Incidental Mutation 'R0486:Synj1'
| ID |
42307 |
| Institutional Source |
Beutler Lab
|
| Gene Symbol |
Synj1
|
| Ensembl Gene |
ENSMUSG00000022973 |
| Gene Name |
synaptojanin 1 |
| Synonyms |
A930006D20Rik |
| MMRRC Submission |
038685-MU
|
| Accession Numbers |
|
| Essential gene? |
Essential
(E-score: 1.000)
|
| Stock # |
R0486 (G1)
|
| Quality Score |
225 |
|
Status
|
Validated
|
| Chromosome |
16 |
| Chromosomal Location |
90732980-90808196 bp(-) (GRCm39) |
| Type of Mutation |
utr 3 prime |
| DNA Base Change (assembly) |
T to C
at 90735151 bp (GRCm39)
|
| Zygosity |
Heterozygous |
| Amino Acid Change |
|
| Ref Sequence |
ENSEMBL: ENSMUSP00000128997
(fasta)
|
| Gene Model |
predicted gene model for transcript(s):
[ENSMUST00000023694]
[ENSMUST00000121759]
[ENSMUST00000125519]
[ENSMUST00000129743]
[ENSMUST00000170853]
[ENSMUST00000149833]
[ENSMUST00000142340]
|
| AlphaFold |
no structure available at present |
| Predicted Effect |
probably benign
Transcript: ENSMUST00000023694
|
| SMART Domains |
Protein: ENSMUSP00000023694
Gene: ENSMUSG00000022972
| Domain | Start | End | E-Value | Type |
|---|
|
Pfam:DUF2870
|
189 |
285 |
4.7e-47 |
PFAM |
|
| Predicted Effect |
probably benign
Transcript: ENSMUST00000118390
|
| SMART Domains |
Protein: ENSMUSP00000113518
Gene: ENSMUSG00000022973
| Domain | Start | End | E-Value | Type |
|---|
|
low complexity region
|
1 |
15 |
N/A |
INTRINSIC |
|
Pfam:Syja_N
|
75 |
356 |
3.1e-71 |
PFAM |
|
IPPc
|
546 |
889 |
6.37e-177 |
SMART |
|
DUF1866
|
882 |
1024 |
1.24e-80 |
SMART |
|
low complexity region
|
1040 |
1069 |
N/A |
INTRINSIC |
|
low complexity region
|
1117 |
1151 |
N/A |
INTRINSIC |
|
low complexity region
|
1155 |
1166 |
N/A |
INTRINSIC |
|
low complexity region
|
1189 |
1208 |
N/A |
INTRINSIC |
|
low complexity region
|
1289 |
1322 |
N/A |
INTRINSIC |
|
| Predicted Effect |
unknown
Transcript: ENSMUST00000121759
AA Change: T1601A
|
| SMART Domains |
Protein: ENSMUSP00000113308
Gene: ENSMUSG00000022973
AA Change: T1601A
| Domain | Start | End | E-Value | Type |
|---|
|
low complexity region
|
9 |
40 |
N/A |
INTRINSIC |
|
Pfam:Syja_N
|
100 |
381 |
4.2e-71 |
PFAM |
|
IPPc
|
571 |
914 |
6.37e-177 |
SMART |
|
DUF1866
|
907 |
1049 |
1.24e-80 |
SMART |
|
low complexity region
|
1065 |
1094 |
N/A |
INTRINSIC |
|
low complexity region
|
1142 |
1176 |
N/A |
INTRINSIC |
|
low complexity region
|
1180 |
1191 |
N/A |
INTRINSIC |
|
low complexity region
|
1214 |
1233 |
N/A |
INTRINSIC |
|
low complexity region
|
1314 |
1343 |
N/A |
INTRINSIC |
|
Blast:IPPc
|
1344 |
1428 |
1e-17 |
BLAST |
|
low complexity region
|
1564 |
1596 |
N/A |
INTRINSIC |
|
| Predicted Effect |
probably benign
Transcript: ENSMUST00000125519
|
| Predicted Effect |
noncoding transcript
Transcript: ENSMUST00000129041
|
| Predicted Effect |
probably benign
