Incidental Mutation 'BB011:Star'
ID 642639
Institutional Source Beutler Lab
Gene Symbol Star
Ensembl Gene ENSMUSG00000031574
Gene Name steroidogenic acute regulatory protein
Synonyms D8Ertd419e
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # BB011
Quality Score 225.009
Status Not validated
Chromosome 8
Chromosomal Location 26298502-26306010 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 26299883 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Threonine at position 75 (I75T)
Ref Sequence ENSEMBL: ENSMUSP00000033979 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000033979] [ENSMUST00000210565]
AlphaFold P51557
Predicted Effect possibly damaging
Transcript: ENSMUST00000033979
AA Change: I75T

PolyPhen 2 Score 0.721 (Sensitivity: 0.86; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000033979
Gene: ENSMUSG00000031574
AA Change: I75T

DomainStartEndE-ValueType
START 75 280 3.63e-72 SMART
Predicted Effect possibly damaging
Transcript: ENSMUST00000210565
AA Change: I75T

PolyPhen 2 Score 0.721 (Sensitivity: 0.86; Specificity: 0.92)
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.6%
  • 20x: 98.8%
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 plays a key role in the acute regulation of steroid hormone synthesis by enhancing the conversion of cholesterol into pregnenolone. This protein permits the cleavage of cholesterol into pregnenolone by mediating the transport of cholesterol from the outer mitochondrial membrane to the inner mitochondrial membrane. Mutations in this gene are a cause of congenital lipoid adrenal hyperplasia (CLAH), also called lipoid CAH. A pseudogene of this gene is located on chromosome 13. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygous null mice fail to thrive and die during the postnatal period due to adrenocortical insufficiency. Mice exhibit male pseudohermaprhoditism and show a progressive accumulation of lipids within steroidogenic cells of the adrenal glands and gonads. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 73 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acacb A G 5: 114,383,281 (GRCm39) K2155E possibly damaging Het
Adgre5 G A 8: 84,456,029 (GRCm39) P256S possibly damaging Het
Adipor1 T A 1: 134,353,731 (GRCm39) V172D probably damaging Het
Ahsa1 T C 12: 87,317,230 (GRCm39) probably null Het
Ankrd11 T C 8: 123,622,641 (GRCm39) I404V possibly damaging Het
Asxl3 G A 18: 22,658,602 (GRCm39) R2204Q probably damaging Het
Barhl2 A G 5: 106,605,515 (GRCm39) S65P unknown Het
Bbx A T 16: 50,044,671 (GRCm39) L630H probably damaging Het
Cars1 T C 7: 143,123,608 (GRCm39) T531A possibly damaging Het
Catsperb T A 12: 101,486,824 (GRCm39) H450Q probably benign Het
Cdt1 T C 8: 123,296,091 (GRCm39) L135P probably damaging Het
Cfap206 T A 4: 34,728,833 (GRCm39) H24L probably benign Het
Cilk1 T C 9: 78,062,746 (GRCm39) L260P probably damaging Het
Cnga4 T A 7: 105,057,028 (GRCm39) V480E probably benign Het
Cnot1 ACG A 8: 96,472,275 (GRCm39) probably null Het
Ctcfl G A 2: 172,955,449 (GRCm39) T271I possibly damaging Het
Dlc1 T C 8: 37,038,570 (GRCm39) R1003G probably benign Het
Dnah7b A G 1: 46,258,590 (GRCm39) D1927G probably benign Het
Dscc1 A T 15: 54,945,572 (GRCm39) D374E probably benign Het
Eci2 G A 13: 35,177,053 (GRCm39) Q69* probably null Het
Ep300 C A 15: 81,533,703 (GRCm39) P1920Q unknown Het
Epha5 A G 5: 84,232,705 (GRCm39) Y629H possibly damaging Het
Fat2 G A 11: 55,153,613 (GRCm39) T3533I probably benign Het
Fat3 T C 9: 15,910,593 (GRCm39) N1803S probably damaging Het
Fcrl2 T C 3: 87,166,840 (GRCm39) Y51C probably damaging Het
G530012D18Rik C G 1: 85,504,935 (GRCm39) D113E unknown Het
Gcnt2 A T 13: 41,072,040 (GRCm39) K228* probably null Het
Gucy2c A T 6: 136,740,053 (GRCm39) V258E probably benign Het
Hecw1 C A 13: 14,497,113 (GRCm39) L298F probably damaging Het
Hydin T G 8: 111,145,103 (GRCm39) V818G possibly damaging Het
