Incidental Mutation 'R5123:Gcnt2'
ID 393413
Institutional Source Beutler Lab
Gene Symbol Gcnt2
Ensembl Gene ENSMUSG00000021360
Gene Name glucosaminyl (N-acetyl) transferase 2 (I blood group)
Synonyms 5330430K10Rik, IGnTB, IGnT, IGnTA, IGnTC
MMRRC Submission 042711-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.110) question?
Stock # R5123 (G1)
Quality Score 225
Status Validated
Chromosome 13
Chromosomal Location 41013417-41114368 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 41071831 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Aspartic acid at position 158 (V158D)
Ref Sequence ENSEMBL: ENSMUSP00000066467 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000067778] [ENSMUST00000069958] [ENSMUST00000110191] [ENSMUST00000225759]
AlphaFold P97402
Predicted Effect probably damaging
Transcript: ENSMUST00000067778
AA Change: V158D

PolyPhen 2 Score 0.988 (Sensitivity: 0.73; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000066467
Gene: ENSMUSG00000021360
AA Change: V158D

DomainStartEndE-ValueType
transmembrane domain 7 26 N/A INTRINSIC
Pfam:Branch 95 357 4.2e-58 PFAM
low complexity region 377 386 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000069958
SMART Domains Protein: ENSMUSP00000070942
Gene: ENSMUSG00000021360

DomainStartEndE-ValueType
low complexity region 8 21 N/A INTRINSIC
Pfam:Branch 95 357 8.4e-60 PFAM
low complexity region 377 386 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000110191
SMART Domains Protein: ENSMUSP00000105820
Gene: ENSMUSG00000021360

DomainStartEndE-ValueType
transmembrane domain 7 24 N/A INTRINSIC
Pfam:Branch 95 357 5.2e-61 PFAM
low complexity region 377 386 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000224935
Predicted Effect possibly damaging
Transcript: ENSMUST00000225759
AA Change: V158D

