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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P15531: Variant p.Ser120Gly

Nucleoside diphosphate kinase A
Gene: NME1
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Variant information Variant position: help 120 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 Serine (S) to Glycine (G) at position 120 (S120G, p.Ser120Gly). 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 small size and polar (S) to glycine (G) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 0 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: help In a neuroblastoma sample; increased motility of carcinoma cells. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 120 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 152 The length of the canonical sequence.
Location on the sequence: help KPGTIRGDFCIQVGRNIIHG S DSVESAEKEIGLWFHPEELV 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.
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 1 – 152 Nucleoside diphosphate kinase A
Active site 118 – 118 Pros-phosphohistidine intermediate
Binding site 105 – 105
Binding site 115 – 115
Modified residue 120 – 120 Phosphoserine
Modified residue 122 – 122 Phosphoserine
Modified residue 125 – 125 Phosphoserine
Cross 100 – 100 Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)
Mutagenesis 118 – 118 H -> F. Loss of serine/threonine kinase activity. Some loss of motility of carcinoma cells.
Mutagenesis 118 – 118 H -> G. Loss of activity.
Mutagenesis 120 – 120 S -> A. Limited increase in motility of carcinoma cells.



Literature citations
Nm23-H1 mutation in neuroblastoma.
Chang C.L.; Zhu X.-X.; Thoraval D.H.; Ungar D.; Rawwas J.; Hora N.; Strahler J.R.; Hanash S.M.;
Nature 370:335-336(1994)
Cited for: VARIANT GLY-120;
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.