Incidental Mutation 'R6533:Stxbp2'
ID 520191
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 044659-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R6533 (G1)
Quality Score 225.009
Status Validated
Chromosome 8
Chromosomal Location 3680955-3693644 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 3692683 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Glutamic Acid at position 578 (D578E)
Ref Sequence ENSEMBL: ENSMUSP00000125405 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000160708]
AlphaFold Q64324
Predicted Effect unknown
Transcript: ENSMUST00000004745
AA Change: D578E
SMART Domains Protein: ENSMUSP00000004745
Gene: ENSMUSG00000004626
AA Change: D578E

DomainStartEndE-ValueType
Pfam:Sec1 29 580 6.8e-113 PFAM
Predicted Effect unknown
Transcript: ENSMUST00000159370
AA Change: D109E
Predicted Effect noncoding transcript
Transcript: ENSMUST00000159652
Predicted Effect noncoding transcript
Transcript: ENSMUST00000160435
Predicted Effect probably benign
Transcript: ENSMUST00000160708
AA Change: D578E

PolyPhen 2 Score 0.009 (Sensitivity: 0.96; Specificity: 0.77)
SMART Domains Protein: ENSMUSP00000125405
Gene: ENSMUSG00000004626
AA Change: D578E

DomainStartEndE-ValueType
Pfam:Sec1 29 579 4.9e-112 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000161629
Predicted Effect noncoding transcript
Transcript: ENSMUST00000162047
Predicted Effect noncoding transcript
Transcript: ENSMUST00000162832
Meta Mutation Damage Score 0.0949 question?
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.4%
  • 20x: 98.2%
Validation Efficiency 100% (44/44)
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: 44 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700010B08Rik C T 2: 173,561,628 (GRCm39) probably benign Het
4932414N04Rik G T 2: 68,546,662 (GRCm39) E115* probably null Het
Abhd16a G A 17: 35,317,785 (GRCm39) probably null Het
Ankrd28 T A 14: 31,454,041 (GRCm39) I244L possibly damaging Het
Barx2 T C 9: 31,824,275 (GRCm39) Y38C probably damaging Het
Btn2a2 C A 13: 23,665,951 (GRCm39) E294* probably null Het
Ceacam2 C G 7: 25,230,136 (GRCm39) V157L probably benign Het
Ces2c T A 8: 105,578,725 (GRCm39) F334L possibly damaging Het
Col7a1 T C 9: 108,790,426 (GRCm39) I958T unknown Het
Dcp2 T A 18: 44,532,731 (GRCm39) D82E probably benign Het
Dnah8 T C 17: 30,965,964 (GRCm39) L2432S probably damaging Het
Dst A G 1: 34,342,590 (GRCm39) D7582G probably benign Het
Fat3 T A 9: 15,910,195 (GRCm39) I1936L probably benign Het
Gsdmc4 T A 15: 63,763,909 (GRCm39) N396I probably damaging Het
Lonrf2 A C 1: 38,852,349 (GRCm39) D167E probably benign Het
Marf1 T C 16: 13,933,663 (GRCm39) D1575G probably benign Het
Med23 T C 10: 24,769,518 (GRCm39) L101P probably damaging Het
Myh3 A G 11: 66,981,245 (GRCm39) I703V probably damaging Het
Ncan G A 8: 70,549,007 (GRCm39) A1257V probably benign Het
Nipal4 A T 11: 46,041,234 (GRCm39) Y320* probably null Het
Obox5 A T 7: 15,491,532 (GRCm39) Q24L probably benign Het
Orc1 T C 4: 108,454,644 (GRCm39) S345P probably benign Het
P4hb A T 11: 120,462,469 (GRCm39) I79N probably damaging Het
Phf3 A T 1: 30,845,399 (GRCm39) I1262N probably damaging Het
Pigo A T 4: 43,022,697 (GRCm39) N291K probably benign Het
Ppargc1b C T 18: 61,440,845 (GRCm39) R691H possibly damaging Het
Ppm1m T C 9: 106,074,069 (GRCm39) probably benign Het
Ptprd A T 4: 76,046,765 (GRCm39) D500E probably damaging Het
Rab3gap2 T A 1: 184,965,151 (GRCm39) probably null Het
Rnf214 A G 9: 45,811,361 (GRCm39) S101P probably benign Het
Sdhc A G 1: 170,957,396 (GRCm39) S162P possibly damaging Het
Spta1 C T 1: 174,071,713 (GRCm39) T2231I probably damaging Het
Tacc2 A T 7: 130,224,567 (GRCm39) E417D possibly damaging Het
Tas2r144 A T 6: 42,192,280 (GRCm39) N7Y probably benign Het
Tasp1 A G 2: 139,676,277 (GRCm39) *421R probably null Het
Tigd5 A G 15: 75,782,039 (GRCm39) I134V possibly damaging Het
Tmem95 A T 11: 69,768,843 (GRCm39) M1K probably null Het
Trappc10 T C 10: 78,024,728 (GRCm39) M1134V probably damaging Het
Unc45a T G 7: 79,983,817 (GRCm39) K326N probably damaging Het
Vmn1r59 A G 7: 5,457,463 (GRCm39) V99A probably benign Het
Vmn2r4 T C 3: 64,322,519 (GRCm39) T67A probably benign Het
Vmn2r85 A T 10: 130,262,529 (GRCm39) M70K probably benign Het
Zftraf1 C A 15: 76,531,930 (GRCm39) E283* probably null Het
Zkscan8 A G 13: 21,704,748 (GRCm39) F325S probably 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
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
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
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'- AAGTTTCTGAACCCCTCAATCATTG -3'
(R):5'- CCCAGGTTCTCAGCGTTAATG -3'

Sequencing Primer
(F):5'- TCAATCATTGAGAAGACAGGGCCC -3'
(R):5'- CCAGGTTCTCAGCGTTAATGAAAGC -3'
Posted On 2018-06-06