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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P35555: Variant p.Ile2269Thr

Fibrillin-1
Gene: FBN1
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Variant information Variant position: help 2269 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help 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: help From Isoleucine (I) to Threonine (T) at position 2269 (I2269T, p.Ile2269Thr). 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 hydrophobic (I) to medium size and polar (T) 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 In MFS. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 2269 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 2871 The length of the canonical sequence.
Location on the sequence: help DECEEGKHDCTEKQMECKNL I GTYMCICGPGYQRRPDGEGC 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                         DECEEGKHDCTEKQMECKNLIGTYMCICGPGYQRRPDGEGC

Mouse                         DECAEGKHDCTEKQMECKNLIGTYMCICGPGYQRRPDGEGC

Pig                           DECEEGKHDCAEKQMECKNLIGMYICICGPGYQRRPDGEGC

Bovine                        DECEEGKHDCAEKQMECKNLIGTYLCICGPGYQRRPDGEGC

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 45 – 2731 Fibrillin-1
Domain 2247 – 2290 EGF-like 39; calcium-binding
Region 1528 – 2731 C-terminal domain
Disulfide bond 2258 – 2274



Literature citations
TGGE screening of the entire FBN1 coding sequence in 126 individuals with Marfan syndrome and related fibrillinopathies.
Katzke S.; Booms P.; Tiecke F.; Palz M.; Pletschacher A.; Turkmen S.; Neumann L.M.; Pregla R.; Leitner C.; Schramm C.; Lorenz P.; Hagemeier C.; Fuchs J.; Skovby F.; Rosenberg T.; Robinson P.N.;
Hum. Mutat. 20:197-208(2002)
Cited for: VARIANTS MFS CYS-62; TYR-587; TYR-596; ASN-654; TYR-681; ARG-683; TRP-685; VAL-723; PHE-734; TYR-748; GLY-776; ARG-781; ARG-908; GLY-921; PRO-1790; SER-1806; VAL-1931 DEL; TYR-1998; GLY-2221; THR-2269 AND TRP-2335; VARIANTS ECTOL1 CYS-115; TYR-661 AND TYR-2339; VARIANT MET-2101; The importance of mutation detection in Marfan syndrome and Marfan-related disorders: report of 193 FBN1 mutations.
Comeglio P.; Johnson P.; Arno G.; Brice G.; Evans A.; Aragon-Martin J.; da Silva F.P.; Kiotsekoglou A.; Child A.;
Hum. Mutat. 28:928-928(2007)
Cited for: VARIANTS MFS CYS-122; SER-214; 248-ASP--HIS-2871 DEL; 351-GLN--HIS-2871 DEL; ARG-365; 366-TRP--HIS-2871 DEL; TRP-474; CYS-545; TRP-546; 565-ARG--HIS-2871 DEL; TYR-727; CYS-828; TYR-832; 861-ARG--HIS-2871 DEL; VAL-882; CYS-974; HIS-976; 994-GLU--HIS-2871 DEL; TYR-1032; THR-1048; TYR-1074; ILE-1088; 1125-ARG--HIS-2871 DEL; TYR-1138; 1140-CYS--HIS-2871 DEL; GLY-1158; HIS-1170; ARG-1223; ARG-1249; TYR-1307; ARG-1326; LEU-1346; LYS-1366; TYR-1402; ALA-1424; ASP-1427; ARG-1485; TYR-1528; 1541-ARG--HIS-2871 DEL; ARG-1622; TYR-1720; TYR-1793; VAL-1796; SER-1806; LYS-1811; CYS-1830; PHE-1835; TRP-1847; ASP-1879; ARG-1987; 2053-CYS--HIS-2871 DEL; MET-2118; GLU-2127; ASP-2144; PRO-2145; TYR-2153; THR-2185; 2220-ARG--HIS-2871 DEL; THR-2269; TRP-2274; LYS-2447; ARG-2489; MET-2520; ARG-2536; 2542-GLN--HIS-2871 DEL; VAL-2555; 2571-CYS--HIS-2871 DEL; TYR-2577; THR-2585; LYS-2610 AND ARG-2618; VARIANTS ECTOL1 CYS-63; SER-68; CYS-240; TRP-365; CYS-545; ARG-596; PRO-634; VAL-882; 1086-CYS--HIS-2871 DEL; ASN-1155; ARG-1692 DEL; GLY-2250; CYS-2272; LYS-2447 AND ARG-2448; VARIANTS ASP-127; ARG-160; SER-164; 215-ARG--HIS-2871 DEL; 364-ARG--HIS-2871 DEL; ARG-504; TYR-652; 653-VAL--HIS-2871 DEL; 752-SER--HIS-2871 DEL; CYS-954; 966-GLU--HIS-2871 DEL; 988-TRP--HIS-2871 DEL; GLY-1028; GLY-1406; SER-1633; 1644-ARG--HIS-2871 DEL; PHE-1777; 1796-GLY--HIS-2871 DEL; TYR-1812; SER-1907; HIS-1930; LYS-2105; ASP-2136; 2169-GLU--HIS-2871 DEL; ARG-2195; PRO-2224; 2229-GLU--HIS-2871 DEL; MET-2234; THR-2273; TRP-2289; TYR-2302; TYR-2365; TRP-2470; ILE-2516; SER-2526; PHE-2541; TRP-2554; TRP-2726 AND 2840-LYS--HIS-2871 DEL; FBN1 mutation screening of patients with Marfan syndrome and related disorders: detection of 46 novel FBN1 mutations.
Attanasio M.; Lapini I.; Evangelisti L.; Lucarini L.; Giusti B.; Porciani M.; Fattori R.; Anichini C.; Abbate R.; Gensini G.; Pepe G.;
Clin. Genet. 74:39-46(2008)
Cited for: VARIANTS MFS TYR-123; SER-136; SER-177; TYR-177; SER-214; 348-GLN--HIS-2871 DEL; 429-ARG--HIS-2871 DEL; ARG-488; TYR-576; ARG-582; PHE-623; CYS-635; TYR-684; CYS-721; ARG-816; SER-880; GLU-884; TYR-1008; SER-1042; 1125-ARG--HIS-2871 DEL; 1136-TYR--HIS-2871 DEL; TRP-1182; TYR-1265; ARG-1320; 1534-CYS--HIS-2871 DEL; 1539-ARG--HIS-2871 DEL; 1541-ARG--HIS-2871 DEL; GLY-1631; ARG-1672; TYR-1672; GLY-1674; 1735-GLN--HIS-2871 DEL; LYS-1811; ARG-1847; TYR-1860; LYS-1894; TYR-1900; GLY-1934; TRP-1977; 2057-ARG--HIS-2871 DEL; 2062-TYR--HIS-2871 DEL; 2064-LYS--HIS-2871 DEL; TYR-2084; LYS-2130; ARG-2221; TYR-2232; THR-2269; THR-2284; TYR-2470; PRO-2561; LYS-2570; ARG-2577 AND 2694-ARG--HIS-2871 DEL; VARIANTS PRO-39; ARG-937; ALA-1020; TRP-2726 AND 2774-LYS--HIS-2871 DEL;
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.