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Protein

Prelamin-A/C

Gene

LMNA

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Lamins are components of the nuclear lamina, a fibrous layer on the nucleoplasmic side of the inner nuclear membrane, which is thought to provide a framework for the nuclear envelope and may also interact with chromatin. Lamin A and C are present in equal amounts in the lamina of mammals. Plays an important role in nuclear assembly, chromatin organization, nuclear membrane and telomere dynamics. Required for normal development of peripheral nervous system and skeletal muscle and for muscle satellite cell proliferation. Required for osteoblastogenesis and bone formation. Also prevents fat infiltration of muscle and bone marrow, helping to maintain the volume and strength of skeletal muscle and bone.
Prelamin-A/C can accelerate smooth muscle cell senescence. It acts to disrupt mitosis and induce DNA damage in vascular smooth muscle cells (VSMCs), leading to mitotic failure, genomic instability, and premature senescence.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei266Heptad change of phase1
Sitei325StutterBy similarity1
Sitei330Heptad change of phase1

GO - Molecular functioni

  • structural molecule activity Source: UniProtKB

GO - Biological processi

Complete GO annotation...

Enzyme and pathway databases

BioCyciZFISH:ENSG00000160789-MONOMER.
ReactomeiR-HSA-1221632. Meiotic synapsis.
R-HSA-2993913. Clearance of Nuclear Envelope Membranes from Chromatin.
R-HSA-2995383. Initiation of Nuclear Envelope Reformation.
R-HSA-352238. Breakdown of the nuclear lamina.
R-HSA-381038. XBP1(S) activates chaperone genes.
R-HSA-4419969. Depolymerisation of the Nuclear Lamina.
R-HSA-6802952. Signaling by BRAF and RAF fusions.
SIGNORiP02545.

Names & Taxonomyi

Protein namesi
Recommended name:
Prelamin-A/C
Cleaved into the following chain:
Alternative name(s):
70 kDa lamin
Renal carcinoma antigen NY-REN-32
Gene namesi
Name:LMNA
Synonyms:LMN1
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 1

Organism-specific databases

HGNCiHGNC:6636. LMNA.

Subcellular locationi

  • Nucleus
  • Nucleus envelope
  • Nucleus lamina
  • Nucleusnucleoplasm

  • Note: Farnesylation of prelamin-A/C facilitates nuclear envelope targeting and subsequent cleaveage by ZMPSTE24/FACE1 to remove the farnesyl group produces mature lamin-A/C, which can then be inserted into the nuclear lamina. EMD is required for proper localization of non-farnesylated prelamin-A/C.
Isoform C :

GO - Cellular componenti

  • cytoplasm Source: HPA
  • cytosol Source: Reactome
  • extracellular matrix Source: BHF-UCL
  • intermediate filament Source: UniProtKB
  • lamin filament Source: UniProtKB
  • nuclear envelope Source: UniProtKB
  • nuclear lamina Source: UniProtKB
  • nuclear membrane Source: UniProtKB
  • nuclear speck Source: UniProtKB-SubCell
  • nucleoplasm Source: HPA
  • nucleus Source: UniProtKB
  • perinuclear region of cytoplasm Source: UniProtKB
Complete GO annotation...

