Incidental Mutation 'R4991:Chmp4b'
ID 386177
Institutional Source Beutler Lab
Gene Symbol Chmp4b
Ensembl Gene ENSMUSG00000038467
Gene Name charged multivesicular body protein 4B
Synonyms chromatin modifying protein 4B, 2010012F05Rik, Snf7-2
MMRRC Submission 042585-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R4991 (G1)
Quality Score 210
Status Validated
Chromosome 2
Chromosomal Location 154498949-154536703 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 154534545 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glutamic Acid to Glycine at position 187 (E187G)
Ref Sequence ENSEMBL: ENSMUSP00000036206 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000044277]
AlphaFold Q9D8B3
Predicted Effect probably benign
Transcript: ENSMUST00000044277
AA Change: E187G

PolyPhen 2 Score 0.005 (Sensitivity: 0.97; Specificity: 0.74)
SMART Domains Protein: ENSMUSP00000036206
Gene: ENSMUSG00000038467
AA Change: E187G

DomainStartEndE-ValueType
low complexity region 4 19 N/A INTRINSIC
Pfam:Snf7 24 199 8.5e-61 PFAM
low complexity region 205 216 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000136788
Predicted Effect noncoding transcript
Transcript: ENSMUST00000151668
Meta Mutation Damage Score 0.0714 question?
Coding Region Coverage
  • 1x: 99.0%
  • 3x: 98.2%
  • 10x: 95.7%
  • 20x: 90.0%
Validation Efficiency 95% (73/77)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a member of the chromatin-modifying protein/charged multivesicular body protein (CHMP) protein family. The protein is part of the endosomal sorting complex required for transport (ESCRT) complex III (ESCRT-III), which functions in the sorting of endocytosed cell-surface receptors into multivesicular endosomes. The ESCRT machinery also functions in the final abscisson stage of cytokinesis and in the budding of enveloped viruses such as HIV-1. The three proteins of the CHMP4 subfamily interact with programmed cell death 6 interacting protein (PDCD6IP, also known as ALIX), which also functions in the ESCRT pathway. The CHMP4 proteins assemble into membrane-attached 5-nm filaments that form circular scaffolds and promote or stabilize outward budding. These polymers are proposed to help generate the luminal vesicles of multivesicular bodies. Mutations in this gene result in autosomal dominant posterior polar cataracts.[provided by RefSeq, Oct 2009]
PHENOTYPE: Mice homozygous for a gene trap insertion die between E7.5 and E8.5. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 62 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adcy4 G T 14: 56,010,922 (GRCm39) T665K probably benign Het
Adgrf3 C T 5: 30,404,146 (GRCm39) V369M probably benign Het
Als2 T C 1: 59,246,927 (GRCm39) K571E probably benign Het
Amer3 A C 1: 34,627,822 (GRCm39) D687A probably benign Het
Asb14 T C 14: 26,637,015 (GRCm39) S586P probably damaging Het
Catspere2 A C 1: 177,925,987 (GRCm39) I218L probably benign Het
Cox6b2 T C 7: 4,755,160 (GRCm39) D38G probably damaging Het
Cpm G A 10: 117,504,008 (GRCm39) C138Y probably damaging Het
Csmd3 G T 15: 47,864,874 (GRCm39) P785Q probably damaging Het
Cstf1 A G 2: 172,219,720 (GRCm39) Y277C probably damaging Het
Cstf2t T A 19: 31,061,983 (GRCm39) N506K probably damaging Het
Dmpk C G 7: 18,821,944 (GRCm39) L301V probably benign Het
Ebf2 A T 14: 67,627,106 (GRCm39) T265S possibly damaging Het
Elmo1 T C 13: 20,526,689 (GRCm39) F413S probably damaging Het
Fbp1 C T 13: 63,012,888 (GRCm39) V102I probably benign Het
