Incidental Mutation 'R9413:Ap3b2'
ID 711900
Institutional Source Beutler Lab
Gene Symbol Ap3b2
Ensembl Gene ENSMUSG00000062444
Gene Name adaptor-related protein complex 3, beta 2 subunit
Synonyms beta3B, Naptb
MMRRC Submission
Accession Numbers
Essential gene? Probably non essential (E-score: 0.096) question?
Stock # R9413 (G1)
Quality Score 225.009
Status Validated
Chromosome 7
Chromosomal Location 81460399-81493925 bp(-) (GRCm38)
Type of Mutation missense
DNA Base Change (assembly) G to T at 81478009 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change Proline to Threonine at position 140 (P140T)
Ref Sequence ENSEMBL: ENSMUSP00000080739 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000082090] [ENSMUST00000152355]
AlphaFold Q9JME5
Predicted Effect possibly damaging
Transcript: ENSMUST00000082090
AA Change: P140T

PolyPhen 2 Score 0.454 (Sensitivity: 0.89; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000080739
Gene: ENSMUSG00000062444
AA Change: P140T

DomainStartEndE-ValueType
Pfam:Adaptin_N 34 590 8.2e-182 PFAM
low complexity region 689 782 N/A INTRINSIC
AP3B1_C 801 947 4.58e-75 SMART
Blast:B2 971 1080 2e-12 BLAST
Predicted Effect probably benign
Transcript: ENSMUST00000152355
AA Change: P140T

