Incidental Mutation 'G4846:Samd4'
| ID |
523 |
| Institutional Source |
Beutler Lab
|
| Gene Symbol |
Samd4
|
| Ensembl Gene |
ENSMUSG00000021838 |
| Gene Name |
sterile alpha motif domain containing 4 |
| Synonyms |
Smaug, 1700111L17Rik, 1700024G08Rik, 4933436G17Rik, sunk |
| Accession Numbers |
|
| Essential gene? |
Probably essential
(E-score: 0.823)
|
| Stock # |
G4846 (G3)
of strain
Worker
|
| Quality Score |
|
|
Status
|
Validated
|
| Chromosome |
14 |
| Chromosomal Location |
47120414-47343274 bp(+) (GRCm39) |
| Type of Mutation |
missense |
| DNA Base Change (assembly) |
T to A
at 47253776 bp (GRCm39)
|
| Zygosity |
Heterozygous |
| Amino Acid Change |
Isoleucine to Asparagine
at position 80
(I80N)
|
| Ref Sequence |
ENSEMBL: ENSMUSP00000114621
(fasta)
|
| Gene Model |
predicted gene model for transcript(s):
[ENSMUST00000022386]
[ENSMUST00000100672]
[ENSMUST00000125113]
[ENSMUST00000137543]
[ENSMUST00000228404]
|
| AlphaFold |
Q8CBY1 |
| Predicted Effect |
probably damaging
Transcript: ENSMUST00000022386
AA Change: I80N
PolyPhen 2
Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
|
| SMART Domains |
Protein: ENSMUSP00000022386
Gene: ENSMUSG00000021838
AA Change: I80N
| Domain | Start | End | E-Value | Type |
|---|
|
low complexity region
|
82 |
95 |
N/A |
INTRINSIC |
|
low complexity region
|
292 |
305 |
N/A |
INTRINSIC |
|
SAM
|
320 |
383 |
1.4e-7 |
SMART |
|
low complexity region
|
445 |
463 |
N/A |
INTRINSIC |
|
| Predicted Effect |
probably damaging
Transcript: ENSMUST00000100672
AA Change: I80N
PolyPhen 2
Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
|
| SMART Domains |
Protein: ENSMUSP00000098237
Gene: ENSMUSG00000021838
AA Change: I80N
| Domain | Start | End | E-Value | Type |
|---|
|
low complexity region
|
82 |
95 |
N/A |
INTRINSIC |
|
SAM
|
232 |
295 |
2.75e-6 |
SMART |
|
low complexity region
|
357 |
375 |
N/A |
INTRINSIC |
|
| Predicted Effect |
probably benign
Transcript: ENSMUST00000125113
|
| SMART Domains |
Protein: ENSMUSP00000122833
Gene: ENSMUSG00000021838
| Domain | Start | End | E-Value | Type |
|---|
|
low complexity region
|
191 |
204 |
N/A |
INTRINSIC |
|
SAM
|
219 |
282 |
1.4e-7 |
SMART |
|
low complexity region
|
344 |
362 |
N/A |
INTRINSIC |
|
| Predicted Effect |
probably damaging
Transcript: ENSMUST00000137543
AA Change: I80N
PolyPhen 2
Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
|
| SMART Domains |
Protein: ENSMUSP00000114621
Gene: ENSMUSG00000021838
AA Change: I80N
| Domain | Start | End | E-Value | Type |
|---|
|
low complexity region
|
82 |
95 |
N/A |
INTRINSIC |
|
SAM
|
232 |
295 |
2.75e-6 |
SMART |
|
low complexity region
|
357 |
375 |
N/A |
INTRINSIC |
|
| Predicted Effect |
probably benign
Transcript: ENSMUST00000228404
|
| Meta Mutation Damage Score |
0.5710 |
| Coding Region Coverage |
|
| Het Detection Efficiency |
29.1% |
| Validation Efficiency |
90% (104/115) |
| MGI Phenotype |
FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Sterile alpha motifs (SAMs) in proteins such as SAMD4A are part of an RNA-binding domain that functions as a posttranscriptional regulator by binding to an RNA sequence motif known as the Smaug recognition element, which was named after the Drosophila Smaug protein (Baez and Boccaccio, 2005 [PubMed 16221671]).[supplied by OMIM, Mar 2008]
