Incidental Mutation 'R6184:Stx1b'
ID 488146
Institutional Source Beutler Lab
Gene Symbol Stx1b
Ensembl Gene ENSMUSG00000030806
Gene Name syntaxin 1B
Synonyms Stx1b2
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.324) question?
Stock # R6184 (G1)
Quality Score 225.009
Status Not validated
Chromosome 7
Chromosomal Location 127403072-127423703 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 127407077 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Isoleucine at position 206 (T206I)
Ref Sequence ENSEMBL: ENSMUSP00000101874 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000046863] [ENSMUST00000106267] [ENSMUST00000106271] [ENSMUST00000106272] [ENSMUST00000154987] [ENSMUST00000156135]
AlphaFold P61264
Predicted Effect probably benign
Transcript: ENSMUST00000046863
SMART Domains Protein: ENSMUSP00000036245
Gene: ENSMUSG00000042289

DomainStartEndE-ValueType
Pfam:KR 11 147 3e-10 PFAM
Pfam:RmlD_sub_bind 11 198 8.1e-10 PFAM
Pfam:Polysacc_synt_2 12 140 4.6e-13 PFAM
Pfam:NmrA 12 142 1.9e-9 PFAM
Pfam:Epimerase 12 215 3.2e-25 PFAM
Pfam:GDP_Man_Dehyd 13 185 8.1e-17 PFAM
Pfam:3Beta_HSD 13 290 5.4e-99 PFAM
Pfam:NAD_binding_4 14 240 1.4e-15 PFAM
transmembrane domain 312 334 N/A INTRINSIC
Predicted Effect possibly damaging
Transcript: ENSMUST00000106267
AA Change: T206I

PolyPhen 2 Score 0.794 (Sensitivity: 0.85; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000101874
Gene: ENSMUSG00000030806
AA Change: T206I

DomainStartEndE-ValueType
SynN 24 145 1.99e-44 SMART
t_SNARE 186 253 4.32e-24 SMART
transmembrane domain 265 287 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000106271
SMART Domains Protein: ENSMUSP00000101878
Gene: ENSMUSG00000042289

DomainStartEndE-ValueType
Pfam:adh_short 10 143 1.3e-13 PFAM
Pfam:RmlD_sub_bind 10 186 3.7e-10 PFAM
Pfam:KR 11 140 5.7e-10 PFAM
Pfam:Polysacc_synt_2 12 140 2.8e-13 PFAM
Pfam:NmrA 12 141 2.7e-9 PFAM
Pfam:Epimerase 12 220 2.9e-26 PFAM
Pfam:NAD_binding_10 13 186 2.3e-11 PFAM
Pfam:3Beta_HSD 13 216 1e-70 PFAM
Pfam:NAD_binding_4 14 183 1.3e-17 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000106272
SMART Domains Protein: ENSMUSP00000101879
Gene: ENSMUSG00000042289

DomainStartEndE-ValueType
Pfam:adh_short 10 143 3.7e-13 PFAM
Pfam:RmlD_sub_bind 10 180 2.8e-9 PFAM
Pfam:KR 11 139 1.6e-9 PFAM
Pfam:Polysacc_synt_2 12 140 7.7e-13 PFAM
Pfam:NmrA 12 141 7.3e-9 PFAM
Pfam:Epimerase 12 215 7.1e-26 PFAM
Pfam:NAD_binding_10 13 179 1.1e-10 PFAM
Pfam:3Beta_HSD 13 188 6.1e-70 PFAM
Pfam:NAD_binding_4 14 187 1.5e-17 PFAM
Pfam:3Beta_HSD 177 261 4e-23 PFAM
transmembrane domain 281 303 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000132702
Predicted Effect noncoding transcript
Transcript: ENSMUST00000144748
Predicted Effect probably benign
Transcript: ENSMUST00000154987
Predicted Effect possibly damaging
Transcript: ENSMUST00000156135
AA Change: T60I

