chr2-219055182-C-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_002181.4(IHH):​c.*25G>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00231 in 1,552,398 control chromosomes in the GnomAD database, including 141 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0030 ( 23 hom., cov: 33)
Exomes 𝑓: 0.0022 ( 118 hom. )

Consequence

IHH
NM_002181.4 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.0320
Variant links:
Genes affected
IHH (HGNC:5956): (Indian hedgehog signaling molecule) This gene encodes a member of the hedgehog family of proteins. The encoded preproprotein is proteolytically processed to generate multiple protein products, including an N-terminal fragment that is involved in signaling. Hedgehog family proteins are essential secreted signaling molecules that regulate a variety of developmental processes including growth, patterning and morphogenesis. The protein encoded by this gene specifically plays a role in bone growth and differentiation. Mutations in this gene are the cause of brachydactyly type A1, which is characterized by shortening or malformation of the fingers and toes. Mutations in this gene are also the cause of acrocapitofemoral dysplasia. [provided by RefSeq, Nov 2015]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.72).
BP6
Variant 2-219055182-C-A is Benign according to our data. Variant chr2-219055182-C-A is described in ClinVar as [Benign]. Clinvar id is 334431.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.079 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IHHNM_002181.4 linkuse as main transcriptc.*25G>T 3_prime_UTR_variant 3/3 ENST00000295731.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IHHENST00000295731.7 linkuse as main transcriptc.*25G>T 3_prime_UTR_variant 3/31 NM_002181.4 P1

Frequencies

GnomAD3 genomes
AF:
0.00304
AC:
463
AN:
152258
Hom.:
23
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0856
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00382
GnomAD3 exomes
AF:
0.00676
AC:
1030
AN:
152322
Hom.:
36
AF XY:
0.00672
AC XY:
549
AN XY:
81666
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000805
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0908
Gnomad SAS exome
AF:
0.000568
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000866
Gnomad OTH exome
AF:
0.00208
GnomAD4 exome
AF:
0.00223
AC:
3129
AN:
1400022
Hom.:
118
Cov.:
30
AF XY:
0.00220
AC XY:
1523
AN XY:
690764
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000139
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0805
Gnomad4 SAS exome
AF:
0.000491
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000315
Gnomad4 OTH exome
AF:
0.00291
GnomAD4 genome
AF:
0.00303
AC:
462
AN:
152376
Hom.:
23
Cov.:
33
AF XY:
0.00353
AC XY:
263
AN XY:
74520
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000457
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.0856
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00378
Alfa
AF:
0.000435
Hom.:
0
Bravo
AF:
0.00379
Asia WGS
AF:
0.0160
AC:
55
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Brachydactyly type A1 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxNov 12, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.72
CADD
Benign
4.2
DANN
Benign
0.80

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs76709099; hg19: chr2-219919904; API