Gm19684 A G 17: 36,438,364 (GRCm39) probably benign Het
Gm29106 T C 1: 118,106,121 (GRCm39) M37T probably benign Het
Grem2 A G 1: 174,664,379 (GRCm39) C157R probably damaging Het
Hdac5 T A 11: 102,096,450 (GRCm39) E252D probably damaging Het
Ifitm3 A T 7: 140,590,372 (GRCm39) F63I probably damaging Het
Igkv4-80 A C 6: 68,993,649 (GRCm39) S81A probably benign Het
Irx4 G T 13: 73,413,626 (GRCm39) R32L probably benign Het
Itgb1bp1 C T 12: 21,324,849 (GRCm39) G69D probably damaging Het
Kcnh3 A G 15: 99,130,637 (GRCm39) D418G probably benign Het
Kif1a T C 1: 93,006,530 (GRCm39) T46A probably benign Het
Klk1b26 T A 7: 43,665,673 (GRCm39) probably null Het
Lca5l T C 16: 95,960,932 (GRCm39) E510G possibly damaging Het
Lrriq1 A G 10: 103,036,420 (GRCm39) I911T probably damaging Het
Mios T G 6: 8,215,847 (GRCm39) S348A probably benign Het
Mog T C 17: 37,328,381 (GRCm39) probably null Het
Mtmr7 A G 8: 41,007,386 (GRCm39) S516P probably damaging Het
Nat8f4 T C 6: 85,878,122 (GRCm39) K134E probably benign Het
Nbeal2 C T 9: 110,467,835 (GRCm39) C451Y probably damaging Het
Nkx2-1 T C 12: 56,581,724 (GRCm39) Y41C possibly damaging Het
Nmnat1 G A 4: 149,553,584 (GRCm39) T176M possibly damaging Het
Nrxn3 T A 12: 89,227,244 (GRCm39) I293N probably damaging Het
Or5af2 T C 11: 58,708,544 (GRCm39) S237P probably damaging Het
Or5b97 T G 19: 12,878,815 (GRCm39) T110P probably damaging Het
Or5m8 A G 2: 85,822,631 (GRCm39) M157V probably damaging Het
Osgin1 A G 8: 120,172,028 (GRCm39) E274G probably damaging Het
Otof G A 5: 30,551,525 (GRCm39) R343W probably damaging Het
Pcdha9 A T 18: 37,131,398 (GRCm39) I156F probably damaging Het
Pcsk4 A G 10: 80,161,215 (GRCm39) I233T possibly damaging Het
Pira12 T G 7: 3,898,571 (GRCm39) Q292H probably benign Het
Samd4 A T 14: 47,311,467 (GRCm39) S262C probably damaging Het
Snap91 T C 9: 86,672,207 (GRCm39) probably null Het
Spata31d1a T C 13: 59,850,965 (GRCm39) N388D probably benign Het
St3gal4 A G 9: 34,964,432 (GRCm39) V190A possibly damaging Het
Sv2b T C 7: 74,767,470 (GRCm39) N642S possibly damaging Het
Svil T A 18: 5,056,810 (GRCm39) I561K probably benign Het
Tmem201 A T 4: 149,812,612 (GRCm39) Y235N possibly damaging Het
Tpx2 T C 2: 152,711,644 (GRCm39) S60P probably benign Het
Trpa1 T C 1: 14,980,970 (GRCm39) Y144C probably benign Het
U90926 G A 5: 92,357,879 (GRCm39) P91S probably benign Het
Utp20 G T 10: 88,582,796 (GRCm39) H2780Q probably benign Het
Vmn1r215 T G 13: 23,260,697 (GRCm39) F246V probably damaging Het
Vmn2r72 A G 7: 85,400,338 (GRCm39) L237S probably damaging Het
Washc5 A G 15: 59,215,929 (GRCm39) S817P probably damaging Het
Zbtb24 A G 10: 41,332,614 (GRCm39) probably null Het
Zfp212 G A 6: 47,903,796 (GRCm39) R127H probably damaging Het
Zfp268 C A 4: 145,348,904 (GRCm39) Q114K probably benign Het
Zfp740 G T 15: 102,116,714 (GRCm39) probably null Het
Other mutations in Chmp4b
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01879:Chmp4b APN 2 154,534,601 (GRCm39) splice site probably benign
R1460:Chmp4b UTSW 2 154,534,515 (GRCm39) missense possibly damaging 0.93
R1717:Chmp4b UTSW 2 154,499,240 (GRCm39) missense possibly damaging 0.62
R5932:Chmp4b UTSW 2 154,533,201 (GRCm39) missense probably benign 0.35
R7065:Chmp4b UTSW 2 154,533,162 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- TTCATCCCAGCAGGTTCAC -3'
(R):5'- GTACTGCTCTGGAGAAACCC -3'

Sequencing Primer
(F):5'- AGCAGGTTCACAGGGCATC -3'
(R):5'- GGGAACGTCACACAGCACTG -3'
Posted On 2016-05-10