2-11192631-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2 PP2 BP4

The NM_004850.5(ROCK2):c.3769T>G(p.Cys1257Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,306 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: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: ROCK2 NM_004850.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.43

Genes affected

ROCK2 (HGNC:10252): (Rho associated coiled-coil containing protein kinase 2) The protein encoded by this gene is a serine/threonine kinase that regulates cytokinesis, smooth muscle contraction, the formation of actin stress fibers and focal adhesions, and the activation of the c-fos serum response element. This protein, which is an isozyme of ROCK1 is a target for the small GTPase Rho. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, ROCK2
• BP4: Computational evidence support a benign effect (MetaRNN=0.28872553).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ROCK2	NM_004850.5	c.3769T>G	p.Cys1257Gly	missense_variant	31/33	ENST00000315872.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ROCK2	ENST00000315872.11	c.3769T>G	p.Cys1257Gly	missense_variant	31/33	1	NM_004850.5	P2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152188 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152306 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74482

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ExAC AF: 0.00000828 AC: 1

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

Jul 30, 2023

The c.3769T>G (p.C1257G) alteration is located in exon 31 (coding exon 31) of the ROCK2 gene. This alteration results from a T to G substitution at nucleotide position 3769, causing the cysteine (C) at amino acid position 1257 to be replaced by a glycine (G). 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	0.18
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	0.040
Cadd	Uncertain	24
Dann	Benign	0.91
DEOGEN2	Benign	0.077	T;.;.
Eigen	Benign	-0.082
Eigen_PC	Benign	0.11
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.90	D;D;D
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.29	T;T;T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.1	L;.;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Pathogenic	0.89	D
PROVEAN	Benign	-1.1	N;.;N
REVEL	Benign	0.18
Sift	Benign	0.42	T;.;T
Sift4G	Benign	0.39	T;T;T
Polyphen		0.29	B;.;.
Vest4		0.62
MutPred		0.56		Gain of disorder (P = 0.003);.;.;
MVP		0.69
MPC		1.2
ClinPred		0.21	T
GERP RS		5.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.33
gMVP		0.60

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: rs552881592; hg19: chr2-11332757;