Incidental Mutation 'R0368:Chrnb1'
ID 30331
Institutional Source Beutler Lab
Gene Symbol Chrnb1
Ensembl Gene ENSMUSG00000041189
Gene Name cholinergic receptor nicotinic beta 1 subunit
Synonyms Acrb, Achr-2, AChR beta
MMRRC Submission 038574-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.895) question?
Stock # R0368 (G1)
Quality Score 225
Status Not validated
Chromosome 11
Chromosomal Location 69674862-69686742 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 69675583 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Lysine to Methionine at position 457 (K457M)
Ref Sequence ENSEMBL: ENSMUSP00000047270 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000045971] [ENSMUST00000108639] [ENSMUST00000108640] [ENSMUST00000108642]
AlphaFold P09690
Predicted Effect probably damaging
Transcript: ENSMUST00000045971
AA Change: K457M

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000047270
Gene: ENSMUSG00000041189
AA Change: K457M

DomainStartEndE-ValueType
low complexity region 2 21 N/A INTRINSIC
Pfam:Neur_chan_LBD 27 245 3.6e-65 PFAM
Pfam:Neur_chan_memb 252 487 3.5e-75 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000108639
SMART Domains Protein: ENSMUSP00000104279
Gene: ENSMUSG00000018750

DomainStartEndE-ValueType
BTB 30 166 2e-15 SMART
ZnF_C2H2 210 230 1.91e1 SMART
low complexity region 240 261 N/A INTRINSIC
low complexity region 274 283 N/A INTRINSIC
ZnF_C2H2 285 307 1.53e-1 SMART
ZnF_C2H2 313 335 1.91e1 SMART
ZnF_C2H2 341 364 5.81e-2 SMART
low complexity region 422 445 N/A INTRINSIC
low complexity region 461 482 N/A INTRINSIC
low complexity region 485 532 N/A INTRINSIC
low complexity region 551 568 N/A INTRINSIC
coiled coil region 601 637 N/A INTRINSIC
low complexity region 650 662 N/A INTRINSIC
low complexity region 664 673 N/A INTRINSIC
ZnF_C2H2 700 722 3.78e-1 SMART
ZnF_C2H2 739 761 6.23e-2 SMART
low complexity region 799 820 N/A INTRINSIC
low complexity region 947 961 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000108640
SMART Domains Protein: ENSMUSP00000104280
Gene: ENSMUSG00000018750

DomainStartEndE-ValueType
BTB 30 166 2e-15 SMART
ZnF_C2H2 210 230 1.91e1 SMART
low complexity region 240 261 N/A INTRINSIC
low complexity region 274 283 N/A INTRINSIC
ZnF_C2H2 285 307 1.53e-1 SMART
ZnF_C2H2 313 335 1.91e1 SMART
ZnF_C2H2 341 364 5.81e-2 SMART
low complexity region 422 445 N/A INTRINSIC
low complexity region 461 482 N/A INTRINSIC
low complexity region 485 532 N/A INTRINSIC
low complexity region 551 568 N/A INTRINSIC
coiled coil region 601 637 N/A INTRINSIC
low complexity region 650 662 N/A INTRINSIC
low complexity region 664 673 N/A INTRINSIC
ZnF_C2H2 700 722 3.78e-1 SMART
ZnF_C2H2 739 761 6.23e-2 SMART
low complexity region 799 820 N/A INTRINSIC
low complexity region 947 961 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000108642
SMART Domains Protein: ENSMUSP00000104282
Gene: ENSMUSG00000018750

