Incidental Mutation 'R9059:Man2b1'
ID 688870
Institutional Source Beutler Lab
Gene Symbol Man2b1
Ensembl Gene ENSMUSG00000005142
Gene Name mannosidase 2, alpha B1
Synonyms lysosomal alpha-mannosidase
MMRRC Submission 068885-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R9059 (G1)
Quality Score 225.009
Status Validated
Chromosome 8
Chromosomal Location 85083270-85098282 bp(+) (GRCm38)
Type of Mutation missense
DNA Base Change (assembly) T to C at 85091526 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change Valine to Alanine at position 442 (V442A)
Ref Sequence ENSEMBL: ENSMUSP00000034121 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000034121] [ENSMUST00000209361]
AlphaFold O09159
Predicted Effect probably damaging
Transcript: ENSMUST00000034121
AA Change: V442A

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000034121
Gene: ENSMUSG00000005142
AA Change: V442A

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
Predicted Effect probably benign
Transcript: ENSMUST00000209361
Meta Mutation Damage Score 0.6568 question?
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 98.9%
Validation Efficiency 100% (45/45)
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: 45 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
9030624G23Rik A T 12: 24,074,731 D48E probably benign Het
Ablim2 A G 5: 35,802,506 T101A probably damaging Het
Acot8 A G 2: 164,792,909 S316P probably benign Het
Acta2 G T 19: 34,241,755 A349D possibly damaging Het
Adgrv1 C A 13: 81,414,573 probably null Het
Ankrd55 A G 13: 112,318,539 D57G probably damaging Het
Azin2 A G 4: 128,934,647 Y351H probably benign Het
Ccdc142 T C 6: 83,102,419 C246R probably damaging Het
Col25a1 C A 3: 130,474,850 Q179K unknown Het
Ddx46 C T 13: 55,652,108 A277V probably benign Het
Diaph1 T A 18: 37,889,745 N792I possibly damaging Het
Dnah11 G A 12: 118,130,843 P830L probably benign Het
Dnah3 C G 7: 120,085,145 R252S probably benign Het
Dnah5 A G 15: 28,245,666 D550G probably benign Het
Dph3 T C 14: 32,085,427 N31D probably benign Het
Dsg1c A T 18: 20,275,249 T452S probably damaging Het
Dsg4 T A 18: 20,471,125 M883K possibly damaging Het
Epn1 T G 7: 5,095,068 S293A probably benign Het
Fggy T A 4: 95,800,604 Y318* probably null Het
Gm11639 T C 11: 104,751,863 V1104A possibly damaging Het
Hip1 A G 5: 135,428,743 L703P probably benign Het
Hps4 G A 5: 112,378,039 S642N possibly damaging Het
Igf2r GCAGCCCTCCATAGGCGCCAGCCCTCCATAGGCGC GCAGCCCTCCATAGGCGC 17: 12,751,293 probably null Het
Klk15 C T 7: 43,938,366 H73Y possibly damaging Het
Larp4 A G 15: 99,991,812 E204G probably benign Het
Lbr A G 1: 181,817,554 I511T Het
Lingo3 G T 10: 80,834,689 T469K probably benign Het
Lrrc30 A T 17: 67,631,803 W261R probably damaging Het
Mroh3 T A 1: 136,181,795 R891S probably benign Het
Mtcl1 T A 17: 66,343,611 M1620L probably benign Het
Myo18a T C 11: 77,778,073 V253A possibly damaging Het
Olfr1453 A T 19: 13,027,913 C139S probably damaging Het
Pcdhb22 A T 18: 37,519,669 N140Y probably damaging Het
Ppp1r9b T C 11: 94,992,428 V294A probably benign Het
Ptk7 A T 17: 46,566,191 D980E probably damaging Het
Rdh11 T A 12: 79,191,939 probably benign Het
Sec23ip T G 7: 128,764,081 L558R probably damaging Het
Slc22a26 C T 19: 7,785,194 M460I probably benign Het
Smc1b G A 15: 85,120,674 Q400* probably null Het
Spg11 T C 2: 122,088,307 E947G probably damaging Het
Stab1 T C 14: 31,154,848 I840V probably benign Het
Tlk1 T C 2: 70,786,933 T68A possibly damaging Het
