Mutagenetix > Incidental Mutation

Incidental Mutation 'C9142:Nf1'

162

Institutional Source

Beutler Lab

Gene Symbol

Nf1

Ensembl Gene

ENSMUSG00000020716

Gene Name

neurofibromin 1

Synonyms

Mhdadsk9, Dsk9, neurofibromin, Nf-1

Accession Numbers

Essential gene?

Essential (E-score: 1.000) question?

Stock #

C9142 (G3) of strain Muskatenwein

Quality Score

Status

Validated

Chromosome

Chromosomal Location

79230519-79472438 bp(+) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

C to T at 79447557 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Arginine to Cysteine at position 2433 (R2433C)

Ref Sequence

ENSEMBL: ENSMUSP00000103886 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000071325] [ENSMUST00000108251] [ENSMUST00000137997]

AlphaFold

no structure available at present

Predicted Effect

possibly damaging
Transcript: ENSMUST00000071325
AA Change: R2454C

PolyPhen 2 Score 0.914 (Sensitivity: 0.81; Specificity: 0.94)

SMART Domains

Protein: ENSMUSP00000071289
Gene: ENSMUSG00000020716
AA Change: R2454C

Domain	Start	End	E-Value	Type
RasGAP	1189	1559	2.56e-151	SMART
SEC14	1585	1737	2.36e-11	SMART
low complexity region	2619	2629	N/A	INTRINSIC
low complexity region	2750	2763	N/A	INTRINSIC

Predicted Effect

probably damaging
Transcript: ENSMUST00000108251
AA Change: R2433C

PolyPhen 2 Score 0.976 (Sensitivity: 0.76; Specificity: 0.96)

SMART Domains

Protein: ENSMUSP00000103886
Gene: ENSMUSG00000020716
AA Change: R2433C

Domain	Start	End	E-Value	Type
RasGAP	1189	1538	1.23e-153	SMART
SEC14	1564	1716	2.36e-11	SMART
low complexity region	2598	2608	N/A	INTRINSIC
low complexity region	2729	2742	N/A	INTRINSIC

Predicted Effect

possibly damaging
Transcript: ENSMUST00000137997
AA Change: R438C

PolyPhen 2 Score 0.942 (Sensitivity: 0.80; Specificity: 0.94)

SMART Domains

Protein: ENSMUSP00000120982
Gene: ENSMUSG00000020716
AA Change: R438C

Domain	Start	End	E-Value	Type
low complexity region	604	614	N/A	INTRINSIC
low complexity region	735	748	N/A	INTRINSIC

Predicted Effect

noncoding transcript
Transcript: ENSMUST00000146699

Meta Mutation Damage Score

0.2947

Coding Region Coverage

1x: 84.8%
3x: 59.3%

Validation Efficiency

82% (72/88)

MGI Phenotype

FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene product appears to function as a negative regulator of the ras signal transduction pathway. Mutations in this gene have been linked to neurofibromatosis type 1, juvenile myelomonocytic leukemia and Watson syndrome. The mRNA for this gene is subject to RNA editing (CGA>UGA->Arg1306Term) resulting in premature translation termination. Alternatively spliced transcript variants encoding different isoforms have also been described for this gene. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygous embryos die by day 14.5 with enlarged head and chest, pale liver, microphthalmia, cardiac defects and delayed organ development. Heterozygotes have elevated astrocyte number, predisposition to multiple tumor types and learning/memory deficits. [provided by MGI curators]

Allele List at MGI

All alleles(23) : Targeted, knock-out(4) Targeted, other(3) Gene trapped(16)

