Variant position: 283 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 694 The length of the canonical sequence.
Location on the sequence:
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: The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human YLKVGTNYPEVRFNRLLKFS RLFEFFDRTETRTNYPNMFRI
Mouse YLKLGVNYPELRFNRLLKFS RLFEFFDRTETRTNYPNVFRI
Bovine YFKLGMNYPELRFNRLLKLA RLFEFFDRTETRTNYPNMFRI
Sequence annotation in neighborhood: 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.
Type Positions Description
1 – 694 Cyclic nucleotide-gated cation channel alpha-3
274 – 302 Extracellular
Total colourblindness is caused by mutations in the gene encoding the alpha-subunit of the cone photoreceptor cGMP-gated cation channel.
Kohl S.; Marx T.; Giddings I.; Jaegle H.; Jacobson S.G.; Apfelstedt-Sylla E.; Zrenner E.; Sharpe L.T.; Wissinger B.;
Nat. Genet. 19:257-259(1998)
Cited for: VARIANTS ACHM2 LEU-163; GLN-283; TRP-283; ARG-291; TRP-410; MET-529; LEU-547 AND ARG-557; VARIANT MET-153;
CNGA3 mutations in hereditary cone photoreceptor disorders.
Wissinger B.; Gamer D.; Jaegle H.; Giorda R.; Marx T.; Mayer S.; Tippmann S.; Broghammer M.; Jurklies B.; Rosenberg T.; Jacobson S.G.; Sener E.C.; Tatlipinar S.; Hoyng C.B.; Castellan C.; Bitoun P.; Andreasson S.; Rudolph G.; Kellner U.; Lorenz B.; Wolff G.; Verellen-Dumoulin C.; Schwartz M.; Cremers F.P.M.; Apfelstedt-Sylla E.; Zrenner E.; Salati R.; Sharpe L.T.; Kohl S.;
Am. J. Hum. Genet. 69:722-737(2001)
Cited for: VARIANTS ACHM2 VAL-162; LEU-163; CYS-181; TYR-182; PHE-186; TYR-191; LYS-194; TRP-223; ARG-224; ASN-260; ASP-267; CYS-277; HIS-277; TRP-283; GLN-283; ARG-291; ILE-312 DEL; PRO-341; SER-369; SER-372; SER-380; THR-406; TRP-410; CYS-427; TRP-436; SER-471; VAL-485; SER-510; GLU-513; GLU-516; THR-522; ASP-525; MET-529; LEU-547; ARG-557; HIS-563; MET-565; HIS-569; CYS-573 AND LYS-593;
Mutations in CNGA3 impair trafficking or function of cone cyclic nucleotide-gated channels, resulting in achromatopsia.
Reuter P.; Koeppen K.; Ladewig T.; Kohl S.; Baumann B.; Wissinger B.;
Hum. Mutat. 29:1228-1236(2008)
Cited for: VARIANTS ACHM2 LYS-228; CYS-277; GLN-283; TRP-439; THR-469; LEU-547 AND ARG-557; CHARACTERIZATION OF VARIANTS ACHM2 LYS-228; GLN-283; ARG-291; TRP-439; THR-469; LEU-547; ARG-557 AND LYS-590;
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.