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|Institutional Source||Beutler Lab|
|Gene Name||NPC1 like intracellular cholesterol transporter 1|
|Synonyms||9130221N23Rik, Niemann-Pick disease, type C1|
|Is this an essential gene?||Probably non essential (E-score: 0.148)|
|Stock #||R8003 (G1)|
|Chromosomal Location||6211013-6230143 bp(-) (GRCm38)|
|Type of Mutation||missense|
|DNA Base Change (assembly)||T to C at 6215129 bp|
|Amino Acid Change||Glutamine to Arginine at position 1061 (Q1061R)|
|Ref Sequence||ENSEMBL: ENSMUSP00000004505 (fasta)|
|Gene Model||predicted gene model for transcript(s): [ENSMUST00000004505]|
|Predicted Effect||probably benign
AA Change: Q1061R
PolyPhen 2 Score 0.015 (Sensitivity: 0.96; Specificity: 0.79)
AA Change: Q1061R
|Coding Region Coverage||
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||
|Other mutations in Npc1l1||
(F):5'- GACAGCTGAGACAAAGTTGGTCC -3'
(R):5'- GGAAATGCAGGTCTCTTGTAGAG -3'
(F):5'- GCTGAGACAAAGTTGGTCCTCATC -3'
(R):5'- GAATCGATCAGGAATTTCAAGTGCTG -3'