Incidental Mutation 'D4043:Chd7'
ID260
Institutional Source Beutler Lab
Gene Symbol Chd7
Ensembl Gene ENSMUSG00000041235
Gene Namechromodomain helicase DNA binding protein 7
SynonymsA730019I05Rik, Cycn, Cyn, Dz, Edy, Flo, GENA 47, Gena 52, GENA 60, Lda, Mt, Obt, Todo, WBE1, Whi
Accession Numbers

Genbank: NM_001081417; MGI: 2444748

Is this an essential gene? Probably essential (E-score: 0.968) question?
Stock #D4043 (G3) of strain 483
Quality Score
Status Validated
Chromosome4
Chromosomal Location8690406-8867659 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to G at 8862650 bp
ZygosityHeterozygous
Amino Acid Change Aspartic acid to Glycine at position 2579 (D2579G)
Ref Sequence ENSEMBL: ENSMUSP00000059079 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000039267] [ENSMUST00000051558] [ENSMUST00000170391]
Predicted Effect probably damaging
Transcript: ENSMUST00000039267
AA Change: D2579G

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000043903
Gene: ENSMUSG00000041235
AA Change: D2579G

DomainStartEndE-ValueType
low complexity region 11 28 N/A INTRINSIC
low complexity region 48 59 N/A INTRINSIC
low complexity region 107 129 N/A INTRINSIC
low complexity region 152 178 N/A INTRINSIC
low complexity region 194 206 N/A INTRINSIC
low complexity region 385 400 N/A INTRINSIC
low complexity region 491 504 N/A INTRINSIC
low complexity region 512 535 N/A INTRINSIC
low complexity region 585 595 N/A INTRINSIC
low complexity region 632 696 N/A INTRINSIC
low complexity region 721 733 N/A INTRINSIC
low complexity region 735 748 N/A INTRINSIC
low complexity region 759 768 N/A INTRINSIC
CHROMO 789 854 2.54e-9 SMART
CHROMO 870 927 2.94e-5 SMART
low complexity region 928 939 N/A INTRINSIC
DEXDc 954 1155 9.64e-38 SMART
HELICc 1310 1394 1.67e-23 SMART
Blast:DEXDc 1608 1653 8e-16 BLAST
low complexity region 1728 1739 N/A INTRINSIC
internal_repeat_2 1774 1825 1.31e-5 PROSPERO
low complexity region 1831 1846 N/A INTRINSIC
low complexity region 1898 1906 N/A INTRINSIC
low complexity region 1929 1947 N/A INTRINSIC
SANT 1952 2011 9.31e-1 SMART
internal_repeat_2 2079 2126 1.31e-5 PROSPERO
low complexity region 2173 2195 N/A INTRINSIC
low complexity region 2218 2244 N/A INTRINSIC
low complexity region 2387 2407 N/A INTRINSIC
low complexity region 2437 2452 N/A INTRINSIC
BRK 2553 2602 6.57e-23 SMART
BRK 2631 2675 3.77e-23 SMART
low complexity region 2715 2725 N/A INTRINSIC
low complexity region 2746 2758 N/A INTRINSIC
low complexity region 2769 2778 N/A INTRINSIC
low complexity region 2785 2796 N/A INTRINSIC
low complexity region 2810 2821 N/A INTRINSIC
low complexity region 2897 2916 N/A INTRINSIC
low complexity region 2967 2980 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000051558
AA Change: D2579G

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000059079
Gene: ENSMUSG00000041235
AA Change: D2579G