Traip A G 9: 107,963,350 I273V probably benign Het
Trim30c T G 7: 104,382,065 *514C probably null Het
U2surp A G 9: 95,481,663 Y615H probably damaging Het
Other mutations in Man2b1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00588:Man2b1 APN 8 85084638 splice site probably null
IGL00671:Man2b1 APN 8 85093938 missense probably damaging 0.98
IGL01538:Man2b1 APN 8 85097430 missense probably benign 0.00
dateline UTSW 8 85084737 missense probably damaging 1.00
greenwich UTSW 8 85085456 nonsense probably null
longitude UTSW 8 85095144 nonsense probably null
meridian UTSW 8 85096752 missense probably damaging 1.00
R0018:Man2b1 UTSW 8 85097489 missense probably damaging 1.00
R0302:Man2b1 UTSW 8 85093016 missense probably damaging 1.00
R0574:Man2b1 UTSW 8 85096776 missense probably benign
R0727:Man2b1 UTSW 8 85091526 missense probably damaging 1.00
R0837:Man2b1 UTSW 8 85096829 missense possibly damaging 0.92
R1087:Man2b1 UTSW 8 85095171 missense probably damaging 1.00
R1471:Man2b1 UTSW 8 85086845 missense probably damaging 0.99
R1745:Man2b1 UTSW 8 85093934 missense probably damaging 1.00
R1903:Man2b1 UTSW 8 85086822 missense probably damaging 1.00
R2026:Man2b1 UTSW 8 85095335 missense probably damaging 0.99
R2071:Man2b1 UTSW 8 85085384 missense possibly damaging 0.90
R2120:Man2b1 UTSW 8 85093024 splice site probably benign
R3897:Man2b1 UTSW 8 85096948 splice site probably benign
R3971:Man2b1 UTSW 8 85085391 missense probably damaging 0.98
R3972:Man2b1 UTSW 8 85085391 missense probably damaging 0.98
R4096:Man2b1 UTSW 8 85084737 missense probably damaging 1.00
R4497:Man2b1 UTSW 8 85090936 missense probably benign 0.22
R5183:Man2b1 UTSW 8 85095784 missense probably damaging 1.00
R5191:Man2b1 UTSW 8 85084459 missense probably damaging 1.00
R5644:Man2b1 UTSW 8 85094210 missense possibly damaging 0.61
R6027:Man2b1 UTSW 8 85096752 missense probably damaging 1.00
R6291:Man2b1 UTSW 8 85097046 missense probably benign 0.44
R6341:Man2b1 UTSW 8 85095399 missense probably damaging 1.00
R6467:Man2b1 UTSW 8 85097447 missense possibly damaging 0.91
R6622:Man2b1 UTSW 8 85084479 missense probably damaging 1.00
R6624:Man2b1 UTSW 8 85096853 missense probably benign 0.01
R6631:Man2b1 UTSW 8 85086811 splice site probably null
R6828:Man2b1 UTSW 8 85086919 missense possibly damaging 0.88
R6983:Man2b1 UTSW 8 85091071 splice site probably null
R7159:Man2b1 UTSW 8 85087280 missense probably benign 0.09
R7267:Man2b1 UTSW 8 85087175 missense probably damaging 1.00
R7537:Man2b1 UTSW 8 85090965 nonsense probably null
R7786:Man2b1 UTSW 8 85085456 nonsense probably null
R8022:Man2b1 UTSW 8 85095613 missense probably damaging 1.00
R8069:Man2b1 UTSW 8 85097045 missense probably benign 0.03
R8251:Man2b1 UTSW 8 85095129 missense probably damaging 0.99
R8406:Man2b1 UTSW 8 85096278 missense probably damaging 1.00
R8464:Man2b1 UTSW 8 85094143 missense possibly damaging 0.55
R8701:Man2b1 UTSW 8 85095153 missense probably damaging 1.00
R8792:Man2b1 UTSW 8 85095144 nonsense probably null
R8891:Man2b1 UTSW 8 85084455 missense probably damaging 1.00
R8930:Man2b1 UTSW 8 85095393 missense probably damaging 1.00
R8932:Man2b1 UTSW 8 85095393 missense probably damaging 1.00
R8953:Man2b1 UTSW 8 85091910 missense probably benign 0.36
Z1176:Man2b1 UTSW 8 85093938 missense probably damaging 0.98
Predicted Primers PCR Primer
(F):5'- GCACCTCTTCGTAAGTGTCATCTG -3'
(R):5'- TCTGCACTAAGGTCTGCACC -3'

Sequencing Primer
(F):5'- CATCTGTTGACCATGGATTGAATG -3'
(R):5'- ACTAAGGTCTGCACCCCAGG -3'
Posted On 2021-11-19