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UniProtKB/Swiss-Prot O00533: Variant p.Thr287Ala

Neural cell adhesion molecule L1-like protein
Gene: CHL1
Variant information

Variant position:  287
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  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:  From Threonine (T) to Alanine (A) at position 287 (T287A, p.Thr287Ala).
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:  Change from medium size and polar (T) to small size and hydrophobic (A)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  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

Other resources:  
Links to websites of interest for the variant.



Sequence information

Variant position:  287
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  1208
The length of the canonical sequence.

Location on the sequence:   LPTPQVDWNKIGGDLPKGRE  T KENYGKTLKIENVSYQDKGN
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                         LPTPQVDWNKIGGDLPKGRETKENYGKTLKIENVSYQDKGN

Mouse                         LPTPHIQWSKPGSELPEGRATIEVHEKTLKIENISYQDRGN

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.

TypePositionsDescription
Chain 25 – 1208 Neural cell adhesion molecule L1-like protein
Topological domain 25 – 1082 Extracellular
Domain 235 – 328 Ig-like C2-type 3
Glycosylation 299 – 299 N-linked (GlcNAc...) asparagine
Disulfide bond 262 – 310


Literature citations

In silico-initiated cloning and molecular characterization of a novel human member of the L1 gene family of neural cell adhesion molecules.
Wei M.-H.; Karavanova I.; Ivanov S.V.; Popescu N.C.; Keck C.L.; Pack S.; Eisen J.A.; Lerman M.I.;
Hum. Genet. 103:355-364(1998)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2); TISSUE SPECIFICITY; VARIANTS ALA-287 AND VAL-1034;

Submission
Totoki Y.; Toyoda A.; Takeda T.; Sakaki Y.; Tanaka A.; Yokoyama S.; Ohara O.; Nagase T.; Kikuno R.F.;
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1); VARIANTS ALA-287 AND VAL-1034;

The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).
The MGC Project Team;
Genome Res. 14:2121-2127(2004)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1); VARIANTS ALA-287 AND VAL-1034;

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.