chr20-3227562-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001174089.2(SLC4A11):​c.*225C>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 0.00386 in 592,034 control chromosomes in the GnomAD database, including 42 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.010 ( 28 hom., cov: 33)
Exomes 𝑓: 0.0016 ( 14 hom. )

Consequence

SLC4A11
NM_001174089.2 3_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.535
Variant links:
Genes affected
SLC4A11 (HGNC:16438): (solute carrier family 4 member 11) This gene encodes a voltage-regulated, electrogenic sodium-coupled borate cotransporter that is essential for borate homeostasis, cell growth and cell proliferation. Mutations in this gene have been associated with a number of endothelial corneal dystrophies including recessive corneal endothelial dystrophy 2, corneal dystrophy and perceptive deafness, and Fuchs endothelial corneal dystrophy. Multiple transcript variants encoding different isoforms have been described. [provided by RefSeq, Mar 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 20-3227562-G-A is Benign according to our data. Variant chr20-3227562-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 338230.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0104 (1587/152264) while in subpopulation AFR AF= 0.0362 (1505/41544). AF 95% confidence interval is 0.0347. There are 28 homozygotes in gnomad4. There are 728 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 1587 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC4A11NM_001174089.2 linkuse as main transcriptc.*225C>T 3_prime_UTR_variant 20/20 ENST00000642402.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC4A11ENST00000642402.1 linkuse as main transcriptc.*225C>T 3_prime_UTR_variant 20/20 NM_001174089.2 P2Q8NBS3-3

Frequencies

GnomAD3 genomes
AF:
0.0104
AC:
1586
AN:
152146
Hom.:
28
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0363
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00255
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000279
Gnomad OTH
AF:
0.00813
GnomAD4 exome
AF:
0.00159
AC:
698
AN:
439770
Hom.:
14
Cov.:
4
AF XY:
0.00133
AC XY:
309
AN XY:
231822
show subpopulations
Gnomad4 AFR exome
AF:
0.0397
Gnomad4 AMR exome
AF:
0.00198
Gnomad4 ASJ exome
AF:
0.00139
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000213
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000246
Gnomad4 OTH exome
AF:
0.00243
GnomAD4 genome
AF:
0.0104
AC:
1587
AN:
152264
Hom.:
28
Cov.:
33
AF XY:
0.00978
AC XY:
728
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0362
Gnomad4 AMR
AF:
0.00255
Gnomad4 ASJ
AF:
0.00144
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000279
Gnomad4 OTH
AF:
0.00804
Alfa
AF:
0.00598
Hom.:
0
Bravo
AF:
0.0119
Asia WGS
AF:
0.00462
AC:
16
AN:
3478

ClinVar

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

Submissions by phenotype

Corneal dystrophy Benign:1
Likely 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
not provided Benign:1
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
7.7
DANN
Benign
0.67

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: rs77978636; hg19: chr20-3208208; API