Incidental Mutation 'R4440:Alpl'
ID 329712
Institutional Source Beutler Lab
Gene Symbol Alpl
Ensembl Gene ENSMUSG00000028766
Gene Name alkaline phosphatase, liver/bone/kidney
Synonyms TNAP, Akp-2, ALP, TNSALP, Akp2
MMRRC Submission 041705-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R4440 (G1)
Quality Score 225
Status Validated
Chromosome 4
Chromosomal Location 137469044-137523695 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to T at 137475124 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tryptophan to Arginine at position 270 (W270R)
Ref Sequence ENSEMBL: ENSMUSP00000030551 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000030551] [ENSMUST00000139951]
AlphaFold P09242
Predicted Effect probably damaging
Transcript: ENSMUST00000030551
AA Change: W270R

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000030551
Gene: ENSMUSG00000028766
AA Change: W270R

DomainStartEndE-ValueType
signal peptide 1 17 N/A INTRINSIC
alkPPc 52 491 4.69e-285 SMART
low complexity region 500 520 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000139951
SMART Domains Protein: ENSMUSP00000125041
Gene: ENSMUSG00000028766

DomainStartEndE-ValueType
signal peptide 1 17 N/A INTRINSIC
Pfam:Alk_phosphatase 51 216 5.2e-72 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000141451
Meta Mutation Damage Score 0.9694 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.2%
  • 20x: 95.2%
Validation Efficiency 94% (46/49)
MGI Phenotype FUNCTION: This gene encodes a preproprotein that is proteolytically cleaved to yield a signal peptide and a proproptein that is subsequently processed to generate the active mature peptide. The encoded protein is a membrane-bound glycosylated enzyme that catalyzes the hydrolysis of phosphate esters at alkaline pH. The mature peptide maintains the ratio of inorganic phosphate to inorganic pyrophosphate required for bone mineralization. Mice that lack this enzyme show symptoms of osteomalacia, softening of the bones. In humans, mutations in this gene are associated with hypophosphatasia, an inherited metabolic bone disease in which deficiency of this enzyme inhibits bone mineralization leading to skeletal defects. Mutations in the mouse gene mirror the symptoms of human hypophosphatasia. A pseudogene of this gene is present on chromosome X. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2015]
PHENOTYPE: Males hemizygous for a null mutation exhibit reduced body size, shortened hindlimbs and tail, osteomalacia, and markedly reduced plasma phosphate levels due to impaired kidney reabsorption. Female heterozygotes exhibit milder symptoms. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 41 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adnp G T 2: 168,026,721 (GRCm39) H191Q possibly damaging Het
Afdn T C 17: 14,071,152 (GRCm39) W782R probably damaging Het
Angpt4 G T 2: 151,786,566 (GRCm39) G508C probably damaging Het
Armc8 T A 9: 99,366,087 (GRCm39) H609L probably benign Het
Atg2a T C 19: 6,305,859 (GRCm39) probably null Het
Bicdl2 C T 17: 23,886,590 (GRCm39) A393V probably benign Het
C6 A T 15: 4,764,733 (GRCm39) K143M possibly damaging Het
Cfc1 T A 1: 34,583,183 (GRCm39) probably benign Het
Ctnna3 A G 10: 64,096,714 (GRCm39) I417M probably benign Het
Dnhd1 G A 7: 105,345,935 (GRCm39) W2307* probably null Het
Dpysl5 T C 5: 30,949,612 (GRCm39) F461L probably damaging Het
Fip1l1 T C 5: 74,697,446 (GRCm39) probably benign Het
Fpgs C T 2: 32,577,513 (GRCm39) C219Y probably damaging Het
Fsip2 A G 2: 82,821,550 (GRCm39) D5761G possibly damaging Het
