# US 11,441,136 B2 · DNase variants

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- Number: US 11,441,136 B2
- Document ID: US11441136B2
- Status: Granted
- Kind: B2
- Application number: 16/757,557
- Filed: 2018-10-26
- Published: 2020-10-15
- Granted: 2022-09-13
- Earliest claimed: 2017-10-27
- Assignees: Novozymes A/S
- Applicants: Novozymes A/S
- Inventors: Lars Henrik Oestergaard; Lars Giger; Annette Helle Johansen; Lars Beier; Jurgen Carsten Franz Knotzel; Gernot J. Abel; Klaus Gori
- Web page: https://patentgrep.com/patent/US11441136B2

## CPC

- C12N 9/22: Ribonucleases {[RNase]; Deoxyribonucleases [DNase]}
- C12Y 301/22001: Deoxyribonuclease II (3.1.22.1)
- C12N: MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA (microbiological testing media C12Q1/00)
- C12Y: ENZYMES

## Abstract

The present invention relates to polypeptide variants and methods for obtaining variants. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants.

## Claims

### Claim 1

A DNase variant, which comprises two or more substitutions selected from the group consisting of: T1I, T1L, T1V, S13Y, T22P, S25P, S27L, S39P, S42G, S42A, S42T, S57W, S57Y, S57F, S59V, S59I, S59L, V76L, V76I, Q109R, S116D, S116E, T127V, T127I, T127L, S144P, A147H, S167L, S167I, S167V, G175D and G175E, wherein
the positions correspond to the positions of SEQ ID NO: 1 (numbering according to SEQ ID NO: 1),
the variant has a sequence identity to the polypeptide shown in SEQ ID NO: 1 or the polypeptide shown in SEQ ID NO: 28 of at least 90%, and
the variant has DNase activity.

### Claim 2 (depends on 1)

The DNase variant of claim 1, wherein the variant has a sequence identity to the polypeptide shown in SEQ ID NO: 1 or the polypeptide shown in SEQ ID NO: 28 of at least 95%, and the variant has DNase activity.

