Incidental Mutation 'IGL03137:Hnmt'
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Hnmt
Ensembl Gene ENSMUSG00000026986
Gene Namehistamine N-methyltransferase
Accession Numbers
Is this an essential gene? Probably non essential (E-score: 0.118) question?
Stock #IGL03137
Quality Score
Chromosomal Location24002910-24049394 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 24048739 bp
Amino Acid Change Histidine to Leucine at position 29 (H29L)
Ref Sequence ENSEMBL: ENSMUSP00000110142 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000051416] [ENSMUST00000114497] [ENSMUST00000114498]
Predicted Effect probably damaging
Transcript: ENSMUST00000051416
AA Change: H29L

PolyPhen 2 Score 0.993 (Sensitivity: 0.70; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000062747
Gene: ENSMUSG00000026986
AA Change: H29L

Pfam:Methyltransf_23 30 218 3.6e-16 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000114497
AA Change: H29L

PolyPhen 2 Score 0.993 (Sensitivity: 0.70; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000110141
Gene: ENSMUSG00000026986
AA Change: H29L

Pfam:Methyltransf_23 29 218 4.3e-18 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000114498
AA Change: H29L

PolyPhen 2 Score 0.993 (Sensitivity: 0.70; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000110142
Gene: ENSMUSG00000026986
AA Change: H29L

Pfam:Methyltransf_23 30 218 3.6e-16 PFAM
Coding Region Coverage
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] In mammals, histamine is metabolized by two major pathways: N(tau)-methylation via histamine N-methyltransferase and oxidative deamination via diamine oxidase. This gene encodes the first enzyme which is found in the cytosol and uses S-adenosyl-L-methionine as the methyl donor. In the mammalian brain, the neurotransmitter activity of histamine is controlled by N(tau)-methylation as diamine oxidase is not found in the central nervous system. A common genetic polymorphism affects the activity levels of this gene product in red blood cells. Multiple alternatively spliced transcript variants that encode different proteins have been found for this gene. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit elevated histamine levels in the brain, increased aggression, hypoactivity and altered sleep-wake cycle. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 46 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4932438A13Rik T A 3: 37,034,602 M569K probably damaging Het
AI481877 G T 4: 59,094,162 F187L probably benign Het
Ankub1 T C 3: 57,690,357 D64G probably damaging Het
Apobec2 C T 17: 48,423,275 W121* probably null Het
Arid2 A G 15: 96,371,318 N1104S probably benign Het
Brap T C 5: 121,665,093 probably benign Het
Cilp A C 9: 65,278,168 N515T probably benign Het
Cpeb2 T A 5: 43,261,724 probably benign Het
Creb1 C T 1: 64,576,215 T242I possibly damaging Het
Ddx60 T C 8: 61,988,083 V1062A possibly damaging Het
Dock8 A G 19: 25,155,948 E1153G probably benign Het
Gk5 A G 9: 96,176,292 probably benign Het
Gm5478 G T 15: 101,644,382 N60K probably benign Het
Hmcn2 T A 2: 31,362,230 V904D probably damaging Het
Hsf1 A G 15: 76,496,449 probably benign Het
Igkv1-122 C A 6: 68,017,416 T96K probably damaging Het
Iyd T C 10: 3,551,987 I211T probably damaging Het
Kcnn1 G T 8: 70,850,737 H34N probably damaging Het
Krtap5-3 G T 7: 142,202,209 probably benign Het
Map3k19 C T 1: 127,824,315 R433K probably benign Het
Mss51 A C 14: 20,487,132 C89W probably damaging Het
Myh9 A T 15: 77,791,089 I276N probably damaging Het
Myof T C 19: 37,974,889 E420G probably damaging Het
Nfatc2ip C A 7: 126,390,568 V215L possibly damaging Het
Olfr1113 A T 2: 87,213,156 Y88F probably benign Het
Olfr631 T C 7: 103,929,594 M257T probably benign Het
Olfr73 G A 2: 88,034,410 A243V probably benign Het
Pcdhb4 T C 18: 37,308,516 I293T probably damaging Het
Pdcd6ip A G 9: 113,657,145 S729P possibly damaging Het
Pick1 C A 15: 79,245,301 H169N possibly damaging Het
Ppp4r4 A C 12: 103,581,384 K212T probably damaging Het
Racgap1 A G 15: 99,628,741 S314P probably damaging Het
Rasef C A 4: 73,734,483 E594* probably null Het
Ryr3 T G 2: 112,910,397 K522Q probably benign Het
Six5 T C 7: 19,097,147 probably benign Het
Slc26a9 G T 1: 131,763,877 E619D probably benign Het
Sqor A G 2: 122,808,071 I412V probably benign Het
Srrt T A 5: 137,296,117 probably benign Het
Sult1e1 C T 5: 87,578,616 R213K probably benign Het
Tmc2 T A 2: 130,240,130 L411H probably damaging Het
Tmem63b T A 17: 45,664,995 N511Y probably damaging Het
Ucp3 T A 7: 100,482,762 probably benign Het
Vmn1r201 A T 13: 22,474,804 I63F probably benign Het
Vps13c G T 9: 67,890,380 L522F probably damaging Het
Wwp1 T A 4: 19,678,408 T3S probably damaging Het
Zc3hav1 A G 6: 38,332,394 S498P probably benign Het
Other mutations in Hnmt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00479:Hnmt APN 2 24003884 nonsense probably null
IGL00857:Hnmt APN 2 24003783 missense probably benign 0.04
IGL01315:Hnmt APN 2 24019168 missense probably benign 0.02
IGL02205:Hnmt APN 2 24019145 missense probably damaging 1.00
IGL02647:Hnmt APN 2 24014307 missense possibly damaging 0.79
IGL03123:Hnmt APN 2 24019159 missense probably benign
R0018:Hnmt UTSW 2 24003628 missense possibly damaging 0.69
R1959:Hnmt UTSW 2 24003882 missense possibly damaging 0.84
R2106:Hnmt UTSW 2 24019118 missense probably benign 0.19
R2426:Hnmt UTSW 2 24019155 missense probably benign 0.11
R4024:Hnmt UTSW 2 24003765 missense probably benign
R4590:Hnmt UTSW 2 24019099 splice site probably null
R5643:Hnmt UTSW 2 24014239 missense probably damaging 1.00
R5644:Hnmt UTSW 2 24014239 missense probably damaging 1.00
R6240:Hnmt UTSW 2 24014269 missense probably benign 0.00
R7153:Hnmt UTSW 2 24014341 missense probably damaging 0.98
Posted On2016-08-02