Other mutations in this stock

Total: 7 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
Adnp	A	G	2: 168,026,327 (GRCm39)	S323P	probably damaging	Het
Cc2d2a	A	G	5: 43,892,799 (GRCm39)		probably benign	Homo
Chrm5	A	G	2: 112,310,556 (GRCm39)	F187L	probably damaging	Het
Fmnl3	T	C	15: 99,235,508 (GRCm39)		probably null	Het
Klf7	C	T	1: 64,118,316 (GRCm39)	A94T	possibly damaging	Het
Pdlim3	A	T	8: 46,349,869 (GRCm39)	M60L	probably benign	Het
Vwde	T	C	6: 13,168,053 (GRCm39)		probably benign	Homo

Other mutations in Nf1

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL00225:Nf1	APN	11	79,286,731 (GRCm39)	missense	probably damaging	0.99
IGL00801:Nf1	APN	11	79,319,526 (GRCm39)	splice site	probably benign
IGL00823:Nf1	APN	11	79,456,343 (GRCm39)	missense	probably damaging	1.00
IGL00945:Nf1	APN	11	79,360,629 (GRCm39)	missense	probably damaging	0.99
IGL00960:Nf1	APN	11	79,335,947 (GRCm39)	missense	probably damaging	1.00
IGL01118:Nf1	APN	11	79,437,812 (GRCm39)	missense	probably damaging	0.99
IGL01604:Nf1	APN	11	79,332,535 (GRCm39)	splice site	probably benign
IGL01637:Nf1	APN	11	79,437,946 (GRCm39)	missense	probably damaging	1.00
IGL01659:Nf1	APN	11	79,450,275 (GRCm39)	missense	probably benign
IGL01764:Nf1	APN	11	79,275,013 (GRCm39)	missense	probably benign
IGL01772:Nf1	APN	11	79,281,075 (GRCm39)	missense	probably damaging	1.00
IGL02047:Nf1	APN	11	79,316,361 (GRCm39)	missense	probably benign	0.04
IGL02052:Nf1	APN	11	79,303,553 (GRCm39)	missense	probably damaging	1.00
IGL02071:Nf1	APN	11	79,334,947 (GRCm39)	missense	possibly damaging	0.96
IGL02312:Nf1	APN	11	79,335,474 (GRCm39)	missense	possibly damaging	0.95
IGL02341:Nf1	APN	11	79,455,752 (GRCm39)	missense	probably benign	0.33
IGL02390:Nf1	APN	11	79,456,761 (GRCm39)	missense	possibly damaging	0.64
IGL02390:Nf1	APN	11	79,302,502 (GRCm39)	splice site	probably benign
IGL02475:Nf1	APN	11	79,426,493 (GRCm39)	missense	probably damaging	1.00
IGL02567:Nf1	APN	11	79,437,969 (GRCm39)	missense	probably damaging	1.00
IGL02571:Nf1	APN	11	79,319,453 (GRCm39)	missense	probably damaging	1.00
IGL02664:Nf1	APN	11	79,335,424 (GRCm39)	critical splice acceptor site	probably null
IGL02664:Nf1	APN	11	79,335,425 (GRCm39)	critical splice acceptor site	probably null
IGL02992:Nf1	APN	11	79,325,759 (GRCm39)	splice site	probably benign
IGL03006:Nf1	APN	11	79,436,257 (GRCm39)	missense	probably damaging	1.00
IGL03216:Nf1	APN	11	79,455,721 (GRCm39)	missense	probably benign	0.17
Diesel	UTSW	11	79,447,549 (GRCm39)	missense	probably damaging	0.96
Eyecandy	UTSW	11	79,436,291 (GRCm39)	missense	probably damaging	1.00
Franklin	UTSW	11	79,364,146 (GRCm39)	splice site	probably null
Gasoline	UTSW	11	79,447,615 (GRCm39)	missense	probably benign	0.17
hancock	UTSW	11	79,427,676 (GRCm39)	missense	probably benign
independence	UTSW	11	79,345,136 (GRCm39)	intron	probably benign
jackson	UTSW	11	79,338,398 (GRCm39)	missense	probably damaging	1.00
Jefferson	UTSW	11	79,337,690 (GRCm39)	missense	probably damaging	1.00
Phyletic_dwarf	UTSW	11	79,345,015 (GRCm39)	missense	probably damaging	1.00
