Incidental Mutation 'R8464:Man2b1'
ID 656706
Institutional Source Beutler Lab
Gene Symbol Man2b1
Ensembl Gene ENSMUSG00000005142
Gene Name mannosidase 2, alpha B1
Synonyms lysosomal alpha-mannosidase
MMRRC Submission 067908-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R8464 (G1)
Quality Score 225.009
Status Not validated
Chromosome 8
Chromosomal Location 85809899-85824911 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 85820772 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Alanine to Threonine at position 657 (A657T)
Ref Sequence ENSEMBL: ENSMUSP00000034121 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000034121]
AlphaFold O09159
Predicted Effect possibly damaging
Transcript: ENSMUST00000034121
AA Change: A657T

PolyPhen 2 Score 0.552 (Sensitivity: 0.88; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000034121
Gene: ENSMUSG00000005142
AA Change: A657T

DomainStartEndE-ValueType
low complexity region 40 51 N/A INTRINSIC
Pfam:Glyco_hydro_38 64 381 2.7e-96 PFAM
Alpha-mann_mid 386 465 4.25e-23 SMART
Pfam:Glyco_hydro_38C 510 1002 6.2e-106 PFAM
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 99.1%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes an enzyme that hydrolyzes terminal, non-reducing alpha-D-mannose residues in alpha-D-mannosides. Its activity is necessary for the catabolism of N-linked carbohydrates released during glycoprotein turnover and it is member of family 38 of glycosyl hydrolases. The full length protein is processed in two steps. First, a 49 aa leader sequence is cleaved off and the remainder of the protein is processed into 3 peptides of 70 kDa, 42 kDa (D) and 13/15 kDa (E). Next, the 70 kDa peptide is further processed into three peptides (A, B and C). The A, B and C peptides are disulfide-linked. Defects in this gene have been associated with lysosomal alpha-mannosidosis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Mar 2010]
PHENOTYPE: Mice homozygous for a knock-out allele show urinary oligosaccharide excretion, storage of neutral sugars, oligosaccharide buildup in spleen, kidney, liver, testis and brain, clear vacuoles and axonal spheroids in CNS, PNS and other cell types, behavioralchanges, and enhanced long-term potentiation. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 40 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
3425401B19Rik T C 14: 32,381,934 (GRCm39) R1344G possibly damaging Het
4933402J07Rik C A 8: 88,315,649 (GRCm39) D246E probably damaging Het
Appl1 T A 14: 26,674,985 (GRCm39) K191* probably null Het
Bptf T C 11: 107,022,168 (GRCm39) D194G probably benign Het
Cacna2d2 T C 9: 107,389,206 (GRCm39) V223A probably damaging Het
Ccdc13 T C 9: 121,649,824 (GRCm39) K208E probably damaging Het
Chd7 T C 4: 8,811,465 (GRCm39) V813A probably benign Het
Chst14 T C 2: 118,757,524 (GRCm39) V131A probably benign Het
Ctla4 A G 1: 60,951,686 (GRCm39) T72A probably damaging Het
Dnmt3a T C 12: 3,949,635 (GRCm39) S531P probably benign Het
Erbb4 T C 1: 68,348,785 (GRCm39) I531V probably benign Het
Fam151a T A 4: 106,605,102 (GRCm39) M488K probably benign Het
Foxa1 C A 12: 57,589,246 (GRCm39) A325S probably benign Het
