Mutagenetix > Incidental Mutation

Incidental Mutation 'R8933:Xbp1'

680467

Institutional Source

Beutler Lab

Gene Symbol

Xbp1

Ensembl Gene

ENSMUSG00000020484

Gene Name

X-box binding protein 1

Synonyms

XBP-1, D11Ertd39e, TREB-5, TREB5

MMRRC Submission

Accession Numbers

Genbank: NM_013842; MGI: 98970; Ensembl: ENSMUST00000109866

Essential gene?

Essential (E-score: 1.000) question?

Stock #

R8933 (G1)

Quality Score

225.009

Status

Validated

Chromosome

Chromosomal Location

5520659-5525893 bp(+) (GRCm38)

Type of Mutation

missense

DNA Base Change (assembly)

T to C at 5524741 bp (GRCm38)

Zygosity

Heterozygous

Amino Acid Change

Valine to Alanine at position 161 (V161A)

Ref Sequence

ENSEMBL: ENSMUSP00000135768 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000020776] [ENSMUST00000063084] [ENSMUST00000149623]

AlphaFold

O35426

Predicted Effect

probably benign
Transcript: ENSMUST00000020776

SMART Domains

Protein: ENSMUSP00000020776
Gene: ENSMUSG00000020482

Domain	Start	End	E-Value	Type
low complexity region	22	37	N/A	INTRINSIC
Pfam:CCDC117	139	277	1.9e-56	PFAM

Predicted Effect

probably benign
Transcript: ENSMUST00000063084
AA Change: V214A

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)

SMART Domains

Protein: ENSMUSP00000054852
Gene: ENSMUSG00000020484
AA Change: V214A

Domain	Start	End	E-Value	Type
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

probably benign
Transcript: ENSMUST00000149159

SMART Domains

Protein: ENSMUSP00000134088
Gene: ENSMUSG00000020484

Domain	Start	End	E-Value	Type
BRLZ	2	57	2.62e-9	SMART

Predicted Effect

probably benign
Transcript: ENSMUST00000149623
AA Change: V161A

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)

SMART Domains

Protein: ENSMUSP00000135768
Gene: ENSMUSG00000020484
AA Change: V161A

Domain	Start	End	E-Value	Type
BRLZ	11	72	3.68e-13	SMART
low complexity region	132	145	N/A	INTRINSIC

Coding Region Coverage

1x: 100.0%
3x: 99.9%
10x: 99.8%
20x: 99.2%

Validation Efficiency

100% (86/86)

