Seroatlas · Human Serome Atlas

GYS2

Glycogen [starch] synthase, liver

Also known as: GYS2_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
P54840
Gene
GYS2
Ensembl
ENSG00000111713
Chromosome
12
Canonical length
703 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins

OverviewNCBI Gene

The protein encoded by this gene, liver glycogen synthase, catalyzes the rate-limiting step in the synthesis of glycogen - the transfer of a glucose molecule from UDP-glucose to a terminal branch of the glycogen molecule. Mutations in this gene cause glycogen storage disease type 0 (GSD-0) - a rare type of early childhood fasting hypoglycemia with decreased liver glycogen content. [provided by RefSeq, Dec 2009]

Canonical amino-acid sequenceUniProt

703 residues, UniProt reviewed canonical sequence.

>P54840|GYS2
     1  MLRGRSLSVT SLGGLPQWEV EELPVEELLL FEVAWEVTNK VGGIYTVIQT KAKTTADEWG
    61  ENYFLIGPYF EHNMKTQVEQ CEPVNDAVRR AVDAMNKHGC QVHFGRWLIE GSPYVVLFDI
   121  GYSAWNLDRW KGDLWEACSV GIPYHDREAN DMLIFGSLTA WFLKEVTDHA DGKYVVAQFH
   181  EWQAGIGLIL SRARKLPIAT IFTTHATLLG RYLCAANIDF YNHLDKFNID KEAGERQIYH
   241  RYCMERASVH CAHVFTTVSE ITAIEAEHML KRKPDVVTPN GLNVKKFSAV HEFQNLHAMY
   301  KARIQDFVRG HFYGHLDFDL EKTLFLFIAG RYEFSNKGAD IFLESLSRLN FLLRMHKSDI
   361  TVMVFFIMPA KTNNFNVETL KGQAVRKQLW DVAHSVKEKF GKKLYDALLR GEIPDLNDIL
   421  DRDDLTIMKR AIFSTQRQSL PPVTTHNMID DSTDPILSTI RRIGLFNNRT DRVKVILHPE
   481  FLSSTSPLLP MDYEEFVRGC HLGVFPSYYE PWGYTPAECT VMGIPSVTTN LSGFGCFMQE
   541  HVADPTAYGI YIVDRRFRSP DDSCNQLTKF LYGFCKQSRR QRIIQRNRTE RLSDLLDWRY
   601  LGRYYQHARH LTLSRAFPDK FHVELTSPPT TEGFKYPRPS SVPPSPSGSQ ASSPQSSDVE
   661  DEVEDERYDE EEEAERDRLN IKSPFSLSHV PHGKKKLHGE YKN

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against GYS2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.25
Highest tissue expression
163 nTPM

Expression across tissuesHPA

Tissue

  • liver: 163 nTPM
  • esophagus: 5.3 nTPM
  • vagina: 4.5 nTPM
  • cervix: 4.2 nTPM
  • adipose tissue: 2.7 nTPM
  • breast: 1.1 nTPM

Single-cell type

  • hepatocytes: 8.8 nCPM
  • esophageal apical cells: 3.1 nCPM
  • loop of henle epithelial cells: 2.3 nCPM
  • bergmann glia: 2.2 nCPM
  • proximal tubule cells: 2.1 nCPM
  • astrocytes: 1.8 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • white matter: 0.6 nTPM
  • amygdala: 0.2 nTPM
  • basal ganglia: 0.2 nTPM
  • cerebellum: 0.2 nTPM
  • cerebral cortex: 0.2 nTPM
  • hippocampal formation: 0.2 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about GYS2.

Disease | AllUniProt

Conditions GYS2 is implicated in, by any mechanism.

Disease | GeneticClinVar

46 pathogenic / likely-pathogenic of 379 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
1.13
gnomAD pLI
0
gnomAD missense Z
0.14
DepMap mean gene effect
0.13
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of GYS2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads GYS2 as an antibody target. Whether an autoantibody or antibody against GYS2 could matter depends on whether native GYS2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

GYS2 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label GYS2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/GYS2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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