Incidental Mutation 'R0437:Abca2'
ID 39040
Institutional Source Beutler Lab
Gene Symbol Abca2
Ensembl Gene ENSMUSG00000026944
Gene Name ATP-binding cassette, sub-family A member 2
Synonyms Abc2, D2H0S1474E
MMRRC Submission 038638-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R0437 (G1)
Quality Score 225
Status Validated
Chromosome 2
Chromosomal Location 25318715-25338552 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 25332857 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Proline at position 1519 (S1519P)
Ref Sequence ENSEMBL: ENSMUSP00000099983 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000102919]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000102919
AA Change: S1519P

PolyPhen 2 Score 0.988 (Sensitivity: 0.73; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000099983
Gene: ENSMUSG00000026944
AA Change: S1519P

DomainStartEndE-ValueType
transmembrane domain 21 40 N/A INTRINSIC
low complexity region 119 130 N/A INTRINSIC
low complexity region 220 237 N/A INTRINSIC
coiled coil region 271 296 N/A INTRINSIC
low complexity region 309 346 N/A INTRINSIC
Pfam:ABC2_membrane_3 493 911 9.7e-18 PFAM
AAA 1015 1197 9.22e-7 SMART
low complexity region 1364 1376 N/A INTRINSIC
low complexity region 1589 1607 N/A INTRINSIC
Pfam:ABC2_membrane_3 1696 2008 2.3e-44 PFAM
AAA 2079 2264 1.12e-5 SMART
low complexity region 2375 2394 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000125520
Predicted Effect noncoding transcript
Transcript: ENSMUST00000141065
Predicted Effect noncoding transcript
Transcript: ENSMUST00000143075
Predicted Effect noncoding transcript
Transcript: ENSMUST00000144560
Predicted Effect noncoding transcript
Transcript: ENSMUST00000149385
Predicted Effect noncoding transcript
Transcript: ENSMUST00000150550
Predicted Effect noncoding transcript
Transcript: ENSMUST00000199405
Meta Mutation Damage Score 0.2023 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.6%
  • 10x: 97.0%
  • 20x: 94.8%
Validation Efficiency 100% (104/104)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intracellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the ABC1 subfamily. Members of the ABC1 subfamily comprise the only major ABC subfamily found exclusively in multicellular eukaryotes. This protein is highly expressed in brain tissue and may play a role in macrophage lipid metabolism and neural development. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
PHENOTYPE: Null mice show tremors, hyperactivity, abnormal coordination, and alterations in CNS myelin sheath ultrastructure, [provided by MGI curators]
Allele List at MGI

All alleles(4) : Targeted(4)

