Incidental Mutation 'R0716:Ssb'
ID 62849
Institutional Source Beutler Lab
Gene Symbol Ssb
Ensembl Gene ENSMUSG00000068882
Gene Name small RNA binding exonuclease protection factor La
Synonyms SS-B, Sjogren syndrome antigen B, La protein, autoantigen La
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R0716 (G1)
Quality Score 82
Status Not validated
Chromosome 2
Chromosomal Location 69691906-69702190 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 69697703 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Alanine at position 145 (T145A)
Ref Sequence ENSEMBL: ENSMUSP00000130313 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000060447] [ENSMUST00000090852] [ENSMUST00000112260] [ENSMUST00000132186] [ENSMUST00000142127] [ENSMUST00000166411]
AlphaFold P32067
Predicted Effect probably benign
Transcript: ENSMUST00000060447
SMART Domains Protein: ENSMUSP00000050907
Gene: ENSMUSG00000051730

DomainStartEndE-ValueType
low complexity region 2 10 N/A INTRINSIC
Pfam:Cons_hypoth95 21 184 1.8e-12 PFAM
Pfam:UPF0020 25 170 3.8e-8 PFAM
Pfam:PrmA 35 127 8.4e-14 PFAM
Pfam:MTS 36 174 2.2e-16 PFAM
Pfam:Methyltransf_31 49 199 4e-15 PFAM
Pfam:Methyltransf_18 51 171 8.1e-11 PFAM
Pfam:Methyltransf_15 52 179 1.1e-9 PFAM
Pfam:Methyltransf_26 52 182 3.9e-8 PFAM
Pfam:Methyltransf_25 55 171 5.2e-8 PFAM
Pfam:Methyltransf_11 56 131 8e-6 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000090852
AA Change: T145A

PolyPhen 2 Score 0.062 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000088365
Gene: ENSMUSG00000068882
AA Change: T145A

DomainStartEndE-ValueType
LA 11 92 2.19e-42 SMART
RRM 112 183 1.6e-4 SMART
Pfam:RRM_3 230 333 2.2e-32 PFAM
low complexity region 375 386 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000112260
AA Change: T145A

PolyPhen 2 Score 0.013 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000107879
Gene: ENSMUSG00000068882
AA Change: T145A

DomainStartEndE-ValueType
LA 11 92 2.19e-42 SMART
RRM 112 183 1.6e-4 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000132186
AA Change: T145A

PolyPhen 2 Score 0.016 (Sensitivity: 0.95; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000119773
Gene: ENSMUSG00000068882
AA Change: T145A

DomainStartEndE-ValueType
LA 11 92 2.19e-42 SMART
Pfam:RRM_1 113 154 2.6e-6 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000132603
SMART Domains Protein: ENSMUSP00000115666
Gene: ENSMUSG00000068882

DomainStartEndE-ValueType
Pfam:RRM_3 46 149 2.5e-33 PFAM
low complexity region 190 201 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000135459
Predicted Effect probably benign
Transcript: ENSMUST00000142127
SMART Domains Protein: ENSMUSP00000121474
Gene: ENSMUSG00000051730

DomainStartEndE-ValueType
low complexity region 2 10 N/A INTRINSIC
Pfam:Cons_hypoth95 21 141 8.7e-12 PFAM
Pfam:UPF0020 24 141 1.4e-11 PFAM
Pfam:Methyltransf_16 31 126 5e-7 PFAM
Pfam:PrmA 34 127 4e-15 PFAM
Pfam:MTS 35 141 1.4e-17 PFAM
Pfam:Methyltransf_31 49 142 5.2e-15 PFAM
Pfam:Methyltransf_18 51 141 1.4e-11 PFAM
Pfam:Methyltransf_15 52 140 4.5e-9 PFAM
Pfam:Methyltransf_26 52 140 1.3e-14 PFAM
Pfam:Methyltransf_25 55 142 4.7e-8 PFAM
Pfam:Methyltransf_11 56 134 3.8e-6 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000166411
AA Change: T145A

