rs764577574

Variant names:

• chr12-55696359-C-A
• rs764577574
• NM_002206.3:c.1811G>T

Your query was ambiguous. Multiple possible variants found:

• chr12-55696359-C-A
• chr12-55696359-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_002206.3(ITGA7):​c.1811G>T​(p.Arg604Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000278 in 1,438,764 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R604Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000028 (0 hom.)
• Consequence: ITGA7 NM_002206.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.58
• Publications: 0 publications found

Genes affected

ITGA7 (HGNC:6143): (integrin subunit alpha 7) The protein encoded by this gene belongs to the integrin alpha chain family. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. They mediate a wide spectrum of cell-cell and cell-matrix interactions, and thus play a role in cell migration, morphologic development, differentiation, and metastasis. This protein functions as a receptor for the basement membrane protein laminin-1. It is mainly expressed in skeletal and cardiac muscles and may be involved in differentiation and migration processes during myogenesis. Defects in this gene are associated with congenital myopathy. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Feb 2009]

ITGA7 Gene-Disease associations (from GenCC):

• congenital muscular dystrophy due to integrin alpha-7 deficiency

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
• congenital fiber-type disproportion myopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002206.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ITGA7	NM_002206.3	MANE Select	c.1811G>T	p.Arg604Leu	missense	Exon 13 of 25	NP_002197.2
	ITGA7	NM_001410977.1		c.1943G>T	p.Arg648Leu	missense	Exon 14 of 26	NP_001397906.1
	ITGA7	NM_001144996.2		c.1823G>T	p.Arg608Leu	missense	Exon 13 of 25	NP_001138468.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ITGA7	ENST00000257879.11	TSL:1 MANE Select	c.1811G>T	p.Arg604Leu	missense	Exon 13 of 25	ENSP00000257879.7
	ITGA7	ENST00000553804.6	TSL:1	c.1823G>T	p.Arg608Leu	missense	Exon 13 of 25	ENSP00000452120.1
	ITGA7	ENST00000555728.5	TSL:5	c.1943G>T	p.Arg648Leu	missense	Exon 14 of 26	ENSP00000452387.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000278 AC: 4 AN: 1438764 Hom.: 0 Cov.: 34 AF XY: 0.00000280 AC XY: 2 AN XY: 713512

African (AFR) AF: 0.00 AC: 0 AN: 33204

American (AMR) AF: 0.00 AC: 0 AN: 41888

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25630

East Asian (EAS) AF: 0.00 AC: 0 AN: 38976

South Asian (SAS) AF: 0.00 AC: 0 AN: 82902

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51554

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5742

European-Non Finnish (NFE) AF: 0.00000364 AC: 4 AN: 1099462

Other (OTH) AF: 0.00 AC: 0 AN: 59406

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.035	T
BayesDel_noAF	Benign	-0.29
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.037	T
Eigen	Uncertain	0.25
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Uncertain	0.93	D
M_CAP	Uncertain	0.12	D
MetaRNN	Uncertain	0.58	D
MetaSVM	Benign	-0.56	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		2.6
PrimateAI	Uncertain	0.53	T
PROVEAN	Pathogenic	-5.3	D
REVEL	Benign	0.23
Sift	Uncertain	0.0080	D
Sift4G	Uncertain	0.016	D
Polyphen		0.74	P
Vest4		0.54
MutPred		0.58		Loss of solvent accessibility (P = 0.0052)
MVP		0.61
MPC		0.64
ClinPred		0.99	D
GERP RS		4.9
Varity_R		0.51
gMVP		0.51
Mutation Taster		=50/50

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs764577574; hg19: chr12-56090143;