responsibility	UTSW	11	79,456,801 (GRCm39)	missense	probably damaging	0.99
weepy	UTSW	11	79,437,812 (GRCm39)	missense	probably damaging	1.00
I2289:Nf1	UTSW	11	79,438,602 (GRCm39)	missense	probably damaging	1.00
R0055:Nf1	UTSW	11	79,362,377 (GRCm39)	missense	probably damaging	1.00
R0055:Nf1	UTSW	11	79,362,377 (GRCm39)	missense	probably damaging	1.00
R0081:Nf1	UTSW	11	79,344,805 (GRCm39)	splice site	probably benign
R0115:Nf1	UTSW	11	79,359,702 (GRCm39)	critical splice donor site	probably null
R0144:Nf1	UTSW	11	79,437,953 (GRCm39)	missense	probably damaging	1.00
R0196:Nf1	UTSW	11	79,469,098 (GRCm39)	missense	probably damaging	1.00
R0196:Nf1	UTSW	11	79,359,595 (GRCm39)	missense	possibly damaging	0.94
R0217:Nf1	UTSW	11	79,319,400 (GRCm39)	splice site	probably benign
R0238:Nf1	UTSW	11	79,309,400 (GRCm39)	missense	possibly damaging	0.89
R0238:Nf1	UTSW	11	79,309,400 (GRCm39)	missense	possibly damaging	0.89
R0239:Nf1	UTSW	11	79,309,400 (GRCm39)	missense	possibly damaging	0.89
R0239:Nf1	UTSW	11	79,309,400 (GRCm39)	missense	possibly damaging	0.89
R0255:Nf1	UTSW	11	79,299,525 (GRCm39)	splice site	probably null
R0362:Nf1	UTSW	11	79,427,704 (GRCm39)	missense	probably damaging	1.00
R0364:Nf1	UTSW	11	79,332,783 (GRCm39)	nonsense	probably null
R0464:Nf1	UTSW	11	79,447,615 (GRCm39)	missense	probably benign	0.17
R0511:Nf1	UTSW	11	79,329,595 (GRCm39)	missense	probably benign	0.01
R0549:Nf1	UTSW	11	79,359,597 (GRCm39)	missense	probably damaging	0.99
R0585:Nf1	UTSW	11	79,459,527 (GRCm39)	missense	probably damaging	0.99
R0636:Nf1	UTSW	11	79,426,529 (GRCm39)	missense	probably damaging	0.99
R0924:Nf1	UTSW	11	79,344,692 (GRCm39)	missense	probably damaging	0.98
R0942:Nf1	UTSW	11	79,329,537 (GRCm39)	missense	probably benign	0.00
R1022:Nf1	UTSW	11	79,437,859 (GRCm39)	missense	probably damaging	1.00
R1024:Nf1	UTSW	11	79,437,859 (GRCm39)	missense	probably damaging	1.00
R1350:Nf1	UTSW	11	79,303,513 (GRCm39)	missense	probably damaging	1.00
R1365:Nf1	UTSW	11	79,438,711 (GRCm39)	splice site	probably null
R1395:Nf1	UTSW	11	79,426,809 (GRCm39)	missense	possibly damaging	0.49
R1467:Nf1	UTSW	11	79,319,452 (GRCm39)	missense	possibly damaging	0.88
R1467:Nf1	UTSW	11	79,319,452 (GRCm39)	missense	possibly damaging	0.88
R1477:Nf1	UTSW	11	79,286,685 (GRCm39)	nonsense	probably null
R1508:Nf1	UTSW	11	79,331,735 (GRCm39)	missense	probably damaging	1.00
R1512:Nf1	UTSW	11	79,281,195 (GRCm39)	missense	probably damaging	1.00
R1605:Nf1	UTSW	11	79,331,749 (GRCm39)	missense	probably benign	0.01
R1680:Nf1	UTSW	11	79,441,824 (GRCm39)	nonsense	probably null
R1704:Nf1	UTSW	11	79,354,127 (GRCm39)	splice site	probably null
R1707:Nf1	UTSW	11	79,426,430 (GRCm39)	missense	probably damaging	1.00
R1741:Nf1	UTSW	11	79,334,757 (GRCm39)	missense	probably benign
R1761:Nf1	UTSW	11	79,275,091 (GRCm39)	missense	probably damaging	1.00
R1800:Nf1	UTSW	11	79,444,794 (GRCm39)	missense	possibly damaging	0.94
R1873:Nf1	UTSW	11	79,437,987 (GRCm39)	missense	probably damaging	1.00
R1966:Nf1	UTSW	11	79,302,390 (GRCm39)	missense	possibly damaging	0.72