PolyPhen 2 Score 0.009 (Sensitivity: 0.96; Specificity: 0.77)
Meta Mutation Damage Score 0.5869 question?
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 99.1%
Validation Efficiency 97% (35/36)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Adaptor protein complex 3 (AP-3 complex) is a heterotrimeric protein complex involved in the formation of clathrin-coated synaptic vesicles. The protein encoded by this gene represents the beta subunit of the neuron-specific AP-3 complex and was first identified as the target antigen in human paraneoplastic neurologic disorders. The encoded subunit binds clathrin and is phosphorylated by a casein kinase-like protein, which mediates synaptic vesicle coat assembly. Defects in this gene are a cause of early-onset epileptic encephalopathy. [provided by RefSeq, Feb 2017]
PHENOTYPE: Disruption does not alter pigmentation, but causes hyperactivity and tonic-clonic seizures and mice homozygous for a knock-out allele were found to have significantly reduced synaptic zinc levels throughout the brain, with the largest reduction observed in the CA1 stratum oriens. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 33 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca16 A T 7: 120,527,199 T1194S probably benign Het
Akr7a5 A T 4: 139,310,748 probably benign Het
Ap3s1 T C 18: 46,754,464 probably null Het
Arrdc2 C T 8: 70,836,248 R381H probably damaging Het
Atg13 T C 2: 91,681,625 D286G probably benign Het
C1qtnf4 T C 2: 90,890,304 F307S probably damaging Het
Cdk5rap1 A T 2: 154,365,960 probably null Het
Chsy3 C T 18: 59,176,098 A141V possibly damaging Het
Creb3l1 C T 2: 91,991,886 probably null Het
D5Ertd579e A G 5: 36,614,934 S706P probably damaging Het
Ell2 A G 13: 75,769,586 D545G Het
Ephb6 T C 6: 41,614,575 L222P Het
Flnc G A 6: 29,441,485 R422Q probably benign Het
Gm6619 A T 6: 131,491,407 D167V unknown Het
Gucy2c T C 6: 136,723,773 D581G possibly damaging Het
Hectd1 G A 12: 51,746,097 R2471* probably null Het
Kif1a A T 1: 93,021,297 M1501K probably benign Het
Mycbpap A G 11: 94,501,495 V390A probably damaging Het
Olfr136 A T 17: 38,335,429 T91S possibly damaging Het
Pex3 A G 10: 13,534,710 Y236H probably damaging Het
Pglyrp3 G T 3: 92,022,799 A91S probably damaging Het
Ppp1ca T C 19: 4,194,898 S292P probably damaging Het
Prkci T C 3: 31,043,766 V455A probably damaging Het
Prrx1 A G 1: 163,312,613 V8A probably benign Het
Psd4 C T 2: 24,397,460 T468I probably benign Het
Rnf213 A G 11: 119,466,233 E4203G Het
Snrnp27 T C 6: 86,676,273 D121G possibly damaging Het
Spag6 A T 2: 18,734,218 M320L probably benign Het
Spata16 T A 3: 26,924,337 M484K possibly damaging Het
Trim69 G A 2: 122,178,602 W381* probably null Het
Tubgcp3 A C 8: 12,624,885 I745S probably damaging Het
Ubxn2b A G 4: 6,204,607 D156G probably damaging Het
Vmn2r103 A G 17: 19,811,896 N644S possibly damaging Het
Other mutations in Ap3b2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00772:Ap3b2 APN 7 81471949 missense probably damaging 0.98
IGL01695:Ap3b2 APN 7 81476939 splice site probably benign
IGL01876:Ap3b2 APN 7 81473854 splice site probably null
IGL02132:Ap3b2 APN 7 81460998 missense unknown
IGL02227:Ap3b2 APN 7 81473404 missense probably damaging 1.00
IGL02660:Ap3b2 APN 7 81465698 missense probably benign 0.13
R0045:Ap3b2 UTSW 7 81466193 missense possibly damaging 0.82
R0045:Ap3b2 UTSW 7 81466193 missense possibly damaging 0.82
R0142:Ap3b2 UTSW 7 81473080 missense probably damaging 0.96
R0317:Ap3b2 UTSW 7 81463681 splice site probably null
R0568:Ap3b2 UTSW 7 81464629 critical splice donor site probably null
R1035:Ap3b2 UTSW 7 81463911 missense unknown
R1121:Ap3b2 UTSW 7 81464195 missense unknown
R1160:Ap3b2 UTSW 7 81466169 critical splice donor site probably null
R1489:Ap3b2 UTSW 7 81463690 nonsense probably null
R1542:Ap3b2 UTSW 7 81478077 splice site probably null
R1652:Ap3b2 UTSW 7 81473399 missense probably damaging 1.00
R1741:Ap3b2 UTSW 7 81467599 missense possibly damaging 0.95
R1872:Ap3b2 UTSW 7 81464150 missense unknown
R2065:Ap3b2 UTSW 7 81463774 missense unknown
R2353:Ap3b2 UTSW 7 81473850 unclassified probably benign
R2354:Ap3b2 UTSW 7 81473850 unclassified probably benign
R2398:Ap3b2 UTSW 7 81477195 missense probably damaging 0.99
R3421:Ap3b2 UTSW 7 81473850 unclassified probably benign
R3710:Ap3b2 UTSW 7 81473850 unclassified probably benign
R3932:Ap3b2 UTSW 7 81473850 unclassified probably benign
R3933:Ap3b2 UTSW 7 81473850 unclassified probably benign
R4152:Ap3b2 UTSW 7 81478017 missense probably damaging 1.00
R4209:Ap3b2 UTSW 7 81477136 missense probably benign 0.02
R4732:Ap3b2 UTSW 7 81471932 missense probably damaging 1.00
R4733:Ap3b2 UTSW 7 81471932 missense probably damaging 1.00
R4841:Ap3b2 UTSW 7 81477930 missense probably damaging 1.00
R5207:Ap3b2 UTSW 7 81476769 missense possibly damaging 0.48
R5659:Ap3b2 UTSW 7 81476752 missense probably damaging 0.98
R6109:Ap3b2 UTSW 7 81493592 missense possibly damaging 0.55
R6223:Ap3b2 UTSW 7 81473462 nonsense probably null
R6901:Ap3b2 UTSW 7 81484912 critical splice acceptor site probably null
R6981:Ap3b2 UTSW 7 81477993 missense probably damaging 1.00
R7061:Ap3b2 UTSW 7 81461009 missense unknown
R7317:Ap3b2 UTSW 7 81461028 missense unknown
R7501:Ap3b2 UTSW 7 81473446 missense probably damaging 0.99
R7543:Ap3b2 UTSW 7 81466146 splice site probably null
R7643:Ap3b2 UTSW 7 81477072 missense probably benign 0.24
R7707:Ap3b2 UTSW 7 81476782 missense possibly damaging 0.60
R8111:Ap3b2 UTSW 7 81463782 missense unknown
R8273:Ap3b2 UTSW 7 81463242 missense unknown
R8325:Ap3b2 UTSW 7 81484489 splice site probably null
R8355:Ap3b2 UTSW 7 81473103 missense probably damaging 1.00
R8697:Ap3b2 UTSW 7 81473035 missense possibly damaging 0.91
R8716:Ap3b2 UTSW 7 81477153 missense probably benign 0.03
R8923:Ap3b2 UTSW 7 81477183 missense probably benign 0.08
R9002:Ap3b2 UTSW 7 81467444 missense probably benign 0.02
R9163:Ap3b2 UTSW 7 81463798 missense unknown
R9304:Ap3b2 UTSW 7 81463271 missense unknown
R9321:Ap3b2 UTSW 7 81464504 critical splice acceptor site probably null
R9459:Ap3b2 UTSW 7 81473903 missense probably benign 0.16
R9746:Ap3b2 UTSW 7 81476344 missense probably damaging 1.00
X0013:Ap3b2 UTSW 7 81463240 critical splice donor site probably null
X0028:Ap3b2 UTSW 7 81463764 nonsense probably null
Predicted Primers PCR Primer
(F):5'- ATTCCAGACGAGAAGCAGC -3'
(R):5'- AAGCTAGCCCTTGTCAGGAG -3'

Sequencing Primer
(F):5'- CCTGCAAAACCGTGGTAAGGTC -3'
(R):5'- CTAGCCCTTGTCAGGAGGTAGG -3'
Posted On 2022-05-16