Incidental Mutation 'R1087:Man2b1'
ID 85072
Institutional Source Beutler Lab
Gene Symbol Man2b1
Ensembl Gene ENSMUSG00000005142
Gene Name mannosidase 2, alpha B1
Synonyms lysosomal alpha-mannosidase
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R1087 (G1)
Quality Score 225
Status Not validated
Chromosome 8
Chromosomal Location 85809899-85824911 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 85821800 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Methionine at position 701 (V701M)
Ref Sequence ENSEMBL: ENSMUSP00000034121 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000034121]
AlphaFold O09159
Predicted Effect probably damaging
Transcript: ENSMUST00000034121
AA Change: V701M

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000034121
Gene: ENSMUSG00000005142
AA Change: V701M

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: 99.4%
  • 3x: 98.8%
  • 10x: 97.5%
  • 20x: 95.3%
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: 41 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Anxa11 A G 14: 25,870,603 (GRCm39) M56V unknown Het
Arid4a G A 12: 71,122,112 (GRCm39) S509N probably benign Het
Atp8b3 T C 10: 80,356,017 (GRCm39) R1232G probably benign Het
Axdnd1 T A 1: 156,193,259 (GRCm39) M643L probably benign Het
Bsph1 A G 7: 13,206,106 (GRCm39) Y57C probably damaging Het
Car13 G A 3: 14,706,885 (GRCm39) W6* probably null Het
Ccdc192 T C 18: 57,863,870 (GRCm39) S225P probably damaging Het
Ccng2 T C 5: 93,421,303 (GRCm39) I271T probably benign Het
Ces1f T A 8: 93,984,923 (GRCm39) D468V probably damaging Het
Chil4 A G 3: 106,117,881 (GRCm39) Y130H probably benign Het
Clns1a T A 7: 97,354,862 (GRCm39) H69Q possibly damaging Het
Cnot11 T A 1: 39,579,139 (GRCm39) S335T probably benign Het
Dcaf11 A G 14: 55,806,581 (GRCm39) S461G probably damaging Het
Dlst G A 12: 85,179,413 (GRCm39) M417I probably damaging Het
Dock4 A C 12: 40,779,937 (GRCm39) I612L probably benign Het
Endod1 A G 9: 14,268,489 (GRCm39) V332A possibly damaging Het
F830045P16Rik T C 2: 129,314,639 (GRCm39) T213A possibly damaging Het
Gm5773 A T 3: 93,681,065 (GRCm39) I246F probably damaging Het
Gml2 T A 15: 74,695,946 (GRCm39) D113E possibly damaging Het
Grik1 T C 16: 87,803,265 (GRCm39) E309G probably benign Het
Hectd1 A T 12: 51,823,355 (GRCm39) I1013K probably damaging Het
Kcmf1 T C 6: 72,835,863 (GRCm39) E22G probably damaging Het
Kdm5b T A 1: 134,528,375 (GRCm39) C361S probably damaging Het
Kif21b T C 1: 136,090,561 (GRCm39) S1150P probably damaging Het
Marchf10 T C 11: 105,281,488 (GRCm39) R266G probably damaging Het
Milr1 A G 11: 106,645,848 (GRCm39) Y130C probably damaging Het
Nampt A G 12: 32,883,042 (GRCm39) T76A possibly damaging Het
Nek10 A G 14: 14,827,059 (GRCm38) N86D possibly damaging Het
Nms T G 1: 38,983,192 (GRCm39) probably null Het
Or10w1 T A 19: 13,632,376 (GRCm39) C194* probably null Het
Parp14 A G 16: 35,678,658 (GRCm39) S437P probably damaging Het
Pif1 A G 9: 65,496,377 (GRCm39) M226V probably benign Het
Rnf169 T C 7: 99,592,204 (GRCm39) R216G probably benign Het
Rorb T C 19: 18,937,778 (GRCm39) K307R probably damaging Het
Scube2 T C 7: 109,430,882 (GRCm39) D439G probably damaging Het
Serpinb8 T C 1: 107,534,727 (GRCm39) V266A probably damaging Het
Strip2 A G 6: 29,927,633 (GRCm39) E226G probably damaging Het
Trim23 A G 13: 104,324,618 (GRCm39) D212G possibly damaging Het
Vmn1r172 T A 7: 23,359,673 (GRCm39) V186D possibly damaging Het
Vwde A T 6: 13,186,803 (GRCm39) C895S probably damaging Het
Zswim8 C A 14: 20,767,933 (GRCm39) probably null 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
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
R8464:Man2b1 UTSW 8 85,820,772 (GRCm39) missense possibly damaging 0.55
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'- GAACATCCCATTGAGTCCGTCTGAG -3'
(R):5'- TGGGTCGATAATCATCCCTGGGAAG -3'

Sequencing Primer
(F):5'- CCGTCTGAGGTGGATGTTG -3'
(R):5'- TCAAAGCGGCTGATGACTTC -3'
Posted On 2013-11-18