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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q53TN4: Variant p.Ser266Asn

Plasma membrane ascorbate-dependent reductase CYBRD1
Gene: CYBRD1
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Variant information Variant position: help 266 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 Serine (S) to Asparagine (N) at position 266 (S266N, p.Ser266Asn). 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 small size and polar (S) 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

Polymorphism: help Genetic variations in CYBRD1 may act as modifier of iron overload expression and account for the variance observed in serum ferritin levels in patients with hereditary hemochromatosis. Additional information on the polymorphism described.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 266 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 286 The length of the canonical sequence.
Location on the sequence: help RGSMPAYSGNNMDKSDSELN S EVAARKRNLALDEAGQRSTM 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                         RGSMPAYSGNNMDK---SDSELNSEVAARKRNLALDEAGQRSTM

Mouse                         EGAIAISSAHSMDAADPADAESSSEGAARKRTLGLADSGQR

Rat                           EGAIAISSAHNMDA---ADAELSSEGAARKRTLGLVDTGQR

Xenopus laevis                EGS-TITDCSNTEK---SDVELNSE-AARKRILKLDEAGQR

Xenopus tropicalis            EGS-TITDCSNTEK---SDVELNSE-AARKRILKLDDAGQR

Zebrafish                     VG---------------TDMTTTS-----------------

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 – 286 Plasma membrane ascorbate-dependent reductase CYBRD1
Topological domain 223 – 286 Cytoplasmic
Region 229 – 268 Disordered
Modified residue 285 – 285 Phosphothreonine
Alternative sequence 66 – 286 IIVYRLPWTWKCSKLLMKSIHAGLNAVAAILAIISVVAVFENHNVNNIANMYSLHSWVGLIAVICYLLQLLSGFSVFLLPWAPLSLRAFLMPIHVYSGIVIFGTVIATALMGLTEKLIFSLRDPAYSTFPPEGVFVNTLGLLILVFGALIFWIVTRPQWKRPKEPNSTILHPNGGTEQGARGSMPAYSGNNMDKSDSELNSEVAARKRNLALDEAGQRSTM -> SFRFFSLSASMGSAFSPSISHAHTCLFWNCHLWNSDCNSTYGIDRETDFFPERSCIQYIPARRCFRKYAWPSDPGVRGPHFLDSHQTAMETS. In isoform 2.



Literature citations
Towards a catalog of human genes and proteins: sequencing and analysis of 500 novel complete protein coding human cDNAs.
Wiemann S.; Weil B.; Wellenreuther R.; Gassenhuber J.; Glassl S.; Ansorge W.; Boecher M.; Bloecker H.; Bauersachs S.; Blum H.; Lauber J.; Duesterhoeft A.; Beyer A.; Koehrer K.; Strack N.; Mewes H.-W.; Ottenwaelder B.; Obermaier B.; Tampe J.; Heubner D.; Wambutt R.; Korn B.; Klein M.; Poustka A.;
Genome Res. 11:422-435(2001)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1); VARIANT ASN-266; Submission
NIEHS SNPs program;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANT ASN-266; Submission
Mural R.J.; Istrail S.; Sutton G.G.; Florea L.; Halpern A.L.; Mobarry C.M.; Lippert R.; Walenz B.; Shatkay H.; Dew I.; Miller J.R.; Flanigan M.J.; Edwards N.J.; Bolanos R.; Fasulo D.; Halldorsson B.V.; Hannenhalli S.; Turner R.; Yooseph S.; Lu F.; Nusskern D.R.; Shue B.C.; Zheng X.H.; Zhong F.; Delcher A.L.; Huson D.H.; Kravitz S.A.; Mouchard L.; Reinert K.; Remington K.A.; Clark A.G.; Waterman M.S.; Eichler E.E.; Adams M.D.; Hunkapiller M.W.; Myers E.W.; Venter J.C.;
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]; VARIANT ASN-266; 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); VARIANT ASN-266;
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.