Keywords - Cellular componenti

Intermediate filament, Nucleus

Pathology & Biotechi

Involvement in diseasei

Emery-Dreifuss muscular dystrophy 2, autosomal dominant (EDMD2)12 Publications
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA form of Emery-Dreifuss muscular dystrophy, a degenerative myopathy characterized by weakness and atrophy of muscle without involvement of the nervous system, early contractures of the elbows, Achilles tendons and spine, and cardiomyopathy associated with cardiac conduction defects.
See also OMIM:181350
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_03974625R → G in EDMD2. 1 PublicationCorresponds to variant rs58327533dbSNPEnsembl.1
Natural variantiVAR_03974725R → P in EDMD2; mis-localized in the nucleus; causes nuclear deformations and LMNB1 redistribution. 2 PublicationsCorresponds to variant rs61578124dbSNPEnsembl.1
Natural variantiVAR_03974932Missing in EDMD2. 2 Publications1
Natural variantiVAR_03975133E → G in EDMD2. 1 PublicationCorresponds to variant rs267607614dbSNPEnsembl.1
Natural variantiVAR_03975235L → V in EDMD2. 1 PublicationCorresponds to variant rs56694480dbSNPEnsembl.1
Natural variantiVAR_06358839N → S in MDCL and EDMD2. 2 PublicationsCorresponds to variant rs57983345dbSNPEnsembl.1
Natural variantiVAR_03975343A → T in EDMD2. 1 PublicationCorresponds to variant rs60446065dbSNPEnsembl.1
Natural variantiVAR_00997145Y → C in EDMD2. 2 PublicationsCorresponds to variant rs58436778dbSNPEnsembl.1
Natural variantiVAR_00997250R → P in EDMD2 and MDCL. 2 PublicationsCorresponds to variant rs60695352dbSNPEnsembl.1
Natural variantiVAR_03975450R → S in EDMD2. 1 PublicationCorresponds to variant rs59931416dbSNPEnsembl.1
Natural variantiVAR_03975663I → N in EDMD2. 3 PublicationsCorresponds to variant rs57793737dbSNPEnsembl.1
Natural variantiVAR_00997463I → S in EDMD2. 1 PublicationCorresponds to variant rs57793737dbSNPEnsembl.1
Natural variantiVAR_03975765E → G in EDMD2. 1 Publication1
Natural variantiVAR_009976112Missing in EDMD2. 2 Publications1
Natural variantiVAR_017657133R → P in EDMD2. 1 PublicationCorresponds to variant rs60864230dbSNPEnsembl.1
Natural variantiVAR_039760140L → P in EDMD2. 2 PublicationsCorresponds to variant rs60652225dbSNPEnsembl.1
Natural variantiVAR_039762150T → P in EDMD2. 2 PublicationsCorresponds to variant rs58917027dbSNPEnsembl.1
Natural variantiVAR_064962189R → P in EDMD2; found also in a patient with limb-girdle muscular dystrophy; sporadic. 1 PublicationCorresponds to variant rs267607643dbSNPEnsembl.1
Natural variantiVAR_039763190R → Q in EDMD2 and CMD1A; aberrant localization with decreased nuclear rim staining and increased formation of intranuclear foci. 2 PublicationsCorresponds to variant rs267607571dbSNPEnsembl.1
Natural variantiVAR_064963190R → RR in EDMD2. 1 Publication1
Natural variantiVAR_039766196 – 199RLQT → S in EDMD2. 1 Publication4
Natural variantiVAR_064964206F → L in EDMD2. 1 PublicationCorresponds to variant rs267607629dbSNPEnsembl.1
Natural variantiVAR_039769222H → P in EDMD2. 1 PublicationCorresponds to variant rs58034145dbSNPEnsembl.1
Natural variantiVAR_009979222H → Y in EDMD2. 1 PublicationCorresponds to variant rs28928901dbSNPEnsembl.1
Natural variantiVAR_039771232G → E in EDMD2. 1 PublicationCorresponds to variant rs57207746dbSNPEnsembl.1
Natural variantiVAR_039772248L → P in EDMD2. 1 PublicationCorresponds to variant rs58850446dbSNPEnsembl.1
Natural variantiVAR_009980249R → Q in EDMD2. 8 PublicationsCorresponds to variant rs59332535dbSNPEnsembl.1
Natural variantiVAR_063589249R → W in MDCL and EDMD2; mislocalized in the nucleus; causes nuclear deformations and LMNB1 redistribution. 2 PublicationsCorresponds to variant rs121912496dbSNPEnsembl.1
Natural variantiVAR_009981261Missing in EDMD2. 3 Publications1
Natural variantiVAR_039774267Y → C in EDMD2. 1 PublicationCorresponds to variant rs57048196dbSNPEnsembl.1
Natural variantiVAR_064965268S → P in EDMD2. 1 PublicationCorresponds to variant rs267607630dbSNPEnsembl.1
Natural variantiVAR_064966271L → P in EDMD2. 1 PublicationCorresponds to variant rs267607641dbSNPEnsembl.1
Natural variantiVAR_009982294Q → P in EDMD2. 2 PublicationsCorresponds to variant rs61616775dbSNPEnsembl.1
Natural variantiVAR_064967295S → P in EDMD2. 1 PublicationCorresponds to variant rs267607633dbSNPEnsembl.1
Natural variantiVAR_064968303S → P in EDMD2. 1 PublicationCorresponds to variant rs61527854dbSNPEnsembl.1
Natural variantiVAR_009983336R → Q in EDMD2. 2 PublicationsCorresponds to variant rs58105277dbSNPEnsembl.1
