UniProtKB/SwissProt variant VAR

Variant information

Variant position:

40

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

Type of variant:

US

The variants are classified into three categories: LP/P, LB/B and US.

LP/P: likely pathogenic or pathogenic.
LB/B: likely benign or benign.
US: uncertain significance

Residue change:

From Glutamate (E) to Lysine (K) at position 40 (E40K, p.Glu40Lys).

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 medium size and acidic (E) to large size and basic (K)

The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:

1

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

Variant description:

Found in patients with hemolytic anemia; unknown pathological significance; Montefiore.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs45562031 [ dbSNP | Ensembl ]

Sequence information

Variant position:

40

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

Protein sequence length:

911

The length of the canonical sequence.

Location on the sequence:

EYEDPDIPESQMEEPAAHDT E ATATDYHTTSHPGTHKVYVE

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                         EYEDPD---IPESQMEEPAAHDTEATATDY----HTTSHPGTHKVYVE

Mouse                         AYRDLT---IPVTEMQDPEALPTEQTATDYVPSSTSTPHPS

Rat                           AYRDLD---IPVTEMQESEALPTEQTATDYIPTSTSTSHPS

Chicken                       GYEDTKGSRTSLGTMSNPLVSDVDLEAAGS---RQPTAHRD

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.

Type	Positions	Description
Chain	1 – 911	Band 3 anion transport protein
Topological domain	1 – 403	Cytoplasmic
Region	1 – 40	Disordered
Modified residue	21 – 21	Phosphotyrosine
Modified residue	46 – 46	Phosphotyrosine
Alternative sequence	1 – 65	Missing. In isoform 2.

Literature citations

Human erythrocyte protein 4.2 deficiency associated with hemolytic anemia and a homozygous 40 glutamic acid-->lysine substitution in the cytoplasmic domain of band 3 (band 3Montefiore).
Rybicki A.C.; Qiu J.J.H.; Musto S.; Rosen N.L.; Nagel R.L.; Schwartz R.S.;
Blood 81:2155-2165(1993)
Cited for: VARIANT LYS-40;

Ankyrin-1 mutations are a major cause of dominant and recessive hereditary spherocytosis.
Eber S.W.; Gonzalez J.M.; Lux M.L.; Scarpa A.L.; Tse W.T.; Dornwell M.; Herbers J.; Kugler W.; Oezcan R.; Pekrun A.; Gallagher P.G.; Schroeter W.; Forget B.G.; Lux S.E.;
Nat. Genet. 13:214-218(1996)
Cited for: VARIANTS SPH4 CYS-518 AND MET-663 DEL; VARIANT LYS-40;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P02730: Variant p.Glu40Lys