DomainStartEndE-ValueType
low complexity region 11 28 N/A INTRINSIC
low complexity region 48 59 N/A INTRINSIC
low complexity region 107 129 N/A INTRINSIC
low complexity region 152 178 N/A INTRINSIC
low complexity region 194 206 N/A INTRINSIC
low complexity region 385 400 N/A INTRINSIC
low complexity region 491 504 N/A INTRINSIC
low complexity region 512 535 N/A INTRINSIC
low complexity region 585 595 N/A INTRINSIC
low complexity region 632 696 N/A INTRINSIC
low complexity region 721 733 N/A INTRINSIC
low complexity region 735 748 N/A INTRINSIC
low complexity region 759 768 N/A INTRINSIC
CHROMO 789 854 2.54e-9 SMART
CHROMO 870 927 2.94e-5 SMART
low complexity region 928 939 N/A INTRINSIC
DEXDc 954 1155 9.64e-38 SMART
HELICc 1310 1394 1.67e-23 SMART
Blast:DEXDc 1608 1653 8e-16 BLAST
low complexity region 1728 1739 N/A INTRINSIC
internal_repeat_2 1774 1825 1.31e-5 PROSPERO
low complexity region 1831 1846 N/A INTRINSIC
low complexity region 1898 1906 N/A INTRINSIC
low complexity region 1929 1947 N/A INTRINSIC
SANT 1952 2011 9.31e-1 SMART
internal_repeat_2 2079 2126 1.31e-5 PROSPERO
low complexity region 2173 2195 N/A INTRINSIC
low complexity region 2218 2244 N/A INTRINSIC
low complexity region 2387 2407 N/A INTRINSIC
low complexity region 2437 2452 N/A INTRINSIC
BRK 2553 2602 6.57e-23 SMART
BRK 2631 2675 3.77e-23 SMART
low complexity region 2715 2725 N/A INTRINSIC
low complexity region 2746 2758 N/A INTRINSIC
low complexity region 2769 2778 N/A INTRINSIC
low complexity region 2785 2796 N/A INTRINSIC
low complexity region 2810 2821 N/A INTRINSIC
low complexity region 2897 2916 N/A INTRINSIC
low complexity region 2967 2980 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000170391
SMART Domains Protein: ENSMUSP00000127007
Gene: ENSMUSG00000041235

DomainStartEndE-ValueType
low complexity region 11 28 N/A INTRINSIC
low complexity region 48 59 N/A INTRINSIC
low complexity region 107 129 N/A INTRINSIC
low complexity region 152 178 N/A INTRINSIC
low complexity region 194 206 N/A INTRINSIC
low complexity region 385 400 N/A INTRINSIC
low complexity region 491 504 N/A INTRINSIC
low complexity region 512 535 N/A INTRINSIC
BRK 586 630 3.77e-23 SMART
low complexity region 670 680 N/A INTRINSIC
low complexity region 701 713 N/A INTRINSIC
low complexity region 724 733 N/A INTRINSIC
low complexity region 740 751 N/A INTRINSIC
low complexity region 765 776 N/A INTRINSIC
low complexity region 852 871 N/A INTRINSIC
low complexity region 922 935 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000222546
Meta Mutation Damage Score 0.178 question?
Coding Region Coverage
  • 1x: 88.8%
  • 3x: 72.5%
Validation Efficiency 88% (220/249)
MGI Phenotype FUNCTION: This gene encodes a protein containing two chromodomains and an ATP-binding helicase domain that functions as a regulator of transcription. Mutations in this gene result in an array of development defects, including inner ear problems. Mice defective for this gene exhibit many of the clinical features of the CHARGE syndrome caused by mutations in the homologous gene in human. [provided by RefSeq, Sep 2015]
PHENOTYPE: Heterozygotes for mutations of this gene exhibit a variety of combinations of hyperactivity, circling, head-bobbing, semicircular canal defects, hearing loss, reduced size, and tail-kink. [provided by MGI curators]
Allele List at MGI

All alleles(32) : Targeted, other(4) Gene trapped(19) Chemically induced(9)

