UniProtKB/Swiss-Prot P13569: Variant p.Ser909Ile

Cystic fibrosis transmembrane conductance regulator
Gene: CFTR
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Variant information Variant position:

909 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant:

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:

From Serine (S) to Isoleucine (I) at position 909 (S909I, p.Ser909Ile). 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 small size and polar (S) to medium size and hydrophobic (I) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score:

-2 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
Other resources:

Links to websites of interest for the variant.

Variant rs1800107 [ dbSNP | Ensembl ]

Sequence information Variant position:

909 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length:

1480 The length of the canonical sequence.
Location on the sequence:

LQDKGNSTHSRNNSYAVIIT S TSSYYVFYIYVGVADTLLAM 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                         LQD--KGNSTHSRNNSYAVIITSTSSYYVFYIYVGVADTLLAM

Gorilla                       LQD--KGNSTHSRNNSYAVIITSTSSYYVFYIYVGVADTLL

                              SQD--KGNSTQSVNSSYAVIFTSTSAYYIFYIYVGVADTLL

Rhesus macaque                PQD--KGNSTYSRNNSYAVIITRTSSYYVFYIYVGVADTLL

Chimpanzee                    LQD--KGNSTHSRNNSYAVIITSTSSYYVFYIYVGVADTLL

Mouse                         VNS--GNNGTKISNSSYVVIITSTSFYYIFYIYVGVADTLL

Rat                           VNG--GNNGTKIANTSYVVVITSSSFYYIFYIYVGVADTLL

Pig                           PQD--KGNSTKGANNSYAVIITSTSAYYVFYIYVGVADGLL

Bovine                        FQD--KGNSTKSANNSYAVIITSTSSYYIFYIYVGVADTLL

Rabbit                        PQD--KENSTKSGNSSYAVIITNTSSYYFFYIYVGVADTLL

Sheep                         LQD--KGNSTKNASNSYAVIITSTSSYYIFYIYVGVADTLL

Horse                         PQD--SGNSTKGANNSYAVIITSTSSYYVFYIYVGVADTLL

Xenopus laevis                AINMTSNENVSEVSDTLSVIVTHTSFYYVFYIYVGVADSLL

Zebrafish                     NMT--KHSNASSSGQTYAITVTPTSSYYILYIYVATSESLL

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	1 – 1480	Cystic fibrosis transmembrane conductance regulator
Topological domain	880 – 918	Extracellular
Domain	859 – 1155	ABC transmembrane type-1 2
Glycosylation	894 – 894	N-linked (GlcNAc...) asparagine
Glycosylation	900 – 900	N-linked (GlcNAc...) asparagine
Alternative sequence	606 – 1480	Missing. In isoform 3.
Mutagenesis	894 – 894	N -> D. Abolishes N-glycosylation, enhances endocytosis and impairs subsequent recycling to the cell surface; when associated with D-900.
Mutagenesis	900 – 900	N -> D. Abolishes N-glycosylation, enhances endocytosis and impairs subsequent recycling to the cell surface; when associated with D-894.

Literature citations
No reference for the current variant in UniProtKB/Swiss-Prot.

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.