chr14-77443177-G-A

Variant names:

• chr14-77443177-G-A
• rs112062894
• NM_001193315.2:c.598-25C>T

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_Strong BP6_Moderate BS1

The NM_001193315.2(VIPAS39):​c.598-25C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00025 in 1,614,098 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). There are indicators that this mutation may affect the branch point..

• Frequency:
  • Genomes: 𝑓 0.0012 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00015 (0 hom.)
• Consequence: VIPAS39 NM_001193315.2 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.223
• Publications: 0 publications found

Genes affected

VIPAS39 (HGNC:20347): (VPS33B interacting protein, apical-basolateral polarity regulator, spe-39 homolog) Involved in endosome to lysosome transport and intracellular protein transport. Acts upstream of or within collagen metabolic process and peptidyl-lysine hydroxylation. Located in Golgi apparatus and endosome. Implicated in arthrogryposis, renal dysfunction, and cholestasis 2. [provided by Alliance of Genome Resources, Apr 2022]

VIPAS39 Gene-Disease associations (from GenCC):

• arthrogryposis, renal dysfunction, and cholestasis 2

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
• arthrogryposis-renal dysfunction-cholestasis syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -10 ACMG points.

• BP4: This position, referring to a specific DNA site, is a probable branch point but is likely benign (scored 0 / 10, using the threshold of <=3). The score ranges from 0 to 10, with values ≤3 considered benign and >5 classified as pathogenic. Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BP6: Variant 14-77443177-G-A is Benign according to our data. Variant chr14-77443177-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 261490.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00119 (181/152300) while in subpopulation AFR AF = 0.00423 (176/41574). AF 95% confidence interval is 0.00372. There are 0 homozygotes in GnomAd4. There are 99 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001193315.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VIPAS39	NM_001193315.2	MANE Select	c.598-25C>T		intron	N/A	NP_001180244.1
	VIPAS39	NM_001193314.2		c.598-25C>T		intron	N/A	NP_001180243.1
	VIPAS39	NM_001193317.2		c.598-25C>T		intron	N/A	NP_001180246.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VIPAS39	ENST00000557658.6	TSL:1 MANE Select	c.598-25C>T		intron	N/A	ENSP00000452191.1
	VIPAS39	ENST00000343765.6	TSL:1	c.598-25C>T		intron	N/A	ENSP00000339122.2
	VIPAS39	ENST00000556412.4	TSL:2	c.676-25C>T		intron	N/A	ENSP00000451857.1

Frequencies

GnomAD3 genomes AF: 0.00115 AC: 175 AN: 152182 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00410

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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: 0.0000441

Gnomad OTH AF: 0.000479

GnomAD2 exomes AF: 0.000279 AC: 70 AN: 250606 AF XY: 0.000236

Gnomad AFR exome AF: 0.00365

Gnomad AMR exome AF: 0.000231

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000177

Gnomad OTH exome AF: 0.000164

GnomAD4 exome AF: 0.000152 AC: 222 AN: 1461798 Hom.: 0 Cov.: 31 AF XY: 0.000131 AC XY: 95 AN XY: 727206

African (AFR) AF: 0.00487 AC: 163 AN: 33472

American (AMR) AF: 0.000291 AC: 13 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53382

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5768

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1111974

Other (OTH) AF: 0.000662 AC: 40 AN: 60390

GnomAD4 genome AF: 0.00119 AC: 181 AN: 152300 Hom.: 0 Cov.: 32 AF XY: 0.00133 AC XY: 99 AN XY: 74456

African (AFR) AF: 0.00423 AC: 176 AN: 41574

American (AMR) AF: 0.0000654 AC: 1 AN: 15296

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4818

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10608

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000441 AC: 3 AN: 68038

Other (OTH) AF: 0.000474 AC: 1 AN: 2108

Alfa AF: 0.000598 Hom.: 0

Bravo AF: 0.00113

Asia WGS AF: 0.00202 AC: 7 AN: 3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	2.8
DANN	Benign	0.59
PhyloP100		0.22
BranchPoint Hunter		0.0

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

Other links and lift over

dbSNP: rs112062894; hg19: chr14-77909520;