Incidental Mutation 'R2195:Stxbp2'
ID 266102
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 040197-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R2195 (G1)
Quality Score 225
Status Not validated
Chromosome 8
Chromosomal Location 3680955-3693644 bp(+) (GRCm39)
Type of Mutation splice site
DNA Base Change (assembly) A to G at 3684615 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000125405 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000159888] [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: ENSMUST00000159370
Predicted Effect probably benign
Transcript: ENSMUST00000159888
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: ENSMUST00000163044
Predicted Effect noncoding transcript
Transcript: ENSMUST00000162737
Predicted Effect noncoding transcript
Transcript: ENSMUST00000162974
Predicted Effect probably benign
Transcript: ENSMUST00000162867
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.7%
  • 10x: 97.6%
  • 20x: 96.1%
Validation Efficiency
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: 15 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ago2 A T 15: 72,991,318 (GRCm39) V540E probably benign Het
Cep295 T A 9: 15,243,617 (GRCm39) Q1613L probably damaging Het
Cib3 A T 8: 72,958,257 (GRCm39) I160N probably damaging Het
Col1a2 G A 6: 4,518,822 (GRCm39) probably benign Het
Coq10b T A 1: 55,100,457 (GRCm39) L47Q probably damaging Het
Impg2 T C 16: 56,080,497 (GRCm39) V767A probably benign Het
Kalrn C T 16: 33,810,180 (GRCm39) D2525N possibly damaging Het
Kmt2e T C 5: 23,707,194 (GRCm39) probably null Het
Marf1 T C 16: 13,929,563 (GRCm39) D1681G probably benign Het
Nid1 G T 13: 13,650,788 (GRCm39) V442L probably damaging Het
Or13a21 T C 7: 139,999,138 (GRCm39) T183A possibly damaging Het
Or8k32 T C 2: 86,369,247 (GRCm39) E2G probably benign Het
Ppfia1 T C 7: 144,069,844 (GRCm39) N363S probably damaging Het
Tnf A G 17: 35,420,089 (GRCm39) probably null Het
Zkscan7 T C 9: 122,724,686 (GRCm39) F552L possibly damaging 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
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
R3876:Stxbp2 UTSW 8 3,683,369 (GRCm39) critical splice donor site probably null
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
Posted On 2015-02-05