rs143815412

chr10-69015876-A-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_Strong BP6 BP7

The NM_015634.4(KIFBP):c.1326A>G(p.Arg442=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00172 in 1,614,154 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.0010 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0018 (5 hom.)
• Consequence: KIFBP NM_015634.4 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:4
• Conservation: PhyloP100: -0.177

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 Likely_benign. Variant got -6 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.57).
• BP6: Variant 10-69015876-A-G is Benign according to our data. Variant chr10-69015876-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 211258.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=4, Uncertain_significance=1}.
• BP7: Synonymous conserved (PhyloP=-0.177 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KIFBP	NM_015634.4	c.1326A>G	p.Arg442=	synonymous_variant	7/7	ENST00000361983.7
KIFBP	XM_017016067.2	c.528A>G	p.Arg176=	synonymous_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KIFBP	ENST00000361983.7	c.1326A>G	p.Arg442=	synonymous_variant	7/7	1	NM_015634.4	P1

Frequencies

GnomAD3 genomes AF: 0.00104 AC: 158 AN: 152152 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000435

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000327

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: 0.00197

Gnomad OTH AF: 0.000478

GnomAD3 exomes AF: 0.000891 AC: 224 AN: 251474 Hom.: 0 AF XY: 0.000949 AC XY: 129 AN XY: 135914

Gnomad AFR exome AF: 0.000185

Gnomad AMR exome AF: 0.000202

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: 0.00186

Gnomad OTH exome AF: 0.000326

GnomAD4 exome AF: 0.00179 AC: 2612 AN: 1461884 Hom.: 5 Cov.: 32 AF XY: 0.00170 AC XY: 1238 AN XY: 727242

Gnomad4 AFR exome AF: 0.000508

Gnomad4 AMR exome AF: 0.000201

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.0000936

Gnomad4 NFE exome AF: 0.00224

Gnomad4 OTH exome AF: 0.00146

GnomAD4 genome AF: 0.00104 AC: 158 AN: 152270 Hom.: 0 Cov.: 32 AF XY: 0.000900 AC XY: 67 AN XY: 74456

Gnomad4 AFR AF: 0.000433

Gnomad4 AMR AF: 0.000327

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00197

Gnomad4 OTH AF: 0.000473

Alfa AF: 0.00166 Hom.: 0

Bravo AF: 0.00108

EpiCase AF: 0.00185

EpiControl AF: 0.00160

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:4

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Benign:3

Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2022	KIFBP: BP4, BP7 -
Likely benign, criteria provided, single submitter	clinical testing	Invitae	Apr 20, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Sep 22, 2020	- -

Goldberg-Shprintzen syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Sep 30, 2015

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.57
Cadd	Benign	6.2
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

Other links and lift over

dbSNP: rs143815412; hg19: chr10-70775632;