### Claim 3 (depends on 1)

The DNase variant according to claim 1 wherein the variant comprises one or more of the substitution sets selected from the group consisting of: T1I+S13Y, T1I+T22P, T1I+S25P, T1I+S27L, T1I+S39P, T1I+S42G, T1I+S42A, T1I+S42T, T1I+S57W, T1I+S57Y, T1I+S57F, T1I+S59V, T1I+S59I, T1I+S59L, T1I+V76L, T1I+V76I, T1I+Q109R, T1I+S116D, T1I+S116E, T1I+T127V, T1I+T127I, T1I+T127L, T1I+S144P, T1I+A147H, T1I+S167L, T1I+S167I, T1I+S167V, T1I+G175D, T1I+G175E, T1L+S13Y, T1L+T22P, T1L+S25P, T1L+S27L, T1L+S39P, T1L+S42G, T1L+S42A, T1L+S42T, T1L+S57W, T1L+S57Y, T1L+S57F, T1L+S59V, T1L+S59I, T1L+S59L, T1L+V76L, T1L+V76I, T1L+Q109R, T1L+S116D, T1L+S116E, T1L+T127V, T1L+T127I, T1L+T127L, T1L+S144P, T1L+A147H, T1L+S167L, T1L+5167I, T1L+S167V, T1L+G175D, T1L+G175E, T1V+S13Y, T1V+T22P, T1V+S25P, T1V+S27L, T1V+S39P, T1V+S42G, T1V+S42A, T1V+S42T, T1V+S57W, T1V+S57Y, T1V+S57F, T1V+S59V, T1V+559I, T1V+S59L, T1V+V76L, T1V+V76I, T1V+Q109R, T1V+S116D, T1V+S116E, T1V+T127V, T1V+T127I, T1V+T127L, T1V+S144P, T1V+A147H, T1V+S167L, T1V+5167I, T1V+S167V, T1V+G175D, T1V+G175E, S13Y+T22P, S13Y+S25P, S13Y+S27L, S13Y+S39P, S13Y+S42G, S13Y+S42A, S13Y+S42T, S13Y+S57W, S13Y+S57Y, S13Y+S57F, S13Y+S59V, S13Y+559I, S13Y+S59L, S13Y+V76L, S13Y+V76I, S13Y+Q109R, S13Y+S116D, S13Y+S116E, S13Y+T127V, S13Y+T127I, S13Y+T127L, S13Y+S144P, S13Y+A147H, S13Y+S167L, S13Y+5167I, S13Y+S167V, S13Y+G175D, S13Y+G175E, T22P+S25P, T22P+S27L, T22P+S39P, T22P+S42G, T22P+S42A, T22P+S42T, T22P+S57W, T22P+S57Y, T22P+S57F, T22P+S59V, T22P+S59I, T22P+S59L, T22P+V76L, T22P+V76I, T22P+Q109R, T22P+S116D, T22P+S116E, T22P+T127V, T22P+T127I, T22P+T127L, T22P+S144P, T22P+A147H, T22P+S167L, T22P+S167I, T22P+S167V, T22P+G175D, T22P+G175E, S25P+S27L, S25P+S39P, S25P+S42G, S25P+S42A, S25P+S42T, S25P+S57W, S25P+S57Y, S25P+S57F, S25P+S59V, S25P+S59I, S25P+S59L, S25P+V76L, S25P+V76I, S25P+Q109R, S25P+S116D, S25P+S116E, S25P+T127V, S25P+T127I, S25P+T127L, S25P+S144P, S25P+A147H, S25P+S167L, S25P+S167I, S25P+S167V, S25P+G175D, S25P+G175E, S27L+S39P, S27L+S42G, S27L+S42A, S27L+S42T, S27L+S57W, S27L+S57Y, S27L+S57F, S27L+S59V, S27L+S59I, S27L+S59L, S27L+V76L, S27L+V76I, S27L+Q109R, S27L+S116D, S27L+S116E, S27L+T127V, S27L+T127I, S27L+T127L, S27L+S144P, S27L+A147H, S27L+S167L, S27L+S167I, S27L+S167V, S27L+G175D, S27L+G175E, S39P+S42G, S39P+S42A, S39P+S42T, S39P+S57W, S39P+S57Y, S39P+S57F, S39P+S59V, S39P+S59I, S39P+S59L, S39P+V76L, S39P+V76I, S39P+Q109R, S39P+S116D, S39P+S116E, S39P+T127V, S39P+T127I, S39P+T127L, S39P+S144P, S39P+A147H, S39P+S167L, S39P+S167I, S39P+S167V, S39P+G175D, S39P+G175E, S42G+S57W, S42G+S57Y, S42G+S57F, S42G+S59V, S42G+S59I, S42G+S59L, S42G+V76L, S42G+V76I, S42G+Q109R, S42G+S116D, S42G+S116E, S42G+T127V, S42G+T127I, S42G+T127L, S42G+S144P, S42G+A147H, S42G+S167L, S42G+S167I, S42G+S167V, S42G+G175D, S42G+G175E, S42A+S57W, S42A+S57Y, S42A+S57