R1967:Nf1	UTSW	11	79,303,571 (GRCm39)	missense	probably damaging	0.96
R1970:Nf1	UTSW	11	79,444,787 (GRCm39)	missense	probably benign	0.08
R2059:Nf1	UTSW	11	79,447,549 (GRCm39)	missense	probably damaging	0.96
R2105:Nf1	UTSW	11	79,360,652 (GRCm39)	missense	possibly damaging	0.50
R2151:Nf1	UTSW	11	79,338,396 (GRCm39)	missense	possibly damaging	0.94
R2211:Nf1	UTSW	11	79,334,890 (GRCm39)	missense	probably benign	0.39
R2497:Nf1	UTSW	11	79,334,710 (GRCm39)	missense	probably damaging	1.00
R2899:Nf1	UTSW	11	79,303,584 (GRCm39)	missense	possibly damaging	0.93
R3086:Nf1	UTSW	11	79,437,812 (GRCm39)	missense	probably damaging	1.00
R3120:Nf1	UTSW	11	79,455,725 (GRCm39)	missense	probably damaging	0.99
R3744:Nf1	UTSW	11	79,439,573 (GRCm39)	missense	probably benign	0.23
R3801:Nf1	UTSW	11	79,450,347 (GRCm39)	missense	probably null	0.98
R3804:Nf1	UTSW	11	79,450,347 (GRCm39)	missense	probably null	0.98
R4212:Nf1	UTSW	11	79,360,624 (GRCm39)	missense	probably damaging	1.00
R4298:Nf1	UTSW	11	79,275,070 (GRCm39)	missense	probably damaging	1.00
R4578:Nf1	UTSW	11	79,336,585 (GRCm39)	missense	probably damaging	1.00
R4579:Nf1	UTSW	11	79,359,583 (GRCm39)	missense	probably damaging	1.00
R4587:Nf1	UTSW	11	79,426,863 (GRCm39)	critical splice donor site	probably null
R4793:Nf1	UTSW	11	79,338,398 (GRCm39)	missense	probably damaging	1.00
R4834:Nf1	UTSW	11	79,437,123 (GRCm39)	missense	probably damaging	1.00
R4863:Nf1	UTSW	11	79,300,235 (GRCm39)	missense	probably damaging	1.00
R4967:Nf1	UTSW	11	79,456,379 (GRCm39)	critical splice donor site	probably null
R4971:Nf1	UTSW	11	79,335,469 (GRCm39)	missense	probably damaging	1.00
R5034:Nf1	UTSW	11	79,334,976 (GRCm39)	missense	probably damaging	0.98
R5036:Nf1	UTSW	11	79,337,690 (GRCm39)	missense	probably damaging	1.00
R5207:Nf1	UTSW	11	79,345,015 (GRCm39)	missense	probably damaging	1.00
R5348:Nf1	UTSW	11	79,455,725 (GRCm39)	missense	probably damaging	1.00
R5356:Nf1	UTSW	11	79,364,282 (GRCm39)	missense	possibly damaging	0.94
R5444:Nf1	UTSW	11	79,334,785 (GRCm39)	missense	possibly damaging	0.94
R5533:Nf1	UTSW	11	79,336,615 (GRCm39)	missense	probably damaging	0.99
R5918:Nf1	UTSW	11	79,460,048 (GRCm39)	intron	probably benign
R5978:Nf1	UTSW	11	79,431,245 (GRCm39)	missense	probably damaging	1.00
R6140:Nf1	UTSW	11	79,364,146 (GRCm39)	splice site	probably null
R6195:Nf1	UTSW	11	79,456,801 (GRCm39)	missense	probably damaging	0.99
R6216:Nf1	UTSW	11	79,302,433 (GRCm39)	missense	possibly damaging	0.93
R6233:Nf1	UTSW	11	79,456,801 (GRCm39)	missense	probably damaging	0.99
R6257:Nf1	UTSW	11	79,440,317 (GRCm39)	missense	probably damaging	1.00
R6258:Nf1	UTSW	11	79,456,581 (GRCm39)	splice site	probably null
R6756:Nf1	UTSW	11	79,335,413 (GRCm39)	splice site	probably null
R6878:Nf1	UTSW	11	79,325,708 (GRCm39)	missense	probably damaging	1.00
R6959:Nf1	UTSW	11	79,440,294 (GRCm39)	missense	probably damaging	0.98
R7007:Nf1	UTSW	11	79,337,849 (GRCm39)	splice site	probably null
R7066:Nf1	UTSW	11	79,447,546 (GRCm39)	missense	probably damaging	1.00
