Incidental Mutation 'A5278:Slc4a1'
ID 65
Institutional Source Beutler Lab
Gene Symbol Slc4a1
Ensembl Gene ENSMUSG00000006574
Gene Name solute carrier family 4 (anion exchanger), member 1
Synonyms band 3, CD233, Ae1, erythrocyte membrane protein band 3, l11Jus51, Empb3
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # A5278 of strain 453
Quality Score
Status Validated
Chromosome 11
Chromosomal Location 102239646-102256107 bp(-) (GRCm39)
Type of Mutation splice site
DNA Base Change (assembly) A to G at 102244641 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000006749 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000006749]
AlphaFold P04919
Predicted Effect probably benign
Transcript: ENSMUST00000006749
SMART Domains Protein: ENSMUSP00000006749
Gene: ENSMUSG00000006574

DomainStartEndE-ValueType
low complexity region 58 68 N/A INTRINSIC
Pfam:Band_3_cyto 100 342 1.6e-81 PFAM
Pfam:HCO3_cotransp 391 584 5.7e-85 PFAM
Pfam:HCO3_cotransp 575 857 5.6e-118 PFAM
transmembrane domain 875 892 N/A INTRINSIC
Coding Region Coverage
  • 1x: 88.2%
  • 3x: 73.8%
Validation Efficiency 87% (116/134)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene is part of the anion exchanger (AE) family and is expressed in the erythrocyte plasma membrane, where it functions as a chloride/bicarbonate exchanger involved in carbon dioxide transport from tissues to lungs. The protein comprises two domains that are structurally and functionally distinct. The N-terminal 40kDa domain is located in the cytoplasm and acts as an attachment site for the red cell skeleton by binding ankyrin. The glycosylated C-terminal membrane-associated domain contains 12-14 membrane spanning segments and carries out the stilbene disulphonate-sensitive exchange transport of anions. The cytoplasmic tail at the extreme C-terminus of the membrane domain binds carbonic anhydrase II. The encoded protein associates with the red cell membrane protein glycophorin A and this association promotes the correct folding and translocation of the exchanger. This protein is predominantly dimeric but forms tetramers in the presence of ankyrin. Many mutations in this gene are known in man, and these mutations can lead to two types of disease: destabilization of red cell membrane leading to hereditary spherocytosis, and defective kidney acid secretion leading to distal renal tubular acidosis. Other mutations that do not give rise to disease result in novel blood group antigens, which form the Diego blood group system. Southeast Asian ovalocytosis (SAO, Melanesian ovalocytosis) results from the heterozygous presence of a deletion in the encoded protein and is common in areas where Plasmodium falciparum malaria is endemic. One null mutation in this gene is known, resulting in very severe anemia and nephrocalcinosis. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygotes for null mutations exhibit retarded growth, severe spherocytosis, hemolytic anemia, lack of erythrocyte glycophorin A, mitotic defects, and high postnatal mortality. [provided by MGI curators]
Allele List at MGI

All alleles(6) : Targeted, knock-out(3) Targeted, other(1) Spontaneous(1) Chemically induced(1)

