Expasy logo

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q9Y223: Variant p.Phe528Cys

Bifunctional UDP-N-acetylglucosamine 2-epimerase/N-acetylmannosamine kinase
Gene: GNE
Feedback?
Variant information Variant position: help 528 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] 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 Phenylalanine (F) to Cysteine (C) at position 528 (F528C, p.Phe528Cys). 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 large size and aromatic (F) to medium size and polar (C) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -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
Variant description: help In NM; decreased N-acylmannosamine kinase activity. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 528 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 722 The length of the canonical sequence.
Location on the sequence: help LHLPVWVDNDGNCAALAERK F GQGKGLENFVTLITGTGIGG 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                         LHLPVWVDNDGNCAALAERKFGQGKGLENFVTLITGTGIGG

Mouse                         LHLPVWVDNDGNCAAMAERKFGQGKGQENFVTLITGTGIGG

Rat                           LHLPVWVDNDGNCAAMAERKFGQGKGQENFVTLITGTGIGG
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 – 722 Bifunctional UDP-N-acetylglucosamine 2-epimerase/N-acetylmannosamine kinase
Region 406 – 722 N-acetylmannosamine kinase
Active site 517 – 517
Binding site 516 – 516
Binding site 516 – 516
Binding site 517 – 517
Binding site 517 – 517
Binding site 545 – 545
Alternative sequence 471 – 544 Missing. In isoform 4.
Mutagenesis 517 – 517 D -> AN. Loss of N-acylmannosamine kinase activity. Decreased affinity for N-acyl-D-mannosamine. No effect on structure.



Literature citations
Crystal structures of N-acetylmannosamine kinase provide insights into enzyme activity and inhibition.
Martinez J.; Nguyen L.D.; Hinderlich S.; Zimmer R.; Tauberger E.; Reutter W.; Saenger W.; Fan H.; Moniot S.;
J. Biol. Chem. 287:13656-13665(2012)
Cited for: X-RAY CRYSTALLOGRAPHY (1.64 ANGSTROMS) OF 406-720 IN COMPLEX WITH N-ACYL-D-MANNOSAMINE; N-ACYL-D-MANNOSAMINE 6-PHOSPHATE; ADP; MAGNESIUM AND ZINC; ZINC-BINDING SITES; ACTIVE SITE; SUBUNIT; MUTAGENESIS OF ASP-517; CHARACTERIZATION OF VARIANTS SER-519; CYS-528; THR-587; VAL-631; THR-631 AND THR-712; Mutations spectrum of GNE in hereditary inclusion body myopathy sparing the quadriceps.
Eisenberg I.; Grabov-Nardini G.; Hochner H.; Korner M.; Sadeh M.; Bertorini T.; Bushby K.; Castellan C.; Felice K.; Mendell J.; Merlini L.; Shilling C.; Wirguin I.; Argov Z.; Mitrani-Rosenbaum S.;
Hum. Mutat. 21:99-99(2003)
Cited for: VARIANTS NM LEU-36; PHE-200; ASN-225; GLN-246; VAL-303; TYR-378; VAL-460; CYS-528; THR-557; LEU-572; GLU-576; THR-587; THR-631; VAL-631; MET-696 AND THR-712; Influence of UDP-GlcNAc 2-epimerase/ManNAc kinase mutant proteins on hereditary inclusion body myopathy.
Penner J.; Mantey L.R.; Elgavish S.; Ghaderi D.; Cirak S.; Berger M.; Krause S.; Lucka L.; Voit T.; Mitrani-Rosenbaum S.; Hinderlich S.;
Biochemistry 45:2968-2977(2006)
Cited for: CHARACTERIZATION OF VARIANTS NM TYR-378; SER-519; CYS-528; GLU-576 AND THR-587; FUNCTION; CATALYTIC ACTIVITY; PATHWAY;
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.