Natural variantiVAR_009984343R → Q in EDMD2. 1 PublicationCorresponds to variant rs61177390dbSNPEnsembl.1
Natural variantiVAR_064969355Missing in EDMD2. 1 Publication1
Natural variantiVAR_009985358E → K in EDMD2 and MDCL; aberrant localization with decreased nuclear rim staining and formation of intranuclear foci; distribution of endogenous LMNA, LMNB1 and LMNB2 are altered in cells expressing this mutant; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 5 PublicationsCorresponds to variant rs60458016dbSNPEnsembl.1
Natural variantiVAR_064970361E → K in EDMD2. 1 PublicationCorresponds to variant rs267607634dbSNPEnsembl.1
Natural variantiVAR_009986371M → K in EDMD2; dramatically aberrant localization with decreased nuclear rim staining and formation of intranuclear foci; distribution of endogenous LMNA, LMNB1 and LMNB2 are altered in cells expressing this mutant; causes an increased loss of endogenous EMD from the nuclear envelope; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 2 PublicationsCorresponds to variant rs59653062dbSNPEnsembl.1
Natural variantiVAR_039777377R → L in EDMD2 and LGMD1B. 2 PublicationsCorresponds to variant rs61672878dbSNPEnsembl.1
Natural variantiVAR_009987386R → K in EDMD2; dramatically aberrant localization with decreased nuclear rim staining and formation of intranuclear foci; distribution of endogenous LMNA, LMNB1 and LMNB2 are altered in cells expressing this mutant; causes an increased loss of endogenous EMD from the nuclear envelope; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 4 PublicationsCorresponds to variant rs267607545dbSNPEnsembl.1
Natural variantiVAR_072818401R → C in EDMD2; no effect on nuclear lamin A localization; enhances the interaction with SYNE2. 2 PublicationsCorresponds to variant rs61094188dbSNPEnsembl.1
Natural variantiVAR_039780446D → V in EDMD2. 1 PublicationCorresponds to variant rs58541611dbSNPEnsembl.1
Natural variantiVAR_064971449G → D in EDMD2. 1 PublicationCorresponds to variant rs267607637dbSNPEnsembl.1
Natural variantiVAR_009988453R → W in EDMD2; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 7 PublicationsCorresponds to variant rs58932704dbSNPEnsembl.1
Natural variantiVAR_064972454L → P in EDMD2. 1 PublicationCorresponds to variant rs267607638dbSNPEnsembl.1
Natural variantiVAR_039781456N → I in EDMD2; mislocalized in the nucleus; does not alter nuclear size or shape. 2 PublicationsCorresponds to variant rs60992550dbSNPEnsembl.1
Natural variantiVAR_039782456N → K in EDMD2. 1 PublicationCorresponds to variant rs61235244dbSNPEnsembl.1
Natural variantiVAR_064973461D → Y in EDMD2. 1 PublicationCorresponds to variant rs267607642dbSNPEnsembl.1
Natural variantiVAR_064974467W → R in EDMD2. 1 PublicationCorresponds to variant rs267607639dbSNPEnsembl.1
Natural variantiVAR_009990469I → T in EDMD2. 1 PublicationCorresponds to variant rs57394692dbSNPEnsembl.1
Natural variantiVAR_039784520W → S in EDMD2; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 2 PublicationsCorresponds to variant rs58362413dbSNPEnsembl.1
Natural variantiVAR_009995527R → P in EDMD2 and FPLD2; interacts with itself and with wild-type LMNA and LMNB1; reduced binding to SUN1; no decrease in the stability compared with wild-type. 10 PublicationsCorresponds to variant rs57520892dbSNPEnsembl.1
Natural variantiVAR_009996528T → K in EDMD2; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 4 PublicationsCorresponds to variant rs57629361dbSNPEnsembl.1
Natural variantiVAR_039785528T → R in EDMD2. 2 PublicationsCorresponds to variant rs57629361dbSNPEnsembl.1
Natural variantiVAR_009997530L → P in EDMD2; interacts with itself and with wild-type LMNA and LMNB1; reduced binding to SUN1; no decrease in the stability compared with wild-type. 3 PublicationsCorresponds to variant rs60934003dbSNPEnsembl.1
Natural variantiVAR_039787541R → H in EDMD2. 1 PublicationCorresponds to variant rs61444459dbSNPEnsembl.1
Natural variantiVAR_064975541R → P in EDMD2; mis-localized in the nucleus; does not alter nuclear size or shape. 1 PublicationCorresponds to variant rs61444459dbSNPEnsembl.1
Natural variantiVAR_039788541R → S in EDMD2 and CMD1A; modest and non-specific nuclear membrane alterations; the phenotype is entirely reversed by coexpression of the S-541 mutation and wild-type lamin-C. 2 PublicationsCorresponds to variant rs56984562dbSNPEnsembl.1
Natural variantiVAR_064976602G → S in EDMD2. 1 PublicationCorresponds to variant rs60662302dbSNPEnsembl.1
Natural variantiVAR_039791624R → H in EDMD2. 1 PublicationCorresponds to variant rs13768dbSNPEnsembl.1