PHENOTYPE: Mice homozygous for an ENU-induced allele exhibit leaness, myopathy and altered glucose metabolism. Mice homozygous for a spontaneous mutation exhibit kyphosis, abnormal gait, and decreased cortical bone thickness. [provided by MGI curators]
|
| Allele List at MGI |
ll alleles(1) : Gene trapped(1) |
| Other mutations in this stock |
Total: 11 list
| Gene | Ref | Var | Chr/Loc | Mutation | Predicted Effect | Zygosity |
|---|
| 2700049A03Rik |
A |
G |
12: 71,184,683 (GRCm39) |
I24V |
probably benign |
Het |
| Col4a2 |
T |
C |
8: 11,458,872 (GRCm39) |
|
probably benign |
Homo |
| Cyp3a13 |
C |
T |
5: 137,897,085 (GRCm39) |
E410K |
possibly damaging |
Het |
| Gm20518 |
A |
T |
16: 17,654,509 (GRCm39) |
|
probably benign |
Homo |
| Nbea |
T |
A |
3: 55,994,918 (GRCm39) |
D166V |
probably damaging |
Het |
| Or5au1 |
T |
A |
14: 52,273,434 (GRCm39) |
M45L |
probably benign |
Het |
| Or6c88 |
A |
T |
10: 129,407,039 (GRCm39) |
I172F |
probably damaging |
Het |
| Plxna4 |
T |
A |
6: 32,169,207 (GRCm39) |
D1330V |
probably damaging |
Het |
| Ppl |
A |
G |
16: 4,905,070 (GRCm39) |
S1742P |
probably damaging |
Homo |
| Spinkl |
T |
A |
18: 44,302,173 (GRCm39) |
|
probably benign |
Het |
| Ttll5 |
T |
A |
12: 86,071,018 (GRCm39) |
I1297N |
probably damaging |
Het |
|
| Other mutations in Samd4 |
| Allele | Source | Chr | Coord | Type | Predicted Effect | PPH Score |
|---|
|
IGL00557:Samd4
|
APN |
14 |
47,290,355 (GRCm39) |
missense |
probably damaging |
1.00 |
|
IGL01413:Samd4
|
APN |
14 |
47,254,249 (GRCm39) |
missense |
probably benign |
0.01 |
|
supermodel
|
UTSW |
14 |
47,253,794 (GRCm39) |
missense |
probably damaging |
1.00 |
|
B6584:Samd4
|
UTSW |
14 |
47,253,794 (GRCm39) |
missense |
probably damaging |
1.00 |
|
G1Funyon:Samd4
|
UTSW |
14 |
47,254,135 (GRCm39) |
missense |
probably benign |
|
|
R0096:Samd4
|
UTSW |
14 |
47,301,754 (GRCm39) |
missense |
possibly damaging |
0.88 |
|
R0122:Samd4
|
UTSW |
14 |
47,254,017 (GRCm39) |
missense |
probably benign |
0.44 |
|
R0562:Samd4
|
UTSW |
14 |
47,314,966 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R1247:Samd4
|
UTSW |
14 |
47,325,215 (GRCm39) |
small insertion |
probably benign |
|
|
R1247:Samd4
|
UTSW |
14 |
47,301,785 (GRCm39) |
critical splice donor site |
probably benign |
|
|
R1771:Samd4
|
UTSW |
14 |
47,326,532 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R1902:Samd4
|
UTSW |
14 |
47,311,585 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R1903:Samd4
|
UTSW |
14 |
47,311,585 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R2346:Samd4
|
UTSW |
14 |
47,122,299 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R4155:Samd4
|
UTSW |
14 |
47,290,403 (GRCm39) |
missense |
possibly damaging |
0.74 |
|
R4498:Samd4
|
UTSW |
14 |
47,333,566 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R4510:Samd4
|
UTSW |
14 |
47,315,042 (GRCm39) |
missense |
probably benign |
0.05 |
|
R4511:Samd4
|
UTSW |
14 |
47,315,042 (GRCm39) |
missense |
probably benign |
0.05 |
|
R4658:Samd4
|
UTSW |
14 |
