This gene encodes a protein with similarity to members of the myosin light chain kinase family. This protein family is required for myocyte cytoskeletal development. Along with the desmin gene, expression of this gene may be controlled by the desmin locus control region. Mutations in this gene are associated with centronuclear myopathy 5. [provided by RefSeq, Jun 2016] See more...

Aliases for SPEG Gene

Aliases for SPEG Gene

  • Striated Muscle Enriched Protein Kinase 2 3 5
  • Striated Muscle Preferentially Expressed Protein Kinase 2 3 4
  • Aortic Preferentially Expressed Protein 1 3 4
  • Aortic Preferentially Expressed Gene 1 2 3
  • SPEG Complex Locus 2 3
  • EC 4 50
  • SPEGalpha 2 3
  • SPEGbeta 2 3
  • KIAA1297 2 4
  • APEG-1 3 4
  • APEG1 3 4
  • MYLK6 2 3
  • BPEG 2 3
  • Nuclear Protein, Marker For Differentiated Aortic Smooth Muscle And Down-Regulated With Vascular Injury 3
  • EC 2.7.11 50
  • MGC12676 2
  • CNM5 3
  • SPEG 5

External Ids for SPEG Gene

Previous HGNC Symbols for SPEG Gene

  • APEG1

Previous GeneCards Identifiers for SPEG Gene

  • GC02P220007
  • GC02P220299
  • GC02P212152

Summaries for SPEG Gene

Entrez Gene Summary for SPEG Gene

  • This gene encodes a protein with similarity to members of the myosin light chain kinase family. This protein family is required for myocyte cytoskeletal development. Along with the desmin gene, expression of this gene may be controlled by the desmin locus control region. Mutations in this gene are associated with centronuclear myopathy 5. [provided by RefSeq, Jun 2016]

GeneCards Summary for SPEG Gene

SPEG (Striated Muscle Enriched Protein Kinase) is a Protein Coding gene. Diseases associated with SPEG include Myopathy, Centronuclear, 5 and Myopathy, Centronuclear, 2. Gene Ontology (GO) annotations related to this gene include transferase activity, transferring phosphorus-containing groups and protein tyrosine kinase activity. An important paralog of this gene is HMCN1.

UniProtKB/Swiss-Prot Summary for SPEG Gene

  • Isoform 3 may have a role in regulating the growth and differentiation of arterial smooth muscle cells.

Gene Wiki entry for SPEG Gene

No data available for CIViC Summary , Tocris Summary , PharmGKB "VIP" Summary , Rfam classification and piRNA Summary for SPEG Gene

Genomics for SPEG Gene

GeneHancer (GH) Regulatory Elements Pubs

Promoters and enhancers for SPEG Gene
GeneHancer (GH) Identifier GH Type GH
GH Sources Gene Association Score Total Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor
Binding Sites
Gene Targets
GH02J219457 Promoter/Enhancer 1.8 EPDnew Ensembl ENCODE CraniofacialAtlas dbSUPER 263.6 +25.6 25632 4.5 IKZF1 ZNF592 ZIC2 CTCF REST SIN3A THAP11 RAD21 SMC3 ETV4 SPEG GMPPA ASIC4 ASIC4-AS1 DES OBSL1 PTPRN lnc-DES-2 HSALNG0022382 ENSG00000286143
GH02J219433 Promoter/Enhancer 1.2 Ensembl ENCODE dbSUPER 261.2 +0.6 585 2.8 ZNF654 IKZF1 REST CTCF YY1 RAD21 HLTF ZNF189 HDAC2 TAF1 SPEG HSALNG0022379 ENSG00000269068 ASIC4 ENSG00000286143
GH02J219397 Promoter/Enhancer 1.4 Ensembl ENCODE dbSUPER 11.3 -34.8 -34813 2.9 ZNF600 ATF2 CEBPA JUND ZIC2 YY1 FOXA1 FEZF1 ZEB1 ZNF217 DNPEP ASIC4 ASIC4-AS1 SPEG GMPPA GLB1L RF00951-079 lnc-DES-4 LOC105373884 ENSG00000229525
GH02J219537 Enhancer 0.9 ENCODE CraniofacialAtlas 12 +104.3 104317 2.4 KLF9 ZIC2 KLF11 THRB RBM22 FOSL2 SOX5 CTCF EGR1 RBPJ ASIC4 ASIC4-AS1 GMPPA SPEG OBSL1 CHPF TMEM198
GH02J219465 Enhancer 0.6 Ensembl dbSUPER 13.6 +31.6 31586 0.4 ZBTB33 NFATC1 ZSCAN4 KDM1A TARDBP MNT GMPPA SPEG DES ASIC4 ASIC4-AS1 OBSL1 HSALNG0022382 ENSG00000286143 lnc-DES-2
- Elite GeneHancer and/or Elite GeneHancer-gene association Download GeneHancer data from 2017 publication | Request up-to-date GeneHancer data (full dataset)