PolyPhen 2 Score 0.803 (Sensitivity: 0.84; Specificity: 0.93)
Meta Mutation Damage Score 0.4845 question?
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.4%
  • 10x: 96.6%
  • 20x: 93.5%
Validation Efficiency 98% (53/54)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes the enzyme responsible for formation of the blood group I antigen. The i and I antigens are distinguished by linear and branched poly-N-acetyllactosaminoglycans, respectively. The encoded protein is the I-branching enzyme, a beta-1,6-N-acetylglucosaminyltransferase responsible for the conversion of fetal i antigen to adult I antigen in erythrocytes during embryonic development. Mutations in this gene have been associated with adult i blood group phenotype. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a knock-out allele show hypoactivity, a reduced B cell number, epidermoid cyst formation in male abdominal skin, and impaired renal function with increased blood urea nitrogen and creatinine levels and vacuolization of renal tubular epithelial cells in aging mice. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 45 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca3 G A 17: 24,603,434 (GRCm39) G542D possibly damaging Het
Adh6b A G 3: 138,063,450 (GRCm39) Y343C probably damaging Het
Adsl T A 15: 80,836,495 (GRCm39) probably null Het
Apob T A 12: 8,057,630 (GRCm39) probably null Het
Atp6ap1l T A 13: 91,047,017 (GRCm39) probably benign Het
Cacnb3 A G 15: 98,537,750 (GRCm39) D74G probably damaging Het
Cfap251 A G 5: 123,411,696 (GRCm39) probably benign Het
Clca3a2 T A 3: 144,512,104 (GRCm39) D544V probably damaging Het
Col3a1 G A 1: 45,372,756 (GRCm39) probably benign Het
D7Ertd443e A G 7: 133,951,397 (GRCm39) probably null Het
Dscam T C 16: 96,573,637 (GRCm39) D775G probably damaging Het
Eif2b3 T A 4: 116,879,408 (GRCm39) M16K probably damaging Het
Eml5 T C 12: 98,840,771 (GRCm39) Y281C probably damaging Het
Epha2 T A 4: 141,036,176 (GRCm39) L204Q possibly damaging Het
Filip1l A C 16: 57,391,025 (GRCm39) I538L possibly damaging Het
Gnaq A G 19: 16,309,449 (GRCm39) N162S probably benign Het
Haus5 A T 7: 30,353,651 (GRCm39) N575K probably benign Het
Hjurp A T 1: 88,202,772 (GRCm39) Y71N possibly damaging Het
Igsf5 A G 16: 96,174,279 (GRCm39) D103G probably damaging Het
Myo10 A G 15: 25,726,569 (GRCm39) D297G possibly damaging Het
Net1 C T 13: 3,936,623 (GRCm39) R314H probably damaging Het
Or4b1c C A 2: 90,126,512 (GRCm39) R231L probably benign Het
Or4k51 T A 2: 111,584,897 (GRCm39) V101D probably damaging Het
Pcsk4 C A 10: 80,157,979 (GRCm39) Q586H probably null Het
Pramel11 A T 4: 143,623,706 (GRCm39) M156K probably benign Het
Prss1 A G 6: 41,440,131 (GRCm39) D156G possibly damaging Het
Rnf133 A T 6: 23,649,259 (GRCm39) N266K probably damaging Het
Setd2 G T 9: 110,446,595 (GRCm39) A2482S possibly damaging Het
Sgo2a A T 1: 58,055,726 (GRCm39) S637C probably damaging Het
Slc2a5 C A 4: 150,224,262 (GRCm39) S290* probably null Het
Spata6 T G 4: 111,625,992 (GRCm39) H120Q possibly damaging Het
Stk11 G A 10: 79,963,775 (GRCm39) V194I probably damaging Het
Tkt T C 14: 30,287,603 (GRCm39) V199A probably benign Het
Traf3 G A 12: 111,209,952 (GRCm39) V183M possibly damaging Het
Trappc11 T C 8: 47,966,437 (GRCm39) Y483C probably damaging Het
Trappc9 T C 15: 72,785,215 (GRCm39) probably benign Het
Trim59 T C 3: 68,945,067 (GRCm39) H91R probably benign Het
Ttc21a A G 9: 119,781,278 (GRCm39) S484G probably benign Het
Usp13 A T 3: 32,969,947 (GRCm39) H691L probably benign Het
Vmn1r238 T C 18: 3,123,243 (GRCm39) Y57C probably benign Het
Vmn2r111 T A 17: 22,790,124 (GRCm39) Q294L possibly damaging Het
Vmn2r17 A G 5: 109,575,774 (GRCm39) D215G possibly damaging Het
Zfp280b A G 10: 75,875,183 (GRCm39) D354G probably benign Het
