rs754822264

Variant names:

• chr8-144511440-C-G
• rs754822264
• NM_004260.4:c.3618G>C

Your query was ambiguous. Multiple possible variants found:

• chr8-144511440-C-G
• chr8-144511440-C-T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_004260.4(RECQL4):​c.3618G>C​(p.Val1206Val) variant causes a synonymous 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. Synonymous variant affecting the same amino acid position (i.e. V1206V) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 34)
• Consequence: RECQL4 NM_004260.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0530
• Publications: 0 publications found

Genes affected

RECQL4 (HGNC:9949): (RecQ like helicase 4) The protein encoded by this gene is a DNA helicase that belongs to the RecQ helicase family. DNA helicases unwind double-stranded DNA into single-stranded DNAs and may modulate chromosome segregation. This gene is predominantly expressed in thymus and testis. Mutations in this gene are associated with Rothmund-Thomson, RAPADILINO and Baller-Gerold syndromes. [provided by RefSeq, Jan 2010]

SLC33A2 (HGNC:25157): (major facilitator superfamily domain containing 3) Predicted to enable solute:proton symporter activity. Predicted to be involved in proton transmembrane transport. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BP7: Synonymous conserved (PhyloP=-0.053 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004260.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RECQL4	NM_004260.4	MANE Select	c.3618G>C	p.Val1206Val	synonymous	Exon 21 of 21	NP_004251.4	O94761
	RECQL4	NM_001413019.1		c.3693G>C	p.Val1231Val	synonymous	Exon 20 of 20	NP_001399948.1
	RECQL4	NM_001413036.1		c.3627G>C	p.Val1209Val	synonymous	Exon 21 of 21	NP_001399965.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RECQL4	ENST00000617875.6	TSL:1 MANE Select	c.3618G>C	p.Val1206Val	synonymous	Exon 21 of 21	ENSP00000482313.2	O94761
	RECQL4	ENST00000621189.4	TSL:1	c.2547G>C	p.Val849Val	synonymous	Exon 20 of 20	ENSP00000483145.1	A0A087X072
	RECQL4	ENST00000971710.1		c.3525G>C	p.Val1175Val	synonymous	Exon 21 of 21	ENSP00000641769.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	0.28
DANN	Benign	0.65
PhyloP100		-0.053

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: rs754822264; hg19: chr8-145736823;