chr14-94614436-T-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_001085.5(SERPINA3):​c.-6T>C variant causes a splice region, 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000231 in 1,613,122 control chromosomes in the GnomAD database, including 1 homozygotes. 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 0.0013 ( 1 hom., cov: 31)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

SERPINA3
NM_001085.5 splice_region, 5_prime_UTR

Scores

2
Splicing: ADA: 0.00002784
2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.511
Variant links:
Genes affected
SERPINA3 (HGNC:16): (serpin family A member 3) The protein encoded by this gene is a member of the serpin family of proteins, a group of proteins that inhibit serine proteases. This gene is one in a cluster of serpin genes located on the q arm of chromosome 14. Polymorphisms in this protein appear to be tissue specific and influence protease targeting. Variations in this protein's sequence have been implicated in Alzheimer's disease, and deficiency of this protein has been associated with liver disease. Mutations have been identified in patients with Parkinson disease and chronic obstructive pulmonary disease. [provided by RefSeq, Jun 2020]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BP6
Variant 14-94614436-T-C is Benign according to our data. Variant chr14-94614436-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 3039814.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SERPINA3NM_001085.5 linkuse as main transcriptc.-6T>C splice_region_variant, 5_prime_UTR_variant 2/5 ENST00000393078.5
SERPINA3NM_001384672.1 linkuse as main transcriptc.-6T>C splice_region_variant, 5_prime_UTR_variant 2/5
SERPINA3NM_001384673.1 linkuse as main transcriptc.-6T>C splice_region_variant, 5_prime_UTR_variant 3/6
SERPINA3NM_001384674.1 linkuse as main transcriptc.-6T>C splice_region_variant, 5_prime_UTR_variant 3/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SERPINA3ENST00000393078.5 linkuse as main transcriptc.-6T>C splice_region_variant, 5_prime_UTR_variant 2/51 NM_001085.5 P1P01011-1

Frequencies

GnomAD3 genomes
AF:
0.00129
AC:
196
AN:
151976
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00457
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.00192
GnomAD3 exomes
AF:
0.000284
AC:
71
AN:
249840
Hom.:
0
AF XY:
0.000185
AC XY:
25
AN XY:
135090
show subpopulations
Gnomad AFR exome
AF:
0.00415
Gnomad AMR exome
AF:
0.0000290
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:
0.0000177
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000120
AC:
176
AN:
1461032
Hom.:
0
Cov.:
29
AF XY:
0.000110
AC XY:
80
AN XY:
726834
show subpopulations
Gnomad4 AFR exome
AF:
0.00457
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.00130
AC:
197
AN:
152090
Hom.:
1
Cov.:
31
AF XY:
0.00117
AC XY:
87
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.00458
Gnomad4 AMR
AF:
0.000196
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:
0.00190
Alfa
AF:
0.000331
Hom.:
0
Bravo
AF:
0.00133
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

SERPINA3-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesSep 17, 2019This 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
-0.86
CADD
Benign
0.39
DANN
Benign
0.55
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000028
dbscSNV1_RF
Benign
0.0
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: rs144870571; hg19: chr14-95080773; API