rs9358856

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_017640.6(CARMIL1):​c.229G>A​(p.Val77Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.145 in 1,610,102 control chromosomes in the GnomAD database, including 17,584 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/19 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 nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in UniProt.

Frequency

Genomes: 𝑓 0.14 ( 1522 hom., cov: 31)
Exomes 𝑓: 0.15 ( 16062 hom. )

Consequence

CARMIL1
NM_017640.6 missense

Scores

17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.281
Variant links:
Genes affected
CARMIL1 (HGNC:21581): (capping protein regulator and myosin 1 linker 1) Involved in several processes, including actin filament network formation; plasma membrane bounded cell projection organization; and positive regulation of cellular component organization. Located in several cellular components, including lamellipodium; macropinosome; and nuclear speck. [provided by Alliance of Genome Resources, Apr 2022]
CMAHP (HGNC:2098): (cytidine monophospho-N-acetylneuraminic acid hydroxylase, pseudogene) Sialic acids are terminal components of the carbohydrate chains of glycoconjugates involved in ligand-receptor, cell-cell, and cell-pathogen interactions. The two most common forms of sialic acid found in mammalian cells are N-acetylneuraminic acid (Neu5Ac) and its hydroxylated derivative, N-glycolylneuraminic acid (Neu5Gc). Studies of sialic acid distribution show that Neu5Gc is not detectable in normal human tissues although it was an abundant sialic acid in other mammals. Neu5Gc is, in actuality, immunogenic in humans. The absense of Neu5Gc in humans is due to a deletion within the human gene CMAH encoding cytidine monophosphate-N-acetylneuraminic acid hydroxylase, an enzyme responsible for Neu5Gc biosynthesis. Sequences encoding the mouse, pig, and chimpanzee hydroxylase enzymes were obtained by cDNA cloning and found to be highly homologous. However, the homologous human cDNA differs from these cDNAs by a 92-bp deletion in the 5' region. This deletion, corresponding to exon 6 of the mouse hydroxylase gene, causes a frameshift mutation and premature termination of the polypeptide chain in human. It seems unlikely that the truncated human hydroxylase mRNA encodes for an active enzyme explaining why Neu5Gc is undetectable in normal human tissues. Human genomic DNA also shows evidence of this deletion which does not occur in the genomes of African great apes. Nonetheless, the CMAH gene maps to 6p21.32 in humans and great apes indicating that mutation of the CMAH gene occurred following human divergence from chimpanzees and bonobos. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.004101813).
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.213 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CARMIL1NM_017640.6 linkc.229G>A p.Val77Ile missense_variant 4/37 ENST00000329474.7 NP_060110.4 Q5VZK9-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CARMIL1ENST00000329474.7 linkc.229G>A p.Val77Ile missense_variant 4/371 NM_017640.6 ENSP00000331983.6 Q5VZK9-1

Frequencies

GnomAD3 genomes
AF:
0.137
AC:
20642
AN:
151170
Hom.:
1522
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0854
Gnomad AMI
AF:
0.241
Gnomad AMR
AF:
0.170
Gnomad ASJ
AF:
0.150
Gnomad EAS
AF:
0.224
Gnomad SAS
AF:
0.182
Gnomad FIN
AF:
0.186
Gnomad MID
AF:
0.130
Gnomad NFE
AF:
0.140
Gnomad OTH
AF:
0.141
GnomAD3 exomes
AF:
0.162
AC:
40231
AN:
248160
Hom.:
3525
AF XY:
0.163
AC XY:
21893
AN XY:
134664
show subpopulations
Gnomad AFR exome
AF:
0.0855
Gnomad AMR exome
AF:
0.197
Gnomad ASJ exome
AF:
0.152
Gnomad EAS exome
AF:
0.240
Gnomad SAS exome
AF:
0.176
Gnomad FIN exome
AF:
0.185
Gnomad NFE exome
AF:
0.143
Gnomad OTH exome
AF:
0.156
GnomAD4 exome
AF:
0.145
AC:
212028
AN:
1458814
Hom.:
16062
Cov.:
31
AF XY:
0.146
AC XY:
105941
AN XY:
725690
show subpopulations
Gnomad4 AFR exome
AF:
0.0844
Gnomad4 AMR exome
AF:
0.189
Gnomad4 ASJ exome
AF:
0.147
Gnomad4 EAS exome
AF:
0.220
Gnomad4 SAS exome
AF:
0.174
Gnomad4 FIN exome
AF:
0.183
Gnomad4 NFE exome
AF:
0.138
Gnomad4 OTH exome
AF:
0.150
GnomAD4 genome
AF:
0.136
AC:
20636
AN:
151288
Hom.:
1522
Cov.:
31
AF XY:
0.141
AC XY:
10431
AN XY:
73836
show subpopulations
Gnomad4 AFR
AF:
0.0853
Gnomad4 AMR
AF:
0.170
Gnomad4 ASJ
AF:
0.150
Gnomad4 EAS
AF:
0.224
Gnomad4 SAS
AF:
0.181
Gnomad4 FIN
AF:
0.186
Gnomad4 NFE
AF:
0.140
Gnomad4 OTH
AF:
0.140
Alfa
AF:
0.142
Hom.:
4167
Bravo
AF:
0.132
TwinsUK
AF:
0.132
AC:
489
ALSPAC
AF:
0.130
AC:
500
ESP6500AA
AF:
0.0770
AC:
299
ESP6500EA
AF:
0.144
AC:
1196
ExAC
AF:
0.160
AC:
19328
Asia WGS
AF:
0.178
AC:
622
AN:
3476
EpiCase
AF:
0.142
EpiControl
AF:
0.138

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.055
BayesDel_addAF
Benign
-0.84
T
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.011
DANN
Benign
0.83
DEOGEN2
Benign
0.018
T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.0021
N
LIST_S2
Benign
0.020
T
MetaRNN
Benign
0.0041
T
MetaSVM
Benign
-0.93
T
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.62
N
REVEL
Benign
0.018
Sift
Benign
0.23
T
Sift4G
Benign
0.19
T
Polyphen
0.0
B
Vest4
0.013
MPC
0.25
ClinPred
0.0011
T
GERP RS
-1.4
Varity_R
0.026
gMVP
0.077

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: rs9358856; hg19: chr6-25426768; COSMIC: COSV61514777; API