Zfp607a A G 7: 27,578,523 (GRCm39) H531R probably damaging Het
Zfp74 A T 7: 29,634,158 (GRCm39) C517S probably damaging Het
Other mutations in Gcnt2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01523:Gcnt2 APN 13 41,041,339 (GRCm39) missense probably benign 0.06
IGL01693:Gcnt2 APN 13 41,041,549 (GRCm39) missense probably benign
IGL02506:Gcnt2 APN 13 41,040,856 (GRCm39) missense probably benign 0.02
IGL03184:Gcnt2 APN 13 41,041,660 (GRCm39) missense probably benign 0.01
BB001:Gcnt2 UTSW 13 41,072,040 (GRCm39) nonsense probably null
BB011:Gcnt2 UTSW 13 41,072,040 (GRCm39) nonsense probably null
PIT4472001:Gcnt2 UTSW 13 41,071,413 (GRCm39) missense probably benign 0.39
R0358:Gcnt2 UTSW 13 41,014,329 (GRCm39) missense probably damaging 0.99
R0734:Gcnt2 UTSW 13 41,013,997 (GRCm39) missense probably benign 0.00
R1863:Gcnt2 UTSW 13 41,014,577 (GRCm39) missense possibly damaging 0.95
R3103:Gcnt2 UTSW 13 41,072,082 (GRCm39) missense probably benign 0.00
R3156:Gcnt2 UTSW 13 41,014,654 (GRCm39) missense probably benign 0.36
R3893:Gcnt2 UTSW 13 41,013,922 (GRCm39) missense probably benign 0.14
R4134:Gcnt2 UTSW 13 41,041,283 (GRCm39) missense probably damaging 1.00
R4135:Gcnt2 UTSW 13 41,041,283 (GRCm39) missense probably damaging 1.00
R4279:Gcnt2 UTSW 13 41,041,666 (GRCm39) missense probably benign 0.17
R4422:Gcnt2 UTSW 13 41,014,001 (GRCm39) nonsense probably null
R4599:Gcnt2 UTSW 13 41,040,966 (GRCm39) missense probably benign
R4618:Gcnt2 UTSW 13 41,111,670 (GRCm39) nonsense probably null
R4908:Gcnt2 UTSW 13 41,014,210 (GRCm39) missense probably damaging 1.00
R5291:Gcnt2 UTSW 13 41,072,268 (GRCm39) missense probably damaging 1.00
R5437:Gcnt2 UTSW 13 41,014,652 (GRCm39) missense probably damaging 1.00
R5463:Gcnt2 UTSW 13 41,071,650 (GRCm39) missense possibly damaging 0.80
R5471:Gcnt2 UTSW 13 41,014,195 (GRCm39) missense probably damaging 1.00
R5472:Gcnt2 UTSW 13 41,107,055 (GRCm39) missense probably benign 0.30
R5493:Gcnt2 UTSW 13 41,107,076 (GRCm39) missense possibly damaging 0.70
R5586:Gcnt2 UTSW 13 41,014,429 (GRCm39) missense probably damaging 1.00
R5695:Gcnt2 UTSW 13 41,071,675 (GRCm39) missense probably benign 0.03
R6244:Gcnt2 UTSW 13 41,014,717 (GRCm39) missense probably damaging 1.00
R6293:Gcnt2 UTSW 13 41,072,173 (GRCm39) missense probably damaging 1.00
R7036:Gcnt2 UTSW 13 41,041,032 (GRCm39) frame shift probably null
R7077:Gcnt2 UTSW 13 41,013,896 (GRCm39) missense probably benign
R7432:Gcnt2 UTSW 13 41,040,688 (GRCm39) intron probably benign
R7474:Gcnt2 UTSW 13 41,111,733 (GRCm39) missense probably damaging 1.00
R7508:Gcnt2 UTSW 13 41,041,157 (GRCm39) missense probably benign 0.02
R7599:Gcnt2 UTSW 13 41,014,343 (GRCm39) nonsense probably null
R7678:Gcnt2 UTSW 13 41,107,195 (GRCm39) missense probably benign 0.01
R7806:Gcnt2 UTSW 13 41,071,717 (GRCm39) missense probably damaging 1.00
R7808:Gcnt2 UTSW 13 41,014,338 (GRCm39) missense possibly damaging 0.81
R7909:Gcnt2 UTSW 13 41,013,926 (GRCm39) missense probably benign 0.00
R7924:Gcnt2 UTSW 13 41,072,040 (GRCm39) nonsense probably null
R8110:Gcnt2 UTSW 13 41,071,198 (GRCm39) start gained probably benign
R8287:Gcnt2 UTSW 13 41,014,108 (GRCm39) missense probably damaging 1.00
R8782:Gcnt2 UTSW 13 41,072,229 (GRCm39) missense probably damaging 0.98
R8956:Gcnt2 UTSW 13 41,041,204 (GRCm39) missense probably benign 0.30
R9225:Gcnt2 UTSW 13 41,014,336 (GRCm39) missense probably damaging 1.00
R9357:Gcnt2 UTSW 13 41,041,732 (GRCm39) missense possibly damaging 0.92
Z1088:Gcnt2 UTSW 13 41,072,115 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- TCCCCTGGCTTACATCATGG -3'
(R):5'- TTCCTGGTGTACATATTTAGTCCG -3'

Sequencing Primer
(F):5'- TGGTGATCCACAAAGACTTCG -3'
(R):5'- TACAACTATGTACGCAGGGGGC -3'
Posted On 2016-06-15