Incidental Mutation 'R2326:Cyp7a1'
ID 244911
Institutional Source Beutler Lab
Gene Symbol Cyp7a1
Ensembl Gene ENSMUSG00000028240
Gene Name cytochrome P450, family 7, subfamily a, polypeptide 1
Synonyms cholesterol 7 alpha hydroxylase
MMRRC Submission 040317-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.376) question?
Stock # R2326 (G1)
Quality Score 225
Status Validated
Chromosome 4
Chromosomal Location 6265612-6275632 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to T at 6268396 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Lysine at position 443 (I443K)
Ref Sequence ENSEMBL: ENSMUSP00000029905 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000029905]
AlphaFold Q64505
Predicted Effect probably benign
Transcript: ENSMUST00000029905
AA Change: I443K

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000029905
Gene: ENSMUSG00000028240
AA Change: I443K

DomainStartEndE-ValueType
transmembrane domain 5 24 N/A INTRINSIC
Pfam:p450 32 497 2.3e-87 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000147346
Meta Mutation Damage Score 0.1505 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 95.0%
Validation Efficiency 100% (31/31)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This endoplasmic reticulum membrane protein catalyzes the first reaction in the cholesterol catabolic pathway in the liver, which converts cholesterol to bile acids. This reaction is the rate limiting step and the major site of regulation of bile acid synthesis, which is the primary mechanism for the removal of cholesterol from the body. Polymorphisms in the promoter of this gene are associated with defects in bile acid synthesis. [provided by RefSeq, Feb 2010]
PHENOTYPE: Mice homozygous for disruption of this gene experience severe neonatal and postnatal lethality. Supplementation of the maternal diet with fat soluble vitamins and cholic acid starting before birth alleviates much of the phenotype. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 28 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Bglap3 G C 3: 88,276,819 (GRCm39) probably benign Het
Cdh3 A G 8: 107,237,940 (GRCm39) T45A probably benign Het
Cdyl2 A G 8: 117,350,537 (GRCm39) V198A probably benign Het
Crygs C T 16: 22,624,301 (GRCm39) G102D possibly damaging Het
Dazap1 T A 10: 80,120,067 (GRCm39) M234K possibly damaging Het
Dnmt1 A T 9: 20,835,442 (GRCm39) probably benign Het
Dusp8 A G 7: 141,643,800 (GRCm39) Y38H probably damaging Het
Ewsr1 A G 11: 5,041,857 (GRCm39) probably null Het
Fem1b T C 9: 62,704,285 (GRCm39) H325R probably damaging Het
Flrt3 C A 2: 140,503,311 (GRCm39) V106F possibly damaging Het
Foxp2 T A 6: 15,409,938 (GRCm39) S513T possibly damaging Het
Gm5600 G T 7: 113,307,041 (GRCm39) noncoding transcript Het
Haspin A G 11: 73,026,911 (GRCm39) I726T probably benign Het
Lama4 T A 10: 38,918,563 (GRCm39) probably null Het
Lrrc7 A T 3: 157,876,298 (GRCm39) H597Q probably damaging Het
Mrc2 G A 11: 105,239,257 (GRCm39) probably null Het
Plcb4 C T 2: 135,781,893 (GRCm39) T238M probably damaging Het