Other mutations in this stock
Total: 99 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4833420G17Rik G A 13: 119,606,631 (GRCm39) R291K probably benign Het
Abcb11 G A 2: 69,087,639 (GRCm39) A1042V probably damaging Het
Abcc10 A T 17: 46,623,845 (GRCm39) probably null Het
Abcc10 G T 17: 46,623,846 (GRCm39) probably benign Het
Alkbh3 A C 2: 93,811,914 (GRCm39) L240V probably damaging Het
Apol10b T C 15: 77,469,608 (GRCm39) S190G probably benign Het
Atp1a3 C A 7: 24,698,392 (GRCm39) C135F probably benign Het
Atp4a C G 7: 30,419,526 (GRCm39) R659G probably benign Het
Bicra A G 7: 15,722,687 (GRCm39) S277P possibly damaging Het
Bltp1 A T 3: 37,043,953 (GRCm39) H2820L possibly damaging Het
Bmp8a T C 4: 123,210,690 (GRCm39) E275G probably benign Het
Ccdc102a T C 8: 95,640,054 (GRCm39) E80G probably damaging Het
Cdh23 T C 10: 60,246,576 (GRCm39) D954G probably damaging Het
Chrm4 A G 2: 91,758,788 (GRCm39) T399A possibly damaging Het
Clcn3 A G 8: 61,387,571 (GRCm39) V199A possibly damaging Het
Crlf1 T C 8: 70,952,164 (GRCm39) probably null Het
Crx G T 7: 15,605,071 (GRCm39) S57* probably null Het
Cstpp1 A G 2: 91,252,298 (GRCm39) L21P probably damaging Het
Cyp4f16 A G 17: 32,756,072 (GRCm39) I34V possibly damaging Het
Daxx T C 17: 34,132,598 (GRCm39) V576A probably benign Het
Ddx17 C T 15: 79,421,672 (GRCm39) R351H probably damaging Het
Dhx38 T C 8: 110,285,261 (GRCm39) probably benign Het
Dnd1 T C 18: 36,897,552 (GRCm39) probably benign Het
Dync1i2 A T 2: 71,058,169 (GRCm39) probably null Het
E2f6 T C 12: 16,866,446 (GRCm39) S52P probably benign Het
Epb41l4a A G 18: 34,013,326 (GRCm39) F116S probably damaging Het
Ext1 T C 15: 52,969,502 (GRCm39) N362S probably damaging Het
Fam227a C A 15: 79,528,189 (GRCm39) K79N possibly damaging Het
Fam228a T A 12: 4,782,759 (GRCm39) L111F probably damaging Het
Fat2 T C 11: 55,173,625 (GRCm39) T2363A probably benign Het
Fat3 A T 9: 15,908,228 (GRCm39) N2591K probably damaging Het
Frem2 A G 3: 53,560,436 (GRCm39) M1357T possibly damaging Het
Frmd4b A T 6: 97,400,424 (GRCm39) V29D probably damaging Het
G930045G22Rik A G 6: 50,823,918 (GRCm39) noncoding transcript Het
Galnt3 A G 2: 65,937,573 (GRCm39) S46P possibly damaging Het
Gmeb2 A G 2: 180,895,766 (GRCm39) V468A possibly damaging Het
Herc2 C T 7: 55,869,563 (GRCm39) R4271* probably null Het
Il5 C A 11: 53,614,733 (GRCm39) probably benign Het
Ints9 G A 14: 65,223,818 (GRCm39) probably benign Het
Itga10 T C 3: 96,556,453 (GRCm39) F196S probably damaging Het
Itgb3bp T C 4: 99,670,126 (GRCm39) T138A probably damaging Het
Kcnd1 G A X: 7,690,922 (GRCm39) V281M probably benign Het
Lcp2 T C 11: 34,037,229 (GRCm39) L391P probably benign Het
Lrrc66 T C 5: 73,765,030 (GRCm39) Y671C probably benign Het
Mettl23 T C 11: 116,740,120 (GRCm39) V197A possibly damaging Het
Mmp15 C A 8: 96,097,400 (GRCm39) D456E probably benign Het
Mospd4 T C 18: 46,598,848 (GRCm39) noncoding transcript Het
Mov10l1 C A 15: 88,889,515 (GRCm39) H484N probably damaging Het
Mphosph9 T C 5: 124,453,631 (GRCm39) Q197R probably benign Het
Ms4a1 T A 19: 11,233,933 (GRCm39) probably null Het
Mybbp1a T C 11: 72,339,674 (GRCm39) V919A possibly damaging Het
Mycbpap A T 11: 94,404,338 (GRCm39) probably benign Het
Naip6 G A 13: 100,433,432 (GRCm39) S1135F possibly damaging Het
Ndufc2 T A 7: 97,049,544 (GRCm39) M50K probably benign Het
Npr2 T C 4: 43,648,082 (GRCm39) V842A probably damaging Het
Ntsr2 G T 12: 16,703,696 (GRCm39) G66W probably damaging Het
Obscn T C 11: 58,885,914 (GRCm39) probably benign Het
Optn C T 2: 5,028,926 (GRCm39) G526R probably damaging Het
Or4c11 T A 2: 88,695,229 (GRCm39) N93K probably benign Het
Or4c114 T A 2: 88,904,956 (GRCm39) I160F probably benign Het
Or6c33 T C 10: 129,853,965 (GRCm39) V245A probably damaging Het
Or6k14 G A 1: 173,927,965 (GRCm39) G314R probably benign Het
Otud4 T A 8: 80,396,626 (GRCm39) H628Q probably benign Het
Padi6 T C 4: 140,456,240 (GRCm39) T585A probably benign Het
Pex16 G T 2: 92,205,937 (GRCm39) R10L probably damaging Het
Pitpnm2 A G 5: 124,269,152 (GRCm39) probably benign Het
Pom121l2 A G 13: 22,167,375 (GRCm39) T549A possibly damaging Het
Prdm15 A T 16: 97,613,759 (GRCm39) M470K probably benign Het
