NTAN1

Chr 16

N-terminal asparagine amidase

Also known as: PNAA, PNAD

The protein encoded by this gene functions in a step-wise process of protein degradation through the N-end rule pathway. This protein acts as a tertiary destabilizing enzyme that deamidates N-terminal L-Asn residues on proteins to produce N-terminal L-Asp. L-Asp substrates are subsequently conjugated to L-Arg, which is recognized by specific E3 ubiquitin ligases and targeted to the proteasome. Pseudogenes of this gene are located on the long arms of chromosomes 8, 10 and 12. Alternative splicing results in multiple transcript variants that encode different protein isoforms. [provided by RefSeq, Jul 2012]

OMIMResearchGenerating clinical summary…
0
Active trials
3
Pubs (1 yr)
P/LP submissions
P/LP missense
1.10
LOEUF
Mechanism

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.10LOEUF
pLI 0.000
Z-score 1.25
OE 0.67 (0.421.10)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
0.40Z-score
OE missense 0.91 (0.791.04)
143 obs / 157.2 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.67 (0.421.10)
00.351.4
Missense OE?0.91 (0.791.04)
00.61.4
Synonymous OE?1.07
01.21.6
LoF obs/exp: 11 / 16.5Missense obs/exp: 143 / 157.2Syn Z: -0.43

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

NTAN1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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