probably null Het
Meioc G A 11: 102,559,286 (GRCm39) probably null Het
Mfap5 T C 6: 122,497,555 (GRCm39) F26L probably damaging Het
Myo5a A G 9: 75,054,249 (GRCm39) T386A probably damaging Het
Or4c116 A G 2: 88,942,325 (GRCm39) M177T probably benign Het
Or51aa2 C A 7: 103,188,265 (GRCm39) V59F possibly damaging Het
Pbld1 T A 10: 62,910,842 (GRCm39) S233T probably damaging Het
Phf12 A G 11: 77,916,918 (GRCm39) *789W probably null Het
Sf3b2 A T 19: 5,329,992 (GRCm39) probably null Het
Slc23a3 A G 1: 75,105,191 (GRCm39) I459T probably damaging Het
Spata31e4 A G 13: 50,856,071 (GRCm39) T570A possibly damaging Het
Sptbn2 C G 19: 4,799,040 (GRCm39) R2037G probably benign Het
Stard9 A C 2: 120,526,253 (GRCm39) M837L probably benign Het
Stx5a A T 19: 8,732,612 (GRCm39) probably benign Het
Tmc7 A G 7: 118,137,385 (GRCm39) V719A probably benign Het
Trank1 T A 9: 111,193,902 (GRCm39) I642K possibly damaging Het
Trim34a T C 7: 103,910,244 (GRCm39) Y349H probably damaging Het
Uba7 A G 9: 107,858,671 (GRCm39) Y834C possibly damaging Het
Ube2d1 A G 10: 71,092,530 (GRCm39) S105P possibly damaging Het
Vps13a A G 19: 16,722,283 (GRCm39) V343A possibly damaging Het
Zbtb37 G A 1: 160,859,643 (GRCm39) Q221* probably null Het
Zfp119b T C 17: 56,246,148 (GRCm39) N346S probably benign Het
Zfp708 G T 13: 67,218,785 (GRCm39) T358K possibly 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
R1803:Npc1l1 UTSW 11 6,178,846 (GRCm39) missense probably damaging 1.00
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 6,164,013 (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'- GCAGCCCACACAGTGTTTAAG -3'
(R):5'- GATCCACCTGAGCCTTTATGTC -3'

Sequencing Primer
(F):5'- TGTTTAAGACACAATCAACTCACAG -3'
(R):5'- TGCTGACTCCTGGCTGTGAC -3'
Posted On 2018-06-22