Mutagenetix > Incidental Mutation

Incidental Mutation 'R1955:Ddx20'

217649

Institutional Source

Beutler Lab

Gene Symbol

Ddx20

Ensembl Gene

ENSMUSG00000027905

Gene Name

DEAD box helicase 20

Synonyms

DEAD (Asp-Glu-Ala-Asp) box polypeptide 20, GEMIN3, dp103

MMRRC Submission

039969-MU

Accession Numbers

Essential gene?

Essential (E-score: 1.000) question?

Stock #

R1955 (G1)

Quality Score

225

Status

Not validated

Chromosome

Chromosomal Location

105585586-105594890 bp(-) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

G to A at 105586878 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Threonine to Methionine at position 489 (T489M)

Ref Sequence

ENSEMBL: ENSMUSP00000088176 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000090680] [ENSMUST00000200078]

AlphaFold

Q9JJY4

Predicted Effect

possibly damaging
Transcript: ENSMUST00000090680
AA Change: T489M

PolyPhen 2 Score 0.787 (Sensitivity: 0.85; Specificity: 0.93)

SMART Domains

Protein: ENSMUSP00000088176
Gene: ENSMUSG00000027905
AA Change: T489M

Domain	Start	End	E-Value	Type
low complexity region	20	33	N/A	INTRINSIC
DEXDc	82	280	7.47e-44	SMART
HELICc	324	405	2.8e-25	SMART
low complexity region	434	445	N/A	INTRINSIC
low complexity region	646	668	N/A	INTRINSIC

Predicted Effect

noncoding transcript
Transcript: ENSMUST00000132008

Predicted Effect

probably benign
Transcript: ENSMUST00000200078

SMART Domains

Protein: ENSMUSP00000142675
Gene: ENSMUSG00000027905

Domain	Start	End	E-Value	Type
low complexity region	20	33	N/A	INTRINSIC
Pfam:DEAD	87	134	7.6e-5	PFAM

Coding Region Coverage

1x: 99.2%
3x: 98.5%
10x: 96.7%
20x: 93.9%

Validation Efficiency

MGI Phenotype

FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein, which has an ATPase activity and is a component of the survival of motor neurons (SMN) complex. This protein interacts directly with SMN, the spinal muscular atrophy gene product, and may play a catalytic role in the function of the SMN complex on RNPs. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a null allele fail to implant and develop past the 2-cell stage. Heterozygous null females are viable, healthy and fertile but show increased ovary weight, a greater number of empty follicles, a prolonged estrous phase, and reduced nocturnal and stress-induced serum ACTH levels. [provided by MGI curators]