Transcript: ENSMUST00000129743
|
| SMART Domains |
Protein: ENSMUSP00000123231
Gene: ENSMUSG00000022973
| Domain | Start | End | E-Value | Type |
|---|
|
low complexity region
|
69 |
101 |
N/A |
INTRINSIC |
|
| Predicted Effect |
noncoding transcript
Transcript: ENSMUST00000131583
|
| Predicted Effect |
noncoding transcript
Transcript: ENSMUST00000232326
|
| Predicted Effect |
probably benign
Transcript: ENSMUST00000170853
|
| SMART Domains |
Protein: ENSMUSP00000128997
Gene: ENSMUSG00000022973
| Domain | Start | End | E-Value | Type |
|---|
|
Pfam:Syja_N
|
59 |
346 |
1.7e-85 |
PFAM |
|
IPPc
|
531 |
874 |
6.37e-177 |
SMART |
|
DUF1866
|
867 |
1009 |
1.24e-80 |
SMART |
|
low complexity region
|
1025 |
1054 |
N/A |
INTRINSIC |
|
low complexity region
|
1102 |
1136 |
N/A |
INTRINSIC |
|
low complexity region
|
1140 |
1151 |
N/A |
INTRINSIC |
|
low complexity region
|
1174 |
1193 |
N/A |
INTRINSIC |
|
low complexity region
|
1274 |
1307 |
N/A |
INTRINSIC |
|
| Predicted Effect |
probably benign
Transcript: ENSMUST00000149833
|
| SMART Domains |
Protein: ENSMUSP00000123417
Gene: ENSMUSG00000022972
| Domain | Start | End | E-Value | Type |
|---|
|
Pfam:DUF2870
|
171 |
198 |
5.8e-14 |
PFAM |
|
| Predicted Effect |
probably benign
Transcript: ENSMUST00000142340
|
| Predicted Effect |
probably benign
Transcript: ENSMUST00000154276
|
| SMART Domains |
Protein: ENSMUSP00000122675
Gene: ENSMUSG00000022973
| Domain | Start | End | E-Value | Type |
|---|
|
low complexity region
|
2 |
32 |
N/A |
INTRINSIC |
|
low complexity region
|
54 |
73 |
N/A |
INTRINSIC |
|
low complexity region
|
154 |
187 |
N/A |
INTRINSIC |
|
| Meta Mutation Damage Score |
0.0720 |
| Coding Region Coverage |
- 1x: 99.1%
- 3x: 98.3%
- 10x: 96.1%
- 20x: 91.9%
|
| Validation Efficiency |
98% (65/66) |
| MGI Phenotype |
FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a phosphoinositide phosphatase that regulates levels of membrane phosphatidylinositol-4,5-bisphosphate. As such, expression of this enzyme may affect synaptic transmission and membrane trafficking. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]
PHENOTYPE: Homozygotes for a targeted null mutation exhibit neurological defects associated with impaired phosphoinositide metabolism and accumulation of clathrin-coated vesicles at nerve endings. Mutants show impaired suckling and most die within 24 hours of birth. [provided by MGI curators]
|
| Allele List at MGI |
|
| Other mutations in this stock |
Total: 62 list
| Gene | Ref | Var | Chr/Loc | Mutation | Predicted Effect | Zygosity |
|---|
| Aco1 |
T |
C |
4: 40,177,783 (GRCm39) |
L268P |
probably damaging |
Het |
| Adam22 |
A |
T |
5: 8,380,048 (GRCm39) |
H83Q |
probably damaging |
Het |
| Anln |
T |
C |
9: 22,264,122 (GRCm39) |
D886G |
probably benign |
Het |
| Arhgef11 |
T |
A |
