Incidental Mutation 'R0920:Syna'
ID 82814
Institutional Source Beutler Lab
Gene Symbol Syna
Ensembl Gene ENSMUSG00000085957
Gene Name syncytin a
Synonyms syncytin-A, Gm52
MMRRC Submission 039070-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R0920 (G1)
Quality Score 225
Status Validated
Chromosome 5
Chromosomal Location 134587000-134589025 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 134587956 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Alanine at position 331 (V331A)
Ref Sequence ENSEMBL: ENSMUSP00000116437 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000149604]
AlphaFold Q5G5D5
Predicted Effect probably benign
Transcript: ENSMUST00000149604
AA Change: V331A

PolyPhen 2 Score 0.119 (Sensitivity: 0.93; Specificity: 0.86)
SMART Domains Protein: ENSMUSP00000116437
Gene: ENSMUSG00000085957
AA Change: V331A

DomainStartEndE-ValueType
signal peptide 1 17 N/A INTRINSIC
Pfam:TLV_coat 333 578 1.9e-59 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000200729
Predicted Effect noncoding transcript
Transcript: ENSMUST00000202523
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 99.4%
  • 3x: 98.9%
  • 10x: 97.6%
  • 20x: 95.9%
Validation Efficiency 100% (37/37)
MGI Phenotype FUNCTION: Many different endogenous retrovirus families are expressed in normal placental tissue at high levels, suggesting that endogenous retroviruses are functionally important in reproduction. This gene is part of a mouse endogenous retrovirus provirus on chromosome 5 that has inactivating mutations in the gag and pol genes. This gene is the envelope glycoprotein gene which appears to have been selectively preserved. The gene's protein product plays a major role in placental development and trophoblast fusion. The protein has the characteristics of a typical retroviral envelope protein, including a cleavage site that separates the surface (SU) and transmembrane (TM) proteins which form a heterodimer. [provided by RefSeq, Apr 2015]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit lethality between E11.5 and E14.5 associated with defective placental layrinth formation, impaired placental transport, and increased trophoblast cells. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 36 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aadacl4fm2 T C 4: 144,287,696 (GRCm39) probably benign Het
Adamts16 A G 13: 70,911,680 (GRCm39) probably benign Het
Adgra3 A G 5: 50,118,503 (GRCm39) V1015A probably benign Het
Armc5 G T 7: 127,839,491 (GRCm39) A270S probably damaging Het
Cacng1 A C 11: 107,596,682 (GRCm39) probably benign Het
Ccdc33 T C 9: 57,940,955 (GRCm39) D429G probably damaging Het
Ccdc88b G T 19: 6,824,017 (GRCm39) A1412E probably benign Het
Cfap298 C T 16: 90,724,267 (GRCm39) E125K probably damaging Het
Clock A T 5: 76,378,167 (GRCm39) S578T possibly damaging Het
Crp T C 1: 172,526,089 (GRCm39) F58S probably damaging Het
Dlg5 T A 14: 24,226,465 (GRCm39) Q125L probably damaging Het
Eif3i T C 4: 129,489,050 (GRCm39) probably benign Het
Gucy1a2 A C 9: 3,759,472 (GRCm39) D426A probably damaging Het
Hpcal1 C T 12: 17,841,098 (GRCm39) probably benign Het
Inf2 T A 12: 112,576,721 (GRCm39) probably benign Het
Kdm7a A G 6: 39,128,256 (GRCm39) L525P probably damaging Het
Kirrel3 A T 9: 34,939,648 (GRCm39) I152F probably damaging Het
Knl1 T A 2: 118,900,309 (GRCm39) I670K probably benign Het
Krt76 T C 15: 101,800,874 (GRCm39) T141A possibly damaging Het