GeneHancers around SPEG on the GeneHancer Hub at the UCSC Golden Path

Cistromic (ChIP-Seq) regulation report from SPP (The Signaling Pathways Project) for SPEG

Top Transcription factor binding sites by QIAGEN in the SPEG gene promoter:
  • AP-1
  • MyoD
  • p53
  • TBP

Genomic Locations for SPEG Gene

Latest Assembly
59,415 bases
Plus strand

Previous Assembly
(GRCh37/hg19 by Entrez Gene)
58,787 bases
Plus strand

(GRCh37/hg19 by Ensembl)
63,442 bases
Plus strand

Genomic View for SPEG Gene

Genes around SPEG on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
SPEG Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for SPEG Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for SPEG Gene

Proteins for SPEG Gene

  • Protein details for SPEG Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Striated muscle preferentially expressed protein kinase
    Protein Accession:
    Secondary Accessions:
    • A8K0G6
    • A8MRU0
    • Q27J74
    • Q695L1
    • Q6FGA6
    • Q6ZQW1
    • Q6ZTL8
    • Q9P2P9

    Protein attributes for SPEG Gene

    3267 amino acids
    Molecular mass:
    354289 Da
    Quaternary structure:
    • Interacts with MTM1. Isoform 3 is found as a monomer or homodimer.
    • Sequence=AAY15052.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305}; Sequence=ABD61734.1; Type=Frameshift; Evidence={ECO:0000305};
    • Expression is under the tight control of the locus control region (LCRs).
    • [Isoform 3]: Produced by alternative promoter usage.
    • [Isoform 1]: Produced by alternative splicing.

    Three dimensional structures from OCA and Proteopedia for SPEG Gene

    Alternative splice isoforms for SPEG Gene


neXtProt entry for SPEG Gene

Selected DME Specific Peptides for SPEG Gene


Post-translational modifications for SPEG Gene

Domains & Families for SPEG Gene

Gene Families for SPEG Gene

Human Protein Atlas (HPA):
  • Disease related genes
  • Enzymes
  • Potential drug targets
  • Predicted intracellular proteins

Suggested Antigen Peptide Sequences for SPEG Gene

GenScript: Design optimal peptide antigens:
  • Aortic preferentially expressed protein 1 (SPEG_HUMAN)

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family.
  • Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family.
genes like me logo Genes that share domains with SPEG: view

Function for SPEG Gene

Molecular function for SPEG Gene

UniProtKB/Swiss-Prot Function:
Isoform 3 may have a role in regulating the growth and differentiation of arterial smooth muscle cells.
UniProtKB/Swiss-Prot CatalyticActivity:
Reaction=ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-[protein]; Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA-COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616, ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=;.
UniProtKB/Swiss-Prot CatalyticActivity:
Reaction=ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-threonyl-[protein]; Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060, Rhea:RHEA-COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013, ChEBI:CHEBI:30616, ChEBI:CHEBI:61977, ChEBI:CHEBI:456216; EC=;.
UniProtKB/Swiss-Prot Induction:
Isoform 3 is quickly down-regulated in response to vascular injury, when ASMC cells change from a quiescent to a proliferative phenotype.

Enzyme Numbers (IUBMB) for SPEG Gene

Phenotypes From GWAS Catalog for SPEG Gene

Gene Ontology (GO) - Molecular Function for SPEG Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000166 nucleotide binding IEA --
GO:0004672 protein kinase activity IBA 21873635
GO:0004674 protein serine/threonine kinase activity IEA --
GO:0005515 protein binding IPI 25416956
GO:0005524 ATP binding IEA --
genes like me logo Genes that share ontologies with SPEG: view
genes like me logo Genes that share phenotypes with SPEG: view

Human Phenotype Ontology for SPEG Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Models for SPEG Gene

MGI Knock Outs for SPEG:
  • Speg Speg<tm1Mkap>
  • Speg Speg<tm1b(KOMP)Wtsi>

Animal Models for research

  • Taconic Biosciences Mouse Models for SPEG

Inhibitory RNAs for research

  • Search GeneCopoeia for shRNA, lentivirus and/or AAV clone products for SPEG

No data available for miRNA , Transcription Factor Targets and HOMER Transcription for SPEG Gene

Localization for SPEG Gene

Subcellular locations from UniProtKB/Swiss-Prot for SPEG Gene

[Isoform 3]: Nucleus.