Prkag2 T A 5: 25,233,503 (GRCm39) D49V possibly damaging Het
Prl3c1 A G 13: 27,383,447 (GRCm39) M38V probably benign Het
Prpf18 T A 2: 4,648,572 (GRCm39) I85F possibly damaging Het
Psg27 A G 7: 18,294,636 (GRCm39) probably benign Het
Relt A G 7: 100,497,991 (GRCm39) probably benign Het
Rskr T C 11: 78,182,362 (GRCm39) L57P probably benign Het
Serpina3b A T 12: 104,096,929 (GRCm39) N70I probably damaging Het
Slc19a3 T C 1: 83,000,286 (GRCm39) S244G probably benign Het
Slc39a5 T C 10: 128,235,716 (GRCm39) T81A possibly damaging Het
Slc7a2 G A 8: 41,357,563 (GRCm39) G277D probably damaging Het
Slc9c1 C T 16: 45,420,250 (GRCm39) probably benign Het
Slx1b A G 7: 126,291,753 (GRCm39) F104L probably benign Het
Smg6 G A 11: 74,820,527 (GRCm39) S266N probably damaging Het
Spata9 T C 13: 76,146,614 (GRCm39) V162A possibly damaging Het
Szrd1 T C 4: 140,846,055 (GRCm39) I47V probably benign Het
Tha1 G T 11: 117,759,401 (GRCm39) L363M probably benign Het
Tmc6 G A 11: 117,669,087 (GRCm39) T89I possibly damaging Het
Tmem132d C T 5: 127,866,849 (GRCm39) G684R probably damaging Het
Trim55 G A 3: 19,725,142 (GRCm39) G220S probably benign Het
Ttn A G 2: 76,600,874 (GRCm39) L18836P probably damaging Het
Ubn1 G T 16: 4,890,048 (GRCm39) probably benign Het
Ush2a T G 1: 188,643,228 (GRCm39) W4197G probably benign Het
Vmn1r189 A T 13: 22,286,231 (GRCm39) V202E probably damaging Het
Vmn1r209 T C 13: 22,990,526 (GRCm39) I55V probably benign Het
Vmn2r86 A T 10: 130,282,412 (GRCm39) C735S probably damaging Het
Vwf A T 6: 125,543,281 (GRCm39) D174V probably damaging Het
Zfp438 T C 18: 5,214,910 (GRCm39) N16S probably damaging Het
Zfp444 C T 7: 6,192,408 (GRCm39) T142I probably benign Het
Zfp804a A G 2: 81,884,135 (GRCm39) M1V probably null Het
Zfp936 T G 7: 42,838,734 (GRCm39) I67S probably benign Het
Zfp948 A T 17: 21,807,260 (GRCm39) N151Y unknown Het
Other mutations in Abca2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00093:Abca2 APN 2 25,335,975 (GRCm39) splice site probably null
IGL01102:Abca2 APN 2 25,323,968 (GRCm39) splice site probably benign
IGL01322:Abca2 APN 2 25,336,794 (GRCm39) splice site probably null
IGL01402:Abca2 APN 2 25,332,015 (GRCm39) missense probably damaging 1.00
IGL01419:Abca2 APN 2 25,327,526 (GRCm39) missense probably damaging 1.00
IGL01490:Abca2 APN 2 25,336,023 (GRCm39) missense probably damaging 1.00
IGL01633:Abca2 APN 2 25,334,406 (GRCm39) missense possibly damaging 0.66
IGL01661:Abca2 APN 2 25,333,007 (GRCm39) missense probably benign 0.01
IGL01804:Abca2 APN 2 25,336,637 (GRCm39) missense probably damaging 1.00
IGL01933:Abca2 APN 2 25,334,123 (GRCm39) missense probably damaging 1.00
IGL01941:Abca2 APN 2 25,333,107 (GRCm39) missense probably benign 0.02
IGL02158:Abca2 APN 2 25,337,891 (GRCm39) utr 3 prime probably benign
IGL02173:Abca2 APN 2 25,331,909 (GRCm39) missense probably benign 0.00
IGL02419:Abca2 APN 2 25,336,849 (GRCm39) missense probably benign
IGL02532:Abca2 APN 2 25,325,148 (GRCm39) missense probably benign 0.03
IGL02572:Abca2 APN 2 25,323,329 (GRCm39) missense possibly damaging 0.95
Abseiling UTSW 2 25,337,015 (GRCm39) missense possibly damaging 0.65
R0126:Abca2 UTSW 2 25,333,742 (GRCm39) missense possibly damaging 0.88
R0140:Abca2 UTSW 2 25,328,097 (GRCm39) critical splice donor site probably null
R0372:Abca2 UTSW 2 25,327,365 (GRCm39) missense probably damaging 1.00
R0505:Abca2 UTSW 2 25,324,906 (GRCm39) missense probably benign 0.22
R0570:Abca2 UTSW 2 25,337,417 (GRCm39) splice site probably null
R1037:Abca2 UTSW 2 25,328,240 (GRCm39) splice site probably benign
R1283:Abca2 UTSW 2 25,336,701 (GRCm39) missense probably damaging 1.00
R1448:Abca2 UTSW 2 25,330,542 (GRCm39) missense possibly damaging 0.73
R1464:Abca2 UTSW 2 25,337,846 (GRCm39) splice site probably benign
R1468:Abca2 UTSW 2 25,331,308 (GRCm39) missense probably damaging 0.99
R1468:Abca2 UTSW 2 25,331,308 (GRCm39) missense probably damaging 0.99
R1480:Abca2 UTSW 2 25,323,409 (GRCm39) missense possibly damaging 0.60
R1545:Abca2 UTSW 2 25,332,370 (GRCm39) missense probably benign 0.17
R1562:Abca2 UTSW 2 25,336,331 (GRCm39) missense probably benign 0.43
