SGCB sarcoglycan beta [Homo sapiens (human)] - Gene

Summary

Official Symbol: SGCBprovided by HGNC
Official Full Name: sarcoglycan betaprovided by HGNC
Primary source: HGNC:HGNC:10806
See related: Ensembl:ENSG00000163069 MIM:600900; AllianceGenome:HGNC:10806
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: A3b; SGC; LGMD2E; LGMDR4
Summary: This gene encodes a member of the sarcoglycan family. Sarcoglycans are transmembrane components in the dystrophin-glycoprotein complex which help stabilize the muscle fiber membranes and link the muscle cytoskeleton to the extracellular matrix. Mutations in this gene have been associated with limb-girdle muscular dystrophy.[provided by RefSeq, Oct 2008]
Expression: Ubiquitous expression in heart (RPKM 22.7), brain (RPKM 22.7) and 23 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 4q12

Exon count:: 7

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	4	NC_000004.12 (52020706..52038299, complement)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	4	NC_060928.1 (55506644..55524238, complement)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	4	NC_000004.11 (52886872..52904465, complement)

Chromosome 4 - NC_000004.12 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Identification of a shared, common haplotype segregating with an SGCB c.544 T > G mutation in Indian patients affected with sarcoglycanopathy.
Title: Identification of a shared, common haplotype segregating with an SGCB c.544 T > G mutation in Indian patients affected with sarcoglycanopathy.
Comprehensive functional characterization of SGCB coding variants predicts pathogenicity in limb-girdle muscular dystrophy type R4/2E.
Title: Comprehensive functional characterization of SGCB coding variants predicts pathogenicity in limb-girdle muscular dystrophy type R4/2E.
Clinical, genetic profile and disease progression of sarcoglycanopathies in a large cohort from India: high prevalence of SGCB c.544A > C.
Title: Clinical, genetic profile and disease progression of sarcoglycanopathies in a large cohort from India: high prevalence of SGCB c.544A > C.
This study demonstrated that LGMD2E is the most common type of sarcoglycanopathies in the Iranian population.
Title: LGMD2E is the most common type of sarcoglycanopathies in the Iranian population.
Clinical severity of limb-girdle muscular dystrophy type 2Emay be predicted by SGCB gene mutation and sarcoglycan protein expression.
Title: Clinical and genetic spectrum in limb-girdle muscular dystrophy type 2E.
The limb-girdle muscular dystrophy patients with beta-sarcoglycan deficient LGMD2E do not enable an accurate prediction of the genotype.
Title: Sarcoglycanopathies: can muscle immunoanalysis predict the genotype?
While the quantity of beta-sarcoglycan was nearly normal in the limb girdle muscular dystrophy (LGMD)2E carrier, the levels of dysferlin protein were reduced to 50% of controls in the carriers of LGMD2B.
Title: Muscle protein analysis in the detection of heterozygotes for recessive limb girdle muscular dystrophy type 2B and 2E.
Defective assembly of sarcoglycan complex in patients with beta-sarcoglycan gene mutations
Title: Defective assembly of sarcoglycan complex in patients with beta-sarcoglycan gene mutations. Study of aneural and innervated cultured myotubes.
These data suggest that formation of the beta-delta-core may promote the export and deposition of sarcoglycan subcomplexes at the plasma membrane, and therefore identifies a mechanism for sarcoglycan transport.
Title: The beta-delta-core of sarcoglycan is essential for deposition at the plasma membrane.
beta-sarcoglycan and SPATA18 may have a role in limb-girdle muscular dystrophy type 2E
Title: Homozygous microdeletion of chromosome 4q11-q12 causes severe limb-girdle muscular dystrophy type 2E with joint hyperlaxity and contractures.

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Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Associated conditions

Description	Tests
Autosomal recessive limb-girdle muscular dystrophy type 2E MedGen: C1858593 OMIM: 604286 GeneReviews: Not available	Compare labs
Limb-girdle muscular dystrophy MedGen: C0686353 GeneReviews: Not available	Compare labs

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

HIV-1 interactions

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Protein interactions

Protein	Gene	Interaction	Pubs
Tat	tat	HIV-1 Tat downregulates sarcoglycan, beta in HEK 293T cells	PubMed

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

D8S2279 (e-PCR)
- UniSTS:473907

D1S1423 (e-PCR)
- UniSTS:149619

D11S3114 (e-PCR)
- UniSTS:152207

D16S325 (e-PCR)
- UniSTS:147089

SHGC-50265 (e-PCR)
- UniSTS:83096

STS-W81563 (e-PCR)
- UniSTS:15534

D4S2539E (e-PCR)
- UniSTS:150968

D4S2486E (e-PCR)
- UniSTS:42429

SHGC-67269 (e-PCR)
- UniSTS:28103

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in cardiac muscle cell development	IEA Inferred from Electronic Annotation more info
involved_in gene expression	IEA Inferred from Electronic Annotation more info
involved_in glucose homeostasis	IEA Inferred from Electronic Annotation more info
involved_in glucose import in response to insulin stimulus	IEA Inferred from Electronic Annotation more info
involved_in muscle organ development	IEA Inferred from Electronic Annotation more info
involved_in response to glucose	IEA Inferred from Electronic Annotation more info
involved_in vascular associated smooth muscle cell development	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
located_in cytoplasm	IEA Inferred from Electronic Annotation more info
located_in cytoskeleton	IEA Inferred from Electronic Annotation more info
part_of dystrophin-associated glycoprotein complex	IDA Inferred from Direct Assay more info	PubMed
located_in plasma membrane	TAS Traceable Author Statement more info	PubMed
part_of sarcoglycan complex	IBA Inferred from Biological aspect of Ancestor more info
is_active_in sarcolemma	IBA Inferred from Biological aspect of Ancestor more info

General protein information

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Preferred Names: beta-sarcoglycan

Names: 43 kDa dystrophin-associated glycoprotein; 43DAG; beta-SG; beta-sarcoglycan(43kD dystrophin-associated glycoprotein); limb girdle muscular dystrophy 2E (non-linked families); sarcoglycan, beta (43kDa dystrophin-associated glycoprotein)

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.