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4-70599580-G-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_016519.6(AMBN):​c.228G>T​(p.Met76Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000549 in 1,613,282 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0032 ( 1 hom., cov: 31)
Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

AMBN
NM_016519.6 missense

Scores

3
15

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.41
Variant links:
Genes affected
AMBN (HGNC:452): (ameloblastin) This gene encodes the nonamelogenin enamel matrix protein ameloblastin. The encoded protein may be important in enamel matrix formation and mineralization. This gene is located in the calcium-binding phosphoprotein gene cluster on chromosome 4. Mutations in this gene may be associated with dentinogenesis imperfect and autosomal dominant amylogenesis imperfect. [provided by RefSeq, Aug 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.012586564).
BP6
Variant 4-70599580-G-T is Benign according to our data. Variant chr4-70599580-G-T is described in ClinVar as [Benign]. Clinvar id is 715973.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AMBNNM_016519.6 linkuse as main transcriptc.228G>T p.Met76Ile missense_variant 5/13 ENST00000322937.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AMBNENST00000322937.10 linkuse as main transcriptc.228G>T p.Met76Ile missense_variant 5/131 NM_016519.6 P1Q9NP70-1
AMBNENST00000449493.2 linkuse as main transcriptc.228G>T p.Met76Ile missense_variant 5/135 Q9NP70-2

Frequencies

GnomAD3 genomes
AF:
0.00319
AC:
484
AN:
151862
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00112
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.000697
AC:
175
AN:
250904
Hom.:
0
AF XY:
0.000516
AC XY:
70
AN XY:
135592
show subpopulations
Gnomad AFR exome
AF:
0.00985
Gnomad AMR exome
AF:
0.000376
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000274
AC:
400
AN:
1461302
Hom.:
0
Cov.:
30
AF XY:
0.000231
AC XY:
168
AN XY:
726960
show subpopulations
Gnomad4 AFR exome
AF:
0.0100
Gnomad4 AMR exome
AF:
0.000492
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.000613
GnomAD4 genome
AF:
0.00319
AC:
485
AN:
151980
Hom.:
1
Cov.:
31
AF XY:
0.00307
AC XY:
228
AN XY:
74266
show subpopulations
Gnomad4 AFR
AF:
0.0111
Gnomad4 AMR
AF:
0.00111
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00137
Hom.:
1
Bravo
AF:
0.00369
ESP6500AA
AF:
0.0125
AC:
55
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000947
AC:
115

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.47
BayesDel_addAF
Benign
-0.58
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.092
T;.;.
Eigen
Benign
0.065
Eigen_PC
Benign
0.13
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.72
T;T;T
MetaRNN
Benign
0.013
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.97
L;.;L
MutationTaster
Benign
0.92
N;N
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-1.4
N;.;N
REVEL
Benign
0.048
Sift
Benign
0.062
T;.;T
Sift4G
Benign
0.14
T;T;D
Polyphen
0.45
P;.;.
Vest4
0.39
MutPred
0.63
Loss of glycosylation at P81 (P = 0.0282);Loss of glycosylation at P81 (P = 0.0282);Loss of glycosylation at P81 (P = 0.0282);
MVP
0.46
MPC
0.085
ClinPred
0.043
T
GERP RS
4.9
Varity_R
0.17
gMVP
0.28

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs145190129; hg19: chr4-71465297; API