3: 87,596,159 (GRCm39) |
|
probably null |
Het |
| Ark2c |
T |
A |
18: 77,571,950 (GRCm39) |
Q91L |
probably damaging |
Het |
| Arl8b |
A |
T |
6: 108,792,287 (GRCm39) |
D116V |
possibly damaging |
Het |
| BC051665 |
C |
T |
13: 60,931,859 (GRCm39) |
G180D |
probably damaging |
Het |
| Bloc1s2 |
A |
G |
19: 44,131,589 (GRCm39) |
|
probably benign |
Het |
| Ccdc185 |
T |
G |
1: 182,575,424 (GRCm39) |
S422R |
possibly damaging |
Het |
| Cd101 |
T |
C |
3: 100,915,408 (GRCm39) |
K720E |
possibly damaging |
Het |
| Cdh23 |
C |
A |
10: 60,222,725 (GRCm39) |
A1236S |
probably damaging |
Het |
| Chd1 |
G |
A |
17: 15,954,604 (GRCm39) |
A491T |
probably damaging |
Het |
| Chdh |
T |
C |
14: 29,754,815 (GRCm39) |
V275A |
possibly damaging |
Het |
| Cmtm2b |
A |
T |
8: 105,057,047 (GRCm39) |
I136F |
probably damaging |
Het |
| Cps1 |
T |
C |
1: 67,204,551 (GRCm39) |
V457A |
probably damaging |
Het |
| Cwf19l1 |
A |
G |
19: 44,103,129 (GRCm39) |
V362A |
probably benign |
Het |
| Cyp4f17 |
T |
C |
17: 32,743,797 (GRCm39) |
|
probably benign |
Het |
| Cyp4f18 |
C |
A |
8: 72,749,861 (GRCm39) |
V263L |
probably benign |
Het |
| Dclre1a |
A |
G |
19: 56,529,922 (GRCm39) |
|
probably benign |
Het |
| Dpp6 |
T |
C |
5: 27,866,640 (GRCm39) |
I446T |
probably benign |
Het |
| F11r |
T |
C |
1: 171,288,156 (GRCm39) |
W61R |
probably damaging |
Het |
| Fam120b |
C |
T |
17: 15,646,550 (GRCm39) |
|
probably benign |
Het |
| Fastkd2 |
T |
C |
1: 63,791,499 (GRCm39) |
V669A |
possibly damaging |
Het |
| Foxg1 |
T |
C |
12: 49,431,314 (GRCm39) |
|
probably benign |
Het |
| Foxo3 |
A |
G |
10: 42,073,477 (GRCm39) |
Y347H |
probably damaging |
Het |
| G3bp1 |
T |
C |
11: 55,389,452 (GRCm39) |
F383L |
probably damaging |
Het |
| Gbp7 |
C |
A |
3: 142,252,078 (GRCm39) |
|
probably benign |
Het |
| Glipr1 |
T |
C |
10: 111,832,754 (GRCm39) |
|
probably benign |
Het |
| Gm11555 |
A |
G |
11: 99,540,986 (GRCm39) |
S8P |
unknown |
Het |
| H6pd |
G |
A |
4: 150,067,393 (GRCm39) |
|
probably benign |
Het |
| Haus8 |
C |
T |
8: 71,709,182 (GRCm39) |
M75I |
probably benign |
Het |
| Haus8 |
C |
A |
8: 71,709,181 (GRCm39) |
G76W |
probably damaging |
Het |
| Kcnj13 |
C |
A |
1: 87,314,752 (GRCm39) |
V157L |
probably damaging |
Het |
| Kcnt2 |
T |
A |
1: 140,437,218 (GRCm39) |
C550* |
probably null |
Het |
| Kdm5d |
A |
G |
Y: 927,107 (GRCm39) |
N615S |
probably damaging |
Het |
| Naip2 |
A |
C |
13: 100,298,290 (GRCm39) |
I582S |
probably benign |
Het |
| Ncapd2 |
G |
A |
6: 125,160,990 (GRCm39) |
R292* |
probably null |
Het |
| Ngef |
T |
A |
1: 87,406,848 (GRCm39) |
N640I |
probably damaging |
Het |
| Nhlrc3 |
T |
C |
3: 53,359,858 (GRCm39) |
Y335C |
probably damaging |
Het |
| Nipbl |
A |
T |
15: 8,368,354 (GRCm39) |
|
probably benign |
Het |
| Nop2 |
A |
G |
6: 125,117,636 (GRCm39) |
K434R |
probably null |
