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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q9NPF4: Variant p.Lys198Arg

tRNA N6-adenosine threonylcarbamoyltransferase
Gene: OSGEP
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Variant information Variant position: help 198 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 Lysine (K) to Arginine (R) at position 198 (K198R, p.Lys198Arg). 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 large size and basic. The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 2 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 GAMOS3; reduced formation of a threonylcarbamoyl group on adenosine at position 37 (t(6)A37) in tRNAs. Any additional useful information about the variant.


Sequence information Variant position: help 198 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 335 The length of the canonical sequence.
Location on the sequence: help YNIEQMAKRGKKLVELPYTV K GMDVSFSGILSFIEDVAHRM 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                         YNIEQMAKRGKKLVELPYTVKGMDVSFSGILSFIEDVA-------HRM

Mouse                         YNIEQMAKRGKKLVELPYTVKGMDVSFSGILSFIEDAA---

Rat                           YNIEQMAKRGKKLVELPYTVKGMDVSFSGILSFIEDAA---

Bovine                        YNIEQMAKRGKKLVELPYTVKGMDVSFSGILSFIEDVA---

Xenopus laevis                YNIEQMAKKGKKFVELPYTVKGMDVSFSGILSYIEDMS---

Zebrafish                     YNIEQMAKKGNKYIELPYTVKGMDVSFSGILSYIEDAA---

Drosophila                    YNIEQLAKSSNRYIKLPYVVKGMDVSFSGILSYIEDLAEPG

Slime mold                    YNIEQLAKKGKNLIELPYITKGMDVSFSGILSSIEGMV---

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 – 335 tRNA N6-adenosine threonylcarbamoyltransferase
Binding site 181 – 181



Literature citations
Mutations in KEOPS-complex genes cause nephrotic syndrome with primary microcephaly.
Braun D.A.; Rao J.; Mollet G.; Schapiro D.; Daugeron M.C.; Tan W.; Gribouval O.; Boyer O.; Revy P.; Jobst-Schwan T.; Schmidt J.M.; Lawson J.A.; Schanze D.; Ashraf S.; Ullmann J.F.P.; Hoogstraten C.A.; Boddaert N.; Collinet B.; Martin G.; Liger D.; Lovric S.; Furlano M.; Guerrera I.C.; Sanchez-Ferras O.; Hu J.F.; Boschat A.C.; Sanquer S.; Menten B.; Vergult S.; De Rocker N.; Airik M.; Hermle T.; Shril S.; Widmeier E.; Gee H.Y.; Choi W.I.; Sadowski C.E.; Pabst W.L.; Warejko J.K.; Daga A.; Basta T.; Matejas V.; Scharmann K.; Kienast S.D.; Behnam B.; Beeson B.; Begtrup A.; Bruce M.; Ch'ng G.S.; Lin S.P.; Chang J.H.; Chen C.H.; Cho M.T.; Gaffney P.M.; Gipson P.E.; Hsu C.H.; Kari J.A.; Ke Y.Y.; Kiraly-Borri C.; Lai W.M.; Lemyre E.; Littlejohn R.O.; Masri A.; Moghtaderi M.; Nakamura K.; Ozaltin F.; Praet M.; Prasad C.; Prytula A.; Roeder E.R.; Rump P.; Schnur R.E.; Shiihara T.; Sinha M.D.; Soliman N.A.; Soulami K.; Sweetser D.A.; Tsai W.H.; Tsai J.D.; Topaloglu R.; Vester U.; Viskochil D.H.; Vatanavicharn N.; Waxler J.L.; Wierenga K.J.; Wolf M.T.F.; Wong S.N.; Leidel S.A.; Truglio G.; Dedon P.C.; Poduri A.; Mane S.; Lifton R.P.; Bouchard M.; Kannu P.; Chitayat D.; Magen D.; Callewaert B.; van Tilbeurgh H.; Zenker M.; Antignac C.; Hildebrandt F.;
Nat. Genet. 49:1529-1538(2017)
Cited for: FUNCTION; CATALYTIC ACTIVITY; SUBCELLULAR LOCATION; IDENTIFICATION IN THE EKC/KEOPS COMPLEX; INVOLVEMENT IN GAMOS3; VARIANTS GAMOS3 PHE-14; GLU-78; MET-107; ARG-110; THR-111; THR-139; ALA-177; ARG-198; GLN-247; CYS-280; HIS-280; LEU-280; GLN-325 AND TRP-325; CHARACTERIZATION OF VARIANTS GAMOS3 PHE-14; ARG-110; THR-111; ARG-198; GLN-247; LEU-280 AND GLN-325;
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.