Incidental Mutation 'R3876:Stxbp2'
ID 276843
Institutional Source Beutler Lab
Gene Symbol Stxbp2
Ensembl Gene ENSMUSG00000004626
Gene Name syntaxin binding protein 2
Synonyms muSec1, C79054, Sxtp2, Munc18b, Munc-18b, Munc-18-2
MMRRC Submission 041606-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R3876 (G1)
Quality Score 225
Status Validated
Chromosome 8
Chromosomal Location 3680955-3693644 bp(+) (GRCm39)
Type of Mutation critical splice donor site (2 bp from exon)
DNA Base Change (assembly) T to C at 3683369 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000125405 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000159888] [ENSMUST00000159911] [ENSMUST00000159911] [ENSMUST00000160708] [ENSMUST00000162867]
AlphaFold Q64324
Predicted Effect probably null
Transcript: ENSMUST00000004745
SMART Domains Protein: ENSMUSP00000004745
Gene: ENSMUSG00000004626

DomainStartEndE-ValueType
Pfam:Sec1 29 580 6.8e-113 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000159888
Predicted Effect probably null
Transcript: ENSMUST00000159911
Predicted Effect probably null
Transcript: ENSMUST00000159911
Predicted Effect noncoding transcript
Transcript: ENSMUST00000160435
Predicted Effect probably null
Transcript: ENSMUST00000160708
SMART Domains Protein: ENSMUSP00000125405
Gene: ENSMUSG00000004626

