rs77354753

Variant names:

• chr4-73415045-G-A
• rs77354753
• NM_000477.7:c.1069G>A

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_000477.7(ALB):​c.1069G>A​(p.Glu357Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,764 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as other (no stars).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ALB NM_000477.7 missense
• Clinical Significance: other no assertion criteria provided O:1
• Conservation: PhyloP100: 5.23
• Publications: 4 publications found

Genes affected

ALB (HGNC:399): (albumin) This gene encodes the most abundant protein in human blood. This protein functions in the regulation of blood plasma colloid osmotic pressure and acts as a carrier protein for a wide range of endogenous molecules including hormones, fatty acids, and metabolites, as well as exogenous drugs. Additionally, this protein exhibits an esterase-like activity with broad substrate specificity. The encoded preproprotein is proteolytically processed to generate the mature protein. A peptide derived from this protein, EPI-X4, is an endogenous inhibitor of the CXCR4 chemokine receptor. [provided by RefSeq, Jul 2016]

ALB Gene-Disease associations (from GenCC):

• congenital analbuminemia

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
• hyperthyroxinemia, familial dysalbuminemic

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.959

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000477.7. 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
	ALB	NM_000477.7	MANE Select	c.1069G>A	p.Glu357Lys	missense	Exon 9 of 15	NP_000468.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ALB	ENST00000295897.9	TSL:1 MANE Select	c.1069G>A	p.Glu357Lys	missense	Exon 9 of 15	ENSP00000295897.4
	ALB	ENST00000415165.6	TSL:1	c.493G>A	p.Glu165Lys	missense	Exon 5 of 11	ENSP00000401820.2
	ALB	ENST00000509063.5	TSL:5	c.1069G>A	p.Glu357Lys	missense	Exon 9 of 14	ENSP00000422784.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461764 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727202

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44710

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

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

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53400

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111934

Other (OTH) AF: 0.00 AC: 0 AN: 60392

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: other

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
-	-	-	ALBUMIN SONDRIA (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.81
BayesDel_addAF	Pathogenic	0.23	D
BayesDel_noAF	Uncertain	0.090
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Benign	0.37	T
Eigen	Pathogenic	0.87
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.075	D
MetaRNN	Pathogenic	0.96	D
MetaSVM	Uncertain	0.50	D
MutationAssessor	Pathogenic	3.5	M
PhyloP100		5.2
PrimateAI	Uncertain	0.54	T
PROVEAN	Uncertain	-3.4	D
REVEL	Pathogenic	0.66
Sift	Uncertain	0.0040	D
Sift4G	Uncertain	0.0080	D
Polyphen		1.0	D
Vest4		0.85
MutPred		0.89		Gain of methylation at E357 (P = 0.0123)
MVP		0.88
MPC		0.81
ClinPred		0.99	D
GERP RS		5.8
Varity_R		0.87
gMVP		0.63
Mutation Taster		=60/40	polymorphism

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: rs77354753; hg19: chr4-74280762;