Incidental Mutation 'R3700:Snapin'
ID 269943
Institutional Source Beutler Lab
Gene Symbol Snapin
Ensembl Gene ENSMUSG00000001018
Gene Name SNAP-associated protein
Synonyms Snap25bp, Snapap, Bloc1s7
MMRRC Submission 040693-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R3700 (G1)
Quality Score 219
Status Validated
Chromosome 3
Chromosomal Location 90395333-90398320 bp(-) (GRCm39)
Type of Mutation nonsense
DNA Base Change (assembly) G to A at 90397499 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Stop codon at position 91 (R91*)
Ref Sequence ENSEMBL: ENSMUSP00000122090 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000001042] [ENSMUST00000149884] [ENSMUST00000184877] [ENSMUST00000185005]
AlphaFold Q9Z266
Predicted Effect probably benign
Transcript: ENSMUST00000001042
SMART Domains Protein: ENSMUSP00000001042
Gene: ENSMUSG00000001016

DomainStartEndE-ValueType
low complexity region 2 26 N/A INTRINSIC
DZF 98 338 5.01e-142 SMART
low complexity region 353 390 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000107351
Predicted Effect noncoding transcript
Transcript: ENSMUST00000107352
Predicted Effect probably null
Transcript: ENSMUST00000149884
AA Change: R91*
SMART Domains Protein: ENSMUSP00000122090
Gene: ENSMUSG00000001018
AA Change: R91*

DomainStartEndE-ValueType
low complexity region 2 19 N/A INTRINSIC
Pfam:Snapin_Pallidin 23 110 5.8e-31 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000184877
SMART Domains Protein: ENSMUSP00000139315
Gene: ENSMUSG00000001018

DomainStartEndE-ValueType
low complexity region 2 19 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000185005
SMART Domains Protein: ENSMUSP00000139160
Gene: ENSMUSG00000001018

