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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P48029: Variant p.Glu624Lys

Sodium- and chloride-dependent creatine transporter 1
Gene: SLC6A8
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Variant information Variant position: help 624 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LB/B 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 Glutamate (E) to Lysine (K) at position 624 (E624K, p.Glu624Lys). 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 (E) to large size and basic (K) 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 No effect on creatine transporter activity. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 624 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 635 The length of the canonical sequence.
Location on the sequence: help LEYRAQDADVRGLTTLTPVS E SSKVVVVESVM 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                         LEYRAQDADVRGLTTLTPVSESSKVVVVESVM

Mouse                         LEYRAQDADVRGLTTLTPVSESSKVVVVESVM

Rat                           LEYRAQDADVRGLTTLTPVSESSKVVVVESVM

Bovine                        LEYRAQDSDVRGLTTLTPVSESSKVVVVESVM

Rabbit                        LEYRAQDADVRGLTTLTPVSESSKVVVVESVM

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 – 635 Sodium- and chloride-dependent creatine transporter 1
Topological domain 582 – 635 Cytoplasmic
Modified residue 617 – 617 Phosphothreonine
Modified residue 620 – 620 Phosphothreonine
Modified residue 623 – 623 Phosphoserine



Literature citations
Estimated carrier frequency of creatine transporter deficiency in females in the general population using functional characterization of novel missense variants in the SLC6A8 gene.
DesRoches C.L.; Patel J.; Wang P.; Minassian B.; Salomons G.S.; Marshall C.R.; Mercimek-Mahmutoglu S.;
Gene 565:187-191(2015)
Cited for: VARIANT CCDS1 LEU-552; CHARACTERIZATION OF VARIANT CCDS1 LEU-552; VARIANTS HIS-186; MET-270; GLN-294; LEU-314; THR-318; SER-550; LEU-564; THR-611 AND LYS-624; CHARACTERIZATION OF VARIANTS HIS-186; MET-270; GLN-294; LEU-314; THR-318; LEU-564; THR-611 AND LYS-624; FUNCTION; TRANSPORTER ACTIVITY;
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.