Other mutations in this stock
Total: 25 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1110020G09Rik T A 15: 9,103,385 probably benign Homo
1700029J07Rik A G 8: 45,956,403 V293A probably damaging Het
Adam29 A T 8: 55,872,461 C319* probably null Het
Adgrg1 T C 8: 95,005,229 probably null Homo
Ago3 A T 4: 126,351,003 V630E probably damaging Het
Armc8 G T 9: 99,483,976 N628K probably benign Het
Duox1 G A 2: 122,344,795 C1358Y probably benign Het
Fam208a A G 14: 27,471,992 I1050V probably benign Het
Ftsj3 C A 11: 106,254,808 M66I possibly damaging Homo
Iqub C T 6: 24,505,751 E53K possibly damaging Het
Kirrel T A 3: 87,083,203 T771S probably benign Het
Lrrc66 A T 5: 73,607,526 S725T probably benign Het
Mael T C 1: 166,236,886 I104M probably benign Homo
Mkks C T 2: 136,874,610 V457I probably benign Het
Npas1 T C 7: 16,463,244 probably null Het
Ocrl T C X: 47,936,323 V359A probably benign Homo
Olfr1065 G A 2: 86,445,220 T254M probably damaging Het
Pde6b C T 5: 108,425,356 R531* probably null Het
Polr1a G A 6: 71,941,417 C653Y possibly damaging Het
Rbm26 A G 14: 105,152,540 V216A possibly damaging Het
Rin2 C A 2: 145,822,363 H52Q possibly damaging Het
Ssc5d C T 7: 4,943,983 T1112I possibly damaging Het
Sv2c C T 13: 96,088,481 V107M probably benign Het
Tulp3 G A 6: 128,324,150 S366L probably benign Het
Zfp831 T A 2: 174,645,266 V578E probably benign Homo
Other mutations in Chd7
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00422:Chd7 APN 4 8859106 missense probably damaging 1.00
IGL00510:Chd7 APN 4 8801404 missense probably damaging 1.00
IGL00741:Chd7 APN 4 8839454 missense probably damaging 1.00
IGL00796:Chd7 APN 4 8847271 missense possibly damaging 0.95
IGL00907:Chd7 APN 4 8840435 missense probably damaging 0.98
IGL00930:Chd7 APN 4 8805181 missense probably damaging 1.00
IGL01542:Chd7 APN 4 8859285 missense possibly damaging 0.71
IGL01602:Chd7 APN 4 8833834 missense probably damaging 1.00
IGL01605:Chd7 APN 4 8833834 missense probably damaging 1.00
IGL01670:Chd7 APN 4 8827033 missense probably damaging 0.98
IGL02434:Chd7 APN 4 8752145 missense probably benign 0.00
IGL02531:Chd7 APN 4 8854134 missense probably damaging 1.00
IGL02626:Chd7 APN 4 8826519 missense probably damaging 1.00
IGL02961:Chd7 APN 4 8751542 missense probably damaging 1.00
IGL02972:Chd7 APN 4 8855174 missense probably benign 0.30
IGL03329:Chd7 APN 4 8841108 missense probably damaging 1.00
IGL02991:Chd7 UTSW 4 8828398 missense possibly damaging 0.91
R0157:Chd7 UTSW 4 8833759 missense probably damaging 1.00
R0179:Chd7 UTSW 4 8862516 missense probably benign 0.22
R0240:Chd7 UTSW 4 8852670 unclassified probably benign
R0388:Chd7 UTSW 4 8854560 missense probably benign 0.27
R0462:Chd7 UTSW 4 8850821 missense probably damaging 1.00
R0512:Chd7 UTSW 4 8805139 intron probably benign
R0657:Chd7 UTSW 4 8753141 missense probably damaging 1.00
R0799:Chd7 UTSW 4 8801310 intron probably benign
R0885:Chd7 UTSW 4 8866432 missense probably damaging 1.00
R1056:Chd7 UTSW 4 8822402 missense possibly damaging 0.50
R1086:Chd7 UTSW 4 8866458 missense probably benign 0.04
R1353:Chd7 UTSW 4 8839556 missense probably damaging 0.99
R1466:Chd7 UTSW 4 8840561 splice site probably null
R1466:Chd7 UTSW 4 8840561 splice site probably null
R1605:Chd7 UTSW 4 8844675 missense probably damaging 1.00
R1693:Chd7 UTSW 4 8864307 critical splice donor site probably null
R1695:Chd7 UTSW 4 8833960 missense probably damaging 1.00
R1938:Chd7 UTSW 4 8847200 missense probably damaging 1.00
R1964:Chd7 UTSW 4 8865978 missense probably damaging 0.96
R2020:Chd7 UTSW 4 8855226 missense probably benign 0.00
R2134:Chd7 UTSW 4 8753147 missense probably damaging 0.99
R2171:Chd7 UTSW 4 8752424 missense probably damaging 1.00
R2271:Chd7 UTSW 4 8785532 missense probably damaging 1.00
R2300:Chd7 UTSW 4 8855241 missense probably benign 0.02
R2355:Chd7 UTSW 4 8801350 missense possibly damaging 0.95
R3153:Chd7 UTSW 4 8855174 missense probably benign 0.30
R3430:Chd7 UTSW 4 8844517 missense probably damaging 0.99
R3746:Chd7 UTSW 4 8752537 missense probably damaging 1.00
R4118:Chd7 UTSW 4 8865831 missense probably damaging 1.00
R4119:Chd7 UTSW 4 8785658 intron probably benign
R4332:Chd7 UTSW 4 8854143 missense probably damaging 1.00
R4402:Chd7 UTSW 4 8866353 missense possibly damaging 0.61
R4571:Chd7 UTSW 4 8866217 missense probably benign 0.09
R4722:Chd7 UTSW 4 8822445 missense probably damaging 1.00
R4821:Chd7 UTSW 4 8844706 missense probably damaging 1.00
R4894:Chd7 UTSW 4 8838629 missense probably damaging 0.99
R5205:Chd7 UTSW 4 8752509 missense possibly damaging 0.60
R5344:Chd7 UTSW 4 8844417 missense probably damaging 1.00
R5484:Chd7 UTSW 4 8828258 missense probably damaging 1.00
R5578:Chd7 UTSW 4 8847149 missense probably benign 0.09
R5583:Chd7 UTSW 4 8752473 missense probably damaging 1.00
R5888:Chd7 UTSW 4 8866382 missense probably damaging 0.98
R5905:Chd7 UTSW 4 8840553 missense possibly damaging 0.91
R6091:Chd7 UTSW 4 8751875 missense probably damaging 0.99
R6126:Chd7 UTSW 4 8826482 missense probably damaging 1.00
R6399:Chd7 UTSW 4 8828274 missense probably damaging 1.00
R6751:Chd7 UTSW 4 8833866 missense probably damaging 1.00
R6810:Chd7 UTSW 4 8839523 missense probably damaging 1.00
R6868:Chd7 UTSW 4 8811501 splice site probably null
R6952:Chd7 UTSW 4 8856797 missense probably damaging 1.00
R6986:Chd7 UTSW 4 8859285 missense possibly damaging 0.71
R6990:Chd7 UTSW 4 8844525 missense probably benign 0.28
Nature of Mutation