F, S42A+S59V, S42A+S59I, S42A+S59L, S42A+V76L, S42A+V76I, S42A+Q109R, S42A+S116D, S42A+S116E, S42A+T127V, S42A+T127I, S42A+T127L, S42A+S144P, S42A+A147H, S42A+S167L, S42A+S167I, S42A+S167V, S42A+G175D, S42A+G175E, S42T+S57W, S42T+S57Y, S42T+S57F, S42T+S59V, S42T+S59I, S42T+S59L, S42T+V76L, S42T+V76I, S42T+Q109R, S42T+S116D, S42T+S116E, S42T+T127V, S42T+T127I, S42T+T127L, S42T+S144P, S42T+A147H, S42T+S167L, S42T+S167I, S42T+S167V, S42T+G175D, S42T+G175E, S57W+S59V, S57W+S59I, S57W+S59L, S57W+V76L, S57W+V76I, S57W+Q109R, S57W+S116D, S57W+S116E, S57W+T127V, S57W+T127I, S57W+T127L, S57W+S144P, S57W+A147H, S57W+S167L, S57W+S167I, S57W+S167V, S57W+G175D, S57W+G175E, S57Y+S59V, S57Y+S59I, S57Y+S59L, S57Y+V76L, S57Y+V76I, S57Y+Q109R, S57Y+S116D, S57Y+S116E, S57Y+T127V, S57Y+T127I, S57Y+T127L, S57Y+S144P, S57Y+A147H, S57Y+S167L, S57Y+S167I, S57Y+S167V, S57Y+G175D, S57Y+G175E, S57F+S59V, S57F+S59I, S57F+S59L, S57F+V76L, S57F+V76I, S57F+Q109R, S57F+S116D, S57F+S116E, S57F+T127V, S57F+T127I, S57F+T127L, S57F+S144P, S57F+A147H, S57F+S167L, S57F+S167I, S57F+S167V, S57F+G175D, S57F+G175E, S59V+V76L, S59V+V76I, S59V+Q109R, S59V+S116D, S59V+S116E, S59V+T127V, S59V+T127I, S59V+T127L, S59V+S144P, S59V+A147H, S59V+S167L, S59V+S167I, S59V+S167V, S59V+G175D, S59V+G175E, S59I+V76L, S59I+V76I, S59I+Q109R, S59I+S116D, S59I+S116E, S59I+T127V, S59I+T127I, S59I+T127L, S59I+S144P, S59I+A147H, S59I+S167L, S59I+S167I, S59I+S167V, S59I+G175D, S59I+G175E, S59L+V76L, S59L+V76I, S59L+Q109R, S59L+S116D, S59L+S116E, S59L+T127V, S59L+T127I, S59L+T127L, S59L+S144P, S59L+A147H, S59L+S167L, S59L+S167I, S59L+S167V, S59L+G175D, S59L+G175E, V76L+Q109R, V76L+S116D, V76L+S116E, V76L+T127V, V76L+T127I, V76L+T127L, V76L+S144P, V76L+A147H, V76L+S167L, V76L+S167I, V76L+S167V, V76L+G175D, V76L+G175E, V76I+Q109R, V76I+S116D, V76I+S116E, V76I+T127V, V76I+T127I, V76I+T127L, V76I+S144P, V76I+A147H, V76I+S167L, V76I+S167I, V76I+S167V, V76I+G175D, V76I+G175E, Q109R+S116D, Q109R+S116E, Q109R+T127V, Q109R+T127I, Q109R+T127L, Q109R+S144P, Q109R+A147H, Q109R+S167L, Q109R+S167I, Q109R+S167V, Q109R+G175D, Q109R+G175E, S116D+T127V, S116D+T127I, S116D+T127L, S116D+S144P, S116D+A147H, S116D+S167L, S116D+S167I, S116D+S167V, S116D+G175D, S116D+G175E, S116E+T127V, S116E+T127I, S116E+T127L, S116E+S144P, S116E+A147H, S116E+S167L, S116E+5167I, S116E+S167V, S116E+G175D, S116E+G175E, T127V+S144P, T127V+A147H, T127V+S167L, T127V+S167I, T127V+S167V, T127V+G175D, T127V+G175E, T127I+S144P, T127I+A147H, T127I+S167L, T127I+51671, T127I+S167V, T127I+G175D, T127I+G175E, T127L+S144P, T127L+A147H, T127L+S167L, T127L+S167I, T127L+S167V, T127L+G175D, T127L+G175E, S144P+A147H, S144P+S167L, S144P+S167I, S144P+S167V, S144P+G175D, S144P+G175E, A147H+S167L, A147H+S167I, A147H+S167V, A147H+G175D, A147H+G175E, S167L+G175D, S167L+G175E, 5167I+G175D, 5167I+G175E, S167V+G175D and S167V+G175E.