Allele List at MGI

Other mutations in this stock

Total: 101 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
1700019A02Rik	T	A	1: 53,202,400 (GRCm39)	K128N	probably benign	Het
Acadm	A	C	3: 153,635,188 (GRCm39)	F309V	probably damaging	Het
Adam6b	C	A	12: 113,455,436 (GRCm39)	A751E	probably benign	Het
Adcy9	A	G	16: 4,236,523 (GRCm39)	I296T	possibly damaging	Het
Arhgap45	A	G	10: 79,862,326 (GRCm39)	E471G	probably benign	Het
Atcay	T	C	10: 81,050,627 (GRCm39)	D96G	possibly damaging	Het
B3galt4	T	A	17: 34,169,606 (GRCm39)	R211*	probably null	Het
Bpi	T	C	2: 158,116,635 (GRCm39)	I344T	probably damaging	Het
Btnl4	T	C	17: 34,691,904 (GRCm39)	K233E	possibly damaging	Het
Cars2	A	T	8: 11,600,286 (GRCm39)	Y68N	probably damaging	Het
Cd207	T	A	6: 83,648,757 (GRCm39)	R302W	probably benign	Het
Cdc5l	T	C	17: 45,737,442 (GRCm39)		probably null	Het
Chaf1a	C	T	17: 56,354,540 (GRCm39)	T270I	unknown	Het
Col4a1	C	T	8: 11,258,228 (GRCm39)		probably null	Het
Col7a1	G	T	9: 108,784,732 (GRCm39)	V187L	unknown	Het
Cry1	G	A	10: 84,980,042 (GRCm39)	T422I	probably benign	Het
Csgalnact1	C	T	8: 68,825,319 (GRCm39)	V392I	probably benign	Het
Cyp2c38	A	G	19: 39,393,131 (GRCm39)	L312P	probably damaging	Het
Decr1	A	T	4: 15,924,256 (GRCm39)	N221K	probably benign	Het
Dennd4a	A	T	9: 64,759,749 (GRCm39)	T285S	probably benign	Het
Dgka	A	G	10: 128,566,058 (GRCm39)		probably null	Het
Dmd	A	T	X: 82,922,163 (GRCm39)	M1478L	probably benign	Het
Dvl1	G	A	4: 155,942,486 (GRCm39)	R584Q	possibly damaging	Het
Dync1li1	A	T	9: 114,550,814 (GRCm39)	S450C	probably damaging	Het
Ehbp1l1	A	G	19: 5,760,697 (GRCm39)	V1558A	possibly damaging	Het
Esr1	T	A	10: 4,807,125 (GRCm39)	M347K	probably damaging	Het
F2	T	A	2: 91,463,440 (GRCm39)	H148L	probably benign	Het
Fezf2	T	C	14: 12,342,644 (GRCm38)	N407S	probably benign	Het
Fscn3	T	A	6: 28,430,235 (GRCm39)	M135K	possibly damaging	Het
Ganab	T	G	19: 8,888,980 (GRCm39)	Y560*	probably null	Het
Garem2	T	C	5: 30,313,268 (GRCm39)	V44A	probably benign	Het
Gja4	A	G	4: 127,206,242 (GRCm39)	W174R	probably damaging	Het
Gja5	A	T	3: 96,958,957 (GRCm39)	H338L	probably benign	Het
Gm43517	A	G	12: 49,436,672 (GRCm39)		probably benign	Het
Iqch	A	T	9: 63,455,298 (GRCm39)	D166E	probably benign	Het
Kifc5b	T	A	17: 27,145,271 (GRCm39)		probably null	Het
Kmt2b	A	T	7: 30,274,776 (GRCm39)	M1976K	possibly damaging	Het
Leng1	A	T	7: 3,668,415 (GRCm39)	V11D	probably damaging	Het
Lrit3	A	G	3: 129,594,130 (GRCm39)	V149A	probably benign	Het
Lrpap1	A	G	5: 35,259,756 (GRCm39)	L114P	probably damaging	Het
Marveld3	T	A	8: 110,686,380 (GRCm39)	D162V	probably benign	Het
Mon2	A	T	10: 122,874,388 (GRCm39)	I320N	probably damaging	Het
Morc2b	T	C	17: 33,356,464 (GRCm39)	Y436C	probably damaging	Het
Myo7a	A	T	7: 97,704,128 (GRCm39)	V1928D	probably damaging	Het
Ncoa6	A	G	2: 155,248,741 (GRCm39)	V1521A	possibly damaging	Het
Nexmif	A	G	X: 103,127,559 (GRCm39)	S1453P	possibly damaging	Het
Nudt16l1	A	G	16: 4,758,189 (GRCm39)	M182V	probably benign	Het
Obp2b	A	T	2: 25,628,563 (GRCm39)	I106L	probably benign	Het
Or10ag59	T	A	2: 87,406,349 (GRCm39)	L307Q	probably damaging	Het
Or4a2	T	A	2: 89,248,755 (GRCm39)	M1L	probably damaging	Het
