Incidental Mutation 'D3080:Hyou1'
ID127
Institutional Source Beutler Lab
Gene Symbol Hyou1
Ensembl Gene ENSMUSG00000032115
Gene Namehypoxia up-regulated 1
SynonymsGrp170, Cab140, Orp150, 140 kDa, CBP-140
Accession Numbers

Genbank: NM_021395; MGI: 108030

Is this an essential gene? Essential (E-score: 1.000) question?
Stock #D3080 of strain grasshopper
Quality Score
Status Validated
Chromosome9
Chromosomal Location44379490-44392369 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 44384477 bp
ZygosityHeterozygous
Amino Acid Change Valine to Glutamic Acid at position 343 (V343E)
Ref Sequence ENSEMBL: ENSMUSP00000123700 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000066601] [ENSMUST00000159473] [ENSMUST00000160902] [ENSMUST00000161318] [ENSMUST00000162560] [ENSMUST00000217019]
Predicted Effect probably damaging
Transcript: ENSMUST00000066601
AA Change: V343E

PolyPhen 2 Score 0.972 (Sensitivity: 0.77; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000068594
Gene: ENSMUSG00000032115
AA Change: V343E

DomainStartEndE-ValueType
signal peptide 1 28 N/A INTRINSIC
Pfam:HSP70 35 669 1.3e-101 PFAM
Pfam:HSP70 690 814 2.1e-6 PFAM
low complexity region 970 986 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000159473
SMART Domains Protein: ENSMUSP00000124177
Gene: ENSMUSG00000032115

DomainStartEndE-ValueType
signal peptide 1 25 N/A INTRINSIC
Pfam:HSP70 38 226 2e-37 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000160112
Predicted Effect probably damaging
Transcript: ENSMUST00000160902
AA Change: V343E

PolyPhen 2 Score 0.972 (Sensitivity: 0.77; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000125594
Gene: ENSMUSG00000032115
AA Change: V343E

DomainStartEndE-ValueType
signal peptide 1 28 N/A INTRINSIC
Pfam:HSP70 35 671 3.8e-101 PFAM
Pfam:HSP70 690 814 1.2e-6 PFAM
low complexity region 970 986 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000161318
AA Change: V343E

PolyPhen 2 Score 0.972 (Sensitivity: 0.77; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000123700
Gene: ENSMUSG00000032115
AA Change: V343E

DomainStartEndE-ValueType
signal peptide 1 28 N/A INTRINSIC
Pfam:HSP70 35 671 3.8e-101 PFAM
Pfam:HSP70 690 814 1.2e-6 PFAM
low complexity region 970 986 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000161537
Predicted Effect probably benign
Transcript: ENSMUST00000162560
SMART Domains Protein: ENSMUSP00000123749
Gene: ENSMUSG00000032115

DomainStartEndE-ValueType
signal peptide 1 28 N/A INTRINSIC
Pfam:HSP70 35 168 6.5e-20 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000217019
Meta Mutation Damage Score 0.9228 question?
Coding Region Coverage
  • 1x: 88.9%
  • 3x: 76.7%
Validation Efficiency 82% (141/173)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene belongs to the heat shock protein 70 family. This gene uses alternative transcription start sites. A cis-acting segment found in the 5' UTR is involved in stress-dependent induction, resulting in the accumulation of this protein in the endoplasmic reticulum (ER) under hypoxic conditions. The protein encoded by this gene is thought to play an important role in protein folding and secretion in the ER. Since suppression of the protein is associated with accelerated apoptosis, it is also suggested to have an important cytoprotective role in hypoxia-induced cellular perturbation. This protein has been shown to be up-regulated in tumors, especially in breast tumors, and thus it is associated with tumor invasiveness. This gene also has an alternative translation initiation site, resulting in a protein that lacks the N-terminal signal peptide. This signal peptide-lacking protein, which is only 3 amino acids shorter than the mature protein in the ER, is thought to have a housekeeping function in the cytosol. In rat, this protein localizes to both the ER by a carboxy-terminal peptide sequence and to mitochondria by an amino-terminal targeting signal. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2014]
PHENOTYPE: Homozygous null mice display embryonic lethality. Heterozygous mice display increased susceptibility to induced neuronal cell death. [provided by MGI curators]
Allele List at MGI

All alleles(6) : Targeted, knock-out(1) Gene trapped(5)

