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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P02144: Variant p.Glu55Lys

Myoglobin
Gene: MB
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Variant information Variant position: help 55 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LB/B 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: help From Glutamate (E) to Lysine (K) at position 55 (E55K, p.Glu55Lys). 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: help 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: help 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

Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 55 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 154 The length of the canonical sequence.
Location on the sequence: help KGHPETLEKFDKFKHLKSED E MKASEDLKKHGATVLTALGG 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: help The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human                         KGHPETLEKFDKFKHLKSEDEMKASEDLKKHGATVLTALGG

                              KNHPETLDKFDKFKHLKTEDEMKGSEDLKKHGNTVLTALGG

Chimpanzee                    KGHPETLEKFDKFKHLKSEDEMKASEDLKKHGATVLTALGG

Mouse                         KTHPETLDKFDKFKNLKSEEDMKGSEDLKKHGCTVLTALGT

Rat                           KAHPETLEKFDKFKNLKSEEEMKSSEDLKKHGCTVLTALGT

Pig                           KGHPETLEKFDKFKHLKSEDEMKASEDLKKHGNTVLTALGG

Bovine                        TGHPETLEKFDKFKHLKTEAEMKASEDLKKHGNTVLTALGG

Rabbit                        HTHPETLEKFDKFKHLKSEDEMKASEDLKKHGNTVLTALGA

Goat                          TGHPETLEKFDKFKHLKTGAEMKASEDLKKHGNTVLTALGG

Sheep                         TGHPETLEKFDKFKHLKTEAEMKASEDLKKHGNTVLTALGG

Horse                         TGHPETLEKFDKFKHLKTEAEMKASEDLKKHGTVVLTALGG

Chicken                       HDHPETLDRFDKFKGLKTPDQMKGSEDLKKHGATVLTQLGK

Zebrafish                     KEYPDTLKLFPKFSGI-SQGDLAGSPAVAAHGATVLKKLGE

Sequence annotation in neighborhood: help 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 2 – 154 Myoglobin
Binding site 65 – 65
Binding site 65 – 65
Modified residue 68 – 68 Phosphothreonine
Helix 53 – 57



Literature citations
Abnormal human myoglobin: 53 (D4) glutamic acid-->lysine.
Boulton F.E.; Huntsman R.G.; Lorkin P.A.; Lehmann H.;
Nature 223:832-833(1969)
Cited for: VARIANT LYS-55;
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.