Incidental Mutation 'R4782:Xbp1'
Institutional Source Beutler Lab
Gene Symbol Xbp1
Ensembl Gene ENSMUSG00000020484
Gene NameX-box binding protein 1
SynonymsXBP-1, D11Ertd39e, TREB-5, TREB5
Accession Numbers

Genbank: NM_013842; MGI: 98970; Ensembl: ENSMUST00000109866

Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R4782 (G1)
Quality Score165
Status Not validated
Chromosomal Location5520659-5525893 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) C to T at 5521167 bp
Amino Acid Change Threonine to Methionine at position 58 (T58M)
Ref Sequence ENSEMBL: ENSMUSP00000054852 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000063084] [ENSMUST00000149623]
Predicted Effect probably damaging
Transcript: ENSMUST00000063084
AA Change: T58M

PolyPhen 2 Score 0.998 (Sensitivity: 0.27; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000054852
Gene: ENSMUSG00000020484
AA Change: T58M

low complexity region 2 17 N/A INTRINSIC
BRLZ 61 125 9.12e-18 SMART
low complexity region 185 198 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000145588
Predicted Effect probably benign
Transcript: ENSMUST00000149159
SMART Domains Protein: ENSMUSP00000134088
Gene: ENSMUSG00000020484

BRLZ 2 57 2.62e-9 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000149623
SMART Domains Protein: ENSMUSP00000135768
Gene: ENSMUSG00000020484

BRLZ 11 72 3.68e-13 SMART
low complexity region 132 145 N/A INTRINSIC
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 94.4%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a transcription factor that regulates MHC class II genes by binding to a promoter element referred to as an X box. This gene product is a bZIP protein, which was also identified as a cellular transcription factor that binds to an enhancer in the promoter of the T cell leukemia virus type 1 promoter. It may increase expression of viral proteins by acting as the DNA binding partner of a viral transactivator. It has been found that upon accumulation of unfolded proteins in the endoplasmic reticulum (ER), the mRNA of this gene is processed to an active form by an unconventional splicing mechanism that is mediated by the endonuclease inositol-requiring enzyme 1 (IRE1). The resulting loss of 26 nt from the spliced mRNA causes a frame-shift and an isoform XBP1(S), which is the functionally active transcription factor. The isoform encoded by the unspliced mRNA, XBP1(U), is constitutively expressed, and thought to function as a negative feedback regulator of XBP1(S), which shuts off transcription of target genes during the recovery phase of ER stress. A pseudogene of XBP1 has been identified and localized to chromosome 5. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygous mutants exhibit markedly impaired liver development resulting in severe anemia, necrosis of cardiac myocytes, morphological abnormalities of the neural tube, and fetal death around embryonic day 14. [provided by MGI curators]
Allele List at MGI

All alleles(16) : Targeted, knock-out(3) Targeted, other(6) Gene trapped(7)

