rs6058296

Variant names:

• chr20-35681303-G-A
• rs6058296
• NM_021100.5:c.656-432C>T

Your query was ambiguous. Multiple possible variants found:

• chr20-35681303-G-A
• chr20-35681303-G-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_021100.5(NFS1):​c.656-432C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NFS1 NM_021100.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.62
• Publications: 14 publications found

Genes affected

NFS1 (HGNC:15910): (NFS1 cysteine desulfurase) Iron-sulfur clusters are required for the function of many cellular enzymes. The proteins encoded by this gene supply inorganic sulfur to these clusters by removing the sulfur from cysteine, creating alanine in the process. This gene uses alternate in-frame translation initiation sites to generate mitochondrial forms and cytoplasmic/nuclear forms. Selection of the alternative initiation sites is determined by the cytosolic pH. The encoded proteins belong to the class-V family of pyridoxal phosphate-dependent aminotransferases. Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2010]

NFS1 Gene-Disease associations (from GenCC):

• combined oxidative phosphorylation deficiency 52

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• severe neonatal lactic acidosis due to NFS1-ISD11 complex deficiency

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NFS1	NM_021100.5	c.656-432C>T		intron_variant	Intron 6 of 12	ENST00000374092.9	NP_066923.3
NFS1	NM_001198989.2	c.503-432C>T		intron_variant	Intron 5 of 11		NP_001185918.1
NFS1	NR_037570.3	n.842-432C>T		intron_variant	Intron 7 of 13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NFS1	ENST00000374092.9	c.656-432C>T		intron_variant	Intron 6 of 12	1	NM_021100.5	ENSP00000363205.3

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 1850

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.074
DANN	Benign	0.37
PhyloP100		-1.6

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: rs6058296; hg19: chr20-34269225;