Reviewed,
UniProtKB/Swiss-Prot P51816 (AFF2_HUMAN)
Last modified
July 22, 2008.
Version 63.
History...
Clusters with 100%,
90%,
50% identity |
Documents (6) |
Third-party data |
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Names and origin
| Protein names | Recommended name: AF4/FMR2 family member 2 Alternative name(s): Fragile X mental retardation 2 protein Short name=Protein FMR-2 Short name=FMR2P Protein Ox19 Fragile X E mental retardation syndrome protein | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 1311 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Tissue specificity | Brain (most abundant in hippocampus and amygdala), placenta and lung. |
| Involvement in disease | Defects in AFF2 are the cause of FRAXE [MIM:309548]. FRAXE is an X-linked form of mental retardation. Loss of FMR2 expression is correlated with FRAXE CCG(N) expansion. Normal individuals have 6-35 copies of the repeat, whereas cytogenetically positive, developmentally delayed males have more than 200 copies and show methylation of the associated CPG island. |
| Sequence similarities | Belongs to the AF4 family. |
Ontologies
Keywords | |
|---|---|
| Coding sequence diversity | Alternative splicing Polymorphism Triplet repeat expansion |
| Disease | Disease mutation Mental retardation |
Gene Ontology (GO) | |
| Biological process | brain development Ref.2 Traceable author statement. Source: ProtInc |
| Complete GO annotation... | |
Alternative products
| This entry describes 4 isoforms produced by alternative splicing. [Align] [Select] Notes: Additional isoforms seem to exist. | |||||
| Isoform 1 (identifier: P51816-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | |||||
| Isoform 2 (identifier: P51816-2) The sequence of this isoform differs from the canonical sequence as follows: 57-60: Missing. 364-392: Missing. 416-421: Missing. | |||||
| Isoform 3 (identifier: P51816-3) The sequence of this isoform differs from the canonical sequence as follows: 57-60: Missing. 364-392: Missing. 970-971: Missing. | |||||
| Isoform 4 (identifier: P51816-4) The sequence of this isoform differs from the canonical sequence as follows: 57-60: Missing. 364-392: Missing. 416-421: Missing. 466-466: N → K 467-1311: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | ||||
Molecule processing | ||||||||
|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1311 | 1311 | AF4/FMR2 family member 2 | |||||
Natural variations | ||||||||
| Alternative sequence | 57 – 60 | 4 | Missing in isoform 2, isoform 3 and isoform 4. | |||||
| Alternative sequence | 364 – 392 | 29 | Missing in isoform 2, isoform 3 and isoform 4. | |||||
| Alternative sequence | 416 – 421 | 6 | Missing in isoform 2 and isoform 4. | |||||
| Alternative sequence | 466 | 1 | N → K in isoform 4. | |||||
| Alternative sequence | 467 – 1311 | 845 | Missing in isoform 4. | |||||
| Alternative sequence | 970 – 971 | 2 | Missing in isoform 3. | |||||
| Natural variant | 1185 | 1 | L → M: dbSNP rs12858959. | |||||
Experimental info | ||||||||
| Sequence conflict | 195 | 1 | D → A in CAA64730. Ref.3 | |||||
| Sequence conflict | 470 | 1 | A → V in AAA99416. Ref.2 | |||||
| Sequence conflict | 548 | 1 | Q → P Ref.1 Ref.2 Ref.4 | |||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Identification of the gene FMR2, associated with FRAXE mental retardation." Gecz J., Gedeon A.K., Sutherland G.R., Mulley J.C. Nat. Genet. 13:105-108(1996) [PubMed: 8673085] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). Tissue: Fetal brain and Placenta. |
| [2] | "Identification of FMR2, a novel gene associated with the FRAXE CCG repeat and CpG island." Gu Y., Shen Y., Gibbs R.A., Nelson D.L. Nat. Genet. 13:109-113(1996) [PubMed: 8673086] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 3). Tissue: Brain. |
| [3] | "A candidate gene for mild mental handicap at the FRAXE fragile site." Chakrabarti L., Knight S.J.L., Flannery A.V., Davies K.E. Hum. Mol. Genet. 5:275-282(1996) [PubMed: 8824884] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 4). Tissue: Fetal brain. |
| [4] | "Gene structure and subcellular localization of FMR2, a member of a new family of putative transcription activators." Gecz J., Bielby S., Sutherland G.R., Mulley J.C. Genomics 44:201-213(1997) [PubMed: 9299237] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORM 1). |
| [5] | "Expression of the murine homologue of FMR2 in mouse brain and during development." Chakrabarti L., Bristulf J., Foss G.S., Davies K.E. Hum. Mol. Genet. 7:441-448(1998) [PubMed: 9467002] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2). Tissue: Brain. |
| [6] | "The DNA sequence of the human X chromosome." Ross M.T., Grafham D.V., Coffey A.J., Scherer S., McLay K., Muzny D., Platzer M., Howell G.R., Burrows C., Bird C.P., Frankish A., Lovell F.L., Howe K.L., Ashurst J.L., Fulton R.S., Sudbrak R., Wen G., Jones M.C. Bentley D.R.Nature 434:325-337(2005) [PubMed: 15772651] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [7] | Wang L., Thibodeau S.N. Submitted (APR-1999) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 348-421 (ISOFORM 1). |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| U48436 mRNA. Translation: AAC82513.1. L76569 mRNA. Translation: AAA99416.1. X95463 mRNA. Translation: CAA64730.1. AF012624 AF012623 Genomic DNA. Translation: AAB71534.1. AJ001550 mRNA. Translation: CAA04822.1. AC005731 Genomic DNA. Translation: AAB69976.1. AC015552 Genomic DNA. No translation available. AC006516 Genomic DNA. No translation available. AC002368 Genomic DNA. No translation available. AF139979, AF139977, AF139978 Genomic DNA. Translation: AAD45878.1. | |
| RefSeq | NP_002016.2. |
| UniGene | Hs.496911 |
3D structure databases | |
| ModBase | Search... |
PTM databases | |
| PhosphoSite | P51816. |
Genome annotation databases | |
| Ensembl | ENSG00000155966. Homo sapiens. [Contig view] |
| GeneID | 2334. |
| KEGG | hsa:2334. |
| NMPDR | fig|9606.3.peg.33508. |
Organism-specific databases | |
| H-InvDB | HIX0056108. |
| HGNC | HGNC:3776. AFF2. |
| HPA | HPA003139. |
| MIM | 309548. gene+phenotype. |
| PharmGKB | PA28192. |
| GenAtlas | Search... |
| GeneCards | Search... |
Phylogenomic databases | |
| HOVERGEN | P51816. |
Gene expression databases | |
| ArrayExpress | P51816. |
| CleanEx | HS_AFF2. |
| GermOnline | ENSG00000155966. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR007797. AF-4. [Graphical view] |
| PANTHER | PTHR10528. AF-4. 1 hit. |
| Pfam | PF05110. AF-4. 1 hit. [Graphical view] |
| ProDom | P51816. [Graphical view] [Entries sharing at least one domain] |
| BLOCKS | Search... |
Other Resources | |
| SOURCE | Search... |
| ProtoNet | Search... |
Entry information
| Entry name | AFF2_HUMAN | ||||||||
| Accession | Primary (citable) accession number: P51816 Secondary accession number(s): O43786 Q9UNA5 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
Relevant documents
| Human chromosome X Human chromosome X: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| UniProtKB secondary accession numbers Index of UniProtKB secondary accession numbers |
| SIMILARITY comments Index of protein domains and families |

Clusters with


