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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P05062: Variant p.Arg304Trp

Fructose-bisphosphate aldolase B
Gene: ALDOB
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Variant information Variant position: help 304 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 Arginine (R) to Tryptophan (W) at position 304 (R304W, p.Arg304Trp). 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 basic (R) to large size and aromatic (W) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -3 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 HFI; Turkey; 4800-fold decrease in catalytic efficiency for F1,6BP and inactive with F1P. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 304 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 364 The length of the canonical sequence.
Location on the sequence: help LNAINLCPLPKPWKLSFSYG R ALQASALAAWGGKAANKEAT 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                         LNAINLCPLPKPWKLSFSYGRALQASALAAWGGKAANKEAT

Mouse                         LNAINRCPLPRPWKLSFSYGRALQASALAAWGGKAANKKAT

Rat                           LNAIYRCPLPRPWKLSFSYGRALQASALAAWGGKAANKKAT

Bovine                        LNAINLCPLPKPWKLSFSYGRALQASALAAWGGKAENKKTT

Rabbit                        LNAINLCPLPKPWKLSFSYGRALQASALAAWGGKAENKKAT

Sheep                         LNAINLCPLPKPWKLSFSYGRALQASALAAWGGKAENKKAT

Chicken                       LNAMNQSPLPKPWKLTFSYGRALQASALAAWLGKSENKKAA

Zebrafish                     LNAMNQLSLHRPWKLSFSYGRALQASALSAWKGQAANKKAS
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 – 364 Fructose-bisphosphate aldolase B
Binding site 304 – 304
Modified residue 299 – 299 Phosphoserine
Modified residue 301 – 301 Phosphoserine
Modified residue 309 – 309 Phosphoserine
Modified residue 317 – 317 N6-succinyllysine
Mutagenesis 304 – 304 R -> A. Decreases enzymatic activity. Impairs the interaction with G6PD.
Helix 304 – 306



Literature citations
Screening for hereditary fructose intolerance mutations by reverse dot-blot.
Lau J.; Tolan D.R.;
Mol. Cell. Probes 13:35-40(1999)
Cited for: VARIANTS HFI PRO-150; ASP-175; PRO-257; TRP-304; LYS-335 AND VAL-338; Functional and molecular modelling studies of two hereditary fructose intolerance-causing mutations at arginine 303 in human liver aldolase.
Santamaria R.; Esposito G.; Vitagliano L.; Race V.; Paglionico I.; Zancan L.; Zagari A.; Salvatore F.;
Biochem. J. 350:823-828(2000)
Cited for: VARIANTS HFI GLN-304 AND TRP-304; CHARACTERIZATION OF VARIANTS HFI GLN-304 AND TRP-304; FUNCTION; CATALYTIC ACTIVITY; BIOPHYSICOCHEMICAL PROPERTIES; 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.