Het |
| Nr4a3 |
T |
C |
4: 48,056,525 (GRCm39) |
|
probably benign |
Het |
| Or8b35 |
A |
G |
9: 37,903,998 (GRCm39) |
N70S |
possibly damaging |
Het |
| Piezo2 |
A |
C |
18: 63,162,132 (GRCm39) |
I2233R |
probably damaging |
Het |
| Prag1 |
A |
T |
8: 36,613,787 (GRCm39) |
E1113V |
probably damaging |
Het |
| Prpsap2 |
A |
G |
11: 61,631,826 (GRCm39) |
I177T |
possibly damaging |
Het |
| Psmd1 |
T |
A |
1: 86,022,012 (GRCm39) |
N611K |
probably damaging |
Het |
| Ptpn7 |
C |
T |
1: 135,065,096 (GRCm39) |
T168I |
probably damaging |
Het |
| Pus1 |
A |
T |
5: 110,927,596 (GRCm39) |
V53E |
probably damaging |
Het |
| Rgs22 |
A |
G |
15: 36,093,028 (GRCm39) |
M415T |
probably damaging |
Het |
| Rnf17 |
C |
T |
14: 56,751,632 (GRCm39) |
T1490M |
probably benign |
Het |
| Rnf20 |
C |
A |
4: 49,645,907 (GRCm39) |
L332I |
possibly damaging |
Het |
| Snrnp40 |
C |
G |
4: 130,271,836 (GRCm39) |
|
probably null |
Het |
| Spam1 |
A |
T |
6: 24,796,394 (GRCm39) |
Q115L |
probably damaging |
Het |
| Syce1l |
A |
T |
8: 114,381,395 (GRCm39) |
|
probably null |
Het |
| Tas2r126 |
A |
T |
6: 42,412,225 (GRCm39) |
I253F |
probably benign |
Het |
| Tecpr2 |
G |
A |
12: 110,862,803 (GRCm39) |
V72I |
probably benign |
Het |
| Tfap2a |
G |
T |
13: 40,882,170 (GRCm39) |
P45Q |
probably damaging |
Het |
| Trip12 |
C |
A |
1: 84,738,805 (GRCm39) |
G714* |
probably null |
Het |
| Wdr31 |
A |
G |
4: 62,372,130 (GRCm39) |
S330P |
probably damaging |
Het |
| Wdr64 |
T |
C |
1: 175,622,769 (GRCm39) |
|
probably benign |
Het |
| Yes1 |
T |
A |
5: 32,812,926 (GRCm39) |
Y343* |
probably null |
Het |
|
| Other mutations in Synj1 |
| Allele | Source | Chr | Coord | Type | Predicted Effect | PPH Score |
|---|
|
IGL01143:Synj1
|
APN |
16 |
90,748,864 (GRCm39) |
missense |
probably damaging |
1.00 |
|
IGL01468:Synj1
|
APN |
16 |
90,807,060 (GRCm39) |
splice site |
probably benign |
|
|
IGL02209:Synj1
|
APN |
16 |
90,784,307 (GRCm39) |
missense |
probably damaging |
0.97 |
|
IGL02452:Synj1
|
APN |
16 |
90,758,253 (GRCm39) |
splice site |
probably benign |
|
|
IGL02619:Synj1
|
APN |
16 |
90,770,933 (GRCm39) |
missense |
probably damaging |
1.00 |
|
IGL02650:Synj1
|
APN |
16 |
90,773,584 (GRCm39) |
missense |
probably benign |
0.03 |
|
IGL02708:Synj1
|
APN |
16 |
90,788,350 (GRCm39) |
missense |
probably damaging |
1.00 |
|
IGL02863:Synj1
|
APN |
16 |
90,758,322 (GRCm39) |
missense |
possibly damaging |
0.94 |
|
IGL03131:Synj1
|
APN |
16 |
90,785,056 (GRCm39) |
missense |
probably damaging |
0.99 |
|
IGL03295:Synj1
|
APN |
16 |
90,735,318 (GRCm39) |
missense |
probably benign |
0.14 |
|
IGL03356:Synj1
|
APN |
16 |
90,784,280 (GRCm39) |
missense |
probably damaging |
1.00 |
|
PIT1430001:Synj1
|
UTSW |
16 |
90,761,396 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R0179:Synj1
|
UTSW |
16 |