Subcellular locations from

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for SPEG gene
Compartment Confidence
nucleus 5
plasma membrane 3
cytosol 3
extracellular 1
cytoskeleton 1
mitochondrion 1
endoplasmic reticulum 1
lysosome 1

Subcellular locations from the

Human Protein Atlas (HPA)

Gene Ontology (GO) - Cellular Components for SPEG Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005634 nucleus TAS,IEA --
genes like me logo Genes that share ontologies with SPEG: view

Pathways & Interactions for SPEG Gene

PathCards logo

SuperPathways for SPEG Gene

No Data Available

Gene Ontology (GO) - Biological Process for SPEG Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006468 protein phosphorylation IEA --
GO:0007517 muscle organ development TAS 8663449
GO:0008285 negative regulation of cell proliferation TAS 8663449
GO:0016310 phosphorylation IEA --
GO:0030154 cell differentiation IEA --
genes like me logo Genes that share ontologies with SPEG: view

No data available for Pathways by source and SIGNOR curated interactions for SPEG Gene

Drugs & Compounds for SPEG Gene

No Compound Related Data Available

Transcripts for SPEG Gene

mRNA/cDNA for SPEG Gene

16 NCBI additional mRNA sequence :
22 Ensembl transcripts including schematic representations, and UCSC links to gene/alias where relevant :

Inhibitory RNAs for research

  • Search GeneCopoeia for shRNA, lentivirus and/or AAV clone products for SPEG

Alternative Splicing Database (ASD) splice patterns (SP) for SPEG Gene

No ASD Table

Relevant External Links for SPEG Gene

GeneLoc Exon Structure for

Expression for SPEG Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and SAGE for SPEG Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for SPEG Gene

This gene is overexpressed in Artery - Tibial (x4.9), Muscle - Skeletal (x4.8), Artery - Aorta (x4.8), and Colon - Sigmoid (x4.0).

Protein differential expression in normal tissues from HIPED for SPEG Gene

This gene is overexpressed in Ovary (28.0) and Heart (6.3).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, MaxQB, and MOPED for SPEG Gene

Transcriptomic regulation report from SPP (The Signaling Pathways Project) for SPEG

SOURCE GeneReport for Unigene cluster for SPEG Gene:


mRNA Expression by UniProt/SwissProt for SPEG Gene:

Tissue specificity: Isoform 1 is preferentially expressed in striated muscle. Non-kinase form such as isoform 3 is predominantly expressed in the aorta. Isoform 3 appears to be expressed only in highly differentiated ASMC in normal vessel walls and down-regulated in dedifferentiated ASMC in vivo. In response to vascular injuries ASMC dedifferentiate and change from a quiescent and contractile phenotype to a proliferative and synthetic phenotype. This proliferation of vascular smooth muscle cells is one of the most prominent features of atherosclerosis.

Evidence on tissue expression from TISSUES for SPEG Gene

  • Nervous system(4.8)
  • Muscle(3.6)
  • Heart(2.3)

Phenotype-based relationships between genes and organs from Gene ORGANizer for SPEG Gene

Germ Layers:
  • ectoderm
  • endoderm
  • mesoderm
  • cardiovascular
  • digestive
  • integumentary
  • nervous
  • respiratory
  • skeletal muscle
  • skeleton
Head and neck:
  • brain
  • chin
  • cranial nerve
  • ear
  • eye
  • eyelid
  • face
  • head
  • jaw
  • larynx
  • lip
  • mandible
  • maxilla
  • mouth
  • neck
  • skull
  • vocal cord
  • heart
  • heart valve
  • lung
  • rib
  • rib cage
  • pelvis
  • ankle
  • arm
  • digit
  • elbow
  • femur
  • finger
  • foot
  • forearm
  • hand
  • hip
  • knee
  • lower limb
  • shin
  • shoulder
  • thigh
  • toe
  • upper limb
  • wrist
  • peripheral nerve
  • peripheral nervous system
  • skin
  • spinal column
  • spinal cord
  • vertebrae
genes like me logo Genes that share expression patterns with SPEG: view

Primer products for research

No data available for Protein tissue co-expression partners for SPEG Gene

Orthologs for SPEG Gene

This gene was present in the common ancestor of animals and fungi.