Hdac4 C A 1: 91,873,717 (GRCm39) G957C probably damaging Het
Klhl8 A G 5: 104,015,433 (GRCm39) I421T probably benign Het
Kntc1 T C 5: 123,932,216 (GRCm39) C1337R probably damaging Het
Lpin3 A G 2: 160,740,565 (GRCm39) N370S probably benign Het
Man2a2 C A 7: 80,001,463 (GRCm39) R1148L probably benign Het
Mideas C T 12: 84,203,245 (GRCm39) G886S probably benign Het
Nav2 C T 7: 49,201,785 (GRCm39) T1453I possibly damaging Het
Nav2 A G 7: 49,225,011 (GRCm39) probably benign Het
Ndufaf5 T A 2: 140,012,645 (GRCm39) V5D probably benign Het
Nipbl G C 15: 8,396,142 (GRCm39) Q144E probably damaging Het
Ntrk2 G C 13: 59,208,126 (GRCm39) Q657H probably damaging Het
Or4a75 G T 2: 89,448,512 (GRCm39) T8K probably damaging Het
Or4c107 G A 2: 88,789,685 (GRCm39) E292K probably benign Het
Polr1a A G 6: 71,927,832 (GRCm39) D861G probably damaging Het
Pramel15 A T 4: 144,099,437 (GRCm39) F443I probably benign Het
Pwwp2b T C 7: 138,835,555 (GRCm39) I332T probably benign Het
Rasgrf2 T C 13: 92,131,797 (GRCm39) D620G possibly damaging Het
Slc14a2 A G 18: 78,238,962 (GRCm39) V219A probably benign Het
Slc7a2 T C 8: 41,355,686 (GRCm39) I245T probably benign Het
Smok3c T A 5: 138,062,866 (GRCm39) Y118N possibly damaging Het
Taok2 C T 7: 126,465,693 (GRCm39) R367Q possibly damaging Het
Tbl1xr1 A G 3: 22,254,752 (GRCm39) probably null Het
Tbr1 A T 2: 61,635,182 (GRCm39) D44V possibly damaging Het
Tespa1 C T 10: 130,197,826 (GRCm39) R283C probably damaging Het
Tle2 A G 10: 81,417,516 (GRCm39) E227G possibly damaging Het
Vmn1r231 T C 17: 21,110,718 (GRCm39) R66G possibly damaging Het
Xab2 T C 8: 3,666,353 (GRCm39) E185G probably benign Het
Other mutations in Alpl
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01099:Alpl APN 4 137,470,624 (GRCm39) splice site probably benign
IGL02164:Alpl APN 4 137,481,290 (GRCm39) missense probably damaging 1.00
IGL02379:Alpl APN 4 137,469,869 (GRCm39) missense probably damaging 1.00
IGL02632:Alpl APN 4 137,481,217 (GRCm39) missense probably damaging 0.98
IGL02926:Alpl APN 4 137,469,945 (GRCm39) missense probably damaging 1.00
R0492:Alpl UTSW 4 137,476,887 (GRCm39) splice site probably null
R1157:Alpl UTSW 4 137,481,331 (GRCm39) missense probably damaging 1.00
R2013:Alpl UTSW 4 137,482,458 (GRCm39) missense probably benign 0.00
R2067:Alpl UTSW 4 137,476,856 (GRCm39) unclassified probably benign
R4412:Alpl UTSW 4 137,485,939 (GRCm39) missense possibly damaging 0.84
R5275:Alpl UTSW 4 137,476,919 (GRCm39) missense probably benign 0.00
R5295:Alpl UTSW 4 137,476,919 (GRCm39) missense probably benign 0.00
R5529:Alpl UTSW 4 137,473,733 (GRCm39) missense probably damaging 0.99
R6706:Alpl UTSW 4 137,473,740 (GRCm39) missense probably benign 0.00
R7291:Alpl UTSW 4 137,480,009 (GRCm39) missense probably damaging 1.00
R7693:Alpl UTSW 4 137,471,120 (GRCm39) missense probably damaging 1.00
R7694:Alpl UTSW 4 137,471,120 (GRCm39) missense probably damaging 1.00
R8247:Alpl UTSW 4 137,473,764 (GRCm39) missense probably damaging 1.00
R8686:Alpl UTSW 4 137,471,112 (GRCm39) missense probably damaging 1.00
R8725:Alpl UTSW 4 137,475,127 (GRCm39) missense probably benign
R8727:Alpl UTSW 4 137,475,127 (GRCm39) missense probably benign
X0017:Alpl UTSW 4 137,473,778 (GRCm39) missense probably damaging 1.00
Z1176:Alpl UTSW 4 137,481,321 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- CCTTCTCCGAACTTGTTGGG -3'
(R):5'- ATCCAACAACCTCTGCATATCTGTC -3'

Sequencing Primer
(F):5'- TATGACAACTGGGGCTCATCTGC -3'
(R):5'- CTGTCATTTCTTGAGTACAGAGATGC -3'
Posted On 2015-07-21