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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O60931: Variant p.Asp205Asn

Cystinosin
Gene: CTNS
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Variant information Variant position: help 205 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 Aspartate (D) to Asparagine (N) at position 205 (D205N, p.Asp205Asn). 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 acidic (D) to medium size and polar (N) 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 CTNS; abolished cystine transport. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 205 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 367 The length of the canonical sequence.
Location on the sequence: help YIKEQFLLKYPNGVNPVNSN D VFFSLHAVVLTLIIIVQCCL 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                         YIKEQFLLKYPNGVN-PVNSNDVFFSLHAVVLTLIIIVQCCL

Mouse                         YIQEEFLLKYPNGVN-PVDSNDAFFSLHAVALTLIVILQCC

Bovine                        SIKEQFLLKYPNGVN-PVDSNDVFFSLHAVALTLVVIVQCL

Caenorhabditis elegans        HVKNEYNIVNPRSPP-PVLLNDVVFAVHAFLACFITILQCL

Drosophila                    DLQNEYEVRYPLGVN-PVMLNDVVFSLHAMFATCITILQCF

Slime mold                    LVKNEYYDKY--GPPIPVQQSDIAFAIHGFVLTAITIIQCF
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 23 – 367 Cystinosin
Transmembrane 203 – 225 Helical
Binding site 205 – 205
Mutagenesis 205 – 205 D -> AN. Nearly abolished cystine transport. Impaired pH-dependent conformational shift.
Mutagenesis 205 – 205 D -> N. Abolished steady-state transport current. Decreased midpoint potential.
Mutagenesis 211 – 211 H -> F. Accelerated the time course.
Helix 203 – 225



Literature citations
CTNS mutations in an American-based population of cystinosis patients.
Shotelersuk V.; Larson D.; Anikster Y.; McDowell G.; Lemons R.; Bernardini I.; Guo J.; Thoene J.; Gahl W.A.;
Am. J. Hum. Genet. 63:1352-1362(1998)
Cited for: VARIANTS CTNS ASP-169; ARG-182; ASN-205; ASP-205 DEL; ASN-298; GLY-305; ARG-308 AND ARG-339; VARIANT CTNSJAN 67-ILE--PRO-73 DEL; VARIANT ARG-292; Molecular pathogenesis of cystinosis: effect of CTNS mutations on the transport activity and subcellular localization of cystinosin.
Kalatzis V.; Nevo N.; Cherqui S.; Gasnier B.; Antignac C.;
Hum. Mol. Genet. 13:1361-1371(2004)
Cited for: FUNCTION; SUBCELLULAR LOCATION; CHARACTERIZATION OF VARIANTS CTNS VAL-110; PHE-133; PHE-139; PHE-141; PRO-158; ASP-169; SER-177; ARG-182; ASN-205; ASP-205 DEL; ARG-222; SER-270 DEL; LYS-288; ASN-298; TYR-305; ARG-308; PRO-338; ARG-339; 343-ILE--ASP-346 DEL; ASP-346--349-PHE DEL AND ASP-VAL-GLU-PHE-349 INS; CHARACTERIZATION OF VARIANT CTNSJAN 67-ILE--PRO-73 DEL; PRO-CYS-SER-154 INS; LEU-200; ARG-280; LYS-323 AND ASN-346; CHARACTERIZATION OF VARIANT CTNSANN ARG-197; CHARACTERIZATION OF VARIANT ILE-42 AND ILE-260;
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.