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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q6ZNJ1: Variant p.Leu388Pro

Neurobeachin-like protein 2
Gene: NBEAL2
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Variant information Variant position: help 388 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 Leucine (L) to Proline (P) at position 388 (L388P, p.Leu388Pro). 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 Similar physico-chemical property. Both residues are medium size and hydrophobic. 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 GPS. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 388 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 2754 The length of the canonical sequence.
Location on the sequence: help DVQKVLDQDTDAIAVHVVRV L TCIMSDSPSAKEVFKERIGY 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                         DVQKVLDQDTDAIAVHVVRVLTCIMSDSPSAKEVFKERIGY

Mouse                         DVQKVLDQDTDAIAVHVVRVLTCIMSGSPSAKEVFKERIGY

Zebrafish                     EVEQVWEKGSDCITVHAIRVLTAIMSNSPSAKEVFKERIGY
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 – 2754 Neurobeachin-like protein 2



Literature citations
NBEAL2 is mutated in gray platelet syndrome and is required for biogenesis of platelet alpha-granules.
Gunay-Aygun M.; Falik-Zaccai T.C.; Vilboux T.; Zivony-Elboum Y.; Gumruk F.; Cetin M.; Khayat M.; Boerkoel C.F.; Kfir N.; Huang Y.; Maynard D.; Dorward H.; Berger K.; Kleta R.; Anikster Y.; Arat M.; Freiberg A.S.; Kehrel B.E.; Jurk K.; Cruz P.; Mullikin J.C.; White J.G.; Huizing M.; Gahl W.A.;
Nat. Genet. 43:732-734(2011)
Cited for: PROTEIN SEQUENCE OF 2374-2394; FUNCTION; SUBCELLULAR LOCATION; VARIANTS GPS PRO-388; ARG-677; LYS-1833; CYS-1839 AND TYR-2263; Exome sequencing identifies NBEAL2 as the causative gene for gray platelet syndrome.
Albers C.A.; Cvejic A.; Favier R.; Bouwmans E.E.; Alessi M.C.; Bertone P.; Jordan G.; Kettleborough R.N.; Kiddle G.; Kostadima M.; Read R.J.; Sipos B.; Sivapalaratnam S.; Smethurst P.A.; Stephens J.; Voss K.; Nurden A.; Rendon A.; Nurden P.; Ouwehand W.H.;
Nat. Genet. 43:735-737(2011)
Cited for: FUNCTION; TISSUE SPECIFICITY; VARIANTS GPS PRO-388; VAL-643; LEU-2100 AND LEU-2269; VARIANTS VAL-86; PHE-682 AND GLU-2553;
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.