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Aliases ANXA9, ANX31, annexin A9
External IDs MGI: 1923711 HomoloGene: 2643 GeneCards: ANXA9
Genetically Related Diseases
RNA expression pattern
PBB GE ANXA9 211712 s at fs.png

PBB GE ANXA9 210085 s at fs.png
More reference expression data
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 1: 150.98 – 151 Mb Chr 3: 95.3 – 95.31 Mb
PubMed search [2] [3]
View/Edit Human View/Edit Mouse

Annexin A9 is a protein that in humans is encoded by the ANXA9 gene.[4][5][6]


The annexins are a family of calcium-dependent phospholipid-binding proteins. Members of the annexin family contain 4 internal repeat domains, each of which includes a type II calcium-binding site. The calcium-binding sites are required for annexins to aggregate and cooperatively bind anionic phospholipids and extracellular matrix proteins. This gene encodes a divergent member of the annexin protein family in which all four homologous type II calcium-binding sites in the conserved tetrad core contain amino acid substitutions that ablate their function. However, structural analysis suggests that the conserved putative ion channel formed by the tetrad core is intact.[6]

Model organisms[edit]

Model organisms have been used in the study of ANXA9 function. A conditional knockout mouse line called Anxa9tm1b(EUCOMM)Wtsi was generated at the Wellcome Trust Sanger Institute.[7] Male and female animals underwent a standardized phenotypic screen[8] to determine the effects of deletion.[9][10][11][12] Additional screens performed: - In-depth immunological phenotyping[13] - in-depth bone and cartilage phenotyping[14]


  1. ^ "Diseases that are genetically associated with ANXA9 view/edit references on wikidata". 
  2. ^ "Human PubMed Reference:". 
  3. ^ "Mouse PubMed Reference:". 
  4. ^ Morgan RO, Fernandez MP (Sep 1998). "Expression profile and structural divergence of novel human annexin 31". FEBS Letters. 434 (3): 300–4. doi:10.1016/S0014-5793(98)00997-1. PMID 9742942. 
  5. ^ Morgan RO, Bell DW, Testa JR, Fernandez MP (Feb 1999). "Human annexin 31 genetic mapping and origin". Gene. 227 (1): 33–8. doi:10.1016/S0378-1119(98)00597-6. PMID 9931420. 
  6. ^ a b "Entrez Gene: ANXA9 annexin A9". 
  7. ^ Gerdin AK (2010). "The Sanger Mouse Genetics Programme: high throughput characterisation of knockout mice". Acta Ophthalmologica. 88: 925–7. doi:10.1111/j.1755-3768.2010.4142.x. 
  8. ^ a b "International Mouse Phenotyping Consortium". 
  9. ^ Skarnes WC, Rosen B, West AP, Koutsourakis M, Bushell W, Iyer V, Mujica AO, Thomas M, Harrow J, Cox T, Jackson D, Severin J, Biggs P, Fu J, Nefedov M, de Jong PJ, Stewart AF, Bradley A (Jun 2011). "A conditional knockout resource for the genome-wide study of mouse gene function". Nature. 474 (7351): 337–42. doi:10.1038/nature10163. PMC 3572410Freely accessible. PMID 21677750. 
  10. ^ Dolgin E (Jun 2011). "Mouse library set to be knockout". Nature. 474 (7351): 262–3. doi:10.1038/474262a. PMID 21677718. 
  11. ^ Collins FS, Rossant J, Wurst W (Jan 2007). "A mouse for all reasons". Cell. 128 (1): 9–13. doi:10.1016/j.cell.2006.12.018. PMID 17218247. 
  12. ^ White JK, Gerdin AK, Karp NA, Ryder E, Buljan M, Bussell JN, Salisbury J, Clare S, Ingham NJ, Podrini C, Houghton R, Estabel J, Bottomley JR, Melvin DG, Sunter D, Adams NC, Tannahill D, Logan DW, Macarthur DG, Flint J, Mahajan VB, Tsang SH, Smyth I, Watt FM, Skarnes WC, Dougan G, Adams DJ, Ramirez-Solis R, Bradley A, Steel KP (Jul 2013). "Genome-wide generation and systematic phenotyping of knockout mice reveals new roles for many genes". Cell. 154 (2): 452–64. doi:10.1016/j.cell.2013.06.022. PMC 3717207Freely accessible. PMID 23870131. 
  13. ^ a b "Infection and Immunity Immunophenotyping (3i) Consortium". 
  14. ^ a b "OBCD Consortium". 

External links[edit]

Further reading[edit]