### Claim 4 (depends on 1)

The DNase variant according to claim 1, wherein the two or more mutations are selected from the group consisting of T1I, S13Y, T22P, S25P, S27L, S39P, S42G, S57W, S59V, V76L, Q109R, S116D, T127V, S144P, A147H, S167L and G175D.

### Claim 5 (depends on 1)

The DNase variant according to claim 1, wherein the variant comprises at least three substitutions selected from the group consisting of: T1I, T22P, S57W, V76L, A147H, S167L and G175D.

### Claim 6 (depends on 5)

The DNase variant according to claim 5, wherein the DNase variant is selected from the group consisting of:
a) T1I+T22P+S57W+V76L+A147H+S167L,
b) T1I+T22P+S57W+V76L+A147H+G175D,
c) T1I+T22P+S57W+V76L+S167L+G175D,
d) T1I+T22P+S57W+A147H+S167L+G175D,
e) T1I+T22P+V76L+A147H+S167L+G175D,
f) T1I+S57W+V76L+A147H+S167L+G175D,
g) T22P+S57W+V76L+A147H+S167L+G175D, and
h) T1I+T22P+S57W+V76L+A147H+S167L+G175D.

### Claim 7 (depends on 1)

The DNase variant according to claim 1, wherein the variant comprises 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 or all of the mutations selected from the group consisting of: T1I, S13Y, T22P, S25P, S27L, S39P, S42G, S57W, S59V, V76L, Q109R, S116D, T127V, S144P, A147H, S167L and G175D.

### Claim 8 (depends on 1)

The DNase variant of claim 1, wherein the variant further comprises one or more of the substitutions selected from the group consisting of: G4N, T5F, T5C, P6V, P6G, S7D, S7T, K8V, S9K, S9Q, S9V, S9L, S9F, S9P, S9R, A10D, A10M, A10I, A10Q, A10V, A10L, A10K, Q12S, Q12V, Q12E, Q14M, Q14R, N16S, A17C, A17V, A17E, A17T, T19K, T19L, T19S, T191, T19V, K21E, K21M, G24Y, S27R, G28L, Y29W, S30K, S30D, S30H, S30T, D32Q, L33K, 138V, 138M, Q40V, V49R, L511, K521, K52H, A55S, D56I, D56L, D56T, Y58A, Y58T, N61D, P63A, T65L, T651, T65V, T65R, T65K, S66W, S66Y, S68V, S681, S68W, S68Y, S68H, S68C, S68T, S68L, T77N, T77Y, T77W, T77R, F781, F78H, F78Y, F78C, T79G, T79R, N80K, S82L, S82E, S82K, S82R, S82H, D83C, D83F, D83L, L92T, A93G, E94N, G99S, S101D, S101A, S102M, S102L, S102V, S102A, S102K, S102T, S102R, T104P, T104A, T105V, T1051, S106L K107L, K107C, K107R, K107H, K107S, K107M, K107E, K107A, K107D, A112S, A125K, S1261, S126E, S126A, S126C, S130A S130E, G132R, D135R, T138Q, W139R, R143E, R143K, G145V, G145E, G145D, G145A, G149S, K152H, K152R, S156C, S156G, S156K, S156R, S156T, S156A, T157S, Y159F, K160V, W161L, W161Y, G162Q, G162D, G162M, G162R, G162A, G162S, G162E, G162L, G162K, G162V, G162H, S164R, S164T, Q166D, S168V, S168E, S168D, S168L, K170S, K170L, K170F, K170R, T171D, T171E, T171A, T171C, A172G, A172S, L173T, L173A, L173V, Q174L, M176H, L1771, N178D, N178E, N178T, N178S, N178A, S179E, S181R, S181E, S181D, S181F, S181H, S181W, S181L, S181M, S181Y, S181Q, S181G, S181A, Y182M, Y182C, Y182K, Y182G, Y182A, Y182S, Y182V, Y182D, Y182Q, Y182F, Y182L, Y182N, Y1821, Y182E, Y182T and Y182W.