Natural variantiVAR_039792644R → C in HGPS and EDMD2; partially inhibits tail cleavage. 3 PublicationsCorresponds to variant rs142000963dbSNPEnsembl.1
Emery-Dreifuss muscular dystrophy 3, autosomal recessive (EDMD3)2 Publications
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA form of Emery-Dreifuss muscular dystrophy, a degenerative myopathy characterized by weakness and atrophy of muscle without involvement of the nervous system, early contractures of the elbows, Achilles tendons and spine, and cardiomyopathy associated with cardiac conduction defects.
See also OMIM:616516
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_07656224T → S in EDMD3. 1 Publication1
Natural variantiVAR_067697225R → Q in EDMD3. 1 PublicationCorresponds to variant rs199474724dbSNPEnsembl.1
Cardiomyopathy, dilated 1A (CMD1A)12 Publications
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death.
See also OMIM:115200
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_03470660R → G in CMD1A and FPLD2; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 3 PublicationsCorresponds to variant rs28928900dbSNPEnsembl.1
Natural variantiVAR_00997585L → R in CMD1A; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 2 PublicationsCorresponds to variant rs28933090dbSNPEnsembl.1
Natural variantiVAR_03975889R → L in CMD1A; dramatically aberrant localization with almost no nuclear rim staining and formation of intranuclear foci. 2 PublicationsCorresponds to variant rs59040894dbSNPEnsembl.1
Natural variantiVAR_06725792L → F in CMD1A. 1 PublicationCorresponds to variant rs267607560dbSNPEnsembl.1
Natural variantiVAR_03975997K → E in CMD1A. 1 PublicationCorresponds to variant rs59065411dbSNPEnsembl.1
Natural variantiVAR_070174101R → P in CMD1A; dramatically aberrant localization with almost no nuclear rim staining and formation of intranuclear foci. 1 PublicationCorresponds to variant rs267607568dbSNPEnsembl.1
Natural variantiVAR_039761143S → P in CMD1A. 1 PublicationCorresponds to variant rs61661343dbSNPEnsembl.1
Natural variantiVAR_017660161E → K in CMD1A. 2 PublicationsCorresponds to variant rs28933093dbSNPEnsembl.1
Natural variantiVAR_070176166R → P in CMD1A; dramatically aberrant localization with almost no nuclear rim staining and formation of intranuclear foci. 1 PublicationCorresponds to variant rs267607570dbSNPEnsembl.1
Natural variantiVAR_039763190R → Q in EDMD2 and CMD1A; aberrant localization with decreased nuclear rim staining and increased formation of intranuclear foci. 2 PublicationsCorresponds to variant rs267607571dbSNPEnsembl.1
Natural variantiVAR_039764190R → W in CMD1A. 3 PublicationsCorresponds to variant rs59026483dbSNPEnsembl.1
Natural variantiVAR_039765192D → G in CMD1A; dramatically increases the size of intranuclear speckles and reduces their number; this phenotype is only partially reversed by coexpression of the G-192 mutation and wild-type lamin-C; precludes insertion of lamin-C into the nuclear envelope when co-transfected with the G-192 LMNA; G-192 lamin-C expression totally disrupts the SUMO1 pattern. 1 PublicationCorresponds to variant rs57045855dbSNPEnsembl.1
Natural variantiVAR_009977195N → K in CMD1A; dramatically aberrant localization with decreased nuclear rim staining and formation of intranuclear foci; distribution of endogenous LMNA, LMNB1 and LMNB2 are altered in cells expressing this mutant; causes an increased loss of endogenous EMD from the nuclear envelope; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 2 PublicationsCorresponds to variant rs28933091dbSNPEnsembl.1
Natural variantiVAR_009978203E → G in CMD1A; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type; decreased sumoylation; aberrant localization with decreased nuclear rim staining and formation of intranuclear foci; associated with increased cell death. 3 PublicationsCorresponds to variant rs28933092dbSNPEnsembl.1
Natural variantiVAR_039767203E → K in CMD1A; decreased sumoylation; aberrant localization with decreased nuclear rim staining and formation of intranuclear foci; associated with increased cell death. 3 PublicationsCorresponds to variant rs61195471dbSNPEnsembl.1
Natural variantiVAR_070177210I → S in CMD1A; dramatically aberrant localization with almost no nuclear rim staining and increased formation of intranuclear foci. 1 PublicationCorresponds to variant rs267607572dbSNPEnsembl.1
Natural variantiVAR_039768215L → P in CMD1A; aberrant localization with decreased nuclear rim staining and formation of intranuclear foci. 2 PublicationsCorresponds to variant rs61295588dbSNPEnsembl.1