Other mutations in this stock
Total: 121 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca13 A G 11: 9,328,096 E3092G probably damaging Het
Abhd12b C G 12: 70,169,064 S170C probably damaging Het
Abtb2 A T 2: 103,717,299 D1006V probably benign Het
Adgrl1 A G 8: 83,935,573 H1021R probably benign Het
Ago3 A T 4: 126,347,872 probably null Het
Ahnak A G 19: 9,012,499 probably benign Het
Akap6 CA C 12: 52,887,623 probably null Het
Amotl2 T G 9: 102,720,123 probably null Het
Ankrd34b T A 13: 92,438,305 I15N probably damaging Het
Ap3d1 C T 10: 80,721,586 probably null Het
Appl2 A T 10: 83,600,991 D635E probably damaging Het
Arid1b C T 17: 5,339,221 P1681S probably damaging Het
Atp10a T C 7: 58,791,095 M496T probably benign Het
Atp2c2 A G 8: 119,749,152 K595E probably damaging Het
Atpaf2 T C 11: 60,404,412 H204R probably damaging Het
Atr G A 9: 95,862,797 V56I probably benign Het
Bod1l G A 5: 41,833,663 T183I probably benign Het
Btbd11 A C 10: 85,654,550 I1027L probably damaging Het
Ccdc171 A T 4: 83,681,016 E689D probably damaging Het
Cdc73 T A 1: 143,627,875 Q346L probably benign Het
Chd2 A T 7: 73,484,436 M721K possibly damaging Het
Col22a1 T A 15: 71,801,925 T981S unknown Het
Col4a3bp T C 13: 96,612,265 V281A probably benign Het
Cpox G A 16: 58,672,623 A207T probably damaging Het
Cym G A 3: 107,216,097 T160I possibly damaging Het
D130043K22Rik T C 13: 24,878,040 I664T probably damaging Het
Ddx4 C T 13: 112,613,696 probably null Het
Ddx4 A T 13: 112,651,360 V15E probably benign Het
Depdc1a G A 3: 159,526,636 E675K probably damaging Het
Dglucy A T 12: 100,850,343 M415L probably benign Het
Dlg4 C T 11: 70,026,954 P21L probably damaging Het
Dmxl1 A T 18: 49,862,992 N395I probably damaging Het
Dzank1 A T 2: 144,504,399 C249S probably damaging Het
Efnb2 A T 8: 8,623,104 probably null Het
Ercc6l2 T G 13: 63,834,738 I244S probably damaging Het
Ewsr1 A T 11: 5,070,423 M584K unknown Het
Fam193b A G 13: 55,543,471 S197P probably damaging Het
Fanca A G 8: 123,288,202 V689A probably damaging Het
Fbxo31 A T 8: 121,552,439 Y436* probably null Het
Fbxo31 A G 8: 121,552,441 Y436H probably damaging Het
Fcna T A 2: 25,625,326 D215V probably damaging Het
Foxj3 A T 4: 119,621,660 S438C unknown Het
Gcm2 T C 13: 41,103,494 K260E possibly damaging Het
Gcnt4 A T 13: 96,947,406 L403F possibly damaging Het
Gdf10 A G 14: 33,931,913 T126A probably benign Het
Ggcx A G 6: 72,428,892 K569E probably benign Het
Gm10250 C T 15: 5,121,096 probably benign Het
Gm8251 T C 1: 44,059,043 D965G possibly damaging Het
Gpnmb G T 6: 49,045,483 probably null Het
Ifi44 G A 3: 151,745,592 P241S probably damaging Het
Irs1 T C 1: 82,287,463 T1011A probably benign Het
Jag2 A T 12: 112,914,249 S595T probably benign Het
Kif5a T A 10: 127,230,954 Q960L probably benign Het
Kifc2 A G 15: 76,664,348 E430G possibly damaging Het
Lama3 T A 18: 12,411,570 C323* probably null Het
Lgsn T C 1: 31,203,742 Y302H probably benign Het
Lmbrd1 G A 1: 24,744,975 probably null Het
Lrpap1 A G 5: 35,099,278 V120A probably damaging Het
Macrod2 T A 2: 140,419,938 D46E possibly damaging Het
Mbd4 C A 6: 115,845,322 R63L possibly damaging Het
Mfsd10 T C 5: 34,634,949 probably benign Het
Mib2 G T 4: 155,659,772 S144R probably benign Het
Muc5b T A 7: 141,847,716 C566* probably null Het
Ndufs1 C A 1: 63,160,949 G268V probably damaging Het
Nfs1 A G 2: 156,134,449 V175A possibly damaging Het
Ngb G A 12: 87,100,225 H73Y probably benign Het
Npepps G A 11: 97,226,826 T549I probably damaging Het
Nr1h2 A G 7: 44,550,499 V329A possibly damaging Het
