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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q16678: Variant p.Asn453Ser

Cytochrome P450 1B1
Gene: CYP1B1
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Variant information Variant position: help 453 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 Asparagine (N) to Serine (S) at position 453 (N453S, p.Asn453Ser). 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 polar (N) to small size and polar (S) 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 Various CYP1B1 alleles are known. The sequence shown is that of allele CYP1B1*1. Additional information on the polymorphism described.
Variant description: help In allele CYP1B1*4. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 453 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 543 The length of the canonical sequence.
Location on the sequence: help KWPNPENFDPARFLDKDGLI N KDLTSRVMIFSVGKRRCIGE 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                         KWPNPENFDPARFLDKDGLINKDLTSRVMIFSVGKRRCIGE

Mouse                         KWPNPEDFDPARFLDKDGFINKALASSVMIFSVGKRRCIGE

Rat                           KWSNPEDFDPARFLDKDGFINKALASSVMIFSVGKRRCIGE

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 – 543 Cytochrome P450 1B1
Binding site 470 – 470 axial binding residue



Literature citations
Cloning of human full-length CDSs in BD Creator(TM) system donor vector.
Kalnine N.; Chen X.; Rolfs A.; Halleck A.; Hines L.; Eisenstein S.; Koundinya M.; Raphael J.; Moreira D.; Kelley T.; LaBaer J.; Lin Y.; Phelan M.; Farmer A.;
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]; VARIANT SER-453; Submission
NIEHS SNPs program;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS GLY-48; SER-119; ASN-206; LEU-266; VAL-432 AND SER-453; Association of cytochrome P450 1B1 (CYP1B1) polymorphism with steroid receptor status in breast cancer.
Bailey L.R.; Roodi N.; Dupont W.D.; Parl F.F.;
Cancer Res. 58:5038-5041(1998)
Cited for: VARIANTS VAL-432 AND SER-453; Multiple CYP1B1 mutations and incomplete penetrance in an inbred population segregating primary congenital glaucoma suggest frequent de novo events and a dominant modifier locus.
Bejjani B.A.; Stockton D.W.; Lewis R.A.; Tomey K.F.; Dueker D.K.; Jabak M.; Astle W.F.; Lupski J.R.;
Hum. Mol. Genet. 9:367-374(2000)
Cited for: VARIANTS GLC3A GLU-61; PRO-77; 269-SER--PHE-271 DEL; HIS-368; ASN-374; SER-390 AND TRP-469; VARIANTS GLY-48; SER-119; VAL-432 AND SER-453; Molecular genetics of primary congenital glaucoma in Brazil.
Stoilov I.R.; Costa V.P.; Vasconcellos J.P.C.; Melo M.B.; Betinjane A.J.; Carani J.C.E.; Oltrogge E.V.; Sarfarazi M.;
Invest. Ophthalmol. Vis. Sci. 43:1820-1827(2002)
Cited for: VARIANTS GLC3A HIS-368; LYS-387; LEU-437 AND GLY-443; VARIANTS GLY-48; SER-119; VAL-432 AND SER-453; Functional analysis of six different polymorphic CYP1B1 enzyme variants found in an Ethiopian population.
Aklillu E.; Oscarson M.; Hidestrand M.; Leidvik B.; Otter C.; Ingelman-Sundberg M.;
Mol. Pharmacol. 61:586-594(2002)
Cited for: VARIANTS GLY-48; SER-119; VAL-432; GLY-443 AND SER-453; Novel cytochrome P450 1B1 (CYP1B1) mutations in patients with primary congenital glaucoma in France.
Colomb E.; Kaplan J.; Garchon H.-J.;
Hum. Mutat. 22:496-496(2003)
Cited for: VARIANTS GLC3A LYS-229; ARG-232; LYS-387; SER-390; SER-399 AND TYR-423; VARIANTS GLY-48; SER-119; VAL-432 AND SER-453; CYP1B1 gene analysis in primary congenital glaucoma in Indonesian and European patients.
Sitorus R.; Ardjo S.M.; Lorenz B.; Preising M.;
J. Med. Genet. 40:E9-E9(2003)
Cited for: VARIANTS GLC3A ILE-215; 355-ARG--ALA-358 DEL AND MET-364; VARIANTS GLY-48; SER-119; VAL-432 AND SER-453; CYP1B1 mutations in French patients with early-onset primary open-angle glaucoma.
Melki R.; Colomb E.; Lefort N.; Brezin A.P.; Garchon H.-J.;
J. Med. Genet. 41:647-651(2004)
Cited for: VARIANTS GLC3A ASN-81; LYS-229; ARG-232; 269-SER--PHE-271 DEL; LYS-387; HIS-390; TYR-423 AND GLY-443; VARIANTS GLY-48; SER-119; VAL-432 AND SER-453; Mutation spectrum of the CYP1B1 gene in Indian primary congenital glaucoma patients.
Reddy A.B.M.; Kaur K.; Mandal A.K.; Panicker S.G.; Thomas R.; Hasnain S.E.; Balasubramanian D.; Chakrabarti S.;
Mol. Vis. 10:696-702(2004)
Cited for: VARIANTS GLC3A PRO-77; PRO-115; ARG-132; PRO-144; LEU-193; LYS-229; ARG-239; HIS-368; HIS-390; CYS-390; LEU-437 AND ASP-466; VARIANTS GLY-48; SER-119; VAL-432 AND SER-453; Primary role of CYP1B1 in Indian juvenile-onset POAG patients.
Acharya M.; Mookherjee S.; Bhattacharjee A.; Bandyopadhyay A.K.; Daulat Thakur S.K.; Bhaduri G.; Sen A.; Ray K.;
Mol. Vis. 12:399-404(2006)
Cited for: VARIANTS GLC3A CYS-57; LYS-229; HIS-368; LEU-515; THR-523 AND GLY-530; VARIANTS GLY-48; SER-119; VAL-432; SER-453 AND ALA-518;
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.