90,761,519 (GRCm39) |
missense |
possibly damaging |
0.80 |
|
R0396:Synj1
|
UTSW |
16 |
90,735,528 (GRCm39) |
missense |
probably benign |
|
|
R0426:Synj1
|
UTSW |
16 |
90,764,242 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R0515:Synj1
|
UTSW |
16 |
90,790,910 (GRCm39) |
missense |
possibly damaging |
0.93 |
|
R0535:Synj1
|
UTSW |
16 |
90,744,975 (GRCm39) |
missense |
possibly damaging |
0.80 |
|
R0697:Synj1
|
UTSW |
16 |
90,757,503 (GRCm39) |
missense |
probably benign |
0.44 |
|
R0698:Synj1
|
UTSW |
16 |
90,757,503 (GRCm39) |
missense |
probably benign |
0.44 |
|
R0945:Synj1
|
UTSW |
16 |
90,757,333 (GRCm39) |
missense |
possibly damaging |
0.90 |
|
R1327:Synj1
|
UTSW |
16 |
90,743,743 (GRCm39) |
missense |
probably benign |
0.05 |
|
R1562:Synj1
|
UTSW |
16 |
90,784,290 (GRCm39) |
missense |
probably benign |
0.09 |
|
R1732:Synj1
|
UTSW |
16 |
90,761,118 (GRCm39) |
missense |
probably damaging |
0.99 |
|
R1752:Synj1
|
UTSW |
16 |
90,735,361 (GRCm39) |
missense |
probably benign |
|
|
R1785:Synj1
|
UTSW |
16 |
90,761,405 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R1786:Synj1
|
UTSW |
16 |
90,761,405 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R2011:Synj1
|
UTSW |
16 |
90,735,584 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R2012:Synj1
|
UTSW |
16 |
90,735,584 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R2065:Synj1
|
UTSW |
16 |
90,788,537 (GRCm39) |
critical splice acceptor site |
probably null |
|
|
R2862:Synj1
|
UTSW |
16 |
90,766,217 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R3026:Synj1
|
UTSW |
16 |
90,775,622 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R3151:Synj1
|
UTSW |
16 |
90,757,514 (GRCm39) |
missense |
probably damaging |
0.96 |
|
R3946:Synj1
|
UTSW |
16 |
90,806,984 (GRCm39) |
missense |
possibly damaging |
0.48 |
|
R3971:Synj1
|
UTSW |
16 |
90,788,491 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R4472:Synj1
|
UTSW |
16 |
90,766,069 (GRCm39) |
critical splice donor site |
probably null |
|
|
R4547:Synj1
|
UTSW |
16 |
90,785,170 (GRCm39) |
missense |
possibly damaging |
0.51 |
|
R4647:Synj1
|
UTSW |
16 |
90,770,877 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R4739:Synj1
|
UTSW |
16 |
90,752,307 (GRCm39) |
missense |
probably benign |
0.00 |
|
R5027:Synj1
|
UTSW |
16 |
90,737,407 (GRCm39) |
splice site |
probably null |
|
|
R5428:Synj1
|
UTSW |
16 |
90,788,406 (GRCm39) |
missense |
probably damaging |
0.98 |
|
R5586:Synj1
|
UTSW |
16 |
90,806,865 (GRCm39) |
intron |
probably benign |
|
|
R5769:Synj1
|
UTSW |
16 |
90,735,141 (GRCm39) |
utr 3 prime |
probably benign |
|
|
R6005:Synj1
|
UTSW |
16 |
90,766,174 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R6119:Synj1
|
UTSW |
16 |
90,735,877 (GRCm39) |
missense |
probably benign |
0.30 |
|
R6313:Synj1
|
UTSW |
16 |
