2-127657502-G-T

Variant names:

• chr2-127657502-G-T
• NM_001161403.3:c.72C>A
• LIMS2 p.Pro24Pro

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001161403.3(LIMS2):​c.72C>A​(p.Pro24Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: LIMS2 NM_001161403.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.74
• Publications: 0 publications found

Genes affected

LIMS2 (HGNC:16084): (LIM zinc finger domain containing 2) This gene encodes a member of a small family of focal adhesion proteins which interacts with ILK (integrin-linked kinase), a protein which effects protein-protein interactions with the extraceullar matrix. The encoded protein has five LIM domains, each domain forming two zinc fingers, which permit interactions which regulate cell shape and migration. A pseudogene of this gene is located on chromosome 4. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

LIMS2 Gene-Disease associations (from GenCC):

• autosomal recessive limb-girdle muscular dystrophy type 2W

  Inheritance: AR, Unknown Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
• autosomal recessive limb-girdle muscular dystrophy

  Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BP7: Synonymous conserved (PhyloP=-3.74 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001161403.3. 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
	LIMS2	NM_001161403.3	MANE Select	c.72C>A	p.Pro24Pro	synonymous	Exon 2 of 10	NP_001154875.1	Q7Z4I7-1
	LIMS2	NM_017980.5		c.144C>A	p.Pro48Pro	synonymous	Exon 2 of 10	NP_060450.2
	LIMS2	NM_001136037.4		c.138C>A	p.Pro46Pro	synonymous	Exon 3 of 11	NP_001129509.2	Q7Z4I7-5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LIMS2	ENST00000355119.9	TSL:1 MANE Select	c.72C>A	p.Pro24Pro	synonymous	Exon 2 of 10	ENSP00000347240.4	Q7Z4I7-1
	LIMS2	ENST00000324938.9	TSL:1	c.144C>A	p.Pro48Pro	synonymous	Exon 2 of 10	ENSP00000326888.5	Q7Z4I7-2
	LIMS2	ENST00000409455.5	TSL:1	c.57C>A	p.Pro19Pro	synonymous	Exon 2 of 10	ENSP00000386383.1	Q7Z4I7-3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	0.015
DANN	Benign	0.68
PhyloP100		-3.7
Mutation Taster		=99/1	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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr2-128415076;

COSMIC: COSV99760498;

COSMIC: COSV99760498;