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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q96IP4: Variant p.His127Arg

Terminal nucleotidyltransferase 5A
Gene: TENT5A
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Variant information Variant position: help 127 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help US 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 Histidine (H) to Arginine (R) at position 127 (H127R, p.His127Arg). 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 polar (H) to large size and basic (R) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 0 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 OI18; uncertain significance. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 127 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 442 The length of the canonical sequence.
Location on the sequence: help RLAEKRIGVRDVRLNGSAAS H VLHQDSGLGYKDLDLIFCAD 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                         RLAEKRIGVRDVRLNGSAASHVLHQDSGLGYKDLDLIFCAD

Mouse                         RLEEKGIGVRDVRLNGSAASHVLHQDSGLGYKDLDLIFCAD

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 – 442 Terminal nucleotidyltransferase 5A
Mutagenesis 139 – 139 D -> N. Does not elongate poly(A) tail; when associated with N-141.
Mutagenesis 141 – 141 D -> N. Does not elongate poly(A) tail; when associated with N-139.
Helix 123 – 129



Literature citations
FAM46A mutations are responsible for autosomal recessive osteogenesis imperfecta.
Doyard M.; Bacrot S.; Huber C.; Di Rocco M.; Goldenberg A.; Aglan M.S.; Brunelle P.; Temtamy S.; Michot C.; Otaify G.A.; Haudry C.; Castanet M.; Leroux J.; Bonnefont J.P.; Munnich A.; Baujat G.; Lapunzina P.; Monnot S.; Ruiz-Perez V.L.; Cormier-Daire V.;
J. Med. Genet. 55:278-284(2018)
Cited for: INVOLVEMENT IN OI18; VARIANTS OI18 ARG-127 AND GLY-231; TISSUE SPECIFICITY;
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.