PolyPhen 2 Score 0.062 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000130313
Gene: ENSMUSG00000068882
AA Change: T145A

DomainStartEndE-ValueType
LA 11 92 2.19e-42 SMART
RRM 112 183 1.6e-4 SMART
Pfam:RRM_3 230 333 1.9e-35 PFAM
low complexity region 375 386 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000156057
Predicted Effect noncoding transcript
Transcript: ENSMUST00000149283
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.7%
  • 10x: 97.3%
  • 20x: 94.8%
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 is involved in diverse aspects of RNA metabolism, including binding and protecting poly(U) termini of nascent RNA polymerase III transcripts from exonuclease digestion, processing 5' and 3' ends of pre-tRNA precursors, acting as an RNA chaperone, and binding viral RNAs associated with hepatitis C virus. Autoantibodies reacting with this protein are found in the sera of patients with Sjogren syndrome and systemic lupus erythematosus. Alternative promoter usage results in two different transcript variants which encode the same protein. [provided by RefSeq, Jun 2014]
PHENOTYPE: Mice homozygous for disruptions in this gene die as embryos, possible before implantation. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 5 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Bmal2 A G 6: 146,731,218 (GRCm39) S508G possibly damaging Het
Gm5444 A G 13: 4,884,192 (GRCm39) noncoding transcript Het
Pkd1l2 A T 8: 117,777,839 (GRCm39) V904E probably damaging Het
Prl3b1 A G 13: 27,427,779 (GRCm39) T30A probably benign Het
Vmn2r110 T C 17: 20,794,165 (GRCm39) R835G probably damaging Het
Other mutations in Ssb
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00895:Ssb APN 2 69,696,606 (GRCm39) missense probably benign 0.06
IGL00940:Ssb APN 2 69,701,179 (GRCm39) critical splice donor site probably null
IGL00941:Ssb APN 2 69,701,179 (GRCm39) critical splice donor site probably null
IGL01834:Ssb APN 2 69,701,147 (GRCm39) missense possibly damaging 0.89
R0713:Ssb UTSW 2 69,697,703 (GRCm39) missense probably benign 0.06
R0751:Ssb UTSW 2 69,700,909 (GRCm39) missense probably benign
R1139:Ssb UTSW 2 69,696,920 (GRCm39) missense possibly damaging 0.66
R1928:Ssb UTSW 2 69,697,901 (GRCm39) splice site probably null
R2037:Ssb UTSW 2 69,699,163 (GRCm39) missense probably benign 0.16
R3968:Ssb UTSW 2 69,697,793 (GRCm39) splice site probably benign
R4674:Ssb UTSW 2 69,699,194 (GRCm39) missense probably benign 0.01
R5039:Ssb UTSW 2 69,696,581 (GRCm39) missense possibly damaging 0.79
R5551:Ssb UTSW 2 69,701,474 (GRCm39) missense probably damaging 0.99
R6102:Ssb UTSW 2 69,701,552 (GRCm39) makesense probably null
R7126:Ssb UTSW 2 69,696,845 (GRCm39) missense possibly damaging 0.70
R7448:Ssb UTSW 2 69,693,624 (GRCm39) missense probably benign
R7590:Ssb UTSW 2 69,697,634 (GRCm39) missense probably benign 0.08
R9499:Ssb UTSW 2 69,696,982 (GRCm39) missense probably benign
R9551:Ssb UTSW 2 69,696,982 (GRCm39) missense probably benign
R9652:Ssb UTSW 2 69,700,784 (GRCm39) missense probably damaging 1.00
R9753:Ssb UTSW 2 69,697,865 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- GGGGAGAGAAAGATACCTAGCTCTGACT -3'
(R):5'- AGGTGCTGTTGTTTACCTTACCCTATTG -3'

Sequencing Primer
(F):5'- AAGATACCTAGCTCTGACTTCGTTTC -3'
(R):5'- ATTTTGTGGTCTGAGAAACCTAAG -3'
Posted On 2013-07-30