Incidental Mutation 'R0126:Abca2'
ID 21343
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 038411-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R0126 (G1)
Quality Score 225
Status Validated (trace)
Chromosome 2
Chromosomal Location 25318715-25338552 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 25333742 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Proline at position 1730 (L1730P)
Ref Sequence ENSEMBL: ENSMUSP00000099983 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000102919]
AlphaFold no structure available at present
Predicted Effect possibly damaging
Transcript: ENSMUST00000102919
AA Change: L1730P

PolyPhen 2 Score 0.880 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000099983
Gene: ENSMUSG00000026944
AA Change: L1730P

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 0.1795 question?
Coding Region Coverage
  • 1x: 98.8%
  • 3x: 97.6%
  • 10x: 93.2%
  • 20x: 81.8%
Validation Efficiency 98% (102/104)
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: 85 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adam9 T C 8: 25,460,753 (GRCm39) N577S probably damaging Het
Add1 T C 5: 34,770,923 (GRCm39) Y316H probably benign Het
Agpat3 T C 10: 78,113,890 (GRCm39) D266G probably null Het
Aldh3a2 C A 11: 61,115,384 (GRCm39) Q524H probably benign Het
Alox12b A C 11: 69,058,297 (GRCm39) S550R probably benign Het
Ano4 T A 10: 88,788,154 (GRCm39) I753F possibly damaging Het
AW011738 T A 4: 156,288,104 (GRCm39) probably benign Het
B4galt3 C T 1: 171,103,738 (GRCm39) T103M probably damaging Het
Cabs1 C T 5: 88,128,054 (GRCm39) T235I probably damaging Het
Casq2 A G 3: 102,040,715 (GRCm39) H272R probably damaging Het
Ccdc180 T C 4: 45,912,866 (GRCm39) probably null Het
Cdh12 A T 15: 21,584,031 (GRCm39) M624L probably benign Het
Cdh5 A C 8: 104,867,314 (GRCm39) probably null Het
Col7a1 A G 9: 108,798,651 (GRCm39) probably benign Het
Cpne2 A T 8: 95,281,561 (GRCm39) I199F probably damaging Het
Crebbp A T 16: 3,901,927 (GRCm39) F2399L possibly damaging Het
Defb36 T C 2: 152,454,499 (GRCm39) C53R probably damaging Het
Degs1 T C 1: 182,107,257 (GRCm39) M1V probably null Het
Disp2 T A 2: 118,620,819 (GRCm39) F517Y probably damaging Het
Dnah5 A G 15: 28,246,465 (GRCm39) D601G probably benign Het
Dnpep G A 1: 75,289,182 (GRCm39) Q310* probably null Het
Dsg1a A G 18: 20,473,935 (GRCm39) T1003A probably benign Het
Fbrsl1 C G 5: 110,543,906 (GRCm39) probably benign Het
Foxh1 A T 15: 76,553,454 (GRCm39) L116H probably damaging Het
Gigyf2 G A 1: 87,339,597 (GRCm39) probably benign Het
Golm2 T C 2: 121,736,565 (GRCm39) probably benign Het
Gp1ba A T 11: 70,531,859 (GRCm39) probably benign Het
Gucy1b1 A G 3: 81,945,218 (GRCm39) probably benign Het
Gucy2g T G 19: 55,229,598 (GRCm39) D24A probably benign Het
Hirip3 A G 7: 126,462,614 (GRCm39) K190R probably damaging Het
Hmmr T C 11: 40,596,781 (GRCm39) N717D probably damaging Het
Il12b A T 11: 44,301,045 (GRCm39) Y187F probably damaging Het
Iqgap1 A G 7: 80,388,070 (GRCm39) I859T probably benign Het
Jmjd1c T C 10: 67,055,105 (GRCm39) L175P probably damaging Het
Klc2 T C 19: 5,162,774 (GRCm39) M242V possibly damaging Het
Klf3 T C 5: 64,979,446 (GRCm39) M96T probably benign Het
Lrrc66 G T 5: 73,764,431 (GRCm39) H871N probably benign Het
Ltn1 A T 16: 87,222,528 (GRCm39) D168E probably benign Het
