KLHL41

protein-coding

kelch like family member 41, the group of Kelch like|BTB domain containing

Gene summary

This gene is a member of the kelch-like family. The encoded protein contains a BACK domain, a BTB/POZ domain, and 5 Kelch repeats. This protein is thought to function in skeletal muscle development and maintenance. Mutations in this gene have been associated with nemaline myopathy (NM), a rare congenital muscle disorder. [provided by RefSeq, Mar 2015]

Previous symbols:
  • KBTBD10

MANE transcript

NM_006063.3

Inheritance

AD, AR

ClinVar variants

P:31U:179B:99

Top phenotype

Nemaline myopathy 9

gnomAD constraint

pLI —, LoF o/e 0.47

Max pathogenic AF

—

Genomic locus

chr2:169,509,702-169,526,258

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~16.6 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

intermediate nemaline myopathySUPPORTIVE

Inheritance Pattern: AD

Disease ID:MONDO:0015736

Submitter: Orphanet

typical nemaline myopathySUPPORTIVE

Inheritance Pattern: AD

Disease ID:MONDO:0015737

Submitter: Orphanet

nemaline myopathy 9STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0014326

Submitter: Labcorp Genetics (formerly Invitae)

childhood-onset nemaline myopathySUPPORTIVE

Inheritance Pattern: AD

Disease ID:MONDO:0015738

Submitter: Orphanet

severe congenital nemaline myopathySUPPORTIVE

Inheritance Pattern: AR

Disease ID:MONDO:0015735

Submitter: Orphanet

nemaline myopathy 9STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0014326

Submitter: PanelApp Australia

nemaline myopathy 9MODERATE

Inheritance Pattern: AR

Disease ID:MONDO:0014326

Submitter: ClinGen

*KLHL41* was first reported in relation to autosomal-recessive nemaline myopathy 9 in 2013 (Gupta VA, et al., PMID: 24268659). At least 8 unique variants (e.g. missense, in-frame indel, frameshift, large deletion) have been reported in humans. Evidence supporting this gene-disease relationship includes case-level and experimental data. Summary of Case Level Data: 3.5 POINTS. Variants in this gene have been curated from 5 probands in 3 publications ( PMID: 24268659, 28939701, 28749478). The mechanism for the disease is homozygous loss of function (PMID: 24268659). This gene-disease association is supported by a mouse model (PMID: 28826497) which recapitulates disease as well as a zebrafish myopathy model which was rescued by expression of human *KLHL41* (PMID: 24268659). Additionally, the function of KLHL41 in regulation of the thin filaments (PMIDs: 28826497, 30986853) its expression in skeletal muscle (PMID: 28826497), and its interaction with components of the sarcomere (PMID: 28826497), all provide further evidence. In summary, there is moderate evidence to support this gene-disease relationship. While more evidence is needed to establish this relationship definitively, no convincing contradictory evidence has emerged. This gene-disease pair was originally evaluated by the CM GCEP on 11/5/2019. It was reevaluated on 10/21/2024. As a result of this reevaluation no new evidence was identified and the classification remained at Moderate (SOP Version 11).

nemaline myopathy 9MODERATE

Inheritance Pattern: AR

Disease ID:MONDO:0014326

Submitter: Ambry Genetics

Clinical Genomic Database (CGD)

Nemaline myopathy 9AR

Manifestation: Craniofacial; Musculoskeletal

Intervention: General

Rationale: Genetic knowledge may be beneficial related to issues such as selection of optimal supportive care, informed medical decision-making, prognostic considerations, and avoidance of unnecessary testing

Refs: 24268659Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to KLHL41 variants in ClinVar

6 Conditions Cataloged
Nemaline myopathy 9Total: 284
Inborn genetic diseasesTotal: 79
not providedTotal: 51
not specifiedTotal: 13
KLHL41-related disorderTotal: 11
Nemaline myopathyTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_006063.3. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
1
clinvar
87
clinvar
1
clinvar
89
missense
1
clinvar
1
clinvar
176
clinvar
10
clinvar
1
clinvar
189
nonsense
7
clinvar
1
clinvar
1
clinvar
9
start loss
0
frameshift
14
clinvar
6
clinvar
1
clinvar
21
splice donor/acceptor (+/-2bp)
1
clinvar
1
Total229179972309

Highest pathogenic variant AF is 0.000042773296

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 14 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_006063.3RefSeqNP_006054.26MANE Select
ENST00000284669.2EnsemblENSP00000284669.16MANE Select
ENST00000946624.1EnsemblENSP00000616683.16Standard
ENST00000946624.2EnsemblENSP00000616683.16Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
klhl41aDanio rerio

Structure: skeletal muscle

Quality: refractivity

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Post-translational protein modification
  • Metabolism of proteins
  • Immune System
  • Adaptive Immune System
  • Antigen processing: Ubiquitination & Proteasome degradation

Biological Process

  • striated muscle contraction
  • protein ubiquitination
  • myofibril assembly
  • regulation of lateral pseudopodium assembly
  • skeletal muscle cell differentiation

Molecular Function

  • protein binding

Cellular Component

  • ruffle
  • nucleus
  • cytoplasm
  • endoplasmic reticulum membrane
  • cytosol

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000284669
Coding exons
6
Length
16561
Individuals with no LoFs
125704
Homozygous LoFs
0
Heterozygous LoFs
44
Defined
125748
p
0.000175
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.8872823270.8620.00001723991
Missense (PolyPhen)84111.320.754571324
Synonymous1.171031190.8630.000006291179
Loss of Function2.271021.30.4699.84e-7299

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000190.00018rare
Latino/Admixed American0.000120.00012rare
Ashkenazi Jewish00.0absent
East Asian0.000160.00016rare
Finnish0.000140.00014rare
European (Non-Finnish)0.000250.00025rare
South Asian0.0000980.000098rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Involved in skeletal muscle development and differentiation. Regulates proliferation and differentiation of myoblasts and plays a role in myofibril assembly by promoting lateral fusion of adjacent thin fibrils into mature, wide myofibrils. Required for pseudopod elongation in transformed cells. {ECO:0000250|UniProtKB:A2AUC9}.;
Disease
DISEASE: Nemaline myopathy 9 (NEM9) [MIM:615731]: An autosomal recessive form of nemaline myopathy. Nemaline myopathies are muscular disorders characterized by muscle weakness of varying severity and onset, and abnormal thread-like or rod-shaped structures in muscle fibers on histologic examination. NEM9 phenotype is highly variable, ranging from death in infancy due to lack of antigravity movements, to slowly progressive distal muscle weakness with preserved ambulation later in childhood. {ECO:0000269|PubMed:24268659}. Note=The disease is caused by mutations affecting the gene represented in this entry.;

Recessive Scores

pRec
0.124

Intolerance Scores

RVIS EVS
0.2
RVIS percentile EVS
67.3

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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