47,301,703 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R4871:Samd4
|
UTSW |
14 |
47,303,920 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R4991:Samd4
|
UTSW |
14 |
47,311,467 (GRCm39) |
missense |
probably damaging |
0.97 |
|
R5432:Samd4
|
UTSW |
14 |
47,311,519 (GRCm39) |
missense |
probably benign |
0.09 |
|
R5687:Samd4
|
UTSW |
14 |
47,254,022 (GRCm39) |
missense |
probably benign |
|
|
R6035:Samd4
|
UTSW |
14 |
47,325,329 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R6035:Samd4
|
UTSW |
14 |
47,325,329 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R6254:Samd4
|
UTSW |
14 |
47,254,088 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R6366:Samd4
|
UTSW |
14 |
47,311,607 (GRCm39) |
critical splice donor site |
probably null |
|
|
R6376:Samd4
|
UTSW |
14 |
47,290,419 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R6944:Samd4
|
UTSW |
14 |
47,254,092 (GRCm39) |
missense |
possibly damaging |
0.94 |
|
R7035:Samd4
|
UTSW |
14 |
47,326,620 (GRCm39) |
synonymous |
silent |
|
|
R7148:Samd4
|
UTSW |
14 |
47,254,140 (GRCm39) |
missense |
probably benign |
0.09 |
|
R7467:Samd4
|
UTSW |
14 |
47,325,313 (GRCm39) |
missense |
probably benign |
0.19 |
|
R7999:Samd4
|
UTSW |
14 |
47,301,704 (GRCm39) |
missense |
probably damaging |
0.99 |
|
R8301:Samd4
|
UTSW |
14 |
47,254,135 (GRCm39) |
missense |
probably benign |
|
|
R8306:Samd4
|
UTSW |
14 |
47,122,374 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R8351:Samd4
|
UTSW |
14 |
47,338,888 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R8451:Samd4
|
UTSW |
14 |
47,338,888 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R9061:Samd4
|
UTSW |
14 |
47,301,728 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R9103:Samd4
|
UTSW |
14 |
47,254,066 (GRCm39) |
missense |
probably benign |
0.04 |
|
X0018:Samd4
|
UTSW |
14 |
47,254,153 (GRCm39) |
missense |
possibly damaging |
0.94 |
|
X0022:Samd4
|
UTSW |
14 |
47,311,474 (GRCm39) |
missense |
probably benign |
0.45 |
|
Z0001:Samd4
|
UTSW |
14 |
47,253,794 (GRCm39) |
missense |
probably damaging |
1.00 |
|
| Nature of Mutation |
 DNA sequencing using the SOLiD technique identified an A to T transversion at position 865 of the Samd4 transcript using Genbank record NM_001037221 in exon 4 of 14 total exons. Multiple transcripts of the Samd4 gene are displayed on Ensembl and Vega. The mutated nucleotide causes an isoleucine to asparagine substitution at amino acid 80 of the encoded protein. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).
|
| Protein Function and Prediction |
The Samd4 gene encodes a 711 amino acid protein that belongs to the SMAUG family. Sterile alpha motif-containing RNA-binding proteins constitute a novel family of post-transcriptional regulators that recognize a specific RNA sequence motif known as Smaug recognition element (SRE). The protein contains a SAM (sterile alpha motif) domain at residues 323-396. Four isoforms are produced by alternative splicing (Uniprot Q8CBY1).
The amino acid altered by the Worker mutation in the Samd4 gene is located only in isoforms 1 and 3, and is predicted to be probably damaging by the PolyPhen program. |
| Posted On |
2010-11-02 |
Incidental Mutation