chr16-72074296-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_020995.4(HPR):​c.104C>A​(p.Pro35Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,613,726 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

HPR
NM_020995.4 missense

Scores

1
8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.06
Variant links:
Genes affected
HPR (HGNC:5156): (haptoglobin-related protein) This gene encodes a haptoglobin-related protein that binds hemoglobin as efficiently as haptoglobin. Unlike haptoglobin, plasma concentration of this protein is unaffected in patients with sickle cell anemia and extensive intravascular hemolysis, suggesting a difference in binding between haptoglobin-hemoglobin and haptoglobin-related protein-hemoglobin complexes to CD163, the hemoglobin scavenger receptor. This protein may also be a clinically important predictor of recurrence of breast cancer. [provided by RefSeq, Oct 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HPRNM_020995.4 linkuse as main transcriptc.104C>A p.Pro35Gln missense_variant 3/5 ENST00000540303.7 NP_066275.3 P00739-1
HPRXM_024450251.2 linkuse as main transcriptc.122C>A p.Pro41Gln missense_variant 3/5 XP_024306019.1
HPRNM_001384360.1 linkuse as main transcriptc.-257C>A 5_prime_UTR_variant 4/6 NP_001371289.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HPRENST00000540303.7 linkuse as main transcriptc.104C>A p.Pro35Gln missense_variant 3/51 NM_020995.4 ENSP00000441828.2 P00739-1
TXNL4BENST00000562153.5 linkuse as main transcriptc.284+14691G>T intron_variant 4 ENSP00000454635.2 H3BN11

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152136
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000521
AC:
13
AN:
249520
Hom.:
0
AF XY:
0.0000591
AC XY:
8
AN XY:
135372
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000377
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000109
AC:
16
AN:
1461590
Hom.:
0
Cov.:
32
AF XY:
0.0000110
AC XY:
8
AN XY:
727130
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000335
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152136
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74308
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.0000248
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 28, 2021The c.104C>A (p.P35Q) alteration is located in exon 3 (coding exon 3) of the HPR gene. This alteration results from a C to A substitution at nucleotide position 104, causing the proline (P) at amino acid position 35 to be replaced by a glutamine (Q). 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
0.11
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Uncertain
-0.080
CADD
Benign
21
DANN
Benign
0.63
DEOGEN2
Benign
0.20
T;.
Eigen
Benign
0.081
Eigen_PC
Benign
-0.10
FATHMM_MKL
Benign
0.70
D
LIST_S2
Uncertain
0.88
D;D
M_CAP
Uncertain
0.091
D
MetaRNN
Uncertain
0.53
D;D
MetaSVM
Uncertain
0.36
D
MutationAssessor
Uncertain
2.8
M;.
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.9
N;.
REVEL
Uncertain
0.43
Sift
Uncertain
0.0020
D;.
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.99
D;.
Vest4
0.44
MutPred
0.29
Loss of catalytic residue at K36 (P = 0.0969);Loss of catalytic residue at K36 (P = 0.0969);
MVP
0.83
MPC
0.46
ClinPred
0.73
D
GERP RS
2.4
Varity_R
0.11
gMVP
0.51

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs773105549; hg19: chr16-72108195; API