Ldb3 T C 14: 34,289,460 (GRCm39) T249A probably benign Het
Magi3 A T 3: 103,941,507 (GRCm39) probably null Het
Mfn1 A G 3: 32,588,385 (GRCm39) probably null Het
Myb G T 10: 21,002,133 (GRCm39) T736K possibly damaging Het
Myo5b A C 18: 74,758,712 (GRCm39) K231T probably benign Het
Myt1l T A 12: 29,936,138 (GRCm39) C909S unknown Het
Npas4 C A 19: 5,036,344 (GRCm39) E607* probably null Het
Nphp3 A G 9: 103,909,106 (GRCm39) N772S probably benign Het
Nup88 G T 11: 70,847,146 (GRCm39) P288Q possibly damaging Het
Or2l13 A T 16: 19,305,680 (GRCm39) I31F probably benign Het
Pknox1 C A 17: 31,815,865 (GRCm39) Q240K probably damaging Het
Plce1 A C 19: 38,724,965 (GRCm39) T1439P probably damaging Het
Ppp1r42 T A 1: 10,069,750 (GRCm39) N104I probably damaging Het
Prkar2a T A 9: 108,596,496 (GRCm39) probably benign Het
Stox2 C T 8: 47,646,053 (GRCm39) R469Q probably damaging Het
Vmn1r58 A T 7: 5,413,788 (GRCm39) N147K probably benign Het
Zdhhc6 A T 19: 55,300,133 (GRCm39) L148H probably damaging Het
Other mutations in Syna
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00229:Syna APN 5 134,588,571 (GRCm39) missense possibly damaging 0.94
IGL01128:Syna APN 5 134,588,334 (GRCm39) missense probably damaging 0.99
IGL03183:Syna APN 5 134,587,144 (GRCm39) missense probably benign 0.03
R0051:Syna UTSW 5 134,588,397 (GRCm39) missense probably damaging 1.00
R0051:Syna UTSW 5 134,588,397 (GRCm39) missense probably damaging 0.99
R0137:Syna UTSW 5 134,588,314 (GRCm39) missense possibly damaging 0.93
R1525:Syna UTSW 5 134,588,112 (GRCm39) missense probably benign
R1801:Syna UTSW 5 134,588,943 (GRCm39) missense probably benign 0.02
R1813:Syna UTSW 5 134,588,006 (GRCm39) missense probably benign 0.06
R1866:Syna UTSW 5 134,588,769 (GRCm39) missense probably damaging 1.00
R1887:Syna UTSW 5 134,588,106 (GRCm39) missense probably benign
R1896:Syna UTSW 5 134,588,006 (GRCm39) missense probably benign 0.06
R2139:Syna UTSW 5 134,588,106 (GRCm39) nonsense probably null
R3896:Syna UTSW 5 134,587,165 (GRCm39) nonsense probably null
R4674:Syna UTSW 5 134,587,209 (GRCm39) missense probably damaging 0.99
R4730:Syna UTSW 5 134,587,440 (GRCm39) missense probably damaging 1.00
R5124:Syna UTSW 5 134,588,424 (GRCm39) missense possibly damaging 0.65
R5482:Syna UTSW 5 134,588,028 (GRCm39) missense possibly damaging 0.94
R6130:Syna UTSW 5 134,587,122 (GRCm39) missense possibly damaging 0.72
R6196:Syna UTSW 5 134,588,466 (GRCm39) missense probably benign 0.14
R6243:Syna UTSW 5 134,588,968 (GRCm39) start gained probably benign
R6945:Syna UTSW 5 134,587,815 (GRCm39) missense probably damaging 0.97
R7999:Syna UTSW 5 134,588,046 (GRCm39) missense probably benign
R8320:Syna UTSW 5 134,588,574 (GRCm39) missense possibly damaging 0.86
R8783:Syna UTSW 5 134,588,723 (GRCm39) missense probably benign 0.01
R8784:Syna UTSW 5 134,588,723 (GRCm39) missense probably benign 0.01
R8785:Syna UTSW 5 134,588,723 (GRCm39) missense probably benign 0.01
R8786:Syna UTSW 5 134,588,723 (GRCm39) missense probably benign 0.01
R8787:Syna UTSW 5 134,588,723 (GRCm39) missense probably benign 0.01
X0022:Syna UTSW 5 134,588,427 (GRCm39) missense probably benign 0.01
Z1088:Syna UTSW 5 134,587,383 (GRCm39) missense probably benign 0.01
Predicted Primers PCR Primer
(F):5'- CGAGAGAGCCTTGGAAAGCTGTTG -3'
(R):5'- CGGACAATTCGAGCCACCCTATTAC -3'

Sequencing Primer
(F):5'- CACAGTTGAGGTGGTGATACCC -3'
(R):5'- GAGCCACCCTATTACCCTGTC -3'
Posted On 2013-11-08