Ighv8-5 C T 12: 115,031,309 (GRCm39) D77N probably benign Het
Itga3 C A 11: 94,953,566 (GRCm39) A259S probably benign Het
Kcnh4 T C 11: 100,648,010 (GRCm39) N118D probably damaging Het
Kif5b A T 18: 6,225,381 (GRCm39) N216K probably damaging Het
Lipo2 C T 19: 33,726,023 (GRCm39) M76I probably benign Het
Mms19 A C 19: 41,935,522 (GRCm39) D831E probably damaging Het
Muc21 T G 17: 35,933,098 (GRCm39) probably benign Het
Myo1a G T 10: 127,554,453 (GRCm39) A808S probably benign Het
Myo7b A T 18: 32,095,757 (GRCm39) W1834R probably benign Het
Mypn T A 10: 62,966,977 (GRCm39) K900* probably null Het
Ogfr AGACCCCAAAAGCCAGGTGGGGCCAGAGGACCCCAAAAGCCAGGTGGGGCCAGAGGACCCCAAAAGCCAGGTGGGGCCAGAGGACCCAAAAGGCCAGGTGGAGCCAGAGGACCCAAAAGGCCAGGTGGGGCCAGAAGACCCAAAAGGCCAGGTGGGGCCAGAGGACCCAAAAGGCCAGGTGGGGCCAGAGGACCCCAAAAGCCAGGTGGGGCCAGAGGACCCCAAAAGCCAGGTGGAGCCAGAGGACCCCAAAAGCCAGGTGGAGCCAGAGGACCCCAAAAGCCAGGTGGAGCCAGAGGACCCCAAAAGCCAGGTGGGGCCAGAGGACCCCCAAAGCCAGGTGGGGCCAGAG AGACCCCAAAAGCCAGGTGGGGCCAGAGGACCCCAAAAGCCAGGTGGGGCCAGAGGACCCAAAAGGCCAGGTGGAGCCAGAGGACCCAAAAGGCCAGGTGGGGCCAGAAGACCCAAAAGGCCAGGTGGGGCCAGAGGACCCAAAAGGCCAGGTGGGGCCAGAGGACCCCAAAAGCCAGGTGGGGCCAGAGGACCCCAAAAGCCAGGTGGAGCCAGAGGACCCCAAAAGCCAGGTGGAGCCAGAGGACCCCAAAAGCCAGGTGGAGCCAGAGGACCCCAAAAGCCAGGTGGGGCCAGAGGACCCCCAAAGCCAGGTGGGGCCAGAG 2: 180,236,850 (GRCm39) probably benign Het
Or4b1d G T 2: 89,968,947 (GRCm39) H179N possibly damaging Het
Or4k40 A G 2: 111,251,192 (GRCm39) Y35H probably damaging Het
Or6c212 A T 10: 129,558,783 (GRCm39) I210N possibly damaging Het
Osgepl1 A G 1: 53,357,299 (GRCm39) T154A probably damaging Het
Pacsin2 A T 15: 83,263,384 (GRCm39) Y82* probably null Het
Pomgnt1 T C 4: 116,009,348 (GRCm39) Y104H probably damaging Het
Robo3 T C 9: 37,332,726 (GRCm39) S857G probably damaging Het
Scn9a T C 2: 66,396,625 (GRCm39) I89M probably damaging Het
Sdhd T C 9: 50,508,431 (GRCm39) H145R probably benign Het
Selenov C T 7: 27,987,897 (GRCm39) R260Q probably benign Het
Spag6l T C 16: 16,580,898 (GRCm39) E483G probably damaging Het
Ssh2 T A 11: 77,345,079 (GRCm39) Y1021* probably null Het
Syne2 C T 12: 76,012,546 (GRCm39) A2580V probably benign Het
Taf6 T C 5: 138,180,924 (GRCm39) E219G probably damaging Het
Ttc27 A G 17: 75,024,925 (GRCm39) T7A probably benign Het
Unc80 A G 1: 66,512,423 (GRCm39) K111R probably damaging Het
Other mutations in Man2b1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00588:Man2b1 APN 8 85,811,267 (GRCm39) splice site probably null
IGL00671:Man2b1 APN 8 85,820,567 (GRCm39) missense probably damaging 0.98
IGL01538:Man2b1 APN 8 85,824,059 (GRCm39) missense probably benign 0.00
dateline UTSW 8 85,811,366 (GRCm39) missense probably damaging 1.00
greenwich UTSW 8 85,812,085 (GRCm39) nonsense probably null
longitude UTSW 8 85,821,773 (GRCm39) nonsense probably null
meridian UTSW 8 85,823,381 (GRCm39) missense probably damaging 1.00
R0018:Man2b1 UTSW 8 85,824,118 (GRCm39) missense probably damaging 1.00
R0302:Man2b1 UTSW 8 85,819,645 (GRCm39) missense probably damaging 1.00
R0574:Man2b1 UTSW 8 85,823,405 (GRCm39) missense probably benign
R0727:Man2b1 UTSW 8 85,818,155 (GRCm39) missense probably damaging 1.00