R7099:Nf1	UTSW	11	79,461,156 (GRCm39)	missense	probably benign	0.08
R7213:Nf1	UTSW	11	79,360,645 (GRCm39)	missense	probably benign	0.23
R7326:Nf1	UTSW	11	79,455,769 (GRCm39)	missense	probably benign
R7348:Nf1	UTSW	11	79,427,676 (GRCm39)	missense	probably benign
R7380:Nf1	UTSW	11	79,437,102 (GRCm39)	missense	probably damaging	1.00
R7407:Nf1	UTSW	11	79,338,969 (GRCm39)	missense	probably damaging	1.00
R7412:Nf1	UTSW	11	79,364,240 (GRCm39)	missense	probably damaging	1.00
R7545:Nf1	UTSW	11	79,300,350 (GRCm39)	missense	probably benign
R7567:Nf1	UTSW	11	79,438,052 (GRCm39)	missense	probably damaging	0.99
R7574:Nf1	UTSW	11	79,299,595 (GRCm39)	missense	probably null	0.99
R7616:Nf1	UTSW	11	79,275,092 (GRCm39)	missense	probably damaging	0.97
R7713:Nf1	UTSW	11	79,316,432 (GRCm39)	missense	probably benign
R7737:Nf1	UTSW	11	79,436,314 (GRCm39)	missense	probably benign	0.33
R7869:Nf1	UTSW	11	79,309,414 (GRCm39)	missense	probably damaging	1.00
R7905:Nf1	UTSW	11	79,437,938 (GRCm39)	missense	possibly damaging	0.80
R8232:Nf1	UTSW	11	79,469,157 (GRCm39)	missense	probably damaging	0.96
R8244:Nf1	UTSW	11	79,331,750 (GRCm39)	missense	probably benign
R8397:Nf1	UTSW	11	79,438,518 (GRCm39)	missense	probably damaging	1.00
R8436:Nf1	UTSW	11	79,349,709 (GRCm39)	missense	probably damaging	0.99
R8492:Nf1	UTSW	11	79,299,248 (GRCm39)	missense	probably benign	0.06
R8719:Nf1	UTSW	11	79,281,119 (GRCm39)	missense	possibly damaging	0.86
R8735:Nf1	UTSW	11	79,345,136 (GRCm39)	intron	probably benign
R8795:Nf1	UTSW	11	79,316,442 (GRCm39)	missense	probably damaging	1.00
R8797:Nf1	UTSW	11	79,366,711 (GRCm39)	critical splice donor site	probably benign
R8809:Nf1	UTSW	11	79,437,964 (GRCm39)	missense	probably damaging	0.99
R8812:Nf1	UTSW	11	79,437,180 (GRCm39)	missense	probably damaging	0.96
R8815:Nf1	UTSW	11	79,332,491 (GRCm39)	missense	probably damaging	1.00
R8828:Nf1	UTSW	11	79,286,679 (GRCm39)	critical splice acceptor site	probably null
R8894:Nf1	UTSW	11	79,336,619 (GRCm39)	missense	probably damaging	1.00
R9051:Nf1	UTSW	11	79,364,168 (GRCm39)	missense	probably damaging	1.00
R9103:Nf1	UTSW	11	79,450,332 (GRCm39)	missense	probably damaging	0.99
R9142:Nf1	UTSW	11	79,366,688 (GRCm39)	missense	probably damaging	1.00
R9142:Nf1	UTSW	11	79,362,315 (GRCm39)	missense	probably damaging	1.00
R9170:Nf1	UTSW	11	79,436,291 (GRCm39)	missense	probably damaging	1.00
R9201:Nf1	UTSW	11	79,461,156 (GRCm39)	missense	probably benign	0.08
R9267:Nf1	UTSW	11	79,331,716 (GRCm39)	missense	possibly damaging	0.72
R9309:Nf1	UTSW	11	79,359,595 (GRCm39)	missense	possibly damaging	0.94
R9340:Nf1	UTSW	11	79,447,629 (GRCm39)	missense	possibly damaging	0.90
R9398:Nf1	UTSW	11	79,438,018 (GRCm39)	missense	probably damaging	0.99
R9471:Nf1	UTSW	11	79,436,195 (GRCm39)	missense	probably damaging	0.99
R9630:Nf1	UTSW	11	79,302,470 (GRCm39)	missense	probably damaging	1.00
R9664:Nf1	UTSW	11	79,334,733 (GRCm39)	missense	probably damaging	1.00
X0052:Nf1	UTSW	11	79,450,242 (GRCm39)	missense	probably damaging	0.99
Z1177:Nf1	UTSW	11	79,455,751 (GRCm39)	missense	probably benign	0.00