Natural variantiVAR_039775317E → K in CMD1A. 2 PublicationsCorresponds to variant rs56816490dbSNPEnsembl.1
Natural variantiVAR_070179318A → T in CMD1A; no effect on nuclear morphology and lamin A localization. 1 PublicationCorresponds to variant rs267607574dbSNPEnsembl.1
Natural variantiVAR_039776349R → L in CMD1A. 1 PublicationCorresponds to variant rs58789393dbSNPEnsembl.1
Natural variantiVAR_070180388R → H in CMD1A; no effect on nuclear morphology but restricts lamin A to the cytoplasm. 1 PublicationCorresponds to variant rs267607576dbSNPEnsembl.1
Natural variantiVAR_039778399R → C in FPLD2 and CMD1A; no effect on nuclear morphology and lamin A localization. 2 PublicationsCorresponds to variant rs58672172dbSNPEnsembl.1
Natural variantiVAR_039779435R → C in CMD1A. 1 PublicationCorresponds to variant rs150840924dbSNPEnsembl.1
Natural variantiVAR_070182471R → H in CMD1A; no effect on nuclear morphology and lamin A localization. 1 PublicationCorresponds to variant rs267607578dbSNPEnsembl.1
Natural variantiVAR_067258523G → R in CMD1A. 1 PublicationCorresponds to variant rs201583907dbSNPEnsembl.1
Natural variantiVAR_039788541R → S in EDMD2 and CMD1A; modest and non-specific nuclear membrane alterations; the phenotype is entirely reversed by coexpression of the S-541 mutation and wild-type lamin-C. 2 PublicationsCorresponds to variant rs56984562dbSNPEnsembl.1
Natural variantiVAR_039789573S → L in CMD1A, FPLD2 and MADA. 3 PublicationsCorresponds to variant rs60890628dbSNPEnsembl.1
Lipodystrophy, familial partial, 2 (FPLD2)8 Publications
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA disorder characterized by the loss of subcutaneous adipose tissue in the lower parts of the body (limbs, buttocks, trunk). It is accompanied by an accumulation of adipose tissue in the face and neck causing a double chin, fat neck, or cushingoid appearance. Adipose tissue may also accumulate in the axillae, back, labia majora, and intraabdominal region. Affected patients are insulin-resistant and may develop glucose intolerance and diabetes mellitus after age 20 years, hypertriglyceridemia, and low levels of high density lipoprotein cholesterol.
See also OMIM:151660
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_03974828R → W in FPLD2. 1 PublicationCorresponds to variant rs59914820dbSNPEnsembl.1
Natural variantiVAR_03470660R → G in CMD1A and FPLD2; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 3 PublicationsCorresponds to variant rs28928900dbSNPEnsembl.1
Natural variantiVAR_03975562R → G in FPLD2. 1 PublicationCorresponds to variant rs56793579dbSNPEnsembl.1
Natural variantiVAR_016913133R → L in FPLD2. 1 PublicationCorresponds to variant rs60864230dbSNPEnsembl.1
Natural variantiVAR_039770230D → N in FPLD2. 1 PublicationCorresponds to variant rs61214927dbSNPEnsembl.1
Natural variantiVAR_039778399R → C in FPLD2 and CMD1A; no effect on nuclear morphology and lamin A localization. 2 PublicationsCorresponds to variant rs58672172dbSNPEnsembl.1
Natural variantiVAR_070181439R → C in FPLD2; increase in nuclear blebbing and formation of honeycomb-like structures in the nuclei with no accumulation of prelamin A in skin fibroblasts; causes oligomerization of the C-terminal globular domain of lamins A and C under no-reducing conditions and increases binding affinity for DNA; increases sensitivity to oxidative stress; no significant differences in stability and structure compared with the wild-type. 1 PublicationCorresponds to variant rs62636506dbSNPEnsembl.1
Natural variantiVAR_009989465G → D in FPLD2. 1 PublicationCorresponds to variant rs61282106dbSNPEnsembl.1
Natural variantiVAR_009991482R → L in FPLD2. 1 PublicationCorresponds to variant rs11575937dbSNPEnsembl.1
Natural variantiVAR_009992482R → Q in FPLD2; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 3 PublicationsCorresponds to variant rs11575937dbSNPEnsembl.1
Natural variantiVAR_009993482R → W in FPLD2; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type; decreases binding affinity for DNA; increases sensitivity to oxidative stress. 4 PublicationsCorresponds to variant rs57920071dbSNPEnsembl.1
Natural variantiVAR_009994486K → N in FPLD2; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 1 PublicationCorresponds to variant rs59981161dbSNPEnsembl.1
Natural variantiVAR_071968515K → E in FPLD2. 1 Publication1
Natural variantiVAR_009995527R → P in EDMD2 and FPLD2; interacts with itself and with wild-type LMNA and LMNB1; reduced binding to SUN1; no decrease in the stability compared with wild-type. 10 PublicationsCorresponds to variant rs57520892dbSNPEnsembl.1