PolyPhen 2 Score 0.686 (Sensitivity: 0.86; Specificity: 0.92)
Predicted Effect noncoding transcript
Transcript: ENSMUST00000206297
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.6%
  • 10x: 98.2%
  • 20x: 95.1%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene belongs to a family of proteins thought to play a role in the exocytosis of synaptic vesicles. Vesicle exocytosis releases vesicular contents and is important to various cellular functions. For instance, the secretion of transmitters from neurons plays an important role in synaptic transmission. After exocytosis, the membrane and proteins from the vesicle are retrieved from the plasma membrane through the process of endocytosis. Mutations in this gene have been identified as one cause of fever-associated epilepsy syndromes. A possible link between this gene and Parkinson's disease has also been suggested. [provided by RefSeq, Jan 2015]
PHENOTYPE: Mice homozygous for a reporter allele that encodes an 'open' syntaxin-1B protein conformation are viable but display severe ataxia, reduced chromaffin vesicle docking, accelerated synaptic vesicle fusion, and lethal epileptic seizures after 2 weeks of age. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 45 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2410004P03Rik A G 12: 17,057,179 (GRCm39) F106S probably benign Het
Adgrv1 A T 13: 81,581,957 (GRCm39) F4696I probably benign Het
Ank2 T C 3: 126,756,047 (GRCm39) I1073V probably damaging Het
Card11 A T 5: 140,884,033 (GRCm39) D415E probably damaging Het
Clec16a G A 16: 10,390,792 (GRCm39) probably null Het
Coro2a T C 4: 46,540,504 (GRCm39) T472A probably benign Het
D130043K22Rik T A 13: 25,069,574 (GRCm39) F878I probably damaging Het
D5Ertd579e G T 5: 36,787,127 (GRCm39) D80E probably damaging Het
Ddrgk1 A T 2: 130,506,481 (GRCm39) V2E possibly damaging Het
Disp1 T C 1: 182,867,896 (GRCm39) H1508R probably benign Het
Dmtf1 T C 5: 9,176,656 (GRCm39) N344S probably benign Het
Eml5 A G 12: 98,829,388 (GRCm39) V503A possibly damaging Het
Fat1 A G 8: 45,406,429 (GRCm39) H1060R probably benign Het
Fbxw8 C T 5: 118,251,814 (GRCm39) R233Q probably damaging Het
Fer1l4 T C 2: 155,890,211 (GRCm39) K238R probably damaging Het
Flg T A 3: 93,187,357 (GRCm39) S270T probably benign Het
Gm10801 TC TCGCC 2: 98,494,151 (GRCm39) probably benign Het
Gm3604 A T 13: 62,519,659 (GRCm39) V32D probably damaging Het
Gnl2 T G 4: 124,948,022 (GRCm39) probably null Het
Gpr162 A G 6: 124,838,204 (GRCm39) S149P probably damaging Het
Il2ra T A 2: 11,652,790 (GRCm39) probably benign Het
Kics2 T C 10: 121,586,810 (GRCm39) L375P probably damaging Het
Kmt5b T A 19: 3,854,499 (GRCm39) M254K probably damaging Het
Lrriq3 T C 3: 154,835,039 (GRCm39) I258T probably benign Het
Mbnl1 T C 3: 60,523,165 (GRCm39) L328S probably damaging Het
Mboat2 A G 12: 25,001,430 (GRCm39) D277G possibly damaging Het
Mug2 A G 6: 122,014,005 (GRCm39) I364V probably benign Het
Myh7 G A 14: 55,226,315 (GRCm39) R442C probably damaging Het
Nin A G 12: 70,090,511 (GRCm39) L968P probably damaging Het
Or1l8 T C 2: 36,817,404 (GRCm39) T241A probably damaging Het
Or5w14 A T 2: 87,542,188 (GRCm39) Y21N probably benign Het
Or8g53 T G 9: 39,683,916 (GRCm39) Y60S probably damaging Het
Per1 C T 11: 68,993,730 (GRCm39) P403S probably damaging Het
Ppip5k2 T C 1: 97,661,730 (GRCm39) I723V possibly damaging Het
Ptprg A G 14: 12,153,943 (GRCm38) T555A probably benign Het
Rgsl1 C T 1: 153,703,194 (GRCm39) M187I probably benign Het
Sec31a A G 5: 100,517,453 (GRCm39) probably null Het
Sptbn5 C T 2: 119,889,898 (GRCm39) probably benign Het
Sry C G Y: 2,662,975 (GRCm39) Q228H unknown Het
Tsc22d4 T A 5: 137,757,351 (GRCm39) M35K probably damaging Het
Zc2hc1c A G 12: 85,343,218 (GRCm39) K452E probably damaging Het
Zfp386 A G 12: 116,024,133 (GRCm39) N582S possibly damaging Het
Zfp457 A G 13: 67,440,976 (GRCm39) V437A possibly damaging Het
Zfp599 T C 9: 22,160,947 (GRCm39) Y406C probably benign Het
Zfyve26 G A 12: 79,315,501 (GRCm39) S1325F probably damaging Het
Other mutations in Stx1b
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00540:Stx1b APN 7 127,409,870 (GRCm39) missense probably damaging 1.00
IGL02730:Stx1b APN 7 127,414,549 (GRCm39) missense probably benign 0.37
IGL03394:Stx1b APN 7 127,407,056 (GRCm39) missense probably damaging 1.00
R0680:Stx1b UTSW 7 127,406,895 (GRCm39) missense possibly damaging 0.80
R1141:Stx1b UTSW 7 127,410,098 (GRCm39) splice site probably null
R1511:Stx1b UTSW 7 127,414,144 (GRCm39) missense probably damaging 0.99
R2024:Stx1b UTSW 7 127,414,575 (GRCm39) missense probably benign 0.00
R2116:Stx1b UTSW 7 127,410,077 (GRCm39) missense probably damaging 1.00
R4964:Stx1b UTSW 7 127,407,093 (GRCm39) missense probably damaging 1.00
R4966:Stx1b UTSW 7 127,407,093 (GRCm39) missense probably damaging 1.00
R5385:Stx1b UTSW 7 127,414,575 (GRCm39) missense probably benign 0.00
R5386:Stx1b UTSW 7 127,414,575 (GRCm39) missense probably benign 0.00
R5777:Stx1b UTSW 7 127,410,090 (GRCm39) nonsense probably null
R6092:Stx1b UTSW 7 127,407,035 (GRCm39) missense possibly damaging 0.94
R6688:Stx1b UTSW 7 127,407,068 (GRCm39) missense probably damaging 1.00
R6843:Stx1b UTSW 7 127,414,151 (GRCm39) nonsense probably null
R7493:Stx1b UTSW 7 127,406,531 (GRCm39) missense possibly damaging 0.88
R7919:Stx1b UTSW 7 127,406,507 (GRCm39) missense probably benign 0.19
R8401:Stx1b UTSW 7 127,406,945 (GRCm39) splice site probably benign
R9164:Stx1b UTSW 7 127,414,159 (GRCm39) missense probably benign
R9608:Stx1b UTSW 7 127,406,551 (GRCm39) missense probably damaging 0.99
Predicted Primers PCR Primer
(F):5'- ACAGCTTTCTTGGTGTCAGAC -3'
(R):5'- TATCACTACACAAGGATTTGAACCC -3'

Sequencing Primer
(F):5'- TGTCAGACACGGCTCGTTC -3'
(R):5'- GATTTGAACCCAAACCCTCTGTTG -3'
Posted On 2017-10-10