GUCY2F
Retinal guanylyl cyclase 2
Also known as: CYGF, GC-F, GUC2DL, GUC2F_HUMAN, RetGC-2, ROS-GC2
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P51841
- Gene
- GUCY2F
- Ensembl
- ENSG00000101890
- Chromosome
- X
- Canonical length
- 1108 aa
- Protein class
- Enzymes, Metabolic proteins, Plasma proteins, Predicted membrane proteins
- Quaternary structure
- Homodimer
OverviewNCBI Gene
The protein encoded by this gene is a guanylyl cyclase found predominantly in photoreceptors in the retina. The encoded protein is thought to be involved in resynthesis of cGMP after light activation of the visual signal transduction cascade, allowing a return to the dark state. This protein is a single-pass type I membrane protein. Defects in this gene may be a cause of X-linked retinitis pigmentosa. [provided by RefSeq, Dec 2008]
Canonical amino-acid sequenceUniProt
1108 residues, UniProt reviewed canonical sequence.
>P51841|GUCY2F
1 MFLGLGRFSR LVLWFAAFRK LLGHHGLASA KFLWCLCLLS VMSLPQQVWT LPYKIGVVGP
61 WACDSLFSKA LPEVAARLAI ERINRDPSFD LSYSFEYVIL NEDCQTSRAL SSFISHHQMA
121 SGFIGPTNPG YCEAASLLGN SWDKGIFSWA CVNYELDNKI SYPTFSRTLP SPIRVLVTVM
181 KYFQWAHAGV ISSDEDIWVH TANRVASALR SHGLPVGVVL TTGQDSQSMR KALQRIHQAD
241 RIRIIIMCMH SALIGGETQM HLLECAHDLK MTDGTYVFVP YDALLYSLPY KHTPYRVLRN
301 NPKLREAYDA VLTITVESQE KTFYQAFTEA AARGEIPEKL EFDQVSPLFG TIYNSIYFIA
361 QAMNNAMKEN GQAGAASLVQ HSRNMQFHGF NQLMRTDSNG NGISEYVILD TNLKEWELHS
421 TYTVDMEMEL LRFGGTPIHF PGGRPPRADA KCWFAEGKIC HGGIDPAFAM MVCLTLLIAL
481 LSINGFAYFI RRRINKIQLI KGPNRILLTL EDVTFINPHF GSKRGSRASV SFQITSEVQS
541 GRSPRLSFSS GSLTPATYEN SNIAIYEGDW VWLKKFSLGD FGDLKSIKSR ASDVFEMMKD
601 LRHENINPLL GFFYDSGMFA IVTEFCSRGS LEDILTNQDV KLDWMFKSSL LLDLIKGMKY
661 LHHREFVHGR LKSRNCVVDG RFVLKVTDYG FNDILEMLRL SEEESSMEEL LWTAPELLRA
721 PRGSRLGSFA GDVYSFAIIM QEVMVRGTPF CMMDLPAQEI INRLKKPPPV YRPVVPPEHA
781 PPECLQLMKQ CWAEAAEQRP TFDEIFNQFK TFNKGKKTNI IDSMLRMLEQ YSSNLEDLIR
841 ERTEELEIEK QKTEKLLTQM LPPSVAESLK KGCTVEPEGF DLVTLYFSDI VGFTTISAMS
901 EPIEVVDLLN DLYTLFDAII GSHDVYKVET IGDAYMVASG LPKRNGSRHA AEIANMSLDI
961 LSSVGTFKMR HMPEVPVRIR IGLHSGPVVA GVVGLTMPRY CLFGDTVNTA SRMESTGLPY
1021 RIHVSLSTVT ILQNLSEGYE VELRGRTELK GKGTEETFWL IGKKGFMKPL PVPPPVDKDG
1081 QVGHGLQPVE IAAFQRRKAE RQLVRNKPLocalizationUniProt · AlphaFold · HPA
Whether an antibody against GUCY2F 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
- Cell surface
- Secreted
- No
- Transmembrane segments
- 1
- Mean surface accessibility (rSASA)
- 0.29
- Highest tissue expression
- 39 nTPM
Expression across tissuesHPA
Tissue
- retina: 39 nTPM
- fallopian tube: 0.2 nTPM
- testis: 0.2 nTPM
- cervix: 0.1 nTPM
- thymus: 0.1 nTPM
- adipose tissue: 0 nTPM
Single-cell type
- rod photoreceptor cells: 137 nCPM
- endometrial ciliated cells: 9.5 nCPM
- retinal horizontal cells: 6 nCPM
- thyrotrophs: 5.6 nCPM
- epicardial cells: 4.5 nCPM
- respiratory ciliated cells: 4.2 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
- hypothalamus: 0.3 nTPM
- medulla oblongata: 0.2 nTPM
- midbrain: 0.2 nTPM
- cerebral cortex: 0.1 nTPM
- pons: 0.1 nTPM
- spinal cord: 0.1 nTPM
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)
- 0.97
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.21
- DepMap mean gene effect
- 0.04
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cGMP biosynthetic process
- cGMP-mediated signaling
- detection of light stimulus involved in visual perception
- receptor guanylyl cyclase signaling pathway
- regulation of opsin-mediated signaling pathway
- visual perception
Molecular functions
- ATP binding
- GTP binding
- guanylate cyclase activity
- identical protein binding
- peptide receptor activity
- protein kinase activity
- protein-containing complex binding
- signaling receptor activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Protein kinase domain
- Adenylyl cyclase class-3/4/guanylyl cyclase
- Serine-threonine/tyrosine-protein kinase, catalytic domain
- Receptor, ligand binding region
- Protein kinase-like domain superfamily
- Haem NO binding associated
- Adenylyl cyclase class-4/guanylyl cyclase, conserved site
- Periplasmic binding protein-like I
- Nucleotide cyclase
- Cyclic nucleotide synthase
- Adenylate and Guanylate cyclase catalytic domain
- Receptor family ligand binding region
- Heme NO binding associated
- Protein tyrosine and serine/threonine kinase
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of GUCY2F 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 GUCY2F as an antibody target. Whether an autoantibody or antibody against GUCY2F could matter depends on whether native GUCY2F is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
GUCY2F is annotated at the cell surface, where native GUCY2F is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label GUCY2F as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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