UniProtKB/SwissProt variant VAR

Variant information

Variant position:

338

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

Type of variant:

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:

From Glycine (G) to Cysteine (C) at position 338 (G338C, p.Gly338Cys).

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 glycine (G) to medium size and polar (C)

The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:

-3

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:

In OI4.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs66664580 [ dbSNP | Ensembl ]

Sequence information

Variant position:

338

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

Protein sequence length:

1464

The length of the canonical sequence.

Location on the sequence:

PAGARGNDGATGAAGPPGPT G PAGPPGFPGAVGAKGEAGPQ

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                         PAGARGNDGATGAAGPPGPTGPAGPPGFPGAVGAKGEAGPQ

                              PAGARGNDGATGAAGPPGPTGPAGPPGFPGAVGAKGEAGPQ

Mouse                         TAGARGNDGAVGAAGPPGPTGPTGPPGFPGAVGAKGEAGPQ

Rat                           SAGARGNDGAVGAAGPPGPTGPTGPPGFPGAAGAKGEAGPQ

Bovine                        PAGARGNDGATGAAGPPGPTGPAGPPGFPGAVGAKGEGGPQ

Chicken                       PAGARGNDGAPGAAGPPGPTGPAGPPGFPGAAGAKGETGPQ

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
Chain	162 – 1218	Collagen alpha-1(I) chain
Region	179 – 1192	Triple-helical region
Modified residue	334 – 334	4-hydroxyproline
Modified residue	343 – 343	4-hydroxyproline
Modified residue	346 – 346	4-hydroxyproline

Literature citations

Mutation analysis of COL1A1 and COL1A2 in patients diagnosed with osteogenesis imperfecta type I-IV.
Pollitt R.; McMahon R.; Nunn J.; Bamford R.; Afifi A.; Bishop N.; Dalton A.;
Hum. Mutat. 27:716-716(2006)
Cited for: VARIANTS OI2 ARG-22; ARG-581; VAL-734 AND ASN-1413; VARIANTS OI4 ARG-197 AND CYS-338; VARIANTS OI1 VAL-320; ARG-555; SER-647 AND GLU-1219; VARIANTS ALA-205; LYS-288; SER-906 AND HIS-1356;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P02452: Variant p.Gly338Cys