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: 86 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
Abca4	T	A	3: 122,128,137	I1114N	probably damaging	Het
Ache	C	A	5: 137,290,187	R52S	possibly damaging	Het
AI182371	A	T	2: 35,085,702		probably null	Het
Ankrd17	T	C	5: 90,258,466	S1453G	probably damaging	Het
Arvcf	A	G	16: 18,400,095	N508S	probably damaging	Het
Aurkc	A	C	7: 7,002,797	D136A	possibly damaging	Het
Bfsp2	A	G	9: 103,448,649	M265T	probably benign	Het
Bmpr1b	T	C	3: 141,856,608	T273A	probably damaging	Het
Cacnb1	T	C	11: 98,005,752	K406R	probably damaging	Het
Calcoco2	C	T	11: 96,107,426		probably benign	Het
Capza1	T	C	3: 104,840,893		probably null	Het
Ccdc63	T	A	5: 122,113,202	I382F	probably damaging	Het
Cep350	A	T	1: 155,863,415	N2227K	probably benign	Het
Chia1	T	A	3: 106,129,017	Y304*	probably null	Het
Col5a2	G	A	1: 45,421,963	P258L		Het
Cyp21a1	A	G	17: 34,804,311	L30P	probably damaging	Het
Dennd4b	T	A	3: 90,279,216	H1351Q	probably benign	Het
Dnah9	T	A	11: 65,855,252	I4012F	possibly damaging	Het
Drd1	A	G	13: 54,053,271	I301T	possibly damaging	Het
Dzip1	T	A	14: 118,906,914	H369L	probably damaging	Het
Fgfrl1	T	A	5: 108,703,391	M58K	probably damaging	Het
Ftsj3	G	T	11: 106,250,834	D529E	probably benign	Het
Fut9	A	T	4: 25,619,861	W318R	probably damaging	Het
Gabrg3	A	G	7: 56,984,958	I159T	probably damaging	Het
Gabrr1	A	T	4: 33,146,972	D53V	probably benign	Het
Ggps1	A	G	13: 14,054,343	V85A	probably benign	Het
Gm5141	C	T	13: 62,777,040	W18*	probably null	Het
Grik5	T	A	7: 25,023,318	T518S	probably benign	Het
Hapln3	A	T	7: 79,117,630		probably benign	Het
Hbs1l	C	T	10: 21,367,685	Q646*	probably null	Het
Hmox1	T	C	8: 75,097,016	I104T	probably benign	Het
Ifit1bl1	T	C	19: 34,594,013	Y348C	probably damaging	Het
Igf2r	A	T	17: 12,701,244	S1403T	probably damaging	Het
Igf2r	G	A	17: 12,704,637	T1186M	probably damaging	Het
Igfbp1	T	C	11: 7,198,333		probably null	Het
Ikbip	C	A	10: 91,083,230	A35E	probably benign	Het
Isca1	C	T	13: 59,769,683	A8T	probably damaging	Het
Itgb2	T	C	10: 77,565,188	L754P	probably damaging	Het
Itgb6	C	T	2: 60,627,903	C502Y	probably damaging	Het
Kdm3a	A	G	6: 71,600,108	V741A	probably benign	Het
Kdsr	T	C	1: 106,753,219	D83G	possibly damaging	Het
Kiz	T	A	2: 146,942,117	N523K		Het
Kmt2a	T	C	9: 44,822,505		probably benign	Het
Krt25	T	C	11: 99,321,238	E191G	probably benign	Het
Lipn	A	G	19: 34,069,480	I61V	probably damaging	Het
Lmbr1l	T	A	15: 98,909,269		probably null	Het
Lrrc4c	A	G	2: 97,629,481	K151E	probably benign	Het
Mab21l3	T	C	3: 101,823,458	Q155R	probably benign	Het
Mtfr2	G	A	10: 20,357,528	R281H	possibly damaging	Het
Muc5ac	A	G	7: 141,789,756	Y35C	possibly damaging	Het
Myadm	C	T	7: 3,296,917	T65I	probably benign	Het
Nap1l1	T	C	10: 111,492,849	V213A	probably benign	Het
Nav2	A	G	7: 49,461,957	D737G	probably damaging	Het
Ndst4	T	A	3: 125,611,506	V470D	probably damaging	Het
Nek5	T	A	8: 22,111,210	Y165F	probably damaging	Het
Nek5	A	T	8: 22,120,843	V48E	probably damaging	Het
Nr6a1	T	C	2: 38,760,388	I77V	probably damaging	Het
Nvl	A	T	1: 181,139,073	D93E	probably benign	Het
Olfr450	A	G	6: 42,818,016	T182A	probably benign	Het
Olfr552	A	T	7: 102,604,430	L25F	probably damaging	Het
Olfr656	A	T	7: 104,617,666	T4S	probably benign	Het
Olfr678	A	G	7: 105,069,392		probably benign	Het
Olfr780	A	T	10: 129,322,390	I256F	probably damaging	Het
Olfr96	C	A	17: 37,225,455	T110K	possibly damaging	Het
Pla2g4c	G	A	7: 13,339,702	V225I	probably benign	Het
Plppr4	T	A	3: 117,323,041	N331I	probably damaging	Het
Ptpn13	A	G	5: 103,579,805	R2051G	probably benign	Het
Rbm45	T	C	2: 76,378,724	S346P	probably damaging	Het
Samd14	A	C	11: 95,021,201	D168A	probably damaging	Het
Slc15a1	C	T	14: 121,486,679	G172R	probably benign	Het
Slco3a1	G	T	7: 74,284,500	Y641*	probably null	Het
Srcap	G	A	7: 127,552,394	R2027H	probably damaging	Het
Stra8	A	T	6: 34,927,689		probably benign	Het
Syt11	T	C	3: 88,747,704	Y430C	probably damaging	Het
Tanc1	T	G	2: 59,785,456	V269G	possibly damaging	Het
Tead1	A	G	7: 112,898,611	N342S	probably benign	Het
Tenm3	C	T	8: 48,279,060	A1254T	possibly damaging	Het
Txlnb	A	T	10: 17,806,798	N156I	probably damaging	Het
Ufl1	A	T	4: 25,262,258	S409R	possibly damaging	Het
Usp17la	A	G	7: 104,861,100	H304R	probably benign	Het
Vmn1r203	T	A	13: 22,524,521	H157Q	possibly damaging	Het
Vmn1r37	C	T	6: 66,732,247	R249*	probably null	Het
Vmn2r96	A	G	17: 18,583,979	Q497R	probably benign	Het
Vps39	A	G	2: 120,338,585	S292P	probably benign	Het
Wnk1	A	G	6: 120,036,998	V212A	probably damaging	Het
Zfp113	T	C	5: 138,144,830	Q386R	probably damaging	Het

Other mutations in Xbp1

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH 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
R4782:Xbp1	UTSW	11	5521167	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
R7067:Xbp1	UTSW	11	5524275	missense	probably damaging	1.00
R7483:Xbp1	UTSW	11	5521098	missense	probably benign	0.02
R7502:Xbp1	UTSW	11	5524683	critical splice acceptor site	probably null
R7819:Xbp1	UTSW	11	5524886	missense	probably benign	0.01
R8024:Xbp1	UTSW	11	5521910	missense	probably benign
R8512:Xbp1	UTSW	11	5524266	missense	probably damaging	1.00

Predicted Primers

PCR Primer
(F):5'- GATCTGAGAGTGTAAGCCCTAAG -3'
(R):5'- TGAAGAGCTTAGAGGTGCTTCC -3'

Sequencing Primer
(F):5'- GCCCTAAGTAACATTGTGGAAC -3'
(R):5'- TCTGTCTCAGAGGGGATCTC -3'

Posted On

2021-08-31