DomainStartEndE-ValueType
Pfam:Sec1 29 579 4.9e-112 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000161982
Predicted Effect noncoding transcript
Transcript: ENSMUST00000162737
Predicted Effect probably benign
Transcript: ENSMUST00000162867
Predicted Effect noncoding transcript
Transcript: ENSMUST00000163044
Predicted Effect noncoding transcript
Transcript: ENSMUST00000162974
Meta Mutation Damage Score 0.9592 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.7%
  • 10x: 97.5%
  • 20x: 95.9%
Validation Efficiency 100% (53/53)
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 STXBP/unc-18/SEC1 family. The encoded protein is involved in intracellular trafficking, control of SNARE (soluble NSF attachment protein receptor) complex assembly, and the release of cytotoxic granules by natural killer cells. Mutations in this gene are associated with familial hemophagocytic lymphohistiocytosis. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Jan 2013]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit complete preweaning lethality. Mice heterozygous for this allele exhibit decreased stimulated mucin secretion, release of histones in stimulated mast cells and decreased susceptibility to type I hypersensitivity reaction. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 50 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4931414P19Rik G A 14: 54,828,857 (GRCm39) R215* probably null Het
Brinp2 C A 1: 158,074,416 (GRCm39) L568F probably damaging Het
Brip1 T C 11: 86,043,616 (GRCm39) Y316C probably damaging Het
Cdk5rap2 ATGTG ATG 4: 70,208,214 (GRCm39) probably null Het
Cfap69 G T 5: 5,634,645 (GRCm39) probably benign Het
Chrnb4 T C 9: 54,951,182 (GRCm39) E27G probably damaging Het
Clec14a A G 12: 58,315,430 (GRCm39) V64A possibly damaging Het
Crygs A G 16: 22,625,262 (GRCm39) Y60H probably damaging Het
Dpp10 T A 1: 123,281,216 (GRCm39) Q611L probably damaging Het
Entpd1 T C 19: 40,725,264 (GRCm39) L450P probably damaging Het
Eogt G A 6: 97,097,151 (GRCm39) S317L probably damaging Het
Exosc10 T A 4: 148,657,376 (GRCm39) S584T probably benign Het
Fam184a C T 10: 53,575,157 (GRCm39) V151I probably damaging Het
Fbxo43 A G 15: 36,152,258 (GRCm39) V517A probably damaging Het
Flii T C 11: 60,610,698 (GRCm39) T533A possibly damaging Het
Frmpd1 T G 4: 45,284,093 (GRCm39) H971Q probably benign Het
Gata3 A T 2: 9,867,954 (GRCm39) N333K probably damaging Het
Hectd1 A G 12: 51,815,513 (GRCm39) S1525P probably damaging Het
Ibtk A G 9: 85,600,479 (GRCm39) I816T probably benign Het
Kirrel1 C T 3: 86,996,458 (GRCm39) M380I probably null Het
Krt34 T C 11: 99,931,791 (GRCm39) T143A probably benign Het
Lipn G T 19: 34,046,828 (GRCm39) M43I probably benign Het
Lrp1b A G 2: 41,335,206 (GRCm39) C779R probably damaging Het
Mios G A 6: 8,233,189 (GRCm39) R779Q probably damaging Het
Mme A T 3: 63,269,480 (GRCm39) probably benign Het
Ncstn A G 1: 171,897,640 (GRCm39) S418P probably benign Het
Oprk1 T A 1: 5,672,884 (GRCm39) C340* probably null Het
Or10d1c T A 9: 38,894,166 (GRCm39) Y58F probably damaging Het
Or4c29 T C 2: 88,739,952 (GRCm39) T262A possibly damaging Het
Or4k39 T C 2: 111,238,967 (GRCm39) V69A possibly damaging Het
Or6c210 C T 10: 129,496,143 (GRCm39) P156L probably benign Het
Or6z7 G A 7: 6,484,131 (GRCm39) A8V probably benign Het
Pald1 T A 10: 61,183,266 (GRCm39) N323Y probably damaging Het
Pcdhac1 C A 18: 37,224,945 (GRCm39) A586E probably damaging Het
Pcnx2 C T 8: 126,614,897 (GRCm39) A185T probably benign Het
Pik3r1 G A 13: 101,821,465 (GRCm39) H430Y probably benign Het
Polr3b G A 10: 84,556,382 (GRCm39) probably null Het
Prl8a6 A T 13: 27,617,015 (GRCm39) L225* probably null Het
Psme4 T C 11: 30,806,068 (GRCm39) S89P probably damaging Het
Pygl G A 12: 70,248,113 (GRCm39) T250I probably damaging Het
Rgs13 T A 1: 144,016,528 (GRCm39) K72* probably null Het
Ryr2 T A 13: 11,603,045 (GRCm39) I4514F probably damaging Het
Septin3 A T 15: 82,170,002 (GRCm39) D32V probably damaging Het
Sfrp2 C T 3: 83,674,335 (GRCm39) P163S possibly damaging Het
Spata31 A G 13: 65,068,745 (GRCm39) T298A probably benign Het
Syne1 A T 10: 5,002,345 (GRCm39) M282K possibly damaging Het
Timd2 T C 11: 46,561,847 (GRCm39) probably null Het
Tlr11 G A 14: 50,600,611 (GRCm39) V866I probably benign Het
Trappc10 T C 10: 78,056,020 (GRCm39) probably null Het
Zfp512b AG AGG 2: 181,230,556 (GRCm39) probably null Het
Other mutations in Stxbp2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00160:Stxbp2 APN 8 3,686,354 (GRCm39) critical splice acceptor site probably null
IGL00466:Stxbp2 APN 8 3,684,065 (GRCm39) missense probably benign 0.29
IGL02315:Stxbp2 APN 8 3,685,607 (GRCm39) unclassified probably benign
IGL02508:Stxbp2 APN 8 3,682,531 (GRCm39) missense probably damaging 1.00
IGL02811:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02833:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02868:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02869:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02896:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02926:Stxbp2 APN 8 3,685,629 (GRCm39) missense probably benign 0.31
IGL02927:Stxbp2 APN 8 3,692,685 (GRCm39) missense possibly damaging 0.95
IGL02928:Stxbp2 APN 8 3,691,736 (GRCm39) missense probably damaging 0.99
IGL02943:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02945:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02948:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02951:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02972:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02976:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02977:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02983:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL02993:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL03008:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL03009:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL03038:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL03051:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL03061:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL03072:Stxbp2 APN 8 3,691,971 (GRCm39) missense probably benign 0.44
IGL03110:Stxbp2 APN 8 3,683,342 (GRCm39) missense probably damaging 1.00
IGL02988:Stxbp2 UTSW 8 3,683,267 (GRCm39) intron probably benign
R0463:Stxbp2 UTSW 8 3,682,559 (GRCm39) missense probably damaging 1.00
R0608:Stxbp2 UTSW 8 3,682,559 (GRCm39) missense probably damaging 1.00
R0755:Stxbp2 UTSW 8 3,692,019 (GRCm39) missense probably benign 0.01
R1328:Stxbp2 UTSW 8 3,692,657 (GRCm39) missense possibly damaging 0.56
R1771:Stxbp2 UTSW 8 3,684,064 (GRCm39) missense probably benign 0.01
R1962:Stxbp2 UTSW 8 3,692,672 (GRCm39) missense probably benign 0.00
R2195:Stxbp2 UTSW 8 3,684,615 (GRCm39) splice site probably null
R2319:Stxbp2 UTSW 8 3,683,834 (GRCm39) missense possibly damaging 0.95
R3614:Stxbp2 UTSW 8 3,681,196 (GRCm39) missense possibly damaging 0.94
R3870:Stxbp2 UTSW 8 3,684,079 (GRCm39) missense probably damaging 1.00
R4703:Stxbp2 UTSW 8 3,682,521 (GRCm39) missense probably damaging 1.00
R6533:Stxbp2 UTSW 8 3,692,683 (GRCm39) missense probably benign 0.01
R6623:Stxbp2 UTSW 8 3,682,561 (GRCm39) missense probably damaging 1.00
R6665:Stxbp2 UTSW 8 3,691,998 (GRCm39) missense probably benign 0.41
R6798:Stxbp2 UTSW 8 3,691,180 (GRCm39) missense probably benign
R7152:Stxbp2 UTSW 8 3,682,583 (GRCm39) missense probably benign 0.33
R7326:Stxbp2 UTSW 8 3,691,151 (GRCm39) missense
R8237:Stxbp2 UTSW 8 3,685,695 (GRCm39) missense
R8268:Stxbp2 UTSW 8 3,682,234 (GRCm39) missense
R8709:Stxbp2 UTSW 8 3,683,914 (GRCm39) missense possibly damaging 0.50
R8811:Stxbp2 UTSW 8 3,689,541 (GRCm39) missense
R9018:Stxbp2 UTSW 8 3,692,627 (GRCm39) intron probably benign
R9043:Stxbp2 UTSW 8 3,684,478 (GRCm39) missense
R9048:Stxbp2 UTSW 8 3,687,218 (GRCm39) missense
R9212:Stxbp2 UTSW 8 3,686,220 (GRCm39) missense
R9421:Stxbp2 UTSW 8 3,682,264 (GRCm39) missense
R9643:Stxbp2 UTSW 8 3,686,392 (GRCm39) missense
Z1177:Stxbp2 UTSW 8 3,691,123 (GRCm39) missense probably benign
Predicted Primers PCR Primer
(F):5'- CCGAACCTTGACTGTAGCTCTTTAAG -3'
(R):5'- ACACATATACACTGGCATTTGC -3'

Sequencing Primer
(F):5'- ACTGTAGCTCTTTAAGTGGGGAAC -3'
(R):5'- TGGCATTTGCATACACATACACGG -3'
Posted On 2015-04-06