DomainStartEndE-ValueType
low complexity region 2 19 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000196769
Predicted Effect noncoding transcript
Transcript: ENSMUST00000198641
Predicted Effect noncoding transcript
Transcript: ENSMUST00000198325
Meta Mutation Damage Score 0.9755 question?
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.5%
  • 10x: 97.0%
  • 20x: 94.2%
Validation Efficiency 98% (51/52)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene is a coiled-coil-forming protein that associates with the SNARE (soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptor) complex of proteins and the BLOC-1 (biogenesis of lysosome-related organelles) complex. Biochemical studies have identified additional binding partners. As part of the SNARE complex, it is required for vesicle docking and fusion and regulates neurotransmitter release. The BLOC-1 complex is required for the biogenesis of specialized organelles such as melanosomes and platelet dense granules. Mutations in gene products that form the BLOC-1 complex have been identified in mouse strains that are models of Hermansky-Pudlak syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2012]
PHENOTYPE: Homozygous mice die shortly after birth. No obvious brain morphological abnormalities are seen. Calcium-dependent exocytosis in adrenal chromaffin cells is reduced due to a reduced number of secretory vesicles in releasable pools. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 51 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Alpk2 G A 18: 65,438,222 (GRCm39) T1524I probably damaging Het
Ankrd29 G A 18: 12,387,757 (GRCm39) A275V possibly damaging Het
Arhgap26 T A 18: 39,253,237 (GRCm39) F221L probably damaging Het
Arhgap28 T C 17: 68,208,361 (GRCm39) S36G probably damaging Het
Bcl11a A G 11: 24,113,890 (GRCm39) D411G probably damaging Het
Cdh23 C A 10: 60,163,149 (GRCm39) probably null Het
Cnnm2 T A 19: 46,750,990 (GRCm39) I260N probably damaging Het
Coro6 T C 11: 77,358,129 (GRCm39) F238S probably damaging Het
Ddah1 G A 3: 145,597,250 (GRCm39) M162I probably benign Het
Dnah5 T C 15: 28,387,937 (GRCm39) I3132T possibly damaging Het
Drgx A T 14: 32,350,818 (GRCm39) E218V probably damaging Het
Dync2i1 C T 12: 116,175,462 (GRCm39) W905* probably null Het
Eif3f A T 7: 108,539,482 (GRCm39) I251F probably benign Het
Ephx4 T C 5: 107,550,673 (GRCm39) F11L probably benign Het
Esp1 T C 17: 41,041,998 (GRCm39) S97P unknown Het
Fbxw10 A T 11: 62,759,983 (GRCm39) probably null Het
Hsp90ab1 T C 17: 45,882,440 (GRCm39) T85A possibly damaging Het
Idh2 T C 7: 79,748,895 (GRCm39) K129E probably damaging Het
Kcnj6 A G 16: 94,633,865 (GRCm39) I64T probably damaging Het
Klk1b5 T A 7: 43,500,251 (GRCm39) C280S probably damaging Het
Lhx2 T A 2: 38,250,111 (GRCm39) L269H probably damaging Het
Lrrc71 T A 3: 87,653,185 (GRCm39) probably null Het
Lss T A 10: 76,382,026 (GRCm39) L484Q probably damaging Het
Mmp14 G A 14: 54,669,389 (GRCm39) probably benign Het
Muc5b A G 7: 141,400,986 (GRCm39) T534A unknown Het
Mysm1 T C 4: 94,858,889 (GRCm39) K87E probably benign Het
Or6d13 T A 6: 116,517,489 (GRCm39) V25E probably benign Het
Or6f2 C G 7: 139,756,127 (GRCm39) F37L possibly damaging Het
Pcolce T C 5: 137,607,309 (GRCm39) T61A probably damaging Het
Phc3 C A 3: 30,968,277 (GRCm39) D920Y probably damaging Het
Pi4kb T C 3: 94,901,599 (GRCm39) I422T probably benign Het
Piezo1 C T 8: 123,221,642 (GRCm39) R584H probably damaging Het
Plce1 T A 19: 38,693,781 (GRCm39) F768Y probably damaging Het
Ppp1r21 T C 17: 88,889,882 (GRCm39) S709P possibly damaging Het
Prdx6 T C 1: 161,074,858 (GRCm39) D74G probably damaging Het
Rlf A G 4: 121,008,060 (GRCm39) F307L possibly damaging Het
Skic2 T C 17: 35,068,879 (GRCm39) E40G probably benign Het
Sort1 T A 3: 108,263,955 (GRCm39) L838* probably null Het
Sstr4 A G 2: 148,238,273 (GRCm39) I295V possibly damaging Het
Stk39 T A 2: 68,222,462 (GRCm39) I201F probably damaging Het
Tasp1 T C 2: 139,752,474 (GRCm39) T322A probably benign Het
Tepsin C T 11: 119,982,579 (GRCm39) C491Y possibly damaging Het
Tlr9 G A 9: 106,101,278 (GRCm39) V190M probably damaging Het
Ttf2 A G 3: 100,858,324 (GRCm39) L755P probably damaging Het
Txn2 G A 15: 77,811,976 (GRCm39) T60M possibly damaging Het
Vmn1r10 A G 6: 57,091,287 (GRCm39) N293S probably benign Het
Vmn1r232 A G 17: 21,134,465 (GRCm39) L45P probably benign Het
Vmn2r111 C T 17: 22,790,142 (GRCm39) W288* probably null Het
Vmn2r118 T C 17: 55,915,421 (GRCm39) S510G possibly damaging Het
Zgpat T A 2: 181,007,439 (GRCm39) probably benign Het
Zzef1 G T 11: 72,777,598 (GRCm39) G1810C probably null Het
Other mutations in Snapin
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01099:Snapin APN 3 90,397,909 (GRCm39) intron probably benign
R0532:Snapin UTSW 3 90,396,893 (GRCm39) missense probably damaging 1.00
R1925:Snapin UTSW 3 90,397,539 (GRCm39) missense possibly damaging 0.83
R4794:Snapin UTSW 3 90,398,092 (GRCm39) intron probably benign
Predicted Primers PCR Primer
(F):5'- CCCCATAGTTGCTTCACAGTG -3'
(R):5'- CCAAGGACTCCAATTTCTGGG -3'

Sequencing Primer
(F):5'- CCCATAGTTGCTTCACAGTGTTGAAG -3'
(R):5'- CCAATTTCTGGGGATATTTTAGGAC -3'
Posted On 2015-03-18