Nature of Mutation

DNA sequencing using the SOLiD technique identified a C to T transition at position 7468 of the Nf1 transcript in exon 50 of 58 total exons. Multiple transcripts of Nf1 gene are displayed on Ensembl and Vega. The mutated nucleotide causes an arginine to cysteine substitution at amino acid 2454 of the encoded protein (isoform 2). The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).

Protein Function and Prediction

The Nf1 gene encodes a 2841 amino acid protein that is Ras GTPase-activating protein (GAP). Multiple isoforms are produced by alternative splicing. Isoform 1 is expressed predominantly in brain, spinal cord and testis. Isoform 2 is expressed predominantly in adrenal gland, kidney, ovary and lung. Isoform 3 is expressed predominantly in adrenal gland and isoform 4 is expressed mainly in the testis. Isoform 2 (the canonical isoform) contains a Ras-GAP domain at amino acids 1237-1453, and a CRAL-TRIO domain at residues 1583-1740. CRAL-TRIO domains typically bind small lipophilic molecules (Uniprot Q04690). Homozygous embryos die by day 14.5 with enlarged head and chest, pale liver, microphthalmia, cardiac defects and delayed organ development. Heterozygotes have elevated astrocyte number, predisposition to multiple tumor types and learning/memory deficits. Mutations in the human NF1 gene causes neurofibromatosis type I (NF1; 613113), which is an autosomal dominant disorder characterized by cafe-au-lait spots, Lisch nodules in the eye, and fibromatous tumors of the skin. Individuals with the disorder have increased susceptibility to the development of benign and malignant tumors.

The R2454C change is predicted to be probably damaging by the PolyPhen program.

Posted On

2010-04-08