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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q9NZ43: Variant p.Leu154Ser

Vesicle transport protein USE1
Gene: USE1
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Variant information Variant position: help 154 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 Leucine (L) to Serine (S) at position 154 (L154S, p.Leu154Ser). 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 (L) to small size and polar (S) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -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: help Links to websites of interest for the variant.


Sequence information Variant position: help 154 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 259 The length of the canonical sequence.
Location on the sequence: help EMDVRKRTGVAGSQPVSEKQ L AAELDLVLQRHQNLQEKLAE 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                         EMDVRKRTGVAGSQPVS-----EKQLAAELDLVLQRHQNLQEKLAE

Mouse                         EVDMRKR-AAKGSRPAD-----ERQSASELDLVLQRHQGLQ

Zebrafish                     ENDLRHR----KSLPVD-----ERQSAAELDQILQHHHNLQ

Caenorhabditis elegans        RSDLRKQLLSSNKHRAQ---------DTSEDQEFMKNELVE

Drosophila                    SDALRRRRGADESSSSSGSANVQETSGENMNQAAKYYTNAQ

Baker's yeast                 VMELRKRLLGKGQNKGL-----GYETTKSVDRQIEDQDTLQ

Fission yeast                 ERELRERQQMSNVEASN-------------AQLLTNQRSMQ

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 – 259 Vesicle transport protein USE1
Topological domain 1 – 231 Cytoplasmic
Coiled coil 152 – 231
Alternative sequence 136 – 259 Missing. In isoform 3.
Alternative sequence 147 – 259 Missing. In isoform 2.



Literature citations
Large-scale identification and characterization of human genes that activate NF-kappaB and MAPK signaling pathways.
Matsuda A.; Suzuki Y.; Honda G.; Muramatsu S.; Matsuzaki O.; Nagano Y.; Doi T.; Shimotohno K.; Harada T.; Nishida E.; Hayashi H.; Sugano S.;
Oncogene 22:3307-3318(2003)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1); VARIANT SER-154; Novel genes expressed in hematopoietic stem/progenitor cells from myelodysplastic syndrome patients.
Zhao M.; Gu J.; Li N.; Peng Y.; Han Z.; Chen Z.;
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1); VARIANT SER-154; 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] (ISOFORMS 1 AND 2); VARIANT SER-154;
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.