DomainStartEndE-ValueType
BTB 30 166 2e-15 SMART
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.1%
  • 10x: 95.7%
  • 20x: 90.5%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The muscle acetylcholine receptor is composed of five subunits: two alpha subunits and one beta, one gamma, and one delta subunit. This gene encodes the beta subunit of the acetylcholine receptor. The acetylcholine receptor changes conformation upon acetylcholine binding leading to the opening of an ion-conducting channel across the plasma membrane. Mutations in this gene are associated with slow-channel congenital myasthenic syndrome. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a knock-in allele lack all tyrosine residues in the beta subunit intracellular loop, display reduced and simplified neuromuscular junctions, and show defective acetylcholine receptor clustering and anchoring at synapses. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 51 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ahnak A T 19: 8,985,714 (GRCm39) K2333* probably null Het
Aox4 C T 1: 58,252,238 (GRCm39) L38F probably benign Het
Arhgef15 T C 11: 68,845,519 (GRCm39) E111G probably damaging Het
Atp8a2 A T 14: 60,097,661 (GRCm39) I789N probably damaging Het
Cdca2 A G 14: 67,937,796 (GRCm39) S286P possibly damaging Het
Cimip2a T A 2: 25,110,685 (GRCm39) D164E probably benign Het
Clec2g A G 6: 128,957,224 (GRCm39) I61V possibly damaging Het
Cyb5r3 G A 15: 83,042,993 (GRCm39) A233V probably benign Het
Cyp4a10 T A 4: 115,382,574 (GRCm39) L278* probably null Het
Dnmt1 T C 9: 20,853,053 (GRCm39) E56G probably damaging Het
Fbln5 A G 12: 101,775,973 (GRCm39) probably null Het
Fhip2a A G 19: 57,357,010 (GRCm39) T34A possibly damaging Het
G3bp1 T C 11: 55,389,452 (GRCm39) F383L probably damaging Het
Gabrr3 A G 16: 59,260,959 (GRCm39) D289G probably damaging Het
Gpr45 T C 1: 43,072,176 (GRCm39) L273P probably damaging Het
Hkdc1 T C 10: 62,247,486 (GRCm39) E125G probably null Het
Il25 A G 14: 55,172,631 (GRCm39) probably null Het
Itfg1 A T 8: 86,491,036 (GRCm39) W298R probably damaging Het
Kank1 A T 19: 25,387,967 (GRCm39) K547* probably null Het
Lama5 G A 2: 179,823,023 (GRCm39) R2748* probably null Het
Lrp4 C T 2: 91,308,079 (GRCm39) T508I probably damaging Het
Map3k10 C T 7: 27,362,785 (GRCm39) V434I probably damaging Het
Map3k6 A G 4: 132,979,970 (GRCm39) M1265V probably benign Het
Mocs3 C T 2: 168,073,602 (GRCm39) P350S probably benign Het
Msh4 T A 3: 153,594,462 (GRCm39) Y113F probably damaging Het
Naip2 A C 13: 100,298,290 (GRCm39) I582S probably benign Het
Nrip1 A G 16: 76,090,904 (GRCm39) S218P probably damaging Het
Olig1 C T 16: 91,067,540 (GRCm39) S259F probably damaging Het
Or4k37 T C 2: 111,159,132 (GRCm39) Y123H probably damaging Het
Or4k41 T C 2: 111,280,133 (GRCm39) I216T probably benign Het
Osbpl9 A G 4: 108,924,129 (GRCm39) V499A probably damaging Het
Pafah2 T C 4: 134,149,802 (GRCm39) V371A probably benign Het
Pkp1 T A 1: 135,803,421 (GRCm39) M712L probably benign Het
Pkp1 T C 1: 135,814,590 (GRCm39) S244G probably benign Het
Ppp1r3a T C 6: 14,718,959 (GRCm39) T652A probably benign Het
Rab21 A T 10: 115,134,795 (GRCm39) V108E probably damaging Het
Rab5b C T 10: 128,518,772 (GRCm39) R120Q probably benign Het
Scd2 G A 19: 44,289,685 (GRCm39) V227I probably benign Het
