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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q92968: Variant p.Ile326Thr

Peroxisomal membrane protein PEX13
Gene: PEX13
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Variant information Variant position: help 326 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 Isoleucine (I) to Threonine (T) at position 326 (I326T, p.Ile326Thr). 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 hydrophobic (I) to medium size and polar (T) 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
Variant description: help In PBD11B; neonatal adrenoleukodystrophy. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 326 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 403 The length of the canonical sequence.
Location on the sequence: help QQPKVRGWLLASLDGQTTGL I PANYVKILGKRKGRKTVESS 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                         QQPKVRG--WLLASL-DGQTTGLIPANYVKILG-----KRKGRKTVESS

Mouse                         QQPKVRG--WLLASL-DGQTTGLIPANYVKILG-----KRR

Rat                           QQPKVRG--WLLASL-DGQTTGLIPANYVKILG-----KRR

Bovine                        QQPRVRG--WLLASL-DGQTTGLIPANYVKILG-----KRR

Caenorhabditis elegans        EQPRVRG--WLLASVADGSRIGLVPINYVRIVG-----K--

Slime mold                    HDN------WWVGEC-NGL-SGFFPVDFTEKISPNDINNNN

Baker's yeast                 KDPLGRDSDWWKVRTKNGN-IGYIPYNYIEIIK-----RRK

Fission yeast                 TDTQGNPCEWWQGRKRSGE-TGWFPSNYCSIIS-----R--
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 – 403 Peroxisomal membrane protein PEX13
Topological domain 255 – 403 Cytoplasmic
Domain 272 – 336 SH3
Beta strand 323 – 327



Literature citations
PEX13 is mutated in complementation group 13 of the peroxisome-biogenesis disorders.
Liu Y.; Bjoerkman J.; Urquhart A.; Wanders R.J.A.; Crane D.I.; Gould S.J.;
Am. J. Hum. Genet. 65:621-634(1999)
Cited for: VARIANT PBD11B THR-326; Nonsense and temperature-sensitive mutations in PEX13 are the cause of complementation group H of peroxisome biogenesis disorders.
Shimozawa N.; Suzuki Y.; Zhang Z.; Imamura A.; Toyama R.; Mukai S.; Fujiki Y.; Tsukamoto T.; Osumi T.; Orii T.; Wanders R.J.A.; Kondo N.;
Hum. Mol. Genet. 8:1077-1083(1999)
Cited for: INVOLVEMENT IN PBD11A; VARIANT PBD11B THR-326;
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.