Incidental Mutation 'R6158:Mgam'
ID 489700
Institutional Source Beutler Lab
Gene Symbol Mgam
Ensembl Gene ENSMUSG00000068587
Gene Name maltase-glucoamylase
Synonyms 6030407P20Rik
MMRRC Submission 044305-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.180) question?
Stock # R6158 (G1)
Quality Score 225.009
Status Validated
Chromosome 6
Chromosomal Location 40628831-40769123 bp(+) (GRCm38)
Type of Mutation missense
DNA Base Change (assembly) T to A at 40757714 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Lysine at position 896 (I896K)
Ref Sequence ENSEMBL: ENSMUSP00000144627 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000071535] [ENSMUST00000201148] [ENSMUST00000202779] [ENSMUST00000202966]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000071535
AA Change: I1523K

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000071466
Gene: ENSMUSG00000068587
AA Change: I1523K

DomainStartEndE-ValueType
transmembrane domain 12 34 N/A INTRINSIC
low complexity region 47 59 N/A INTRINSIC
PD 63 111 1.81e-8 SMART
Pfam:NtCtMGAM_N 124 233 6.2e-36 PFAM
Pfam:Glyco_hydro_31 323 795 3.4e-145 PFAM
PD 924 977 4.52e-9 SMART
Pfam:NtCtMGAM_N 988 1101 1.5e-30 PFAM
Blast:ANK 1141 1171 1e-7 BLAST
Pfam:Glyco_hydro_31 1189 1691 2e-139 PFAM
low complexity region 1776 1791 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000201148
AA Change: I1523K

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000143946
Gene: ENSMUSG00000068587
AA Change: I1523K

DomainStartEndE-ValueType
transmembrane domain 12 34 N/A INTRINSIC
low complexity region 47 59 N/A INTRINSIC
PD 63 111 1.81e-8 SMART
Pfam:NtCtMGAM_N 124 233 6.2e-36 PFAM
Pfam:Glyco_hydro_31 323 795 3.4e-145 PFAM
PD 924 977 4.52e-9 SMART
Pfam:NtCtMGAM_N 988 1101 1.5e-30 PFAM
Blast:ANK 1141 1171 1e-7 BLAST
Pfam:Glyco_hydro_31 1189 1691 2e-139 PFAM
low complexity region 1776 1791 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000202775
Predicted Effect probably damaging
Transcript: ENSMUST00000202779
AA Change: I896K

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000144627
Gene: ENSMUSG00000068587
AA Change: I896K

DomainStartEndE-ValueType
Pfam:Glyco_hydro_31 2 170 1.4e-53 PFAM
PD 297 350 1.4e-14 SMART
Pfam:NtCtMGAM_N 361 474 1.5e-26 PFAM
Blast:ANK 514 544 7e-8 BLAST
Pfam:Glyco_hydro_31 562 1064 2.2e-137 PFAM
low complexity region 1149 1164 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000202966
AA Change: I777K

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000144680
Gene: ENSMUSG00000068587
AA Change: I777K