R0837:Man2b1 UTSW 8 85,823,458 (GRCm39) missense possibly damaging 0.92
R1087:Man2b1 UTSW 8 85,821,800 (GRCm39) missense probably damaging 1.00
R1471:Man2b1 UTSW 8 85,813,474 (GRCm39) missense probably damaging 0.99
R1745:Man2b1 UTSW 8 85,820,563 (GRCm39) missense probably damaging 1.00
R1903:Man2b1 UTSW 8 85,813,451 (GRCm39) missense probably damaging 1.00
R2026:Man2b1 UTSW 8 85,821,964 (GRCm39) missense probably damaging 0.99
R2071:Man2b1 UTSW 8 85,812,013 (GRCm39) missense possibly damaging 0.90
R2120:Man2b1 UTSW 8 85,819,653 (GRCm39) splice site probably benign
R3897:Man2b1 UTSW 8 85,823,577 (GRCm39) splice site probably benign
R3971:Man2b1 UTSW 8 85,812,020 (GRCm39) missense probably damaging 0.98
R3972:Man2b1 UTSW 8 85,812,020 (GRCm39) missense probably damaging 0.98
R4096:Man2b1 UTSW 8 85,811,366 (GRCm39) missense probably damaging 1.00
R4497:Man2b1 UTSW 8 85,817,565 (GRCm39) missense probably benign 0.22
R5183:Man2b1 UTSW 8 85,822,413 (GRCm39) missense probably damaging 1.00
R5191:Man2b1 UTSW 8 85,811,088 (GRCm39) missense probably damaging 1.00
R5644:Man2b1 UTSW 8 85,820,839 (GRCm39) missense possibly damaging 0.61
R6027:Man2b1 UTSW 8 85,823,381 (GRCm39) missense probably damaging 1.00
R6291:Man2b1 UTSW 8 85,823,675 (GRCm39) missense probably benign 0.44
R6341:Man2b1 UTSW 8 85,822,028 (GRCm39) missense probably damaging 1.00
R6467:Man2b1 UTSW 8 85,824,076 (GRCm39) missense possibly damaging 0.91
R6622:Man2b1 UTSW 8 85,811,108 (GRCm39) missense probably damaging 1.00
R6624:Man2b1 UTSW 8 85,823,482 (GRCm39) missense probably benign 0.01
R6631:Man2b1 UTSW 8 85,813,440 (GRCm39) splice site probably null
R6828:Man2b1 UTSW 8 85,813,548 (GRCm39) missense possibly damaging 0.88
R6983:Man2b1 UTSW 8 85,817,700 (GRCm39) splice site probably null
R7159:Man2b1 UTSW 8 85,813,909 (GRCm39) missense probably benign 0.09
R7267:Man2b1 UTSW 8 85,813,804 (GRCm39) missense probably damaging 1.00
R7537:Man2b1 UTSW 8 85,817,594 (GRCm39) nonsense probably null
R7786:Man2b1 UTSW 8 85,812,085 (GRCm39) nonsense probably null
R8022:Man2b1 UTSW 8 85,822,242 (GRCm39) missense probably damaging 1.00
R8069:Man2b1 UTSW 8 85,823,674 (GRCm39) missense probably benign 0.03
R8251:Man2b1 UTSW 8 85,821,758 (GRCm39) missense probably damaging 0.99
R8406:Man2b1 UTSW 8 85,822,907 (GRCm39) missense probably damaging 1.00
R8701:Man2b1 UTSW 8 85,821,782 (GRCm39) missense probably damaging 1.00
R8792:Man2b1 UTSW 8 85,821,773 (GRCm39) nonsense probably null
R8891:Man2b1 UTSW 8 85,811,084 (GRCm39) missense probably damaging 1.00
R8930:Man2b1 UTSW 8 85,822,022 (GRCm39) missense probably damaging 1.00
R8932:Man2b1 UTSW 8 85,822,022 (GRCm39) missense probably damaging 1.00
R8953:Man2b1 UTSW 8 85,818,539 (GRCm39) missense probably benign 0.36
R9059:Man2b1 UTSW 8 85,818,155 (GRCm39) missense probably damaging 1.00
Z1176:Man2b1 UTSW 8 85,820,567 (GRCm39) missense probably damaging 0.98
Predicted Primers PCR Primer
(F):5'- ACATTTGACTCTGGCACGG -3'
(R):5'- ATGATGAAATAGTTCCCACCCGC -3'

Sequencing Primer
(F):5'- AGATTGAAAACTTGGAACAGAACCTC -3'
(R):5'- CCGCACCTTACATGAGGC -3'
Posted On 2021-01-18