Other mutations in this stock
Total: 7 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Kat14 C A 2: 144,235,227 (GRCm39) S18* probably null Het
Kif17 T C 4: 138,015,261 (GRCm39) V278A probably benign Homo
Myo3a A G 2: 22,328,464 (GRCm39) T353A probably benign Het
Pbk T A 14: 66,051,388 (GRCm39) I142N probably damaging Het
Rab32 A G 10: 10,433,717 (GRCm39) I39T possibly damaging Het
Rhou G T 8: 124,387,730 (GRCm39) C154F probably damaging Het
Tdrd7 C T 4: 46,007,622 (GRCm39) T558M probably benign Homo
Other mutations in Slc4a1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01303:Slc4a1 APN 11 102,248,790 (GRCm39) missense probably benign 0.09
IGL01845:Slc4a1 APN 11 102,244,729 (GRCm39) missense probably benign 0.01
IGL02166:Slc4a1 APN 11 102,245,159 (GRCm39) missense probably damaging 1.00
IGL02745:Slc4a1 APN 11 102,247,093 (GRCm39) missense probably damaging 1.00
IGL02801:Slc4a1 APN 11 102,249,972 (GRCm39) critical splice acceptor site probably null
Rumor UTSW 11 102,252,048 (GRCm39) nonsense probably null
R0011:Slc4a1 UTSW 11 102,247,936 (GRCm39) missense possibly damaging 0.51
R0193:Slc4a1 UTSW 11 102,243,510 (GRCm39) missense possibly damaging 0.91
R0445:Slc4a1 UTSW 11 102,245,192 (GRCm39) missense probably benign 0.04
R0599:Slc4a1 UTSW 11 102,248,741 (GRCm39) splice site probably benign
R0635:Slc4a1 UTSW 11 102,243,498 (GRCm39) missense possibly damaging 0.78
R1496:Slc4a1 UTSW 11 102,251,997 (GRCm39) missense probably benign
R1816:Slc4a1 UTSW 11 102,242,056 (GRCm39) missense probably damaging 1.00
R1898:Slc4a1 UTSW 11 102,241,133 (GRCm39) missense probably damaging 1.00
R2361:Slc4a1 UTSW 11 102,247,656 (GRCm39) missense probably damaging 1.00
R2381:Slc4a1 UTSW 11 102,250,128 (GRCm39) missense probably benign 0.00
R3806:Slc4a1 UTSW 11 102,248,019 (GRCm39) missense probably benign 0.00
R3857:Slc4a1 UTSW 11 102,247,947 (GRCm39) missense probably benign 0.01
R3858:Slc4a1 UTSW 11 102,247,947 (GRCm39) missense probably benign 0.01
R4585:Slc4a1 UTSW 11 102,252,245 (GRCm39) utr 5 prime probably benign
R4586:Slc4a1 UTSW 11 102,252,245 (GRCm39) utr 5 prime probably benign
R4705:Slc4a1 UTSW 11 102,247,084 (GRCm39) missense possibly damaging 0.89
R4914:Slc4a1 UTSW 11 102,243,279 (GRCm39) missense probably damaging 1.00
R4915:Slc4a1 UTSW 11 102,243,279 (GRCm39) missense probably damaging 1.00
R4916:Slc4a1 UTSW 11 102,243,279 (GRCm39) missense probably damaging 1.00
R4918:Slc4a1 UTSW 11 102,243,279 (GRCm39) missense probably damaging 1.00
R5001:Slc4a1 UTSW 11 102,242,329 (GRCm39) missense probably benign 0.12
R5103:Slc4a1 UTSW 11 102,244,087 (GRCm39) missense possibly damaging 0.65
R5234:Slc4a1 UTSW 11 102,252,209 (GRCm39) missense probably benign 0.03
R5308:Slc4a1 UTSW 11 102,249,903 (GRCm39) missense probably damaging 0.98
R5315:Slc4a1 UTSW 11 102,249,080 (GRCm39) missense possibly damaging 0.77
R5478:Slc4a1 UTSW 11 102,241,140 (GRCm39) missense probably damaging 0.98
R5521:Slc4a1 UTSW 11 102,244,092 (GRCm39) missense probably benign 0.01
R5888:Slc4a1 UTSW 11 102,247,351 (GRCm39) missense probably damaging 0.98
R6011:Slc4a1 UTSW 11 102,243,357 (GRCm39) missense probably damaging 1.00
R6547:Slc4a1 UTSW 11 102,247,561 (GRCm39) missense probably damaging 0.99
R6629:Slc4a1 UTSW 11 102,252,048 (GRCm39) nonsense probably null
R6717:Slc4a1 UTSW 11 102,245,249 (GRCm39) missense probably damaging 0.99
R7051:Slc4a1 UTSW 11 102,247,084 (GRCm39) missense probably benign 0.12
R7103:Slc4a1 UTSW 11 102,244,693 (GRCm39) missense probably damaging 0.97
R7315:Slc4a1 UTSW 11 102,247,310 (GRCm39) missense probably damaging 1.00
R7331:Slc4a1 UTSW 11 102,252,245 (GRCm39) start gained probably benign
R7582:Slc4a1 UTSW 11 102,243,403 (GRCm39) missense probably damaging 0.99
R8560:Slc4a1 UTSW 11 102,244,083 (GRCm39) missense possibly damaging 0.94
R9036:Slc4a1 UTSW 11 102,243,279 (GRCm39) missense probably damaging 1.00
R9274:Slc4a1 UTSW 11 102,242,047 (GRCm39) missense probably benign 0.00
R9502:Slc4a1 UTSW 11 102,247,674 (GRCm39) missense probably damaging 0.97
R9568:Slc4a1 UTSW 11 102,247,680 (GRCm39) missense probably damaging 1.00
R9585:Slc4a1 UTSW 11 102,247,915 (GRCm39) missense probably benign 0.08
R9651:Slc4a1 UTSW 11 102,242,256 (GRCm39) missense probably damaging 1.00
RF006:Slc4a1 UTSW 11 102,247,542 (GRCm39) critical splice donor site probably null
Nature of Mutation
DNA sequencing using the SOLiD technique identified a T to C transition at position 11301 in the Genbank genomic region NC_000077 for the Slc4a1 gene on chromosome 11 (GTGAGTCCTC -> GTGAGTCCCC). The mutation is located within intron 15, nine nucleotides from exon 15, and may impair the donor splice site of intron 15. Slc4a1contains 20 exons. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).
Protein Function and Prediction
The Slc4a1 gene encodes a 929 amino acid, twelve-membrane spanning protein that is a member of the solute carrier superfamily. Solute carriers transport a wide variety of substrates.   SLC4A1 forms tetramers, which transport inorganic ions across the plasma membrane of erthrocytes. Its cytoplasmic domain provides binding sites for cytoskeletal proteins, glycolytic enzymes, and hemoglobin (Uniprot P04919). Homozygotes for null alleles of Slc4a1 exhibit retarded growth, severe spherocytosis, hemolytic anemia, lack of erythrocyte glycophorin A, mitotic defects, and high postnatal mortality.
Posted On 2009-12-03