### Claim 9 (depends on 8)

The DNase variant according to claim 8, wherein the DNase variant is selected from the group consisting of:
a) T1I+S13Y+T22P+S25P+S27L+S39P+S42G+S57W+S59V+V76L+S144P+A147H+S167L+G175D;
b) T1I+S13Y+T22P+S27L+S42G+S57W+S59V+V76L+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
c) T1I+S13Y+T22P+S25P+S27L+S39P+S42G+S57W+S59V+V76L+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
d) T1I+S13Y+T22P+S25P+S27L+S39P+S42G+S57W+S59V+V76L+T77Y+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
e) T1I+T22P+D56I+S57W+V76L+Q109R+S116D+A147H+G162S+S167L+G175N;
f) T1I+S13Y+T22P+S27L+S39P+S42G+D56I+S57W+S59V+V76L+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
g) T1I+T22P+S25P+S27L+S42G+D56I+S57Y+S59V+V76L+T77Y+Q109R+S116D+T127V+S144P+A147H+Q166D+S167L+G175D+S181L;
h) T1I+S13Y+T22P+S25P+S27L+S39P+S42G+D56I+S57W+S59V+V76L+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
i) T1I+S13Y+T22P+S25P+S27L+S39P+S42G+D56I+S57W+S59V+V76L+Q109R+S116D+T127V+S144P+A147H+Q166D+S167L+G175D;
j) T1I+S13Y+T22P+S27R+S39P+S42G+D56I+S57W+S59V+V76L+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
k) T1I+S13Y+T22P+S27L+S39P+S42G+D56I+S57W+S59V+T65L+V76L+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
l) T1I+S13Y+T22P+S27L+L33K+S39P+S42G+D56I+S57W+S59V+T65V+V76L+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
m) T1I+S13Y+T22P+S25P+S27R+S39P+S42G+S57W+S59V+S66W+V76L+T77Y+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
n) T1I+S13Y+T22P+S25P+S27L+L33K+S39P+S42G+S57W+S59V+T65V+V76L+T77Y+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
o) T1I+S13Y+T22P+S25P+S27L+L33K+S39P+S42G+S57W+S59V+S66Y+V76L+T77Y+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
p) T1I+S13Y+T22P+S25P+S27L+S39P+S42G+S57W+S59V+T65V+S66Y+V76L+T77Y+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
q) T1I+S13Y+T22P+S27L+S39P+S42G+D56L+S57W+S59V+T65V+V76L+Q109R+S116D+T127V+S144P+A147H+G162D+S167L+G175D;
r) T1I+S13Y+T22P+S27R+S39P+S42G+D56L+S57W+S59V+T65V+V76L+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
s) T1I+S13Y+T22P+S27R+S39P+S42G+D56L+S57W+S59V+T65V+V76L+Q109R+S116D+T127V+S144P+A147H+G162D+S167L+G175D;
t) T1I+S13Y+T22P+S27K+S39P+S42G+D56I+S57W+S59V+T65V+V76L+S106L+Q109R+S116D+T127V+S144P+A147H+S167L+G175D;
u) T1I+S13Y+T22P+S27K+S39P+S42G+D56I+S57W+S59V+T65V+V76L+Q109R+S116D+T127V+S130A+S144P+A147H+S167L+G175D;
v) T1I+S13Y+T22P+S27L+S39P+S42G+D56L+S57W+S59V+T65L+V76L+Q109R+S116D+T127V+S130A+S144P+A147H+S167L+G175D; and
w) T1I+S13Y+T22P+S27L+S39P+S42G+D56I+S57W+S59V+T65V+V76L+Q109R+S116D+T127V+S144P+A147H+G162D+S167L+G175.

### Claim 10 (depends on 1)

The DNase variant according to claim 1, wherein the variant comprises one or both motifs [D/M/L][S/T]GYSR[D/N] (SEQ ID NO: 25) or ASXNRSKG (SEQ ID NO: 26).