Other mutations in this stock
Total: 20 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2310003L06Rik C A 5: 87,971,987 P201Q possibly damaging Het
Bdp1 A T 13: 100,023,621 S2417R probably benign Het
Dscaml1 A T 9: 45,684,325 H783L probably benign Het
Fbxl5 A T 5: 43,758,366 M568K probably benign Het
Gab1 T A 8: 80,766,378 D710V probably damaging Homo
Gabrr2 T C 4: 33,084,466 F128S probably damaging Het
Gm8251 C A 1: 44,067,335 Het
Nlrp4a A G 7: 26,444,341 T44A probably benign Het
Nsd3 C A 8: 25,713,545 T1362N possibly damaging Homo
Olfr523 G A 7: 140,176,362 V81M possibly damaging Het
Pcm1 T A 8: 41,275,939 N649K probably damaging Homo
Pde4dip T C 3: 97,766,830 K257E probably damaging Het
Pfpl G A 19: 12,428,832 R149Q probably damaging Homo
Pou2f2 G T 7: 25,097,133 probably benign Het
Rptn A G 3: 93,395,828 D156G possibly damaging Het
Sec31a T C 5: 100,363,832 D1107G probably damaging Het
Smyd3 A G 1: 179,086,422 Y239H probably damaging Het
Stoml3 T C 3: 53,497,994 F32S probably benign Het
Tnnc1 C A 14: 31,210,190 D62E probably damaging Homo
Vsig10 C T 5: 117,343,819 A358V probably damaging Het
Other mutations in Hyou1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00815:Hyou1 APN 9 44385146 missense probably benign 0.02
IGL01660:Hyou1 APN 9 44381117 missense possibly damaging 0.75
IGL01677:Hyou1 APN 9 44382012 missense probably benign 0.21
IGL01903:Hyou1 APN 9 44381141 splice site probably benign
IGL02636:Hyou1 APN 9 44381410 critical splice donor site probably null
IGL02806:Hyou1 APN 9 44388883 nonsense probably null
IGL03401:Hyou1 APN 9 44384909 missense probably damaging 1.00
IGL03410:Hyou1 APN 9 44388058 missense probably benign
ANU74:Hyou1 UTSW 9 44381263 missense possibly damaging 0.79
PIT4378001:Hyou1 UTSW 9 44390851 missense probably benign 0.26
R0408:Hyou1 UTSW 9 44384692 missense probably damaging 1.00
R0422:Hyou1 UTSW 9 44389242 missense probably damaging 1.00
R1116:Hyou1 UTSW 9 44384681 missense probably damaging 1.00
R1581:Hyou1 UTSW 9 44388870 missense probably damaging 1.00
R1640:Hyou1 UTSW 9 44389406 missense probably benign 0.02
R1803:Hyou1 UTSW 9 44384182 nonsense probably null
R2060:Hyou1 UTSW 9 44381552 missense probably benign 0.28
R2180:Hyou1 UTSW 9 44388019 missense probably benign 0.30
R2233:Hyou1 UTSW 9 44389091 missense probably benign 0.44
R2235:Hyou1 UTSW 9 44389091 missense probably benign 0.44
R3950:Hyou1 UTSW 9 44385227 missense probably damaging 1.00
R4198:Hyou1 UTSW 9 44388859 missense probably damaging 1.00
R4200:Hyou1 UTSW 9 44388859 missense probably damaging 1.00
R4363:Hyou1 UTSW 9 44380615 splice site probably null
R4393:Hyou1 UTSW 9 44381872 missense probably damaging 1.00
R4394:Hyou1 UTSW 9 44381872 missense probably damaging 1.00
R4812:Hyou1 UTSW 9 44387121 intron probably benign
R5239:Hyou1 UTSW 9 44385263 missense possibly damaging 0.96
R5648:Hyou1 UTSW 9 44385249 missense probably damaging 0.99
R5818:Hyou1 UTSW 9 44388926 critical splice donor site probably null
R5856:Hyou1 UTSW 9 44381344 missense probably damaging 1.00
R6431:Hyou1 UTSW 9 44382025 critical splice donor site probably null
R6594:Hyou1 UTSW 9 44389322 missense probably benign
R6596:Hyou1 UTSW 9 44387755 missense probably benign 0.00
R6613:Hyou1 UTSW 9 44382498 missense probably damaging 0.99
R6704:Hyou1 UTSW 9 44381134 critical splice donor site probably null
R6849:Hyou1 UTSW 9 44387264 missense probably damaging 0.99
R7494:Hyou1 UTSW 9 44389409 missense probably benign 0.04
R7632:Hyou1 UTSW 9 44381136 splice site probably null
R7711:Hyou1 UTSW 9 44384462 missense possibly damaging 0.91
R8064:Hyou1 UTSW 9 44385585 missense possibly damaging 0.80
R8287:Hyou1 UTSW 9 44388133 missense probably benign 0.26
X0027:Hyou1 UTSW 9 44390856 missense possibly damaging 0.89
Z1176:Hyou1 UTSW 9 44387742 nonsense probably null
Nature of Mutation
DNA sequencing using the SOLiD technique identified a T to A transversion at position 1141 of the Hyou1 transcript. The mutated nucleotide causes a valine to glutamic acid substitution at amino acid 343 of the encoded protein. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).
Protein Function and Prediction
The Hyou1 gene encodes a 999 amino acid endoplasmic reticulum (ER) protein known as GRP-170 that has a pivotal role in cytoprotective cellular mechanisms triggered by oxygen deprivation. GRP-170 may play a role as a molecular chaperone and participate in protein folding. GRP-170 is part of a large chaperone multiprotein complex (Uniprot Q9JKR6). Homozygous null mice display embryonic lethality. Heterozygous mice display increased susceptibility to induced neuronal cell death.
 
The V343E change is predicted to be probably damaging by the PolyPhen program.
Posted On2010-03-12