Incidental Mutation 'P0016:Mbd1'
ID 7569
Institutional Source Beutler Lab
Gene Symbol Mbd1
Ensembl Gene ENSMUSG00000024561
Gene Name methyl-CpG binding domain protein 1
Synonyms PCM1, Cxxc3
MMRRC Submission 038269-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # P0016 (G1)
Quality Score
Status Validated
Chromosome 18
Chromosomal Location 74400676-74415803 bp(+) (GRCm39)
Type of Mutation nonsense
DNA Base Change (assembly) C to T at 74407609 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Stop codon at position 130 (R130*)
Ref Sequence ENSEMBL: ENSMUSP00000153085 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000097530] [ENSMUST00000224047] [ENSMUST00000224332]
AlphaFold no structure available at present
Predicted Effect probably null
Transcript: ENSMUST00000097530
AA Change: R240*
SMART Domains Protein: ENSMUSP00000095137
Gene: ENSMUSG00000024561
AA Change: R240*

DomainStartEndE-ValueType
MBD 3 76 3.94e-27 SMART
low complexity region 82 97 N/A INTRINSIC
low complexity region 123 153 N/A INTRINSIC
Pfam:zf-CXXC 194 241 1.9e-13 PFAM
Pfam:zf-CXXC 243 288 1.2e-13 PFAM
low complexity region 358 368 N/A INTRINSIC
low complexity region 513 527 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000224047
AA Change: R240*
Predicted Effect noncoding transcript
Transcript: ENSMUST00000224159
Predicted Effect probably null
Transcript: ENSMUST00000224332
AA Change: R130*
Predicted Effect noncoding transcript
Transcript: ENSMUST00000224907
Meta Mutation Damage Score 0.9755 question?
Coding Region Coverage
  • 1x: 85.6%
  • 3x: 81.0%
  • 10x: 66.8%
  • 20x: 50.1%
Validation Efficiency 96% (97/101)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene is a member of a family of nuclear proteins related by the presence of a methyl-CpG binding domain (MBD). These proteins are capable of binding specifically to methylated DNA, and some members can also repress transcription from methylated gene promoters. This protein contains multiple domains: MBD at the N-terminus that functions both in binding to methylated DNA and in protein interactions; several CXXC-type zinc finger domains that mediate binding to non-methylated CpG dinucleotides; transcriptional repression domain (TRD) at the C-terminus that is involved in transcription repression and in protein interactions. Numerous alternatively spliced transcript variants encoding different isoforms have been noted for this gene.[provided by RefSeq, Feb 2011]
PHENOTYPE: Homozygous null exhibited defects in adult hippocampal neurogenesis and function. Spatial learning was also impaired in mutant mice. [provided by MGI curators]
Allele List at MGI

All alleles(3) : Targeted(2) Gene trapped(1)