Sema5b T A 16: 35,448,470 (GRCm39) V82E probably damaging Het
Sema6a G A 18: 47,423,112 (GRCm39) probably null Het
Slc13a2 A T 11: 78,295,626 (GRCm39) L80* probably null Het
Slc1a5 C T 7: 16,516,103 (GRCm39) P93L probably damaging Het
Slc35b2 T C 17: 45,877,389 (GRCm39) V172A probably benign Het
Slfn8 A G 11: 82,907,958 (GRCm39) L195P probably damaging Het
Smox G A 2: 131,364,078 (GRCm39) S320N probably damaging Het
Sptan1 T C 2: 29,883,927 (GRCm39) V589A probably benign Het
Stim2 G A 5: 54,267,482 (GRCm39) probably null Het
V1ra8 A G 6: 90,179,944 (GRCm39) D49G probably damaging Het
Vmn1r233 A T 17: 21,214,869 (GRCm39) V27D possibly damaging Het
Vmn2r98 A T 17: 19,286,089 (GRCm39) K196* probably null Het
Wdr77 T C 3: 105,869,382 (GRCm39) probably null Het
Other mutations in Chrnb1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00585:Chrnb1 APN 11 69,684,742 (GRCm39) missense probably damaging 1.00
IGL01924:Chrnb1 APN 11 69,685,845 (GRCm39) unclassified probably benign
IGL01983:Chrnb1 APN 11 69,686,555 (GRCm39) missense probably benign 0.27
IGL02100:Chrnb1 APN 11 69,684,281 (GRCm39) unclassified probably benign
IGL02507:Chrnb1 APN 11 69,675,916 (GRCm39) missense probably damaging 1.00
IGL02814:Chrnb1 APN 11 69,686,506 (GRCm39) missense probably damaging 1.00
IGL02858:Chrnb1 APN 11 69,675,935 (GRCm39) missense possibly damaging 0.58
R1728:Chrnb1 UTSW 11 69,676,588 (GRCm39) missense probably damaging 1.00
R1913:Chrnb1 UTSW 11 69,684,410 (GRCm39) missense possibly damaging 0.95
R1930:Chrnb1 UTSW 11 69,683,563 (GRCm39) missense possibly damaging 0.81
R2233:Chrnb1 UTSW 11 69,686,428 (GRCm39) missense probably damaging 0.98
R2234:Chrnb1 UTSW 11 69,686,428 (GRCm39) missense probably damaging 0.98
R3971:Chrnb1 UTSW 11 69,683,742 (GRCm39) unclassified probably benign
R4183:Chrnb1 UTSW 11 69,677,922 (GRCm39) missense possibly damaging 0.50
R4425:Chrnb1 UTSW 11 69,677,773 (GRCm39) missense probably damaging 1.00
R4822:Chrnb1 UTSW 11 69,686,501 (GRCm39) missense possibly damaging 0.55
R4983:Chrnb1 UTSW 11 69,684,804 (GRCm39) missense probably damaging 1.00
R5000:Chrnb1 UTSW 11 69,677,858 (GRCm39) missense probably damaging 0.96
R5378:Chrnb1 UTSW 11 69,676,007 (GRCm39) missense probably benign 0.00
R5396:Chrnb1 UTSW 11 69,684,979 (GRCm39) missense probably damaging 1.00
R5540:Chrnb1 UTSW 11 69,686,476 (GRCm39) missense probably benign 0.30
R5574:Chrnb1 UTSW 11 69,684,509 (GRCm39) unclassified probably benign
R5890:Chrnb1 UTSW 11 69,683,555 (GRCm39) missense possibly damaging 0.94
R5973:Chrnb1 UTSW 11 69,686,671 (GRCm39) unclassified probably benign
R6056:Chrnb1 UTSW 11 69,677,765 (GRCm39) missense probably damaging 1.00
R7466:Chrnb1 UTSW 11 69,675,476 (GRCm39) missense probably damaging 1.00
R7633:Chrnb1 UTSW 11 69,683,699 (GRCm39) missense probably damaging 1.00
R7664:Chrnb1 UTSW 11 69,677,850 (GRCm39) missense possibly damaging 0.80
R8266:Chrnb1 UTSW 11 69,675,447 (GRCm39) makesense probably null
R9124:Chrnb1 UTSW 11 69,685,057 (GRCm39) missense probably benign 0.31
Z1177:Chrnb1 UTSW 11 69,685,015 (GRCm39) missense possibly damaging 0.95
Predicted Primers PCR Primer
(F):5'- CTCAGCCTCCAAGTCTCACTTGAAC -3'
(R):5'- ATTTCCTCAATCAGCTACATGGCCC -3'

Sequencing Primer
(F):5'- GATTCTTACAAGCGCCAAGC -3'
(R):5'- TCCAAAGAGTCTGGAGCCTG -3'
Posted On 2013-04-24