Natural variantiVAR_039789573S → L in CMD1A, FPLD2 and MADA. 3 PublicationsCorresponds to variant rs60890628dbSNPEnsembl.1
Natural variantiVAR_009998582R → H in FPLD2. 1 PublicationCorresponds to variant rs57830985dbSNPEnsembl.1
Limb-girdle muscular dystrophy 1B (LGMD1B)7 Publications
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionAn autosomal dominant degenerative myopathy with age-related atrioventricular cardiac conduction disturbances, dilated cardiomyopathy, and the absence of early contractures. Characterized by slowly progressive skeletal muscle weakness of the hip and shoulder girdles. Muscle biopsy shows mild dystrophic changes.
See also OMIM:159001
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_034708208Missing in LGMD1B. 1 Publication1
Natural variantiVAR_076563259Y → C in LGMD1B. 1 Publication1
Natural variantiVAR_016205377R → H in LGMD1B. 5 PublicationsCorresponds to variant rs61672878dbSNPEnsembl.1
Natural variantiVAR_039777377R → L in EDMD2 and LGMD1B. 2 PublicationsCorresponds to variant rs61672878dbSNPEnsembl.1
Natural variantiVAR_039783481Y → H in LGMD1B. 1 PublicationCorresponds to variant rs57747780dbSNPEnsembl.1
Charcot-Marie-Tooth disease 2B1 (CMT2B1)1 Publication
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA recessive axonal form of Charcot-Marie-Tooth disease, a disorder of the peripheral nervous system, characterized by progressive weakness and atrophy, initially of the peroneal muscles and later of the distal muscles of the arms. Charcot-Marie-Tooth disease is classified in two main groups on the basis of electrophysiologic properties and histopathology: primary peripheral demyelinating neuropathies (designated CMT1 when they are dominantly inherited) and primary peripheral axonal neuropathies (CMT2). Neuropathies of the CMT2 group are characterized by signs of axonal degeneration in the absence of obvious myelin alterations, normal or slightly reduced nerve conduction velocities, and progressive distal muscle weakness and atrophy. Nerve conduction velocities are normal or slightly reduced.
See also OMIM:605588
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_017661298R → C in CMT2B1. 1 PublicationCorresponds to variant rs59885338dbSNPEnsembl.1
Hutchinson-Gilford progeria syndrome (HGPS)9 Publications
The disease is caused by mutations affecting the gene represented in this entry. HGPS is caused by the toxic accumulation of a truncated form of lamin-A/C. This mutant protein, called progerin (isoform 6), acts to deregulate mitosis and DNA damage signaling, leading to premature cell death and senescence. The mutant form is mainly generated by a silent or missense mutation at codon 608 of prelamin A that causes activation of a cryptic splice donor site, resulting in production of isoform 6 with a deletion of 50 amino acids near the C terminus. Progerin lacks the conserved ZMPSTE24/FACE1 cleavage site and therefore remains permanently farnesylated. Thus, although it can enter the nucleus and associate with the nuclear envelope, it cannot incorporate normally into the nuclear lamina (PubMed:12714972).1 Publication
Disease descriptionRare genetic disorder characterized by features reminiscent of marked premature aging.
See also OMIM:176670
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_070175138E → K in HGPS; might be associated with early and severe strokes. 1 PublicationCorresponds to variant rs267607649dbSNPEnsembl.1
Natural variantiVAR_017658140L → R in HGPS; phenotype originally designated as atypical Werner syndrome. 1 PublicationCorresponds to variant rs60652225dbSNPEnsembl.1
Natural variantiVAR_034707143S → F in HGPS. 1 PublicationCorresponds to variant rs58912633dbSNPEnsembl.1
Natural variantiVAR_017659145E → K in HGPS; atypical. 1 PublicationCorresponds to variant rs60310264dbSNPEnsembl.1
Natural variantiVAR_070178300D → G in HGPS; atypical form with late onset; abnormal nuclear morphology with single or multple blebs, lobulation and occasional ringed or donut shaped nuclei. 1 Publication1
Natural variantiVAR_017662471R → C in HGPS. 1 PublicationCorresponds to variant rs28928902dbSNPEnsembl.1
Natural variantiVAR_017663527R → C in HGPS. 1 PublicationCorresponds to variant rs57318642dbSNPEnsembl.1
Natural variantiVAR_034710542K → N in HGPS. 1 PublicationCorresponds to variant rs56673169dbSNPEnsembl.1
Natural variantiVAR_017664608G → S in HGPS; reduced binding to SUN1; may affect splicing by activating a cryptic splice donor site. 3 PublicationsCorresponds to variant rs61064130dbSNPEnsembl.1