Mak T C 13: 41,186,072 (GRCm39) D532G probably damaging Het
Marchf6 A G 15: 31,462,151 (GRCm39) M859T probably benign Het
Meak7 T C 8: 120,489,089 (GRCm39) D398G possibly damaging Het
Mlxipl C A 5: 135,161,177 (GRCm39) N365K probably damaging Het
Mplkip T C 13: 17,870,337 (GRCm39) S90P possibly damaging Het
Myo5c A T 9: 75,176,807 (GRCm39) H584L probably benign Het
Myt1l A G 12: 29,901,719 (GRCm39) T228A possibly damaging Het
Nxpe3 A T 16: 55,686,592 (GRCm39) Y139N possibly damaging Het
Or2z8 C T 8: 72,812,244 (GRCm39) T240M probably damaging Het
Or51f2 A G 7: 102,526,347 (GRCm39) T7A probably benign Het
Or8k40 T A 2: 86,584,981 (GRCm39) I34L probably damaging Het
Pak6 C T 2: 118,520,813 (GRCm39) S268F possibly damaging Het
Parp10 G A 15: 76,127,266 (GRCm39) A57V probably damaging Het
Pik3r3 T A 4: 116,113,465 (GRCm39) D69E probably damaging Het
Polr2a T G 11: 69,638,251 (GRCm39) K105T probably damaging Het
Prdm16 A T 4: 154,413,295 (GRCm39) probably benign Het
Prepl G A 17: 85,390,670 (GRCm39) T96I probably benign Het
Ret C T 6: 118,142,956 (GRCm39) probably benign Het
Rgl3 A T 9: 21,887,108 (GRCm39) D541E probably benign Het
Rpa1 A C 11: 75,209,355 (GRCm39) Y143D probably benign Het
Rps16 T A 7: 28,050,508 (GRCm39) L47Q probably damaging Het
Sbno2 A T 10: 79,904,687 (GRCm39) probably null Het
Scube1 A T 15: 83,505,264 (GRCm39) N385K probably damaging Het
Shank2 A G 7: 143,585,092 (GRCm39) E31G probably damaging Het
Slc38a9 G T 13: 112,865,791 (GRCm39) C496F possibly damaging Het
Snap47 A G 11: 59,328,813 (GRCm39) V163A probably damaging Het
Sntg2 T C 12: 30,251,260 (GRCm39) probably benign Het
Sp7 C A 15: 102,266,895 (GRCm39) V322F probably damaging Het
Spic T C 10: 88,511,924 (GRCm39) K111E probably damaging Het
Sqor T C 2: 122,639,947 (GRCm39) probably benign Het
St6galnac1 T A 11: 116,657,410 (GRCm39) M385L probably benign Het
Synpo2 A T 3: 122,873,511 (GRCm39) S1211T possibly damaging Het
Sytl2 T A 7: 90,045,797 (GRCm39) V638E probably damaging Het
Taar1 T A 10: 23,796,445 (GRCm39) S48T probably benign Het
Tbx18 T A 9: 87,611,706 (GRCm39) D108V possibly damaging Het
Tdh C T 14: 63,735,042 (GRCm39) probably benign Het
Tlr9 T A 9: 106,102,881 (GRCm39) L724Q probably benign Het
Tmem270 T A 5: 134,931,642 (GRCm39) Y100F probably benign Het
Trim65 G C 11: 116,015,430 (GRCm39) probably benign Het
Trrap A T 5: 144,742,560 (GRCm39) K1393* probably null Het
Ttc13 A G 8: 125,410,030 (GRCm39) V523A probably damaging Het
Utrn T A 10: 12,587,219 (GRCm39) D939V probably benign Het
Vmn1r46 G T 6: 89,953,935 (GRCm39) M261I probably benign Het
Vwa5a A G 9: 38,649,103 (GRCm39) probably null Het
Zfp108 A T 7: 23,960,149 (GRCm39) T247S probably benign Het
Zfp366 A T 13: 99,365,129 (GRCm39) I97F probably benign Het
Zfp986 C T 4: 145,625,513 (GRCm39) R58C probably benign 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
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
R0437:Abca2 UTSW 2 25,332,857 (GRCm39) missense probably damaging 0.99
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'- TTGGCCTGAAGTGGCTGTGAAC -3'
(R):5'- TAGGTCCATGCAACCATTCGGCTC -3'

Sequencing Primer
(F):5'- CAGATATGGAGCCATCACCTTTG -3'
(R):5'- TTTGCACGCAGAATGGCA -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 2013-04-11
Science Writer Anne Murray