chr1-26556705-C-A

Position:

• chr1-26556705-C-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4 BS2

The NM_002953.4(RPS6KA1):​c.968C>A​(p.Thr323Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000479 in 1,461,872 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 Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: RPS6KA1 NM_002953.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.88

Genes affected

RPS6KA1 (HGNC:10430): (ribosomal protein S6 kinase A1) This gene encodes a member of the RSK (ribosomal S6 kinase) family of serine/threonine kinases. This kinase contains 2 nonidentical kinase catalytic domains and phosphorylates various substrates, including members of the mitogen-activated kinase (MAPK) signalling pathway. The activity of this protein has been implicated in controlling cell growth and differentiation. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.3139205).
• BS2: High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RPS6KA1	NM_002953.4	c.968C>A	p.Thr323Asn	missense_variant	12/22	ENST00000374168.7	NP_002944.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RPS6KA1	ENST00000374168.7	c.968C>A	p.Thr323Asn	missense_variant	12/22	1	NM_002953.4	ENSP00000363283	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000479 AC: 7 AN: 1461872 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 727234

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000629

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000312 Hom.: 0

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 10, 2024

The c.995C>A (p.T332N) alteration is located in exon 11 (coding exon 11) of the RPS6KA1 gene. This alteration results from a C to A substitution at nucleotide position 995, causing the threonine (T) at amino acid position 332 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.094	T
BayesDel_noAF	Benign	-0.37
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.18	T;.;.;.;.
Eigen	Uncertain	0.26
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Pathogenic	0.99	D
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.31	T;T;T;T;T
MetaSVM	Benign	-0.88	T
MutationAssessor	Benign	0.88	L;.;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	-2.3	N;N;N;N;N
REVEL	Benign	0.11
Sift	Benign	0.23	T;T;T;T;T
Sift4G	Benign	0.56	T;T;T;T;T
Polyphen		0.91	P;.;.;.;B
Vest4		0.57
MutPred		0.28		Loss of methylation at K328 (P = 0.1084);.;.;.;.;
MVP		0.36
MPC		0.69
ClinPred		0.74	D
GERP RS		5.7
Varity_R		0.54
gMVP		0.73

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: rs2076104758; hg19: chr1-26883196;