DomainStartEndE-ValueType
internal_repeat_1 2 88 2.6e-19 PROSPERO
PD 178 231 1.4e-14 SMART
Pfam:NtCtMGAM_N 242 355 1.1e-26 PFAM
Blast:ANK 395 425 6e-8 BLAST
Pfam:Glyco_hydro_31 443 945 1.3e-137 PFAM
Meta Mutation Damage Score 0.4231 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.4%
  • 10x: 97.5%
  • 20x: 92.6%
Validation Efficiency 98% (65/66)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes maltase-glucoamylase, which is a brush border membrane enzyme that plays a role in the final steps of digestion of starch. The protein has two catalytic sites identical to those of sucrase-isomaltase, but the proteins are only 59% homologous. Both are members of glycosyl hydrolase family 31, which has a variety of substrate specificities. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a null allele display abnormalities in starch digestion and prandial glucose homeostasis. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 65 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2700049A03Rik T C 12: 71,170,636 V793A possibly damaging Het
2900092C05Rik A G 7: 12,512,672 T32A probably benign Het
Adprhl1 C T 8: 13,224,977 V594M possibly damaging Het
Ano3 A T 2: 110,665,875 Y845N probably damaging Het
Arhgap24 A T 5: 102,892,912 I575L probably benign Het
Aurka A C 2: 172,363,596 probably null Het
C1qtnf5 A T 9: 44,108,970 probably benign Het
Cacnb2 A G 2: 14,985,601 D454G possibly damaging Het
Ccdc58 T A 16: 36,089,929 V118D probably damaging Het
Chchd5 T C 2: 129,130,517 L87P probably damaging Het
Col7a1 G T 9: 108,964,603 R1377L unknown Het
Cpne8 A C 15: 90,571,988 S191A probably damaging Het
Dhx30 A T 9: 110,087,030 I671N probably damaging Het
Dnah12 A T 14: 26,773,685 K1423N possibly damaging Het
Dnm3 T C 1: 162,320,987 M272V probably damaging Het
Fat4 A T 3: 38,983,262 S3688C possibly damaging Het
Frmpd1 A T 4: 45,285,401 L1407F probably damaging Het
Fry T C 5: 150,454,572 S410P probably damaging Het
Gm11565 T A 11: 99,914,918 C45* probably null Het
Gngt1 A T 6: 3,994,311 R30* probably null Het
Htt T C 5: 34,907,086 I2943T possibly damaging Het
Kl T A 5: 150,988,853 M689K possibly damaging Het
Lmo7 T A 14: 101,900,137 D247E probably benign Het
Mastl G T 2: 23,132,772 N646K possibly damaging Het
Mei4 G T 9: 81,927,576 L237F probably damaging Het
Mettl27 C T 5: 134,940,576 P170S possibly damaging Het
Moxd1 T A 10: 24,284,777 C443S probably damaging Het
Myo18b A T 5: 112,874,172 N451K probably benign Het
Myo7b T C 18: 31,988,549 I768V probably benign Het
Nos1 A C 5: 117,867,574 I120L probably benign Het
Nsd1 T C 13: 55,245,621 V345A probably benign Het
Olfr1095 A G 2: 86,851,515 L61P possibly damaging Het
Olfr1205 T C 2: 88,831,146 F10L probably damaging Het
Olfr150 C T 9: 39,737,076 T87I probably benign Het
Olfr170 C A 16: 19,605,925 V248F probably damaging Het
Olfr344 A T 2: 36,569,116 T173S probably benign Het
Pdzph1 T G 17: 58,973,627 Q553H probably damaging Het
Piwil1 T A 5: 128,747,876 L546* probably null Het
Pla2g4f T C 2: 120,301,071 T724A probably benign Het
Ralgapa2 A T 2: 146,424,676 M660K possibly damaging Het
Rgsl1 T C 1: 153,804,021 D103G possibly damaging Het
Rnf186 A G 4: 138,967,254 D35G probably damaging Het
Rock2 A G 12: 16,954,918 D424G probably benign Het
Scg2 A T 1: 79,435,400 D495E probably damaging Het
Slc39a2 G A 14: 51,894,224 probably null Het
Snrnp48 T A 13: 38,210,236 Y100* probably null Het
Spaca1 A G 4: 34,029,176 M99T probably damaging Het
Specc1 T G 11: 62,118,124 F235L probably damaging Het
St13 A T 15: 81,399,601 probably null Het
Swap70 T A 7: 110,270,023 M341K probably damaging Het
Synj2 A G 17: 5,986,212 D67G probably benign Het
Tmem135 T A 7: 89,156,444 I251F probably benign Het
Tmem87a A T 2: 120,360,103 probably null Het
Tom1l2 C T 11: 60,232,927 D128N probably damaging Het