Natural variantiVAR_039792644R → C in HGPS and EDMD2; partially inhibits tail cleavage. 3 PublicationsCorresponds to variant rs142000963dbSNPEnsembl.1
Cardiomyopathy, dilated, with hypergonadotropic hypogonadism (CMDHH)3 Publications
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA disorder characterized by the association of genital anomalies, hypergonadotropic hypogonadism and dilated cardiomyopathy. Patients can present other variable clinical manifestations including mental retardation, skeletal anomalies, scleroderma-like skin, graying and thinning of hair, osteoporosis. Dilated cardiomyopathy is characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia.
See also OMIM:212112
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_01765657A → P in CMDHH; phenotype originally designated as atypical Werner syndrome. 1 PublicationCorresponds to variant rs28928903dbSNPEnsembl.1
Natural variantiVAR_06405559L → R in CMDHH. 2 PublicationsCorresponds to variant rs58922911dbSNPEnsembl.1
Mandibuloacral dysplasia with type A lipodystrophy (MADA)3 Publications
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA disorder characterized by mandibular and clavicular hypoplasia, acroosteolysis, delayed closure of the cranial suture, progeroid appearance, partial alopecia, soft tissue calcinosis, joint contractures, and partial lipodystrophy with loss of subcutaneous fat from the extremities. Adipose tissue in the face, neck and trunk is normal or increased.
See also OMIM:248370
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_018727527R → H in MADA. 1 PublicationCorresponds to variant rs57520892dbSNPEnsembl.1
Natural variantiVAR_034709529A → V in MADA. 1 PublicationCorresponds to variant rs60580541dbSNPEnsembl.1
Natural variantiVAR_039789573S → L in CMD1A, FPLD2 and MADA. 3 PublicationsCorresponds to variant rs60890628dbSNPEnsembl.1
Lethal tight skin contracture syndrome (LTSCS)1 Publication
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionRare disorder mainly characterized by intrauterine growth retardation, tight and rigid skin with erosions, prominent superficial vasculature and epidermal hyperkeratosis, facial features (small mouth, small pinched nose and micrognathia), sparse/absent eyelashes and eyebrows, mineralization defects of the skull, thin dysplastic clavicles, pulmonary hypoplasia, multiple joint contractures and an early neonatal lethal course. Liveborn children usually die within the first week of life. The overall prevalence of consanguineous cases suggested an autosomal recessive inheritance.
See also OMIM:275210
Heart-hand syndrome Slovenian type (HHS-Slovenian)1 Publication
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionHeart-hand syndrome (HHS) is a clinically and genetically heterogeneous disorder characterized by the co-occurrence of a congenital cardiac disease and limb malformations.
See also OMIM:610140
Muscular dystrophy congenital LMNA-related (MDCL)1 Publication
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA form of congenital muscular dystrophy. Patients present at birth, or within the first few months of life, with hypotonia, muscle weakness and often with joint contractures.
See also OMIM:613205
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_06358839N → S in MDCL and EDMD2. 2 PublicationsCorresponds to variant rs57983345dbSNPEnsembl.1
Natural variantiVAR_00997250R → P in EDMD2 and MDCL. 2 PublicationsCorresponds to variant rs60695352dbSNPEnsembl.1
Natural variantiVAR_063589249R → W in MDCL and EDMD2; mislocalized in the nucleus; causes nuclear deformations and LMNB1 redistribution. 2 PublicationsCorresponds to variant rs121912496dbSNPEnsembl.1
Natural variantiVAR_063590302L → P in MDCL. 1 PublicationCorresponds to variant rs267607596dbSNPEnsembl.1
Natural variantiVAR_009985358E → K in EDMD2 and MDCL; aberrant localization with decreased nuclear rim staining and formation of intranuclear foci; distribution of endogenous LMNA, LMNB1 and LMNB2 are altered in cells expressing this mutant; interacts with itself and with wild-type LMNA and LMNB1; no decrease in the stability compared with wild-type. 5 PublicationsCorresponds to variant rs60458016dbSNPEnsembl.1
Natural variantiVAR_063591380L → S in MDCL. 1 PublicationCorresponds to variant rs121912495dbSNPEnsembl.1
Natural variantiVAR_063592453R → P in MDCL. 1 PublicationCorresponds to variant rs267607598dbSNPEnsembl.1
Natural variantiVAR_063593455R → P in MDCL. 1 PublicationCorresponds to variant rs267607597dbSNPEnsembl.1
Natural variantiVAR_063594456N → D in MDCL. 1 PublicationCorresponds to variant rs267607599dbSNPEnsembl.1

