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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q86TP1: Variant p.Arg297Trp

Exopolyphosphatase PRUNE1
Gene: PRUNE1
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Variant information Variant position: help 297 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 297 (R297W, p.Arg297Trp). 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 NMIHBA; loss of function in regulation of cell proliferation and migration; loss of function in neurogenesis; impaired regulation of microtubule polymerization; increased phosphatase activity; decreased interaction with tubulin beta. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 297 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 453 The length of the canonical sequence.
Location on the sequence: help HSYDVLVAMTIFFNTHNEPV R QLAIFCPHVALQTTICEVLE 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                         HSYDVLVAMTIFFNTHNEPVRQLAIFCPHVALQTTICEVLE

Mouse                         HSYDALVAMTIFFNTQNEPVRQLAIFCPHEALRMTICGILE

Rat                           HSYDALVAMAIFFNTHNEPVRQLAIFCPHEALRMTICGVLE

Bovine                        HSYDALVAMTIFFNTYNEPVRQLAVFCPHAALRMTICGILE
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 – 453 Exopolyphosphatase PRUNE1
Alternative sequence 259 – 311 Missing. In isoform 4, isoform 5 and isoform 6.



Literature citations
PRUNE is crucial for normal brain development and mutated in microcephaly with neurodevelopmental impairment.
Zollo M.; Ahmed M.; Ferrucci V.; Salpietro V.; Asadzadeh F.; Carotenuto M.; Maroofian R.; Al-Amri A.; Singh R.; Scognamiglio I.; Mojarrad M.; Musella L.; Duilio A.; Di Somma A.; Karaca E.; Rajab A.; Al-Khayat A.; Mohan Mohapatra T.; Eslahi A.; Ashrafzadeh F.; Rawlins L.E.; Prasad R.; Gupta R.; Kumari P.; Srivastava M.; Cozzolino F.; Kumar Rai S.; Monti M.; Harlalka G.V.; Simpson M.A.; Rich P.; Al-Salmi F.; Patton M.A.; Chioza B.A.; Efthymiou S.; Granata F.; Di Rosa G.; Wiethoff S.; Borgione E.; Scuderi C.; Mankad K.; Hanna M.G.; Pucci P.; Houlden H.; Lupski J.R.; Crosby A.H.; Baple E.L.;
Brain 140:940-952(2017)
Cited for: FUNCTION; INTERACTION WITH TUBULIN; INVOLVEMENT IN NMIHBA; VARIANTS NMIHBA ASN-30; THR-54; ASN-106 AND TRP-297; CHARACTERIZATION OF VARIANTS NMIHBA ASN-30 AND TRP-297;
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.