NM_004134.7:c.1871G>C

Variant names:

• chr5-138556543-C-G
• rs1750524649
• NM_004134.7:c.1871G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004134.7(HSPA9):​c.1871G>C​(p.Arg624Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,776 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. 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. R624K) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: HSPA9 NM_004134.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.86
• Publications: 0 publications found

Genes affected

HSPA9 (HGNC:5244): (heat shock protein family A (Hsp70) member 9) This gene encodes a member of the heat shock protein 70 gene family. The encoded protein is primarily localized to the mitochondria but is also found in the endoplasmic reticulum, plasma membrane and cytoplasmic vesicles. This protein is a heat-shock cognate protein. This protein plays a role in cell proliferation, stress response and maintenance of the mitochondria. A pseudogene of this gene is found on chromosome 2.[provided by RefSeq, May 2010]

HSPA9 Gene-Disease associations (from GenCC):

• autosomal dominant sideroblastic anemia

  Inheritance: AD, AR Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• even-plus syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
• autosomal recessive sideroblastic anemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000299264 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15249273).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004134.7. 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
	HSPA9	NM_004134.7	MANE Select	c.1871G>C	p.Arg624Thr	missense	Exon 16 of 17	NP_004125.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HSPA9	ENST00000297185.9	TSL:1 MANE Select	c.1871G>C	p.Arg624Thr	missense	Exon 16 of 17	ENSP00000297185.3	P38646
	HSPA9	ENST00000946847.1		c.2054G>C	p.Arg685Thr	missense	Exon 17 of 18	ENSP00000616906.1
	HSPA9	ENST00000936338.1		c.1889G>C	p.Arg630Thr	missense	Exon 16 of 17	ENSP00000606397.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461776 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 727194

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53354

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111976

Other (OTH) AF: 0.00 AC: 0 AN: 60394

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	-0.15	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	23
DANN	Benign	0.95
DEOGEN2	Benign	0.10	T
Eigen	Benign	-0.060
Eigen_PC	Benign	0.17
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-0.43	T
MutationAssessor	Benign	-0.40	N
PhyloP100		4.9
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.11
Sift	Benign	0.15	T
Sift4G	Benign	0.20	T
Polyphen		0.011	B
Vest4		0.48
MutPred		0.39		Loss of MoRF binding (P = 0.0138)
MVP		0.32
MPC		0.60
ClinPred		0.62	D
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.18
gMVP		0.39
Mutation Taster		=77/23	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: rs1750524649; hg19: chr5-137892232;