Or5h18	T	A	16: 58,847,774 (GRCm39)	R165S	probably damaging	Het
Or8b43	T	C	9: 38,360,984 (GRCm39)	I272T	probably benign	Het
Parl	T	A	16: 20,121,077 (GRCm39)	M1L	possibly damaging	Het
Pde7a	G	A	3: 19,281,963 (GRCm39)	A429V	probably damaging	Het
Pkd1l2	T	A	8: 117,770,100 (GRCm39)	M1119L	probably benign	Het
Plch1	C	T	3: 63,662,688 (GRCm39)	V272I	probably damaging	Het
Plekha4	G	A	7: 45,203,330 (GRCm39)	G740D	probably damaging	Het
Pnliprp1	A	G	19: 58,723,404 (GRCm39)	D265G	possibly damaging	Het
Pola1	A	C	X: 92,640,867 (GRCm39)	V384G	probably damaging	Het
Pon3	T	A	6: 5,230,774 (GRCm39)	D251V	probably benign	Het
Pot1b	A	G	17: 55,981,067 (GRCm39)	C316R	possibly damaging	Het
Prkaca	T	A	8: 84,714,946 (GRCm39)	V116E	probably damaging	Het
Prpf6	T	G	2: 181,273,870 (GRCm39)	M338R	probably benign	Het
Rasgef1c	A	G	11: 49,866,542 (GRCm39)	H382R	possibly damaging	Het
Rlig1	A	G	10: 100,413,166 (GRCm39)	V91A	probably damaging	Het
Rps25	C	T	9: 44,321,305 (GRCm39)	T113I	probably benign	Het
Serpinb1b	G	T	13: 33,269,422 (GRCm39)	A52S	probably benign	Het
Sh3yl1	A	G	12: 30,972,332 (GRCm39)	K34E	possibly damaging	Het
Siah2	C	T	3: 58,583,518 (GRCm39)	R256Q	probably damaging	Het
Slc24a2	A	G	4: 86,991,481 (GRCm39)	L404P	probably damaging	Het
Slc28a2	G	A	2: 122,278,347 (GRCm39)	C122Y	probably benign	Het
Slc4a8	T	C	15: 100,705,257 (GRCm39)	I821T	probably damaging	Het
Slc5a3	T	C	16: 91,874,762 (GRCm39)	V273A	possibly damaging	Het
Spag7	T	C	11: 70,555,844 (GRCm39)	Q61R	probably benign	Het
Syt7	A	T	19: 10,395,402 (GRCm39)	I71F	probably damaging	Het
Tars2	T	C	3: 95,654,766 (GRCm39)	N413S	probably damaging	Het
Tex14	T	A	11: 87,400,447 (GRCm39)	L413Q	probably damaging	Het
Tjp3	T	C	10: 81,113,833 (GRCm39)	E475G	probably damaging	Het
Tmem131l	A	G	3: 83,868,851 (GRCm39)	S175P	probably damaging	Het
Tmem144	C	T	3: 79,734,164 (GRCm39)	V180M	probably benign	Het
Tmem200c	A	T	17: 69,147,956 (GRCm39)	I180F	probably damaging	Het
Tmem232	G	T	17: 65,791,482 (GRCm39)	H129N	probably benign	Het
Tmprss11g	T	A	5: 86,646,391 (GRCm39)	I59F	probably damaging	Het
Tmprss2	T	A	16: 97,368,377 (GRCm39)		probably null	Het
Tor1aip2	T	A	1: 155,927,588 (GRCm39)		probably benign	Het
Trim61	T	C	8: 65,466,044 (GRCm39)	I406V	possibly damaging	Het
Trpv5	T	C	6: 41,634,871 (GRCm39)	D486G	probably damaging	Het
Try5	T	C	6: 41,288,703 (GRCm39)	E64G	probably benign	Het
Txlnb	A	G	10: 17,675,168 (GRCm39)	E107G	probably damaging	Het
Ube2frt	A	G	12: 36,140,595 (GRCm39)		probably benign	Het
Uckl1	T	C	2: 181,212,320 (GRCm39)	Q332R	probably benign	Het
Ugt2b1	T	C	5: 87,065,572 (GRCm39)	Y489C	probably damaging	Het
Ugt2b5	T	A	5: 87,275,631 (GRCm39)	M407L	probably benign	Het
Vmn1r191	A	T	13: 22,362,985 (GRCm39)	S256R	possibly damaging	Het
Vps13b	T	G	15: 35,925,554 (GRCm39)		probably null	Het
Vps13d	A	G	4: 144,882,713 (GRCm39)	F960S	probably damaging	Het
Xab2	T	A	8: 3,666,094 (GRCm39)	D227V	probably damaging	Het
Xaf1	A	T	11: 72,197,432 (GRCm39)	D136V	possibly damaging	Het
Zan	A	G	5: 137,387,545 (GRCm39)	S4889P	unknown	Het
Zfp78	A	G	7: 6,381,558 (GRCm39)	T203A	probably benign	Het
Zfp821	T	C	8: 110,447,874 (GRCm39)	S72P	probably damaging	Het

