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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P02452: Variant p.Asp1219Asn

Collagen alpha-1(I) chain
Gene: COL1A1
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Variant information Variant position: help 1219 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 Aspartate (D) to Asparagine (N) at position 1219 (D1219N, p.Asp1219Asn). 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 Found in a patient with mild osteogenesis imperfecta and increased bone mineral density; results in defective type I procollagen processing; incorporation of the immature procollagen into the matrix leads to increased bone matrix mineralization and altered collagen fibril structure. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 1219 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 1464 The length of the canonical sequence.
Location on the sequence: help SFLPQPPQEKAHDGGRYYRA D DANVVRDRDLEVDTTLKSLS 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                         SFLPQPPQEKAHDGGRYYRADDANVVRDRDLEVDTTLKSLS

                              SFLPQPPQEKAHDGGRYYRADDANVVRDRDLEVDTTLKSLS

Mouse                         SFLPQPPQEKSQDGGRYYRADDANVVRDRDLEVDTTLKSLS

Rat                           SFLPQPPQEKSQDGGRYYRADDANVVRDRDLEVDTTLKSLS

Bovine                        SFLPQPPQEKAHDGGRYYRADDANVVRDRDLEVDTTLKSLS

Chicken                       SFLPQPPQEKAHDGGRYYRADDANVMRDRDLEVDTTLKSLS

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
Propeptide 1219 – 1464 C-terminal propeptide
Site 1218 – 1219 Cleavage; by procollagen C-endopeptidase
Modified residue 1208 – 1208 Allysine



Literature citations
COL1 C-propeptide cleavage site mutations cause high bone mass osteogenesis imperfecta.
Lindahl K.; Barnes A.M.; Fratzl-Zelman N.; Whyte M.P.; Hefferan T.E.; Makareeva E.; Brusel M.; Yaszemski M.J.; Rubin C.J.; Kindmark A.; Roschger P.; Klaushofer K.; McAlister W.H.; Mumm S.; Leikin S.; Kessler E.; Boskey A.L.; Ljunggren O.; Marini J.C.;
Hum. Mutat. 32:598-609(2011)
Cited for: VARIANT ASN-1219; CHARACTERIZATION OF VARIANT ASN-1219;
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.