Variant position: 140 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 498 The length of the canonical sequence.
Location on the sequence:
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 NADGTYEVSVYTNLIVRSNG SVLWLPPAIYKSACKIEVKYF
Mouse NADGTYEVSVYTNVIVRSNG SIQWLPPAIYKSACKIEVKHF
Rat NADGTYEVSVYTNVIVRSNG SIQWLPPAIYKSACKIEVKHF
Bovine NADGSYEVSLYTNVVVRSNG SVMWLPPAICKSACKIEVKHF
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
22 – 498 Neuronal acetylcholine receptor subunit beta-4
22 – 236 Extracellular
134 – 134 Key residue for a low dissociation (K(off)) from the conotoxin BuIA
138 – 138 N-linked (GlcNAc...) asparagine
120 – 217 NADGTYEVSVYTNLIVRSNGSVLWLPPAIYKSACKIEVKYFPFDQQNCTLKFRSWTYDHTEIDMVLMTPTASMDDFTPSGEWDIVALPGRRTVNPQDP -> KSLRTGSTWLWWWTGCSCGCSCLCASWALWGSSYRPSSRPMQLLRGPTLPSVTEGPLGCGVRGCEWPGGHFAASFWVVADEALSKYVSIGHQPHQTSHSRGTGKDGGLGCPL. In isoform 2.
140 – 143
Characterization of the human beta4 nAChR gene and polymorphisms in CHRNA3 and CHRNB4.
Lev-Lehman E.; Bercovich D.; Xu W.; Stockton D.W.; Beaudet A.L.;
J. Hum. Genet. 46:362-366(2001)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORM 1); VARIANTS TRP-136; GLY-140 AND VAL-467;
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.