Orthologs for SPEG Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia SPEG 29 30
  • 97.91 (n)
(Bos Taurus)
Mammalia SPEG 29 30
  • 89.89 (n)
(Canis familiaris)
Mammalia SPEG 29 30
  • 88.99 (n)
(Mus musculus)
Mammalia Speg 29 16 30
  • 87.24 (n)
(Rattus norvegicus)
Mammalia Speg 29
  • 87.22 (n)
(Monodelphis domestica)
Mammalia SPEG 30
  • 81 (a)
(Ornithorhynchus anatinus)
Mammalia -- 30
  • 35 (a)
(Gallus gallus)
Aves SPEG 29 30
  • 71.23 (n)
(Anolis carolinensis)
Reptilia SPEG 30
  • 53 (a)
Tropical Clawed Frog
(Silurana tropicalis)
Amphibia speg 29
  • 57.95 (n)
(Danio rerio)
Actinopterygii si:ch211-195m20.1 29
  • 56.5 (n)
SPEG (1 of 2) 30
  • 45 (a)
speg 30
  • 41 (a)
(Caenorhabditis elegans)
Secernentea unc-22 30
  • 4 (a)
Baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes MEK1 30
  • 23 (a)
Species where no ortholog for SPEG was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Eremothecium gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • Alpha proteobacteria (Wolbachia pipientis)
  • Amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • Barley (Hordeum vulgare)
  • Beta proteobacteria (Neisseria meningitidis)
  • Bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • Common water flea (Daphnia pulex)
  • Corn (Zea mays)
  • E. coli (Escherichia coli)
  • Filamentous fungi (Aspergillus nidulans)
  • Firmicute Bacteria (Streptococcus pneumoniae)
  • Fission Yeast (Schizosaccharomyces pombe)
  • Fruit Fly (Drosophila melanogaster)
  • Green Algae (Chlamydomonas reinhardtii)
  • Honey Bee (Apis mellifera)
  • K. Lactis Yeast (Kluyveromyces lactis)
  • Loblloly Pine (Pinus taeda)
  • Malaria Parasite (Plasmodium falciparum)
  • Medicago Trunc (Medicago Truncatula)
  • Moss (Physcomitrella patens)
  • Orangutan (Pongo pygmaeus)
  • Pig (Sus scrofa)
  • Rainbow Trout (Oncorhynchus mykiss)
  • Rice (Oryza sativa)
  • Rice Blast Fungus (Magnaporthe grisea)
  • Schistosome Parasite (Schistosoma mansoni)
  • Sea Anemone (Nematostella vectensis)
  • Sea Vase (Ciona intestinalis)
  • Sea Squirt (Ciona savignyi)
  • Sea Urchin (Strongylocentrotus purpuratus)
  • Sorghum (Sorghum bicolor)
  • Soybean (Glycine max)
  • Stem Rust Fungus (Puccinia graminis)
  • Sugarcane (Saccharum officinarum)
  • Thale Cress (Arabidopsis thaliana)
  • Tomato (Lycopersicon esculentum)
  • Toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • Wheat (Triticum aestivum)

Evolution for SPEG Gene

Gene Tree for SPEG (if available)
Gene Tree for SPEG (if available)
Evolutionary constrained regions (ECRs) for SPEG: view image
Alliance of Genome Resources:
Additional Orthologs for SPEG

Paralogs for SPEG Gene

Paralogs for SPEG Gene

(20) SIMAP similar genes for SPEG Gene using alignment to 10 proteins:

  • B9A038_HUMAN
  • C9J8D8_HUMAN
  • G5E9J7_HUMAN
  • H0Y3W0_HUMAN
  • H7C3Y5_HUMAN
genes like me logo Genes that share paralogs with SPEG: view

Variants for SPEG Gene

Sequence variations, with clinical significance, from ClinVar and Humsavar, with links to dbSNP for SPEG Gene

SNP ID Clinical significance and condition Chr 02 pos Variation AA Info Type
1021848 Uncertain Significance: not provided 219,472,253(+) G/A
NM_005876.5(SPEG):c.3862G>A (p.Ala1288Thr)
1028948 Uncertain Significance: Myopathy, centronuclear, 5 219,467,426(+) C/T
NM_005876.5(SPEG):c.3134C>T (p.Thr1045Met)
1028949 Pathogenic: Myopathy, centronuclear, 5 219,435,308(+) C/T
NM_005876.5(SPEG):c.331C>T (p.Gln111Ter)
1028950 Uncertain Significance: Myopathy, centronuclear, 5 219,472,947(+) C/T
NM_005876.5(SPEG):c.3998C>T (p.Thr1333Met)
1028951 Uncertain Significance: Myopathy, centronuclear, 5 219,444,682(+) G/A
NM_005876.5(SPEG):c.418G>A (p.Asp140Asn)

dbSNP identifiers (rs#s) for variants without ClinVar clinical significance for SPEG Gene

All consequence types are included: molecular consequences (e.g. missense, synonymous), and location-based (e.g. intron, upstream).