Defects in LMNA may cause a late-onset cardiocutaneous progeria syndrome characterized by cutaneous manifestations of aging appearing in the third decade of life, cardiac valve calcification and dysfunction, prominent atherosclerosis, and cardiomyopathy, leading to death on average in the fourth decade.

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi201K → L: Decreased sumoylation; aberrant localization with decreased nuclear rim staining and formation of intranuclear foci; associated with increased cell death. 1 Publication1
Mutagenesisi644R → A: Does not affect tail cleavage. 1 Publication1
Mutagenesisi647L → R: Completely inhibits tail cleavage. 1 Publication1
Mutagenesisi648L → A: Completely inhibits tail cleavage. 1 Publication1
Mutagenesisi650N → A: Partially inhibits tail cleavage. 1 Publication1
Mutagenesisi661C → S: Loss of interaction with NARF. Abolishes farnesylation. 2 Publications1

Keywords - Diseasei

Cardiomyopathy, Charcot-Marie-Tooth disease, Congenital muscular dystrophy, Disease mutation, Emery-Dreifuss muscular dystrophy, Limb-girdle muscular dystrophy, Neurodegeneration, Neuropathy

Organism-specific databases

DisGeNETi4000.
MalaCardsiLMNA.
MIMi115200. phenotype.
151660. phenotype.
159001. phenotype.
176670. phenotype.
181350. phenotype.
212112. phenotype.
248370. phenotype.
275210. phenotype.
605588. phenotype.
610140. phenotype.
613205. phenotype.
616516. phenotype.
OpenTargetsiENSG00000160789.
Orphaneti79474. Atypical Werner syndrome.
280365. Autosomal codominant severe lipodystrophic laminopathy.
98853. Autosomal dominant Emery-Dreifuss muscular dystrophy.
264. Autosomal dominant limb-girdle muscular dystrophy type 1B.
98855. Autosomal recessive Emery-Dreifuss muscular dystrophy.
98856. Charcot-Marie-Tooth disease type 2B1.
157973. Congenital muscular dystrophy due to LMNA mutation.
2229. Dilated cardiomyopathy - hypergonadotropic hypogonadism.
300751. Familial dilated cardiomyopathy with conduction defect due to LMNA mutation.
293899. Familial isolated arrhythmogenic ventricular dysplasia, biventricular form.
293888. Familial isolated arrhythmogenic ventricular dysplasia, left dominant form.
293910. Familial isolated arrhythmogenic ventricular dysplasia, right dominant form.
2348. Familial partial lipodystrophy, Dunnigan type.
79084. Familial partial lipodystrophy, Kobberling type.
168796. Heart-hand syndrome, Slovenian type.
740. Hutchinson-Gilford progeria syndrome.
137871. Laminopathy type Decaudain-Vigouroux.
54260. Left ventricular noncompaction.
1662. Lethal restrictive dermopathy.
363618. LMNA-related cardiocutaneous progeria syndrome.
90153. Mandibuloacral dysplasia with type A lipodystrophy.
99706. Progeria-associated arthropathy.
PharmGKBiPA231.

Chemistry databases

ChEMBLiCHEMBL1293235.

Polymorphism and mutation databases

BioMutaiLMNA.
DMDMi125962.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003988351 – 661Prelamin-A/CAdd BLAST661
ChainiPRO_00000638101 – 646Lamin-A/CAdd BLAST646
PropeptideiPRO_0000398836647 – 661