chr20-34268987-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001672.3(ASIP):​c.223-4G>A variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000937 in 1,600,484 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000076 ( 0 hom. )

Consequence

ASIP
NM_001672.3 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00003649
2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.119
Variant links:
Genes affected
ASIP (HGNC:745): (agouti signaling protein) In mice, the agouti gene encodes a paracrine signaling molecule that causes hair follicle melanocytes to synthesize pheomelanin, a yellow pigment, instead of the black or brown pigment, eumelanin. Pleiotropic effects of constitutive expression of the mouse gene include adult-onset obesity, increased tumor susceptibility, and premature infertility. This gene is highly similar to the mouse gene and encodes a secreted protein that may (1) affect the quality of hair pigmentation, (2) act as a pharmacological antagonist of alpha-melanocyte-stimulating hormone, (3) play a role in neuroendocrine aspects of melanocortin action, and (4) have a functional role in regulating lipid metabolism in adipocytes. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 20-34268987-G-A is Benign according to our data. Variant chr20-34268987-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3352471.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High AC in GnomAdExome4 at 11 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ASIPNM_001672.3 linkuse as main transcriptc.223-4G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000374954.4 NP_001663.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ASIPENST00000374954.4 linkuse as main transcriptc.223-4G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_001672.3 ENSP00000364092 P1
ENST00000512005.1 linkuse as main transcriptn.147+12040C>T intron_variant, non_coding_transcript_variant 3
ASIPENST00000568305.5 linkuse as main transcriptc.223-4G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 5 ENSP00000454804 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152162
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000227
AC:
5
AN:
220676
Hom.:
0
AF XY:
0.00000826
AC XY:
1
AN XY:
121062
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000152
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000760
AC:
11
AN:
1448322
Hom.:
0
Cov.:
31
AF XY:
0.00000278
AC XY:
2
AN XY:
719280
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000184
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000255
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000335
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152162
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000847
Hom.:
0
Bravo
AF:
0.0000756

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

ASIP-related condition Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesSep 04, 2024This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
7.6
DANN
Benign
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000036
dbscSNV1_RF
Benign
0.0020
SpliceAI score (max)
0.060
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: rs766471312; hg19: chr20-32856793; API