Plekhd1 A G 12: 80,768,873 (GRCm39) probably null Het
Prph C G 15: 98,953,163 (GRCm39) probably benign Het
Rassf2 C T 2: 131,842,352 (GRCm39) probably null Het
Saal1 A G 7: 46,342,235 (GRCm39) F403L probably benign Het
Serpina3a C T 12: 104,082,758 (GRCm39) T177I probably benign Het
Slc23a2 C T 2: 131,936,115 (GRCm39) E52K possibly damaging Het
Stab2 T A 10: 86,790,338 (GRCm39) probably null Het
Syne3 T A 12: 104,935,493 (GRCm39) E95V probably damaging Het
Vmn1r58 G T 7: 5,413,939 (GRCm39) T97N probably damaging Het
Vmn2r61 T G 7: 41,916,287 (GRCm39) L300W probably damaging Het
Vps13a T C 19: 16,720,421 (GRCm39) E388G possibly damaging Het
Other mutations in Cyp7a1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01298:Cyp7a1 APN 4 6,275,517 (GRCm39) missense probably damaging 1.00
IGL01577:Cyp7a1 APN 4 6,273,618 (GRCm39) missense probably damaging 1.00
IGL01723:Cyp7a1 APN 4 6,272,442 (GRCm39) missense probably damaging 1.00
IGL02602:Cyp7a1 APN 4 6,272,871 (GRCm39) missense possibly damaging 0.88
IGL03302:Cyp7a1 APN 4 6,273,801 (GRCm39) missense probably benign 0.05
R1017:Cyp7a1 UTSW 4 6,272,307 (GRCm39) missense probably damaging 1.00
R1737:Cyp7a1 UTSW 4 6,272,848 (GRCm39) missense probably benign 0.00
R2044:Cyp7a1 UTSW 4 6,275,492 (GRCm39) missense probably null 1.00
R2867:Cyp7a1 UTSW 4 6,272,493 (GRCm39) missense probably damaging 0.99
R2867:Cyp7a1 UTSW 4 6,272,493 (GRCm39) missense probably damaging 0.99
R3438:Cyp7a1 UTSW 4 6,272,769 (GRCm39) missense probably damaging 1.00
R4181:Cyp7a1 UTSW 4 6,271,205 (GRCm39) missense probably benign 0.09
R4844:Cyp7a1 UTSW 4 6,273,655 (GRCm39) missense probably damaging 1.00
R5184:Cyp7a1 UTSW 4 6,271,207 (GRCm39) missense probably benign
R5371:Cyp7a1 UTSW 4 6,268,378 (GRCm39) missense probably damaging 1.00
R5613:Cyp7a1 UTSW 4 6,272,799 (GRCm39) missense probably damaging 1.00
R5682:Cyp7a1 UTSW 4 6,268,429 (GRCm39) missense probably benign 0.28
R5987:Cyp7a1 UTSW 4 6,268,476 (GRCm39) missense probably benign 0.05
R5995:Cyp7a1 UTSW 4 6,272,371 (GRCm39) missense possibly damaging 0.74
R6128:Cyp7a1 UTSW 4 6,272,788 (GRCm39) missense possibly damaging 0.80
R6552:Cyp7a1 UTSW 4 6,272,361 (GRCm39) nonsense probably null
R6860:Cyp7a1 UTSW 4 6,272,587 (GRCm39) missense probably damaging 1.00
R7032:Cyp7a1 UTSW 4 6,268,463 (GRCm39) missense possibly damaging 0.94
R7631:Cyp7a1 UTSW 4 6,272,763 (GRCm39) missense possibly damaging 0.89
R7884:Cyp7a1 UTSW 4 6,272,697 (GRCm39) missense probably benign 0.04
R8289:Cyp7a1 UTSW 4 6,268,295 (GRCm39) missense probably damaging 1.00
R8681:Cyp7a1 UTSW 4 6,271,207 (GRCm39) missense probably benign
R8721:Cyp7a1 UTSW 4 6,268,273 (GRCm39) missense probably damaging 1.00
R8931:Cyp7a1 UTSW 4 6,271,238 (GRCm39) missense possibly damaging 0.57
R9613:Cyp7a1 UTSW 4 6,272,587 (GRCm39) missense probably damaging 1.00
R9748:Cyp7a1 UTSW 4 6,269,216 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- CGCTCAGCAGTCGTTACATC -3'
(R):5'- GGCACGAGTACTAGAAACTTACC -3'

Sequencing Primer
(F):5'- AGCAGTCGTTACATCATCCAGTG -3'
(R):5'- CGAGTACTAGAAACTTACCTTTTGGG -3'
Posted On 2014-10-30