Other mutations in Ddx20

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL01583:Ddx20	APN	3	105,593,986 (GRCm39)	missense	probably damaging	1.00
IGL01832:Ddx20	APN	3	105,586,327 (GRCm39)	missense	probably damaging	0.99
IGL02072:Ddx20	APN	3	105,587,943 (GRCm39)	missense	probably damaging	1.00
IGL02821:Ddx20	APN	3	105,586,593 (GRCm39)	missense	probably benign	0.00
R0520:Ddx20	UTSW	3	105,594,692 (GRCm39)	missense	probably benign
R0600:Ddx20	UTSW	3	105,586,396 (GRCm39)	missense	probably damaging	1.00
R1648:Ddx20	UTSW	3	105,586,504 (GRCm39)	missense	probably benign	0.08
R1817:Ddx20	UTSW	3	105,585,896 (GRCm39)	nonsense	probably null
R1843:Ddx20	UTSW	3	105,586,398 (GRCm39)	missense	probably benign	0.00
R1922:Ddx20	UTSW	3	105,585,900 (GRCm39)	missense	probably damaging	1.00
R1993:Ddx20	UTSW	3	105,586,660 (GRCm39)	nonsense	probably null
R2215:Ddx20	UTSW	3	105,587,656 (GRCm39)	splice site	probably benign
R2241:Ddx20	UTSW	3	105,590,521 (GRCm39)	nonsense	probably null
R2315:Ddx20	UTSW	3	105,586,015 (GRCm39)	missense	probably damaging	1.00
R4156:Ddx20	UTSW	3	105,586,249 (GRCm39)	missense	probably benign	0.41
R4790:Ddx20	UTSW	3	105,590,485 (GRCm39)	missense	probably benign	0.02
R4962:Ddx20	UTSW	3	105,587,921 (GRCm39)	missense	possibly damaging	0.95
R5072:Ddx20	UTSW	3	105,590,191 (GRCm39)	critical splice donor site	probably null
R5361:Ddx20	UTSW	3	105,590,825 (GRCm39)	missense	probably damaging	0.96
R5622:Ddx20	UTSW	3	105,586,327 (GRCm39)	missense	probably damaging	0.99
R5936:Ddx20	UTSW	3	105,587,903 (GRCm39)	missense	possibly damaging	0.96
R6007:Ddx20	UTSW	3	105,590,736 (GRCm39)	missense	possibly damaging	0.68
R6192:Ddx20	UTSW	3	105,586,036 (GRCm39)	missense	probably benign
R6916:Ddx20	UTSW	3	105,587,929 (GRCm39)	missense	probably damaging	1.00
R6957:Ddx20	UTSW	3	105,591,626 (GRCm39)	missense	probably benign	0.30
R6970:Ddx20	UTSW	3	105,587,674 (GRCm39)	missense	probably damaging	1.00
R8366:Ddx20	UTSW	3	105,594,695 (GRCm39)	missense	probably benign	0.37
R9176:Ddx20	UTSW	3	105,586,158 (GRCm39)	missense	probably benign	0.01
R9221:Ddx20	UTSW	3	105,587,685 (GRCm39)	nonsense	probably null
R9326:Ddx20	UTSW	3	105,591,735 (GRCm39)	missense	probably damaging	1.00
R9336:Ddx20	UTSW	3	105,585,903 (GRCm39)	missense	possibly damaging	0.93

Predicted Primers

PCR Primer
(F):5'- CCTGATGCTGGCTGTTACTG -3'
(R):5'- TCGATTAGGAGAGTTGGGTATACC -3'

Sequencing Primer
(F):5'- TCAACAGAGGTCTGAACAGAATTC -3'
(R):5'- ACGTAGACCAGATTGGCTTC -3'

Posted On

2014-08-01