DNA sequencing using the SOLiD technique identified an A to G transition at position 8064 of the Chd7transcript in exon 35 of 38 total exons. Multiple transcripts of the Chd7 gene are displayed on Ensembl and Vega. The mutated nucleotide causes an aspartic acid to glycine substitution at amino acid 2579 of the encoded protein. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).

 
Protein Function and Prediction
The Chd7 gene encodes multiple isoforms of a transcriptional regulator that binds to chromatin. Isoform 1 contains 2986 amino acids with two Chromo domains at residues 790-857 and 872-937, a helicase ATP-binding domain at residues 970-1144, and a helicase C-terminal domain at residues 1284-1454. ATP binding occurs at amino acids 983-990 (Uniprot A2AJK6). CHD7 is essential for the formation of multipotent migratory neural crest, a transient cell population that is ectodermal in origin but undergoes a major transcriptional reprogramming event to acquire a remarkably broad differentiation potential and ability to migrate throughout the body, giving rise to craniofacial bones and cartilages, the peripheral nervous system, pigmentation, and cardiac structures. Heterozygote mice for mutations of this gene exhibit a variety of combinations of hyperactivity, circling, head-bobbing, semicircular canal defects, hearing loss, reduced size, and tail-kink. Human heterozygous mutations cause CHARGE syndrome (OMIM 214800), a pattern of congenital anomalies including choanal atresia and malformations of the heart, inner ear, and retina.
 
The D2579G change is predicted to be possibly damaging by the PolyPhen program.
Posted On2010-08-09