Tpx2 C A 2: 152,873,104 H82N probably benign Het
Trip12 A T 1: 84,761,012 C738S possibly damaging Het
Ttyh1 A G 7: 4,125,562 T153A probably benign Het
Utrn C T 10: 12,690,822 G1199S probably benign Het
Vmn1r8 T A 6: 57,036,289 N108K probably benign Het
Vmn2r63 T A 7: 42,933,680 D37V probably damaging Het
Vwce C T 19: 10,644,221 R206C possibly damaging Het
Wrn G T 8: 33,319,172 F265L probably damaging Het
Zfp472 T A 17: 32,978,389 C479* probably null Het
Zfp831 A T 2: 174,643,858 T109S possibly damaging Het
Znfx1 G T 2: 167,056,726 Q93K probably benign Het
Other mutations in Mgam
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01024:Mgam APN 6 40643010 missense probably benign
IGL01065:Mgam APN 6 40662710 critical splice donor site probably null
IGL01402:Mgam APN 6 40644945 missense probably benign 0.01
IGL01404:Mgam APN 6 40644945 missense probably benign 0.01
IGL01413:Mgam APN 6 40661277 missense probably damaging 1.00
IGL01546:Mgam APN 6 40654693 missense probably damaging 0.98
IGL01596:Mgam APN 6 40658270 missense probably damaging 1.00
IGL02133:Mgam APN 6 40643076 missense probably damaging 0.98
IGL02734:Mgam APN 6 40662694 missense probably damaging 1.00
BB002:Mgam UTSW 6 40759051 missense probably damaging 0.99
BB012:Mgam UTSW 6 40759051 missense probably damaging 0.99
R0012:Mgam UTSW 6 40765256 splice site probably null
R0116:Mgam UTSW 6 40658987 missense probably damaging 1.00
R0310:Mgam UTSW 6 40761035 splice site probably benign
R0452:Mgam UTSW 6 40759090 missense probably damaging 1.00
R0497:Mgam UTSW 6 40664892 missense probably damaging 1.00
R0699:Mgam UTSW 6 40643019 missense possibly damaging 0.84
R0738:Mgam UTSW 6 40754935 missense probably benign 0.01
R1033:Mgam UTSW 6 40680624 missense probably benign 0.07
R1403:Mgam UTSW 6 40666881 missense possibly damaging 0.93
R1403:Mgam UTSW 6 40666881 missense possibly damaging 0.93
R1430:Mgam UTSW 6 40756371 missense probably benign 0.08
R1432:Mgam UTSW 6 40756367 missense probably damaging 1.00
R1443:Mgam UTSW 6 40759780 nonsense probably null
R1470:Mgam UTSW 6 40759128 missense probably damaging 1.00
R1470:Mgam UTSW 6 40759128 missense probably damaging 1.00
R1519:Mgam UTSW 6 40661683 missense probably benign 0.45
R1654:Mgam UTSW 6 40757487 missense probably damaging 1.00
R1667:Mgam UTSW 6 40677044 missense possibly damaging 0.62
R1730:Mgam UTSW 6 40664860 missense possibly damaging 0.92
R1781:Mgam UTSW 6 40669863 missense probably damaging 1.00
R1783:Mgam UTSW 6 40664860 missense possibly damaging 0.92
R1829:Mgam UTSW 6 40666892 missense probably damaging 1.00
R1833:Mgam UTSW 6 40654718 critical splice donor site probably null
R1872:Mgam UTSW 6 40661300 nonsense probably null
R1912:Mgam UTSW 6 40764185 nonsense probably null
R1977:Mgam UTSW 6 40664880 missense probably benign 0.01
R2048:Mgam UTSW 6 40656429 missense possibly damaging 0.80
R2086:Mgam UTSW 6 40761028 splice site probably null
R2138:Mgam UTSW 6 40756450 missense probably damaging 1.00
R2224:Mgam UTSW 6 40764274 splice site probably null
R2408:Mgam UTSW 6 40686522 missense probably damaging 1.00
R2508:Mgam UTSW 6 40759783 missense probably damaging 1.00
R2842:Mgam UTSW 6 40661345 missense probably benign 0.01
R2847:Mgam UTSW 6 40652715 missense possibly damaging 0.67
R2848:Mgam UTSW 6 40652715 missense possibly damaging 0.67
R2965:Mgam UTSW 6 40768220 missense possibly damaging 0.46
R2966:Mgam UTSW 6 40768220 missense possibly damaging 0.46
R3035:Mgam UTSW 6 40663530 missense probably benign
R3895:Mgam UTSW 6 40759120 missense probably damaging 1.00
R4027:Mgam UTSW 6 40754902 missense probably damaging 1.00
R4030:Mgam UTSW 6 40754902 missense probably damaging 1.00
R4302:Mgam UTSW 6 40763085 missense probably benign 0.02
R4707:Mgam UTSW 6 40714632 splice site probably null
