ANXA7
Annexin A7
Also known as: ANX7, ANXA7_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P20073
- Gene
- ANXA7
- Ensembl
- ENSG00000138279
- Chromosome
- 10
- Canonical length
- 488 aa
- Protein class
- Cancer-related genes, Predicted intracellular proteins
OverviewNCBI Gene
Annexin VII is a member of the annexin family of calcium-dependent phospholipid binding proteins.The Annexin VII gene contains 14 exons and spans approximately 34 kb of DNA. An alternatively spliced cassette exon results in two mRNA transcripts of 2.0 and 2.4 kb which are predicted to generate two protein isoforms differing in their N-terminal domain. The alternative splicing event is tissue specific and the mRNA containing the cassette exon is prevalent in brain, heart and skeletal muscle. The transcripts also differ in their 3'-non coding regions by the use of two alternative poly(A) signals. Annexin VII encodes a protein with a molecular weight of approximately 51 kDa with a unique, highly hydrophobic N-terminal domain of 167 amino acids and a conserved C-terminal region of 299 amino acids. The latter domain is composed of alternating hydrophobic and hydrophilic segments. Structural analysis of the protein suggests that Annexin VII is a membrane binding protein with diverse properties, including voltage-sensitive calcium channel activity, ion selectivity and membrane fusion. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
488 residues, UniProt reviewed canonical sequence.
>P20073|ANXA7
1 MSYPGYPPTG YPPFPGYPPA GQESSFPPSG QYPYPSGFPP MGGGAYPQVP SSGYPGAGGY
61 PAPGGYPAPG GYPGAPQPGG APSYPGVPPG QGFGVPPGGA GFSGYPQPPS QSYGGGPAQV
121 PLPGGFPGGQ MPSQYPGGQP TYPSQINTDS FSSYPVFSPV SLDYSSEPAT VTQVTQGTIR
181 PAANFDAIRD AEILRKAMKG FGTDEQAIVD VVANRSNDQR QKIKAAFKTS YGKDLIKDLK
241 SELSGNMEEL ILALFMPPTY YDAWSLRKAM QGAGTQERVL IEILCTRTNQ EIREIVRCYQ
301 SEFGRDLEKD IRSDTSGHFE RLLVSMCQGN RDENQSINHQ MAQEDAQRLY QAGEGRLGTD
361 ESCFNMILAT RSFPQLRATM EAYSRMANRD LLSSVSREFS GYVESGLKTI LQCALNRPAF
421 FAERLYYAMK GAGTDDSTLV RIVVTRSEID LVQIKQMFAQ MYQKTLGTMI AGDTSGDYRR
481 LLLAIVGQLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ANXA7 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
- 0
- Mean surface accessibility (rSASA)
- 0.41
- Highest tissue expression
- 227 nTPM
Expression across tissuesHPA
Tissue
- parathyroid gland: 227 nTPM
- skeletal muscle: 190 nTPM
- tongue: 130 nTPM
- liver: 118 nTPM
- kidney: 109 nTPM
- heart muscle: 106 nTPM
Single-cell type
- oocytes: 820 nCPM
- cytotrophoblasts: 285 nCPM
- esophageal suprabasal cells: 262 nCPM
- platelets: 230 nCPM
- syncytiotrophoblasts: 221 nCPM
- migrating cytotrophoblasts: 211 nCPM
Immune cell
- basophil: 189 nTPM
- total PBMC: 137 nTPM
- eosinophil: 130 nTPM
- T-reg: 128 nTPM
- myeloid DC: 101 nTPM
- neutrophil: 98 nTPM
Brain region
- hypothalamus: 81 nTPM
- white matter: 79 nTPM
- cerebral cortex: 74 nTPM
- spinal cord: 73 nTPM
- hippocampal formation: 72 nTPM
- basal ganglia: 71 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)
- 0.94
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.4
- DepMap mean gene effect
- -0.03
- 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
- autophagy
- epithelial cell differentiation
- membrane fusion
- negative regulation of gene expression
- response to calcium ion
- response to phorbol 13-acetate 12-myristate
Molecular functions
- calcium ion binding
- calcium-dependent phospholipid binding
- calcium-dependent protein binding
- integrin binding
- phosphatidylserine binding
- RNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ANXA7 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 ANXA7 as an antibody target. Whether an autoantibody or antibody against ANXA7 could matter depends on whether native ANXA7 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ANXA7 is annotated at the cell surface, where native ANXA7 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 ANXA7 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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