rs16926021

Variant names:

• chr10-69015573-G-A
• rs16926021
• NM_015634.4:c.1023G>A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BA1

The NM_015634.4(KIFBP):​c.1023G>A​(p.Gln341Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0103 in 1,613,426 control chromosomes in the GnomAD database, including 1,459 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.055 (761 hom., cov: 32)
  • Exomes 𝑓: 0.0056 (698 hom.)
• Consequence: KIFBP NM_015634.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: 0.113

Genes affected

KIFBP (HGNC:23419): (kinesin family binding protein) This gene encodes a kinesin family member 1 binding protein that is characterized by two tetratrico peptide repeats. The encoded protein localizes to the mitochondria and may be involved in regulating transport of the mitochondria. Mutations in this gene are associated with Goldberg-Shprintzen megacolon syndrome. [provided by RefSeq, Mar 2010]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BP6: Variant 10-69015573-G-A is Benign according to our data. Variant chr10-69015573-G-A is described in ClinVar as [Benign]. Clinvar id is 158692.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr10-69015573-G-A is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=0.113 with no splicing effect.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.187 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KIFBP	NM_015634.4	c.1023G>A	p.Gln341Gln	synonymous_variant	Exon 7 of 7	ENST00000361983.7	NP_056449.1
KIFBP	XM_017016067.2	c.225G>A	p.Gln75Gln	synonymous_variant	Exon 4 of 4		XP_016871556.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KIFBP	ENST00000361983.7	c.1023G>A	p.Gln341Gln	synonymous_variant	Exon 7 of 7	1	NM_015634.4	ENSP00000354848.4

Frequencies

GnomAD3 genomes AF: 0.0547 AC: 8310 AN: 151916 Hom.: 753 Cov.: 32

Gnomad AFR AF: 0.190

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0218

Gnomad ASJ AF: 0.00231

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000622

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000574

Gnomad OTH AF: 0.0336

GnomAD3 exomes AF: 0.0140 AC: 3519 AN: 250868 Hom.: 292 AF XY: 0.0106 AC XY: 1436 AN XY: 135686

Gnomad AFR exome AF: 0.190

Gnomad AMR exome AF: 0.00894

Gnomad ASJ exome AF: 0.00308

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000229

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000511

Gnomad OTH exome AF: 0.00836

GnomAD4 exome AF: 0.00562 AC: 8217 AN: 1461392 Hom.: 698 Cov.: 32 AF XY: 0.00487 AC XY: 3540 AN XY: 727012

Gnomad4 AFR exome AF: 0.195

Gnomad4 AMR exome AF: 0.00982

Gnomad4 ASJ exome AF: 0.00291

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000313

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000268

Gnomad4 OTH exome AF: 0.0135

GnomAD4 genome AF: 0.0549 AC: 8350 AN: 152034 Hom.: 761 Cov.: 32 AF XY: 0.0526 AC XY: 3909 AN XY: 74324

Gnomad4 AFR AF: 0.191

Gnomad4 AMR AF: 0.0217

Gnomad4 ASJ AF: 0.00231

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000623

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000574

Gnomad4 OTH AF: 0.0333

Alfa AF: 0.0297 Hom.: 162

Bravo AF: 0.0622

Asia WGS AF: 0.0110 AC: 37 AN: 3478

EpiCase AF: 0.000600

EpiControl AF: 0.000830

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:2

Mar 02, 2016

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Feb 08, 2013

Genetic Services Laboratory, University of Chicago

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Goldberg-Shprintzen syndrome Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This 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

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	1.1
DANN	Benign	0.46

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

Other links and lift over

dbSNP: rs16926021; hg19: chr10-70775329;