Hykk A G 9: 54,829,524 (GRCm39) Y131C probably damaging Het
Mpo A G 11: 87,685,666 (GRCm39) D48G probably damaging Het
Mrps10 T C 17: 47,689,208 (GRCm39) *202Q probably null Het
Mrps14 T C 1: 160,024,559 (GRCm39) V30A probably benign Het
Mtmr7 G A 8: 41,059,927 (GRCm39) A62V possibly damaging Het
Muc2 G T 7: 141,281,631 (GRCm39) G497W probably damaging Het
Nnt A T 13: 119,523,181 (GRCm39) V237D probably damaging Het
Nox4 G T 7: 87,023,589 (GRCm39) V492L probably benign Het
Obscn C G 11: 59,003,381 (GRCm39) E1306Q probably benign Het
Or5ak23 T C 2: 85,244,563 (GRCm39) Y220C probably benign Het
Or6aa1 A G 7: 86,043,938 (GRCm39) I256T probably damaging Het
Pard3 A G 8: 128,137,231 (GRCm39) N861S probably benign Het
Pdlim4 G A 11: 53,946,048 (GRCm39) R230* probably null Het
Pinlyp C T 7: 24,241,550 (GRCm39) V159M possibly damaging Het
Plcb1 A T 2: 135,201,613 (GRCm39) T855S probably benign Het
Pot1a T A 6: 25,753,309 (GRCm39) D409V possibly damaging Het
Prom1 T C 5: 44,187,111 (GRCm39) D382G probably benign Het
Prss16 A T 13: 22,192,834 (GRCm39) N83K probably damaging Het
Ptprn2 A G 12: 116,804,884 (GRCm39) D133G probably benign Het
Rasef C T 4: 73,659,166 (GRCm39) probably null Het
Rbak A G 5: 143,160,241 (GRCm39) S271P probably damaging Het
Rbm20 A T 19: 53,666,016 (GRCm39) I60F possibly damaging Het
Rftn1 G T 17: 50,354,408 (GRCm39) A318D probably damaging Het
Rsf1 G GACGGCCGCC 7: 97,229,116 (GRCm39) probably benign Het
Serpinb3c A G 1: 107,200,904 (GRCm39) L171P probably damaging Het
Slc25a19 T C 11: 115,506,376 (GRCm39) Y211C unknown Het
Sorbs2 C T 8: 46,248,507 (GRCm39) S586L probably damaging Het
Spesp1 A T 9: 62,180,733 (GRCm39) S58R probably benign Het
Spryd3 A G 15: 102,026,762 (GRCm39) I329T probably benign Het
St8sia2 G A 7: 73,616,700 (GRCm39) L113F probably damaging Het
Tasor2 A T 13: 3,644,331 (GRCm39) F129Y possibly damaging Het
Tdrd6 T A 17: 43,938,697 (GRCm39) I784F possibly damaging Het
Tex55 G A 16: 38,632,826 (GRCm39) Q369* probably null Het
Tsc22d4 A G 5: 137,766,273 (GRCm39) I144V unknown Het
Tspan8 T C 10: 115,669,229 (GRCm39) probably null Het
Ttll9 C T 2: 152,804,407 (GRCm39) probably benign Het
Ubr4 T G 4: 139,194,587 (GRCm39) L1160R unknown Het
Ufd1 A G 16: 18,642,035 (GRCm39) Y162C possibly damaging Het
Unc13c A T 9: 73,641,690 (GRCm39) F1268I probably benign Het
Uvssa T C 5: 33,568,295 (GRCm39) I561T probably damaging Het
Vmn2r15 A T 5: 109,434,254 (GRCm39) S817T probably damaging Het
Ybx1 T C 4: 119,139,476 (GRCm39) E173G probably damaging Het
Zc3h6 T C 2: 128,857,400 (GRCm39) S640P possibly damaging Het
Other mutations in Star
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00970:Star APN 8 26,302,894 (GRCm39) splice site probably null
IGL01337:Star APN 8 26,299,892 (GRCm39) missense probably damaging 1.00
IGL02165:Star APN 8 26,302,843 (GRCm39) missense possibly damaging 0.75
IGL03274:Star APN 8 26,301,082 (GRCm39) missense possibly damaging 0.72
BB001:Star UTSW 8 26,299,883 (GRCm39) missense possibly damaging 0.72
R1327:Star UTSW 8 26,299,865 (GRCm39) missense probably benign 0.45
R3816:Star UTSW 8 26,299,905 (GRCm39) missense probably benign 0.15
R4790:Star UTSW 8 26,298,644 (GRCm39) missense probably damaging 0.99
R5490:Star UTSW 8 26,299,945 (GRCm39) missense probably damaging 1.00
R6362:Star UTSW 8 26,301,835 (GRCm39) missense probably benign 0.18
R6964:Star UTSW 8 26,301,851 (GRCm39) missense probably benign 0.00
R7924:Star UTSW 8 26,299,883 (GRCm39) missense possibly damaging 0.72
R8805:Star UTSW 8 26,299,577 (GRCm39) missense probably benign 0.01
R8882:Star UTSW 8 26,302,897 (GRCm39) missense probably benign 0.00
R9126:Star UTSW 8 26,302,832 (GRCm39) missense probably benign 0.10
Predicted Primers PCR Primer
(F):5'- CTGCCAGTGATGGGTCTTAG -3'
(R):5'- TGAATGCAGTGGGAATCCC -3'

Sequencing Primer
(F):5'- TTGACCTGCAAGCAGAGC -3'
(R):5'- AATCCCGGCAGGCTTTGAG -3'
Posted On 2020-08-01