Structural Variations from Database of Genomic Variants (DGV) for SPEG Gene

Variant ID Type Subtype PubMed ID
esv2721485 CNV deletion 23290073
esv2721486 CNV deletion 23290073
esv3026745 CNV deletion 24192839
nsv1071648 CNV deletion 25765185
nsv1112778 CNV deletion 24896259
nsv1136473 CNV deletion 24896259
nsv1150236 CNV deletion 26484159
nsv213401 CNV deletion 16902084
nsv470518 CNV loss 18288195
nsv508886 CNV insertion 20534489
nsv520958 CNV loss 19592680
nsv584502 CNV gain 21841781
nsv834544 CNV loss 17160897

Variation tolerance for SPEG Gene

Residual Variation Intolerance Score: 26.9% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 20.31; 99.07% of all genes are more intolerant (likely to be disease-causing)

Additional Variant Information for SPEG Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for
Leiden Open Variation Database (LOVD)

SNP Genotyping and Copy Number Assays for research

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for SPEG Gene

Disorders for SPEG Gene

MalaCards: The human disease database

(9) MalaCards diseases for SPEG Gene - From: OMI, CVR, GTR, ORP, SWI, COP, and GCD

Disorder Aliases PubMed IDs
myopathy, centronuclear, 5
  • cnm5
myopathy, centronuclear, 2
  • cnm2
centronuclear myopathy
  • myotubular myopathy
  • muscular diseases
scarlet fever
  • scarlatina
- elite association - COSMIC cancer census association via MalaCards
Search SPEG in MalaCards View complete list of genes associated with diseases


  • Myopathy, centronuclear, 5 (CNM5) [MIM:615959]: A form of centronuclear myopathy, a congenital muscle disorder characterized by progressive muscular weakness and wasting involving mainly limb girdle, trunk, and neck muscles. It may also affect distal muscles. Weakness may be present during childhood or adolescence or may not become evident until the third decade of life. Ptosis is a frequent clinical feature. The most prominent histopathologic features include high frequency of centrally located nuclei in muscle fibers not secondary to regeneration, radial arrangement of sarcoplasmic strands around the central nuclei, and predominance and hypotrophy of type 1 fibers. CNM5 features include severe neonatal hypotonia with respiratory insufficiency, difficulty feeding, and delayed motor development. Some patients die in infancy, and some develop dilated cardiomyopathy. {ECO:0000269 PubMed:25087613}. Note=The disease is caused by variants affecting the gene represented in this entry.

Additional Disease Information for SPEG

Human Genome Epidemiology Navigator
ATLAS of Genetics and Cytogenetics in Oncology and Haematology
Open Targets Platform
Open Targets Platform
genes like me logo Genes that share disorders with SPEG: view

No data available for Genatlas for SPEG Gene

Publications for SPEG Gene

  1. APEG-1, a novel gene preferentially expressed in aortic smooth muscle cells, is down-regulated by vascular injury. (PMID: 8663449) Hsieh CM … Lee ME (The Journal of biological chemistry 1996) 2 3 4 22
  2. SPEG interacts with myotubularin, and its deficiency causes centronuclear myopathy with dilated cardiomyopathy. (PMID: 25087613) Agrawal PB … Beggs AH (American journal of human genetics 2014) 3 4 72
  3. The human desmin locus: gene organization and LCR-mediated transcriptional control. (PMID: 16545539) Tam JL … Antoniou M (Genomics 2006) 3 4 22
  4. Striated muscle preferentially expressed genes alpha and beta are two serine/threonine protein kinases derived from the same gene as the aortic preferentially expressed gene-1. (PMID: 10973969) Hsieh CM … Lee ME (The Journal of biological chemistry 2000) 2 3 22
  5. SPEG (Striated Muscle Preferentially Expressed Protein Kinase) Is Essential for Cardiac Function by Regulating Junctional Membrane Complex Activity. (PMID: 27729468) Quick AP … Wehrens XH (Circulation research 2017) 2 3

Products for SPEG Gene

Sources for SPEG Gene