R1569:Abca2 UTSW 2 25,329,197 (GRCm39) missense probably benign 0.45
R1586:Abca2 UTSW 2 25,337,228 (GRCm39) missense probably damaging 0.98
R1635:Abca2 UTSW 2 25,334,868 (GRCm39) missense probably benign 0.03
R1699:Abca2 UTSW 2 25,337,363 (GRCm39) missense possibly damaging 0.80
R1754:Abca2 UTSW 2 25,324,345 (GRCm39) missense probably benign 0.01
R1760:Abca2 UTSW 2 25,333,055 (GRCm39) missense probably benign 0.00
R2040:Abca2 UTSW 2 25,333,817 (GRCm39) missense probably damaging 1.00
R2067:Abca2 UTSW 2 25,327,517 (GRCm39) missense possibly damaging 0.88
R2111:Abca2 UTSW 2 25,327,517 (GRCm39) missense possibly damaging 0.88
R2248:Abca2 UTSW 2 25,323,476 (GRCm39) splice site probably benign
R2323:Abca2 UTSW 2 25,335,187 (GRCm39) missense probably benign 0.00
R2418:Abca2 UTSW 2 25,328,001 (GRCm39) missense probably benign 0.22
R2419:Abca2 UTSW 2 25,328,001 (GRCm39) missense probably benign 0.22
R3816:Abca2 UTSW 2 25,336,083 (GRCm39) missense probably damaging 1.00
R4180:Abca2 UTSW 2 25,331,590 (GRCm39) missense possibly damaging 0.58
R4431:Abca2 UTSW 2 25,332,864 (GRCm39) missense probably benign
R4468:Abca2 UTSW 2 25,334,914 (GRCm39) missense probably damaging 1.00
R4704:Abca2 UTSW 2 25,333,424 (GRCm39) missense probably damaging 0.99
R4839:Abca2 UTSW 2 25,330,921 (GRCm39) missense probably damaging 0.99
R4933:Abca2 UTSW 2 25,334,839 (GRCm39) missense probably benign 0.25
R4970:Abca2 UTSW 2 25,328,383 (GRCm39) missense probably damaging 1.00
R4971:Abca2 UTSW 2 25,332,006 (GRCm39) missense probably damaging 0.97
R5112:Abca2 UTSW 2 25,328,383 (GRCm39) missense probably damaging 1.00
R5327:Abca2 UTSW 2 25,335,686 (GRCm39) missense probably damaging 1.00
R5378:Abca2 UTSW 2 25,336,080 (GRCm39) missense probably damaging 1.00
R5648:Abca2 UTSW 2 25,326,510 (GRCm39) critical splice donor site probably null
R5725:Abca2 UTSW 2 25,329,412 (GRCm39) missense probably damaging 0.98
R5825:Abca2 UTSW 2 25,326,748 (GRCm39) missense probably benign 0.36
R5837:Abca2 UTSW 2 25,323,371 (GRCm39) missense probably benign 0.34
R5840:Abca2 UTSW 2 25,323,371 (GRCm39) missense probably benign 0.34
R5851:Abca2 UTSW 2 25,332,322 (GRCm39) missense possibly damaging 0.58
R6262:Abca2 UTSW 2 25,334,922 (GRCm39) missense possibly damaging 0.56
R6344:Abca2 UTSW 2 25,327,706 (GRCm39) missense probably damaging 1.00
R6547:Abca2 UTSW 2 25,323,350 (GRCm39) missense possibly damaging 0.80
R6640:Abca2 UTSW 2 25,337,015 (GRCm39) missense possibly damaging 0.65
R6980:Abca2 UTSW 2 25,330,878 (GRCm39) missense possibly damaging 0.89
R6981:Abca2 UTSW 2 25,334,151 (GRCm39) missense probably damaging 1.00
R7070:Abca2 UTSW 2 25,333,007 (GRCm39) missense probably benign 0.06
R7080:Abca2 UTSW 2 25,336,116 (GRCm39) missense probably benign 0.37
R7187:Abca2 UTSW 2 25,327,733 (GRCm39) missense probably damaging 1.00
R7195:Abca2 UTSW 2 25,332,088 (GRCm39) missense probably benign 0.00
R7297:Abca2 UTSW 2 25,332,088 (GRCm39) missense probably benign 0.00
R7487:Abca2 UTSW 2 25,327,915 (GRCm39) missense probably benign 0.02
R7561:Abca2 UTSW 2 25,336,707 (GRCm39) missense probably damaging 0.98
R7766:Abca2 UTSW 2 25,331,540 (GRCm39) missense probably benign 0.04
R8084:Abca2 UTSW 2 25,323,979 (GRCm39) missense probably benign 0.32
R8150:Abca2 UTSW 2 25,337,393 (GRCm39) missense probably damaging 0.99
R8684:Abca2 UTSW 2 25,336,508 (GRCm39) missense possibly damaging 0.89
R8753:Abca2 UTSW 2 25,332,706 (GRCm39) missense probably damaging 0.99
R8970:Abca2 UTSW 2 25,335,728 (GRCm39) missense probably benign 0.12
R9057:Abca2 UTSW 2 25,331,584 (GRCm39) missense probably benign 0.05
R9378:Abca2 UTSW 2 25,329,094 (GRCm39) missense probably benign 0.02
R9502:Abca2 UTSW 2 25,326,895 (GRCm39) nonsense probably null
R9688:Abca2 UTSW 2 25,324,459 (GRCm39) missense possibly damaging 0.94
R9770:Abca2 UTSW 2 25,328,979 (GRCm39) critical splice donor site probably null
RF063:Abca2 UTSW 2 25,337,409 (GRCm39) missense probably damaging 1.00
RF064:Abca2 UTSW 2 25,337,409 (GRCm39) missense probably damaging 1.00
Z1176:Abca2 UTSW 2 25,334,122 (GRCm39) missense probably benign 0.39
Predicted Primers PCR Primer
(F):5'- CAAGCTCAGCCCTCTCTGTGTTAG -3'
(R):5'- ACATACTGTCGAAGAACCGTGCC -3'