Other mutations in this stock
Total: 18 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700123K08Rik A T 5: 138,561,200 (GRCm39) L154* probably null Het
4930432E11Rik T C 7: 29,262,537 (GRCm39) noncoding transcript Het
Arap3 T A 18: 38,117,401 (GRCm39) T892S probably benign Het
Ctnnd2 G A 15: 30,967,084 (GRCm39) V987I probably benign Het
Dennd6b T C 15: 89,071,180 (GRCm39) I351V probably benign Het
Kif27 G A 13: 58,451,266 (GRCm39) Q1021* probably null Het
Klb G A 5: 65,537,266 (GRCm39) W865* probably null Het
Mroh7 T A 4: 106,565,054 (GRCm39) probably null Het
Myo16 C T 8: 10,450,596 (GRCm39) probably benign Het
Rbm22 T A 18: 60,703,842 (GRCm39) probably benign Het
Rnaseh2a C G 8: 85,686,429 (GRCm39) D206H probably damaging Het
Slain1 A G 14: 103,923,110 (GRCm39) T187A probably benign Het
Slamf6 A G 1: 171,764,068 (GRCm39) T154A probably damaging Het
Traip A G 9: 107,845,855 (GRCm39) D316G possibly damaging Het
Ttn T C 2: 76,641,527 (GRCm39) D5196G probably damaging Het
Ubr5 C T 15: 38,000,822 (GRCm39) V1569M probably damaging Het
Zfp750 T A 11: 121,404,804 (GRCm39) K24* probably null Het
Zfp799 T C 17: 33,038,331 (GRCm39) E645G possibly damaging Het
Other mutations in Mbd1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00902:Mbd1 APN 18 74,408,310 (GRCm39) missense possibly damaging 0.72
IGL01551:Mbd1 APN 18 74,402,614 (GRCm39) unclassified probably benign
IGL02213:Mbd1 APN 18 74,408,453 (GRCm39) missense probably damaging 1.00
IGL02562:Mbd1 APN 18 74,409,993 (GRCm39) missense probably benign 0.00
IGL02596:Mbd1 APN 18 74,409,868 (GRCm39) splice site probably benign
IGL02944:Mbd1 APN 18 74,410,481 (GRCm39) missense probably damaging 1.00
IGL02973:Mbd1 APN 18 74,408,498 (GRCm39) splice site probably benign
IGL03200:Mbd1 APN 18 74,409,502 (GRCm39) missense probably benign 0.02
IGL03247:Mbd1 APN 18 74,407,825 (GRCm39) nonsense probably null
IGL03340:Mbd1 APN 18 74,407,553 (GRCm39) missense probably benign 0.00
Shortbread UTSW 18 74,407,128 (GRCm39) critical splice donor site probably null
FR4737:Mbd1 UTSW 18 74,406,644 (GRCm39) small deletion probably benign
R0385:Mbd1 UTSW 18 74,406,312 (GRCm39) frame shift probably null
R0630:Mbd1 UTSW 18 74,409,798 (GRCm39) splice site probably benign
R0717:Mbd1 UTSW 18 74,406,668 (GRCm39) missense possibly damaging 0.89
R1084:Mbd1 UTSW 18 74,402,603 (GRCm39) missense probably damaging 1.00
R1290:Mbd1 UTSW 18 74,402,557 (GRCm39) missense possibly damaging 0.59
R1575:Mbd1 UTSW 18 74,408,490 (GRCm39) critical splice donor site probably null
R2065:Mbd1 UTSW 18 74,409,955 (GRCm39) missense probably damaging 1.00
R2192:Mbd1 UTSW 18 74,410,449 (GRCm39) missense probably damaging 0.99
R2308:Mbd1 UTSW 18 74,409,548 (GRCm39) missense probably benign 0.42
R2697:Mbd1 UTSW 18 74,406,688 (GRCm39) missense possibly damaging 0.95
R3407:Mbd1 UTSW 18 74,410,438 (GRCm39) missense possibly damaging 0.94
R4348:Mbd1 UTSW 18 74,407,487 (GRCm39) missense probably damaging 1.00
R4664:Mbd1 UTSW 18 74,402,597 (GRCm39) missense possibly damaging 0.86
R5460:Mbd1 UTSW 18 74,402,581 (GRCm39) missense probably benign 0.03
R5860:Mbd1 UTSW 18 74,409,768 (GRCm39) nonsense probably null
R6431:Mbd1 UTSW 18 74,406,762 (GRCm39) splice site probably null
R6734:Mbd1 UTSW 18 74,409,114 (GRCm39) missense probably damaging 1.00
R6861:Mbd1 UTSW 18 74,406,645 (GRCm39)
R7363:Mbd1 UTSW 18 74,406,357 (GRCm39) missense probably damaging 0.97
R7543:Mbd1 UTSW 18 74,407,520 (GRCm39) missense probably damaging 0.97
R7657:Mbd1 UTSW 18 74,407,804 (GRCm39) missense probably damaging 0.99
R7871:Mbd1 UTSW 18 74,407,128 (GRCm39) critical splice donor site probably null
R8960:Mbd1 UTSW 18 74,406,890 (GRCm39) critical splice donor site probably null
R9161:Mbd1 UTSW 18 74,407,792 (GRCm39) missense probably benign 0.01
R9774:Mbd1 UTSW 18 74,408,274 (GRCm39) missense probably benign
RF005:Mbd1 UTSW 18 74,406,644 (GRCm39) small deletion probably benign
RF011:Mbd1 UTSW 18 74,406,681 (GRCm39) small deletion probably benign
RF024:Mbd1 UTSW 18 74,406,681 (GRCm39) small deletion probably benign
RF024:Mbd1 UTSW 18 74,406,644 (GRCm39) small deletion probably benign
RF058:Mbd1 UTSW 18 74,406,680 (GRCm39) frame shift probably null
Z1177:Mbd1 UTSW 18 74,410,010 (GRCm39) missense probably null 0.72
Protein Function and Prediction

Mbd1 is a factor in DNA methylation-mediated epigenetic gene regulation (1;2).  Mbd1 expression is important in brain development and cognitive functions (1).  Mbd proteins bind to methyl-CpG pairs to repress transcription (2).

Expression/Localization

Mbd1 is expressed in both neural progenitors and neurons (3).

Background

Mbd1tm1Fhg/tm1Fhg; MGI:2664084

129S4/SvJae-Mbd1tm1Fhg

Homozygous null animals exhibit abnormal neuron differentiation, reductions in hippocampal neurogenesis, decreased brain weight, and reduced hippocampal function (3). Adult homozygotes are healthy and display no significant deficits in motor coordination or locomotor activity, although spatial learning is impaired (3). Homozygous animals also have aneuploidy, chromosomal instability, and chromosomal breakage; no chromosomal translocation was detected (3).

Mbd1tm1Fhg/tm1Fhg; MGI:2664084

129S4 x C57BL/6

Homozygous mice exhibit no gross abnormality and have nearly normal lifespan (1).  However, they exhibit several core deficits frequently associated with autism, including reduced social interaction, learning deficits, anxiety, defective sensory motor gating, depression and abnormal brain serotonin activity (1).

References
Posted On 2012-10-05
Science Writer Anne Murray