chr10-73383327-G-A

Variant names:

• chr10-73383327-G-A
• rs775887772
• NM_001156.5:c.766C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001156.5(ANXA7):​c.766C>T​(p.Arg256Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,460,760 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R256H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: ANXA7 NM_001156.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.954
• Publications: 0 publications found

Genes affected

ANXA7 (HGNC:545): (annexin A7) Annexin VII is a member of the annexin family of calcium-dependent phospholipid binding proteins.The Annexin VII gene contains 14 exons and spans approximately 34 kb of DNA. An alternatively spliced cassette exon results in two mRNA transcripts of 2.0 and 2.4 kb which are predicted to generate two protein isoforms differing in their N-terminal domain. The alternative splicing event is tissue specific and the mRNA containing the cassette exon is prevalent in brain, heart and skeletal muscle. The transcripts also differ in their 3'-non coding regions by the use of two alternative poly(A) signals. Annexin VII encodes a protein with a molecular weight of approximately 51 kDa with a unique, highly hydrophobic N-terminal domain of 167 amino acids and a conserved C-terminal region of 299 amino acids. The latter domain is composed of alternating hydrophobic and hydrophilic segments. Structural analysis of the protein suggests that Annexin VII is a membrane binding protein with diverse properties, including voltage-sensitive calcium channel activity, ion selectivity and membrane fusion. [provided by RefSeq, Jul 2008]

ENSG00000233144 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.29072896).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001156.5. 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
	ANXA7	NM_001156.5	MANE Select	c.766C>T	p.Arg256Cys	missense	Exon 9 of 13	NP_001147.1	P20073-2
	ANXA7	NM_004034.4		c.832C>T	p.Arg278Cys	missense	Exon 10 of 14	NP_004025.1	P20073-1
	ANXA7	NM_001320880.2		c.712C>T	p.Arg238Cys	missense	Exon 9 of 13	NP_001307809.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANXA7	ENST00000372921.10	TSL:1 MANE Select	c.766C>T	p.Arg256Cys	missense	Exon 9 of 13	ENSP00000362012.4	P20073-2
	ANXA7	ENST00000372919.8	TSL:1	c.832C>T	p.Arg278Cys	missense	Exon 10 of 14	ENSP00000362010.4	P20073-1
	ANXA7	ENST00000961271.1		c.856C>T	p.Arg286Cys	missense	Exon 10 of 14	ENSP00000631330.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000120 AC: 3 AN: 249840 AF XY: 0.0000148

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000291

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000177

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1460760 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 726564

African (AFR) AF: 0.00 AC: 0 AN: 33462

American (AMR) AF: 0.0000448 AC: 2 AN: 44634

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26114

East Asian (EAS) AF: 0.00 AC: 0 AN: 39664

South Asian (SAS) AF: 0.00 AC: 0 AN: 86136

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53374

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111262

Other (OTH) AF: 0.00 AC: 0 AN: 60352

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.41
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.30	T
Eigen	Benign	-0.051
Eigen_PC	Benign	0.082
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.29	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.2	M
PhyloP100		0.95
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.063
Sift	Benign	0.11	T
Sift4G	Benign	0.082	T
Polyphen		0.14	B
Vest4		0.40
MutPred		0.42		Loss of disorder (P = 0.0399)
MVP		0.70
MPC		0.061
ClinPred		0.58	D
GERP RS		3.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.11
Mutation Taster		=82/18	polymorphism

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: rs775887772; hg19: chr10-75143085; COSMIC: COSV65824302; COSMIC: COSV65824302;