90,743,703 (GRCm39) |
missense |
probably benign |
0.00 |
|
R6324:Synj1
|
UTSW |
16 |
90,735,518 (GRCm39) |
missense |
probably benign |
0.00 |
|
R6549:Synj1
|
UTSW |
16 |
90,735,565 (GRCm39) |
missense |
probably benign |
|
|
R6696:Synj1
|
UTSW |
16 |
90,757,340 (GRCm39) |
missense |
probably damaging |
0.98 |
|
R6698:Synj1
|
UTSW |
16 |
90,757,340 (GRCm39) |
missense |
probably damaging |
0.98 |
|
R6861:Synj1
|
UTSW |
16 |
90,760,768 (GRCm39) |
nonsense |
probably null |
|
|
R7008:Synj1
|
UTSW |
16 |
90,790,833 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R7153:Synj1
|
UTSW |
16 |
90,744,978 (GRCm39) |
missense |
probably benign |
0.04 |
|
R7393:Synj1
|
UTSW |
16 |
90,748,887 (GRCm39) |
missense |
probably damaging |
0.99 |
|
R7510:Synj1
|
UTSW |
16 |
90,735,565 (GRCm39) |
missense |
probably benign |
|
|
R7560:Synj1
|
UTSW |
16 |
90,737,371 (GRCm39) |
missense |
probably benign |
|
|
R7724:Synj1
|
UTSW |
16 |
90,758,387 (GRCm39) |
missense |
probably damaging |
0.99 |
|
R7913:Synj1
|
UTSW |
16 |
90,788,315 (GRCm39) |
missense |
possibly damaging |
0.83 |
|
R8326:Synj1
|
UTSW |
16 |
90,785,084 (GRCm39) |
missense |
probably benign |
0.12 |
|
R8707:Synj1
|
UTSW |
16 |
90,752,319 (GRCm39) |
missense |
probably benign |
0.02 |
|
R8711:Synj1
|
UTSW |
16 |
90,806,971 (GRCm39) |
missense |
probably damaging |
0.98 |
|
R8767:Synj1
|
UTSW |
16 |
90,758,406 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R8911:Synj1
|
UTSW |
16 |
90,775,622 (GRCm39) |
missense |
probably damaging |
1.00 |
|
R9052:Synj1
|
UTSW |
16 |
90,735,728 (GRCm39) |
missense |
probably benign |
0.00 |
|
R9124:Synj1
|
UTSW |
16 |
90,735,513 (GRCm39) |
missense |
probably benign |
0.00 |
|
R9307:Synj1
|
UTSW |
16 |
90,785,095 (GRCm39) |
missense |
probably damaging |
0.98 |
|
R9408:Synj1
|
UTSW |
16 |
90,741,740 (GRCm39) |
missense |
probably benign |
0.27 |
|
R9458:Synj1
|
UTSW |
16 |
90,766,200 (GRCm39) |
missense |
probably benign |
0.05 |
|
R9567:Synj1
|
UTSW |
16 |
90,790,912 (GRCm39) |
missense |
possibly damaging |
0.79 |
|
R9651:Synj1
|
UTSW |
16 |
90,757,343 (GRCm39) |
missense |
possibly damaging |
0.56 |
|
R9651:Synj1
|
UTSW |
16 |
90,735,412 (GRCm39) |
missense |
probably benign |
0.00 |
|
R9707:Synj1
|
UTSW |
16 |
90,758,300 (GRCm39) |
missense |
possibly damaging |
0.91 |
|
R9730:Synj1
|
UTSW |
16 |
90,757,552 (GRCm39) |
missense |
probably damaging |
0.98 |
|
R9732:Synj1
|
UTSW |
16 |
90,761,414 (GRCm39) |
missense |
probably damaging |
1.00 |
|
Z1176:Synj1
|
UTSW |
16 |
90,784,228 (GRCm39) |
missense |
probably damaging |
1.00 |
|
| Predicted Primers |
PCR Primer
(F):5'- ATCCTCAACAGCACAATGGGCTGC -3'
(R):5'- CGCGCCAGCTTCATTTGATGATGAC -3'
Sequencing Primer
(F):5'- GATATACACAAATTCCAGCTTTCTCC -3'
(R):5'- TCATTTGATGATGACTGGAGTAAAGG -3'
|
| Posted On |
2013-05-23 |
Incidental Mutation