Sequencing Primer
(F):5'- GGCTGGCATCAGATAACTGC -3'
(R):5'- AAGAACCGTGCCGCCAG -3'
Protein Function and Prediction

Abca2 encodes ABCA2, a member of the A subfamily of ATP-binding cassette (ABC) transporters that function to translocate molecules across cellular membranes. ABCA2 functions in trafficking low-density lipoprotein (LDL)-derived free cholesterol (1). The ABCA2 protein has two transmembrane domains and two ABCs, the ABC consensus sequence is comprised of Walker A and Walker B motifs separated by 90-120 amino acids (2). Reverse transcriptase-PCR ELISA detected ABCA2 in all human adult and fetal tissues examined (lung, kidney, heart, liver, ovary, skeletal muscle, brain, pancreas, testis, spleen and liver); highest expression was in the brain and spinal cord (3). Additional studies determined that ABCA2 is most abundant in the central nervous system, ovary, and macrophages (4). ABCA2 colocalizes with the lysosomal/endosomal marker LAMP1 (4). ABCA2 expression has been linked with gene cluster patterns consistent with Alzheimer’s disease.

Abca2tm1Kdt/tm1Kdt; MGI: 3697467

involves: 129/Sv

Homozygotes exhibit decreased body weight compared to controls as well as increased fear-related responses, increased startle reflex to sound, tremors, impaired ability to counterbalance, hyperactivity, and increased rearing and climbing behavior (5). Homozygotes also have abnormal myeline sheath morphology: average myelin sheath thickness in the spinal cord is increased and there is reduced periodicity and compaction of myelin (5).

Abca2tm1Nina/tm1Nina; MGI: 3719855

involves: 129X1/SvJ * C57BL/6

Homozygotes exhibit increased morbidity/mortality when moved onto wet sawdust, tremors, impaired balance, abnormal sphingomyelin in their brain after growth stage, and increased levels of ganglioside GM1, cerebrosides and silfatide levels (6). In addition, homozygotes have decreased body weight (6). Female homozygotes have reduced female fertility (6).

References
Posted On 2013-05-23
Science Writer Anne Murray