R4826:Mgam UTSW 6 40680648 missense possibly damaging 0.52
R4898:Mgam UTSW 6 40643054 missense probably benign
R5438:Mgam UTSW 6 40684521 missense probably damaging 1.00
R5492:Mgam UTSW 6 40756363 missense probably damaging 1.00
R5770:Mgam UTSW 6 40669804 missense probably benign 0.01
R5839:Mgam UTSW 6 40740064 missense possibly damaging 0.90
R5845:Mgam UTSW 6 40675323 missense possibly damaging 0.78
R5847:Mgam UTSW 6 40684055 missense probably benign 0.42
R5891:Mgam UTSW 6 40744348 missense probably benign
R6193:Mgam UTSW 6 40747920 nonsense probably null
R6423:Mgam UTSW 6 40677045 missense possibly damaging 0.84
R6706:Mgam UTSW 6 40744786 missense probably benign 0.00
R6813:Mgam UTSW 6 40750165 missense probably damaging 0.99
R6863:Mgam UTSW 6 40729009 missense probably benign 0.00
R6906:Mgam UTSW 6 40747919 missense probably damaging 1.00
R7091:Mgam UTSW 6 40768276 missense possibly damaging 0.95
R7099:Mgam UTSW 6 40661716 missense probably benign 0.09
R7282:Mgam UTSW 6 40656512 missense possibly damaging 0.71
R7282:Mgam UTSW 6 40763111 missense probably benign
R7354:Mgam UTSW 6 40744798 missense probably damaging 1.00
R7374:Mgam UTSW 6 40757439 missense possibly damaging 0.89
R7399:Mgam UTSW 6 40666854 missense probably damaging 0.99
R7406:Mgam UTSW 6 40663525 missense probably benign 0.13
R7446:Mgam UTSW 6 40746332 missense probably damaging 1.00
R7466:Mgam UTSW 6 40744789 missense probably benign 0.00
R7525:Mgam UTSW 6 40766020 missense probably benign 0.01
R7530:Mgam UTSW 6 40709218 splice site probably null
R7570:Mgam UTSW 6 40746433 missense probably benign 0.16
R7669:Mgam UTSW 6 40659010 missense probably benign 0.00
R7679:Mgam UTSW 6 40643046 missense probably damaging 0.98
R7746:Mgam UTSW 6 40668193 missense probably damaging 0.99
R7859:Mgam UTSW 6 40740179 missense possibly damaging 0.75
R7925:Mgam UTSW 6 40759051 missense probably damaging 0.99
R8206:Mgam UTSW 6 40680235 missense probably benign 0.00
R8244:Mgam UTSW 6 40750586 missense probably damaging 1.00
R8309:Mgam UTSW 6 40745177 missense possibly damaging 0.88
R8472:Mgam UTSW 6 40694526 splice site probably null
R8758:Mgam UTSW 6 40729043 missense probably benign 0.41
R8777:Mgam UTSW 6 40655251 missense probably damaging 0.97
R8777-TAIL:Mgam UTSW 6 40655251 missense probably damaging 0.97
R8783:Mgam UTSW 6 40656489 missense probably damaging 0.99
R8939:Mgam UTSW 6 40763203 critical splice donor site probably null
R8968:Mgam UTSW 6 40757811 critical splice acceptor site probably null
R8987:Mgam UTSW 6 40729636 missense probably damaging 1.00
R9055:Mgam UTSW 6 40714729 intron probably benign
R9171:Mgam UTSW 6 40768212 missense possibly damaging 0.76
R9252:Mgam UTSW 6 40729643 missense probably damaging 0.99
R9258:Mgam UTSW 6 40680187 missense probably benign
R9262:Mgam UTSW 6 40746488 critical splice donor site probably null
R9287:Mgam UTSW 6 40728971 intron probably benign
R9521:Mgam UTSW 6 40745184 missense probably damaging 1.00
R9589:Mgam UTSW 6 40750585 missense probably damaging 1.00
R9658:Mgam UTSW 6 40744377 missense possibly damaging 0.93
R9784:Mgam UTSW 6 40759090 missense probably damaging 1.00
RF011:Mgam UTSW 6 40757436 missense probably damaging 1.00
RF020:Mgam UTSW 6 40685309 missense probably damaging 1.00
RF023:Mgam UTSW 6 40680708 missense probably benign
X0021:Mgam UTSW 6 40659047 missense probably damaging 1.00
Z1088:Mgam UTSW 6 40643060 missense probably benign 0.01
Z1176:Mgam UTSW 6 40677644 critical splice donor site probably null
Z1176:Mgam UTSW 6 40729066 missense probably damaging 1.00
Z1177:Mgam UTSW 6 40740071 missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- GGGGAAATCCATCATTGGTGTG -3'
(R):5'- AAGAGACTGACATCGTACCCGG -3'

Sequencing Primer
(F):5'- AAATCCATCATTGGTGTGTGGGTG -3'
(R):5'- ACATCGTACCCGGGTCCC -3'
Posted On 2017-10-10