Nsun6 T C 2: 15,036,326 I151M possibly damaging Het
Ofcc1 T C 13: 40,001,892 probably null Het
Olfr1388 T A 11: 49,443,869 F6Y probably benign Het
Olfr262 C T 19: 12,241,572 V30I probably benign Het
Olfr372 A G 8: 72,058,094 N138S probably benign Het
Olfr391-ps C T 11: 73,798,839 C306Y probably benign Het
Olfr555 T A 7: 102,658,834 N4K possibly damaging Het
Olfr910 A G 9: 38,539,075 Y60C probably damaging Het
Parp6 A G 9: 59,634,984 probably null Het
Pcnt C A 10: 76,409,577 R1075S possibly damaging Het
Pla2g4f T C 2: 120,303,276 E548G probably damaging Het
Polrmt G T 10: 79,739,523 H725N probably benign Het
Pou2f3 T C 9: 43,139,858 T178A probably damaging Het
Prtn3 C A 10: 79,882,065 P169H probably damaging Het
Ptprd A G 4: 76,091,532 I764T probably benign Het
Ptprh A T 7: 4,569,577 H467Q probably benign Het
Raph1 A T 1: 60,489,114 I996N probably damaging Het
Rasa4 G A 5: 136,091,229 W53* probably null Het
Rasgrp1 C T 2: 117,284,875 R744Q probably benign Het
Rmnd5a T C 6: 71,413,349 E141G probably damaging Het
Rps12 T C 10: 23,786,790 I51M possibly damaging Het
Scn10a T G 9: 119,622,910 S1316R possibly damaging Het
Sdhb A G 4: 140,977,466 H246R possibly damaging Het
Setx G A 2: 29,144,046 R332Q probably damaging Het
Siglec1 A C 2: 131,075,923 S1011R probably damaging Het
Sin3b A C 8: 72,725,643 I126L probably benign Het
Slc11a1 T G 1: 74,384,088 L366R probably damaging Het
Slc12a1 C T 2: 125,161,079 R177* probably null Het
Slc30a1 A C 1: 191,909,048 K269Q probably benign Het
Slco1a5 T C 6: 142,248,807 Y370C possibly damaging Het
Slf2 T A 19: 44,934,925 probably null Het
Sltm A G 9: 70,589,057 H958R probably damaging Het
Snrnp40 A G 4: 130,362,756 I91M probably damaging Het
Spta1 A T 1: 174,230,666 Q1900L probably benign Het
Srgn C T 10: 62,497,852 E49K possibly damaging Het
Ssu2 A C 6: 112,376,450 C238G probably damaging Het
Terf2 G T 8: 107,076,675 H425Q probably benign Het
Thra G A 11: 98,756,164 S37N probably benign Het
Toporsl A G 4: 52,610,845 D246G probably damaging Het
Ubap2l G A 3: 90,020,903 T553M probably damaging Het
Usp10 A G 8: 119,941,191 Y77C probably benign Het
Utrn T C 10: 12,750,069 T123A probably damaging Het
Vmn1r204 T G 13: 22,556,697 F166C probably benign Het
Vmn2r14 T C 5: 109,221,504 I68V probably benign Het
Wls C T 3: 159,897,445 T165I probably benign Het
Wsb1 A G 11: 79,240,373 M399T probably benign Het
Zbtb46 A T 2: 181,391,136 D577E probably benign Het
Zfp366 A G 13: 99,246,483 D718G probably damaging Het
Zfp408 A T 2: 91,645,024 V595E possibly damaging Het
Zfp493 T A 13: 67,786,203 W60R probably null Het
Zfp606 A T 7: 12,494,005 K626N probably damaging Het
Zfp820 A T 17: 21,818,985 L454Q probably benign Het
Zswim5 A G 4: 116,972,972 I515V probably benign Het
Other mutations in Xbp1
AlleleSourceChrCoordTypePredicted EffectPPH Score
R1601:Xbp1 UTSW 11 5521975 missense probably damaging 1.00
R2256:Xbp1 UTSW 11 5524841 missense probably damaging 1.00
R4647:Xbp1 UTSW 11 5522006 missense probably damaging 1.00
R4964:Xbp1 UTSW 11 5521125 missense probably damaging 0.98
R5367:Xbp1 UTSW 11 5521910 missense probably benign
R5718:Xbp1 UTSW 11 5521903 missense probably benign 0.00
R5928:Xbp1 UTSW 11 5523514 intron probably benign
R6038:Xbp1 UTSW 11 5524798 missense probably benign 0.00
R6038:Xbp1 UTSW 11 5524798 missense probably benign 0.00
R6492:Xbp1 UTSW 11 5521005 missense probably benign
R6835:Xbp1 UTSW 11 5521809 start gained probably benign
R6955:Xbp1 UTSW 11 5522018 missense probably null 0.97
Predicted Primers PCR Primer

Sequencing Primer
Posted On2015-12-29