UniProtKB/Swiss-Prot P05549: Variant p.Gly262Glu

Transcription factor AP-2-alpha
Gene: TFAP2A
Chromosomal location: 6p24
Variant information

Variant position:  262
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Disease [Disclaimer]
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants have been found in patients and disease-association is reported in literature. However, this classification is not a definitive assessment of variant pathogenicity.
  • Polymorphism: No disease-association has been reported.
  • Unclassified: Variants have been found in patients but disease-association remains unclear.

Residue change:  From Glycine (G) to Glutamate (E) at position 262 (G262E, p.Gly262Glu).
Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.

Physico-chemical properties:  Change from glycine (G) to medium size and acidic (E)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -2
The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page

Involvement in disease:  Branchiooculofacial syndrome (BOFS) [MIM:113620]: A syndrome characterized by growth retardation, bilateral branchial sinus defects with hemangiomatous, scarred skin, cleft lip with or without cleft palate, pseudocleft of the upper lip, nasolacrimal duct obstruction, low set ears with posterior rotation, a malformed, asymmetrical nose with a broad bridge and flattened tip, conductive or sensorineural deafness, ocular and renal anomalies. Note=The disease is caused by mutations affecting the gene represented in this entry.
The name and a short description of the disease associated with the variant. For more information about the disease, the user can refer to OMIM, following the link provided after the disease acronym.

Variant description:  In BOFS.
Any additional useful information about the variant.



Sequence information

Variant position:  262
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  437
The length of the canonical sequence.

Location on the sequence:   ECLNASLLGGVLRRAKSKNG  G RSLREKLDKIGLNLPAGRRK
The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.

Residue conservation: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         ECLNASLLGGVLRRAKSKNGGRSLREKLDKIGL-------NLPAGRRK

Mouse                         ECLNASLLGGVLRRAKSKNGGRSLREKLDKIGL-------N

Rat                           ECLNASLLGGVLRRAKSKNGGRSLREKLDKIGL-------N

Bovine                        ECLNASLLGGVLRRAKSKNGGRSLREKLDKIGL-------N

Sheep                         ECLNASLLGGVLRRAKSKNGGRSLREKLDKIGL-------N

Drosophila                    VINREEVQGYAAKTVFEALQAPACHENMVKVGGYILGEFGN

Baker's yeast                 VVNNPSLHRITCERLVDYLCKKQASEAIIKAAAFLLGEYSS

Fission yeast                 IVNNEEIQEYATKRLFSLLQSETIHECLVKAGGYVLGEFGH

Sequence annotation in neighborhood:  
The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.

TypePositionsDescription
Chain 1 – 437 Transcription factor AP-2-alpha


Literature citations

TFAP2A mutations result in branchio-oculo-facial syndrome.
Milunsky J.M.; Maher T.A.; Zhao G.; Roberts A.E.; Stalker H.J.; Zori R.T.; Burch M.N.; Clemens M.; Mulliken J.B.; Smith R.; Lin A.E.;
Am. J. Hum. Genet. 82:1171-1177(2008)
Cited for: VARIANTS BOFS PRO-249; GLY-254; GLY-255 AND GLU-262;

Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.